Scaffold verification of SD-JWT VP token (#29859) (#33752)

Closes #29859

Signed-off-by: Ingrid Kamga <Ingrid.Kamga@adorsys.com>

core/src/main/java/org/keycloak/crypto/ECCurve.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.crypto;
+
+public enum ECCurve {
+    P256,
+    P384,
+    P521;
+
+    /**
+     * Convert standard EC curve names (and aliases) into this enum.
+     */
+    public static ECCurve fromStdCrv(String crv) {
+        switch (crv) {
+            case "P-256":
+            case "secp256r1":
+                return P256;
+            case "P-384":
+            case "secp384r1":
+                return P384;
+            case "P-521":
+            case "secp521r1":
+                return P521;
+            default:
+                throw new IllegalArgumentException("Unexpected EC curve: " + crv);
+        }
+    }
+}

core/src/main/java/org/keycloak/sdjwt/IssuerSignedJwtVerificationOpts.java

@@ -17,34 +17,25 @@
 
 package org.keycloak.sdjwt;
 
-import org.keycloak.crypto.SignatureVerifierContext;
-
 /**
  * Options for Issuer-signed JWT verification.
  *
  * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
  */
 public class IssuerSignedJwtVerificationOpts {
-    private final SignatureVerifierContext verifier;
     private final boolean validateIssuedAtClaim;
     private final boolean validateExpirationClaim;
     private final boolean validateNotBeforeClaim;
 
     public IssuerSignedJwtVerificationOpts(
-            SignatureVerifierContext verifier,
             boolean validateIssuedAtClaim,
             boolean validateExpirationClaim,
             boolean validateNotBeforeClaim) {
-        this.verifier = verifier;
         this.validateIssuedAtClaim = validateIssuedAtClaim;
         this.validateExpirationClaim = validateExpirationClaim;
         this.validateNotBeforeClaim = validateNotBeforeClaim;
     }
 
-    public SignatureVerifierContext getVerifier() {
-        return verifier;
-    }
-
     public boolean mustValidateIssuedAtClaim() {
         return validateIssuedAtClaim;
     }
@@ -62,16 +53,10 @@ public class IssuerSignedJwtVerificationOpts {
     }
 
     public static class Builder {
-        private SignatureVerifierContext verifier;
         private boolean validateIssuedAtClaim;
         private boolean validateExpirationClaim = true;
         private boolean validateNotBeforeClaim = true;
 
-        public Builder withVerifier(SignatureVerifierContext verifier) {
-            this.verifier = verifier;
-            return this;
-        }
-
         public Builder withValidateIssuedAtClaim(boolean validateIssuedAtClaim) {
             this.validateIssuedAtClaim = validateIssuedAtClaim;
             return this;
@@ -89,7 +74,6 @@ public class IssuerSignedJwtVerificationOpts {
 
         public IssuerSignedJwtVerificationOpts build() {
             return new IssuerSignedJwtVerificationOpts(
-                    verifier,
                     validateIssuedAtClaim,
                     validateExpirationClaim,
                     validateNotBeforeClaim

core/src/main/java/org/keycloak/sdjwt/JwkParsingUtils.java

@@ -0,0 +1,98 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.keycloak.crypto.Algorithm;
+import org.keycloak.crypto.AsymmetricSignatureVerifierContext;
+import org.keycloak.crypto.ECCurve;
+import org.keycloak.crypto.ECDSASignatureVerifierContext;
+import org.keycloak.crypto.KeyType;
+import org.keycloak.crypto.KeyWrapper;
+import org.keycloak.crypto.SignatureVerifierContext;
+import org.keycloak.jose.jwk.JWK;
+import org.keycloak.util.JWKSUtils;
+
+import java.util.Objects;
+
+/**
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public class JwkParsingUtils {
+
+    public static SignatureVerifierContext convertJwkNodeToVerifierContext(JsonNode jwkNode) {
+        JWK jwk;
+
+        try {
+            jwk = SdJwtUtils.mapper.convertValue(jwkNode, JWK.class);
+        } catch (Exception e) {
+            throw new IllegalArgumentException("Malformed JWK");
+        }
+
+        return convertJwkToVerifierContext(jwk);
+    }
+
+    public static SignatureVerifierContext convertJwkToVerifierContext(JWK jwk) {
+        // Wrap JWK
+
+        KeyWrapper keyWrapper;
+
+        try {
+            keyWrapper = JWKSUtils.getKeyWrapper(jwk);
+            Objects.requireNonNull(keyWrapper);
+        } catch (Exception e) {
+            throw new IllegalArgumentException("Unsupported or invalid JWK");
+        }
+
+        // Build verifier
+
+        // KeyType.EC
+        if (keyWrapper.getType().equals(KeyType.EC)) {
+            if (keyWrapper.getAlgorithm() == null) {
+                Objects.requireNonNull(keyWrapper.getCurve());
+
+                String alg = null;
+                switch (ECCurve.fromStdCrv(keyWrapper.getCurve())) {
+                    case P256:
+                        alg = Algorithm.ES256;
+                        break;
+                    case P384:
+                        alg = Algorithm.ES384;
+                        break;
+                    case P521:
+                        alg = Algorithm.ES512;
+                        break;
+                }
+
+                keyWrapper.setAlgorithm(alg);
+            }
+
+            return new ECDSASignatureVerifierContext(keyWrapper);
+        }
+
+        // KeyType.RSA
+        if (keyWrapper.getType().equals(KeyType.RSA)) {
+            return new AsymmetricSignatureVerifierContext(keyWrapper);
+        }
+
+        // KeyType is not supported
+        // This is unreachable as of now given that `JWKSUtils.getKeyWrapper` will fail
+        // on JWKs with key type not equal to EC or RSA.
+        throw new IllegalArgumentException("Unexpected key type: " + keyWrapper.getType());
+    }
+}

core/src/main/java/org/keycloak/sdjwt/SdJws.java

@@ -38,6 +38,9 @@ import com.fasterxml.jackson.databind.JsonNode;
  *
  */
 public abstract class SdJws {
+
+    public static final String CLAIM_NAME_ISSUER = "iss";
+
     private final JWSInput jwsInput;
     private final JsonNode payload;
 
@@ -158,7 +161,7 @@ public abstract class SdJws {
      * @param issuers List of trusted issuers
      */
     public void verifyIssClaim(List<String> issuers) throws VerificationException {
-        verifyClaimAgainstTrustedValues(issuers, "iss");
+        verifyClaimAgainstTrustedValues(issuers, CLAIM_NAME_ISSUER);
     }
 
     /**

core/src/main/java/org/keycloak/sdjwt/SdJwt.java

@@ -26,6 +26,7 @@ import java.util.stream.IntStream;
 
 import org.keycloak.common.VerificationException;
 import org.keycloak.crypto.SignatureSignerContext;
+import org.keycloak.crypto.SignatureVerifierContext;
 import org.keycloak.sdjwt.vp.KeyBindingJWT;
 
 import com.fasterxml.jackson.databind.JsonNode;
@@ -44,6 +45,7 @@ public class SdJwt {
     private final IssuerSignedJWT issuerSignedJWT;
     private final List<SdJwtClaim> claims;
     private final List<String> disclosures = new ArrayList<>();
+    private final SdJwtVerificationContext sdJwtVerificationContext;
 
     private SdJwt(DisclosureSpec disclosureSpec, JsonNode claimSet, List<SdJwt> nesteSdJwts,
                   Optional<KeyBindingJWT> keyBindingJWT,
@@ -65,6 +67,12 @@ public class SdJwt {
 
         nesteSdJwts.stream().forEach(nestedJwt -> this.disclosures.addAll(nestedJwt.getDisclosures()));
         this.disclosures.addAll(getDisclosureStrings(claims));
+
+        // Instantiate context for verification
+        this.sdJwtVerificationContext = new SdJwtVerificationContext(
+                this.issuerSignedJWT,
+                this.disclosures
+        );
     }
 
     private Optional<String> sdJwtString = Optional.empty();
@@ -198,14 +206,21 @@ public class SdJwt {
     /**
      * Verifies SD-JWT as to whether the Issuer-signed JWT's signature and disclosures are valid.
      *
-     * @param verificationOpts Options to parameterize the Issuer-Signed JWT verification. A verifier
+     * @param issuerVerifyingKeys Verifying keys for validating the Issuer-signed JWT. The caller
-     *                         must be specified for validating the Issuer-signed JWT. The caller
+     *                            is responsible for establishing trust in that the keys belong
-     *                         is responsible for establishing trust in that associated public keys
+     *                            to the intended issuer.
-     *                         belong to the intended issuer.
+     * @param verificationOpts    Options to parameterize the Issuer-Signed JWT verification.
      * @throws VerificationException if verification failed
      */
-    public void verify(IssuerSignedJwtVerificationOpts verificationOpts) throws VerificationException {
+    public void verify(
-        new SdJwtVerificationContext(issuerSignedJWT, disclosures).verifyIssuance(verificationOpts);
+            List<SignatureVerifierContext> issuerVerifyingKeys,
+            IssuerSignedJwtVerificationOpts verificationOpts
+    ) throws VerificationException {
+        sdJwtVerificationContext.verifyIssuance(
+                issuerVerifyingKeys,
+                verificationOpts,
+                null
+        );
     }
 
     // builder for SdJwt

core/src/main/java/org/keycloak/sdjwt/SdJwtVerificationContext.java

@@ -20,22 +20,19 @@ package org.keycloak.sdjwt;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.jboss.logging.Logger;
 import org.keycloak.common.VerificationException;
-import org.keycloak.crypto.AsymmetricSignatureVerifierContext;
-import org.keycloak.crypto.ECDSASignatureVerifierContext;
-import org.keycloak.crypto.KeyType;
-import org.keycloak.crypto.KeyWrapper;
 import org.keycloak.crypto.SignatureVerifierContext;
-import org.keycloak.jose.jwk.JWK;
+import org.keycloak.sdjwt.consumer.PresentationRequirements;
 import org.keycloak.sdjwt.vp.KeyBindingJWT;
 import org.keycloak.sdjwt.vp.KeyBindingJwtVerificationOpts;
-import org.keycloak.util.JWKSUtils;
 
 import java.time.Instant;
 import java.util.AbstractMap;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashSet;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -48,6 +45,9 @@ import java.util.stream.Collectors;
  * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
  */
 public class SdJwtVerificationContext {
+
+    private static final Logger logger = Logger.getLogger(SdJwtVerificationContext.class.getName());
+
     private String sdJwtVpString;
 
     private final IssuerSignedJWT issuerSignedJwt;
@@ -79,7 +79,7 @@ public class SdJwtVerificationContext {
                 .map(disclosureString -> {
                     String digest = SdJwtUtils.hashAndBase64EncodeNoPad(
                             disclosureString.getBytes(), issuerSignedJwt.getSdHashAlg());
-                    return new AbstractMap.SimpleEntry<String,String>(digest, disclosureString);
+                    return new AbstractMap.SimpleEntry<>(digest, disclosureString);
                 })
                 .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
     }
@@ -92,17 +92,21 @@ public class SdJwtVerificationContext {
      * - all Disclosures are valid and correspond to a respective digest value in the Issuer-signed JWT
      * (directly in the payload or recursively included in the contents of other Disclosures).
      *
-     * @param issuerSignedJwtVerificationOpts Options to parameterize the Issuer-Signed JWT verification. A verifier
+     * @param issuerVerifyingKeys             Verifying keys for validating the Issuer-signed JWT. The caller
-     *                                        must be specified for validating the Issuer-signed JWT. The caller
+     *                                        is responsible for establishing trust in that the keys belong
-     *                                        is responsible for establishing trust in that associated public keys
+     *                                        to the intended issuer.
-     *                                        belong to the intended issuer.
+     * @param issuerSignedJwtVerificationOpts Options to parameterize the Issuer-Signed JWT verification.
+     * @param presentationRequirements        If set, the presentation requirements will be enforced upon fully
+     *                                        disclosing the Issuer-signed JWT during the verification.
      * @throws VerificationException if verification failed
      */
     public void verifyIssuance(
-            IssuerSignedJwtVerificationOpts issuerSignedJwtVerificationOpts
+            List<SignatureVerifierContext> issuerVerifyingKeys,
+            IssuerSignedJwtVerificationOpts issuerSignedJwtVerificationOpts,
+            PresentationRequirements presentationRequirements
     ) throws VerificationException {
         // Validate the Issuer-signed JWT.
-        validateIssuerSignedJwt(issuerSignedJwtVerificationOpts.getVerifier());
+        validateIssuerSignedJwt(issuerVerifyingKeys);
 
         // Validate disclosures.
         JsonNode disclosedPayload = validateDisclosuresDigests();
@@ -112,6 +116,11 @@ public class SdJwtVerificationContext {
         // SD-JWT payload, but there is no guarantee they would do so. Therefore, Verifiers cannot reliably
         // depend on that and need to operate as though security-critical claims might be selectively disclosable.
         validateIssuerSignedJwtTimeClaims(disclosedPayload, issuerSignedJwtVerificationOpts);
+
+        // Enforce presentation requirements.
+        if (presentationRequirements != null) {
+            presentationRequirements.checkIfSatisfiedBy(disclosedPayload);
+        }
     }
 
     /**
@@ -122,18 +131,22 @@ public class SdJwtVerificationContext {
      * to ensure that if Key Binding is required, the Key Binding JWT is signed by the Holder and valid.
      * </p>
      *
-     * @param issuerSignedJwtVerificationOpts Options to parameterize the Issuer-Signed JWT verification. A verifier
+     * @param issuerVerifyingKeys             Verifying keys for validating the Issuer-signed JWT. The caller
-     *                                        must be specified for validating the Issuer-signed JWT. The caller
+     *                                        is responsible for establishing trust in that the keys belong
-     *                                        is responsible for establishing trust in that associated public keys
+     *                                        to the intended issuer.
-     *                                        belong to the intended issuer.
+     * @param issuerSignedJwtVerificationOpts Options to parameterize the Issuer-Signed JWT verification.
      * @param keyBindingJwtVerificationOpts   Options to parameterize the Key Binding JWT verification.
      *                                        Must, among others, specify the Verifier's policy whether
      *                                        to check Key Binding.
+     * @param presentationRequirements        If set, the presentation requirements will be enforced upon fully
+     *                                        disclosing the Issuer-signed JWT during the verification.
      * @throws VerificationException if verification failed
      */
     public void verifyPresentation(
+            List<SignatureVerifierContext> issuerVerifyingKeys,
             IssuerSignedJwtVerificationOpts issuerSignedJwtVerificationOpts,
-            KeyBindingJwtVerificationOpts keyBindingJwtVerificationOpts
+            KeyBindingJwtVerificationOpts keyBindingJwtVerificationOpts,
+            PresentationRequirements presentationRequirements
     ) throws VerificationException {
         // If Key Binding is required and a Key Binding JWT is not provided,
         // the Verifier MUST reject the Presentation.
@@ -142,7 +155,7 @@ public class SdJwtVerificationContext {
         }
 
         // Upon receiving a Presentation, in addition to the checks in {@link #verifyIssuance}...
-        verifyIssuance(issuerSignedJwtVerificationOpts);
+        verifyIssuance(issuerVerifyingKeys, issuerSignedJwtVerificationOpts, presentationRequirements);
 
         // Validate Key Binding JWT if required
         if (keyBindingJwtVerificationOpts.isKeyBindingRequired()) {
@@ -158,19 +171,33 @@ public class SdJwtVerificationContext {
      * - the Issuer-signed JWT is valid, i.e., it is signed by the Issuer and the signature is valid
      * </p>
      *
+     * @param verifiers Verifying keys for validating the Issuer-signed JWT.
      * @throws VerificationException if verification failed
      */
-    private void validateIssuerSignedJwt(SignatureVerifierContext verifier) throws VerificationException {
+    private void validateIssuerSignedJwt(
+            List<SignatureVerifierContext> verifiers
+    ) throws VerificationException {
         // Check that the _sd_alg claim value is understood and the hash algorithm is deemed secure
         issuerSignedJwt.verifySdHashAlgorithm();
 
         // Validate the signature over the Issuer-signed JWT
+        Iterator<SignatureVerifierContext> iterator = verifiers.iterator();
+        while (iterator.hasNext()) {
             try {
+                SignatureVerifierContext verifier = iterator.next();
                 issuerSignedJwt.verifySignature(verifier);
+                return;
             } catch (VerificationException e) {
-            throw new VerificationException("Invalid Issuer-Signed JWT", e);
+                logger.debugf(e, "Issuer-signed JWT's signature verification failed against one potential verifying key");
+                if (iterator.hasNext()) {
+                    logger.debugf("Retrying Issuer-signed JWT's signature verification with next potential verifying key");
                 }
             }
+        }
+
+        // No potential verifier could verify the JWT's signature
+        throw new VerificationException("Invalid Issuer-Signed JWT: Signature could not be verified");
+    }
 
     /**
      * Validate Key Binding JWT
@@ -241,51 +268,12 @@ public class SdJwtVerificationContext {
             throw new UnsupportedOperationException("Only cnf/jwk claim supported");
         }
 
-        // Parse JWK
+        // Convert JWK
-        KeyWrapper keyWrapper;
         try {
-            JWK jwk = SdJwtUtils.mapper.convertValue(cnfJwk, JWK.class);
+            return JwkParsingUtils.convertJwkNodeToVerifierContext(cnfJwk);
-            keyWrapper = JWKSUtils.getKeyWrapper(jwk);
-            Objects.requireNonNull(keyWrapper);
         } catch (Exception e) {
-            throw new VerificationException("Malformed or unsupported cnf/jwk claim");
+            throw new VerificationException("Could not process cnf/jwk", e);
         }
-
-        // Build verifier
-
-        // KeyType.EC
-        if (keyWrapper.getType().equals(KeyType.EC)) {
-            if (keyWrapper.getAlgorithm() == null) {
-                Objects.requireNonNull(keyWrapper.getCurve());
-
-                String alg = null;
-                switch (keyWrapper.getCurve()) {
-                    case "P-256":
-                        alg = "ES256";
-                        break;
-                    case "P-384":
-                        alg = "ES384";
-                        break;
-                    case "P-521":
-                        alg = "ES512";
-                        break;
-                }
-
-                keyWrapper.setAlgorithm(alg);
-            }
-
-            return new ECDSASignatureVerifierContext(keyWrapper);
-        }
-
-        // KeyType.RSA
-        if (keyWrapper.getType().equals(KeyType.RSA)) {
-            return new AsymmetricSignatureVerifierContext(keyWrapper);
-        }
-
-        // KeyType is not supported
-        // This is unreachable as of now given that `JWKSUtils.getKeyWrapper` will fail
-        // on JWKs with key type not equal to EC or RSA.
-        throw new VerificationException("cnf/jwk alg is unsupported or deemed not secure");
     }
 
     /**
@@ -586,10 +574,10 @@ public class SdJwtVerificationContext {
 
         // If the claim name is _sd or ..., the SD-JWT MUST be rejected.
 
-        List<String> denylist = Arrays.asList(new String[]{
+        List<String> denylist = Arrays.asList(
                 IssuerSignedJWT.CLAIM_NAME_SELECTIVE_DISCLOSURE,
                 UndisclosedArrayElement.SD_CLAIM_NAME
-        });
+        );
 
         String claimName = arrayNode.get(1).asText();
         if (denylist.contains(claimName)) {

core/src/main/java/org/keycloak/sdjwt/consumer/HttpDataFetcher.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import com.fasterxml.jackson.databind.JsonNode;
+
+import java.io.IOException;
+
+/**
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public interface HttpDataFetcher {
+
+    /**
+     * Performs an HTTP GET at the URI and parses the response as JSON
+     * @throws IOException if I/O error or HTTP status not OK (200)
+     */
+    JsonNode fetchJsonData(String uri) throws IOException;
+}

core/src/main/java/org/keycloak/sdjwt/consumer/JwtVcMetadata.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.keycloak.jose.jwk.JSONWebKeySet;
+
+/**
+ * POJO for JWT VC Metadata
+ *
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ * @see <a href="https://datatracker.ietf.org/doc/html/draft-ietf-oauth-sd-jwt-vc-05#name-jwt-vc-issuer-metadata-resp">
+ * JWT VC Issuer Metadata Response
+ * </a>
+ */
+public class JwtVcMetadata {
+
+    @JsonProperty("issuer")
+    private String issuer;
+
+    @JsonProperty("jwks_uri")
+    private String jwksUri;
+
+    @JsonProperty("jwks")
+    private JSONWebKeySet jwks;
+
+    public String getIssuer() {
+        return issuer;
+    }
+
+    public void setIssuer(String issuer) {
+        this.issuer = issuer;
+    }
+
+    public String getJwksUri() {
+        return jwksUri;
+    }
+
+    public void setJwksUri(String jwksUri) {
+        this.jwksUri = jwksUri;
+    }
+
+    public JSONWebKeySet getJwks() {
+        return jwks;
+    }
+
+    public void setJwks(JSONWebKeySet jwks) {
+        this.jwks = jwks;
+    }
+}

core/src/main/java/org/keycloak/sdjwt/consumer/JwtVcMetadataTrustedSdJwtIssuer.java

@@ -0,0 +1,228 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import org.keycloak.common.VerificationException;
+import org.keycloak.crypto.SignatureVerifierContext;
+import org.keycloak.jose.jwk.JSONWebKeySet;
+import org.keycloak.jose.jwk.JWK;
+import org.keycloak.sdjwt.IssuerSignedJWT;
+import org.keycloak.sdjwt.JwkParsingUtils;
+import org.keycloak.sdjwt.SdJws;
+import org.keycloak.sdjwt.SdJwtUtils;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+/**
+ * A trusted Issuer for running SD-JWT VP verification.
+ *
+ * <p>
+ * This implementation targets issuers exposing verifying keys on a normalized JWT VC Issuer metadata endpoint.
+ * </p>
+ *
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ * @see <a href="https://datatracker.ietf.org/doc/html/draft-ietf-oauth-sd-jwt-vc-05#name-issuer-signed-jwt-verificat">
+ * JWT VC Issuer Metadata
+ * </a>
+ */
+public class JwtVcMetadataTrustedSdJwtIssuer implements TrustedSdJwtIssuer {
+
+    private static final String JWT_VC_ISSUER_END_POINT = "/.well-known/jwt-vc-issuer";
+
+    private final Pattern issuerUriPattern;
+    private final HttpDataFetcher httpDataFetcher;
+
+    /**
+     * @param issuerUri a trusted issuer URI
+     */
+    public JwtVcMetadataTrustedSdJwtIssuer(String issuerUri, HttpDataFetcher httpDataFetcher) {
+        try {
+            validateHttpsIssuerUri(issuerUri);
+        } catch (VerificationException e) {
+            throw new IllegalArgumentException(e);
+        }
+
+        // Build a Regex pattern to only match the argument URI
+        this.issuerUriPattern = Pattern.compile(Pattern.quote(issuerUri));
+
+        // Assign HttpDataFetcher implementation
+        this.httpDataFetcher = httpDataFetcher;
+    }
+
+    /**
+     * @param issuerUriPattern a regex pattern for trusted issuer URIs
+     */
+    public JwtVcMetadataTrustedSdJwtIssuer(Pattern issuerUriPattern, HttpDataFetcher httpDataFetcher) {
+        this.issuerUriPattern = issuerUriPattern;
+        this.httpDataFetcher = httpDataFetcher;
+    }
+
+    @Override
+    public List<SignatureVerifierContext> resolveIssuerVerifyingKeys(IssuerSignedJWT issuerSignedJWT)
+            throws VerificationException {
+        // Read iss (claim) and kid (header)
+        String iss = Optional.ofNullable(issuerSignedJWT.getPayload().get(SdJws.CLAIM_NAME_ISSUER))
+                .map(JsonNode::asText)
+                .orElse("");
+        String kid = issuerSignedJWT.getHeader().getKeyId();
+
+        // Match the read iss claim against the trusted pattern
+        Matcher matcher = issuerUriPattern.matcher(iss);
+        if (!matcher.matches()) {
+            throw new VerificationException(String.format(
+                    "Unexpected Issuer URI claim. Expected=/%s/, Got=%s",
+                    issuerUriPattern.pattern(), iss
+            ));
+        }
+
+        // As per specs, only HTTPS URIs are supported
+        validateHttpsIssuerUri(iss);
+
+        // Fetch exposed JWKs
+        List<JWK> jwks = fetchIssuerMetadataJwks(iss);
+        if (jwks.isEmpty()) {
+            throw new VerificationException(
+                    String.format("Issuer JWKs were unexpectedly resolved to an empty list. Issuer URI: %s", iss)
+            );
+        }
+
+        // If kid specified, only consider the (single) matching key
+        if (kid != null) {
+            List<JWK> matchingJwks = jwks.stream()
+                    .filter(jwk -> {
+                        String jwkKid = jwk.getKeyId();
+                        return jwkKid != null && jwkKid.equals(kid);
+                    })
+                    .collect(Collectors.toList());
+
+            if (matchingJwks.isEmpty()) {
+                throw new VerificationException(
+                        String.format("No published JWK was found to match kid: %s", kid)
+                );
+            }
+
+            if (matchingJwks.size() > 1) {
+                throw new VerificationException(
+                        String.format("Cannot choose between multiple exposed JWKs with same kid: %s", kid)
+                );
+            }
+
+            jwks = Collections.singletonList(matchingJwks.get(0));
+        }
+
+        // Build SignatureVerifierContext's
+        List<SignatureVerifierContext> verifiers = new ArrayList<>();
+        for (JWK jwk : jwks) {
+            try {
+                verifiers.add(JwkParsingUtils.convertJwkToVerifierContext(jwk));
+            } catch (Exception e) {
+                throw new VerificationException("A potential JWK was retrieved but found invalid", e);
+            }
+        }
+
+        return verifiers;
+    }
+
+    private void validateHttpsIssuerUri(String issuerUri) throws VerificationException {
+        if (!issuerUri.startsWith("https://")) {
+            throw new VerificationException(
+                    "HTTPS URI required to retrieve JWT VC Issuer Metadata"
+            );
+        }
+    }
+
+    private List<JWK> fetchIssuerMetadataJwks(String issuerUri) throws VerificationException {
+        // Build full URL to JWT VC metadata endpoint
+
+        issuerUri = normalizeUri(issuerUri);
+        String jwtVcIssuerUri = issuerUri
+                .concat(JWT_VC_ISSUER_END_POINT); // Append well-known path
+
+        // Fetch and parse metadata
+
+        JwtVcMetadata issuerMetadata;
+        JsonNode issuerMetadataNode = fetchData(jwtVcIssuerUri);
+
+        try {
+            issuerMetadata = SdJwtUtils.mapper.treeToValue(issuerMetadataNode, JwtVcMetadata.class);
+        } catch (JsonProcessingException e) {
+            throw new VerificationException("Failed to parse exposed JWT VC Metadata", e);
+        }
+
+        // Validate metadata
+
+        String exposedIssuerUri = normalizeUri(issuerMetadata.getIssuer());
+
+        if (!issuerUri.equals(exposedIssuerUri)) {
+            throw new VerificationException(String.format(
+                    "Unexpected metadata's issuer. Expected=%s, Got=%s",
+                    issuerUri, exposedIssuerUri
+            ));
+        }
+
+        // Extract exposed JWKS (including dereferencing if necessary)
+
+        String jwksUri = issuerMetadata.getJwksUri();
+        JSONWebKeySet jwks = issuerMetadata.getJwks();
+
+        if (jwks == null && jwksUri != null) {
+            // Dereference JWKS URI
+            JsonNode jwksNode = fetchData(jwksUri);
+
+            // Parse fetched JWKS
+            try {
+                jwks = SdJwtUtils.mapper.treeToValue(jwksNode, JSONWebKeySet.class);
+            } catch (JsonProcessingException e) {
+                throw new VerificationException("Failed to parse exposed JWKS", e);
+            }
+        }
+
+        if (jwks == null || jwks.getKeys() == null) {
+            throw new VerificationException(
+                    String.format("Could not resolve issuer JWKs with URI: %s", issuerUri));
+        }
+
+        return Arrays.asList(jwks.getKeys());
+    }
+
+    private JsonNode fetchData(String uri) throws VerificationException {
+        try {
+            return Objects.requireNonNull(httpDataFetcher.fetchJsonData(uri));
+        } catch (Exception exception) {
+            throw new VerificationException(
+                    String.format("Could not fetch data from URI: %s", uri),
+                    exception
+            );
+        }
+    }
+
+    private String normalizeUri(String uri) {
+        // Remove any trailing slash
+        return uri.replaceAll("/$", "");
+    }
+}

core/src/main/java/org/keycloak/sdjwt/consumer/PresentationRequirements.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.keycloak.common.VerificationException;
+
+/**
+ * Presentation requirements to constrain the kind of credential expected.
+ *
+ * <p>
+ * This mirrors the idea of the expressive
+ * <a href="https://identity.foundation/presentation-exchange/#presentation-definition">DIF Presentation Definition</a>,
+ * while enabling simpler alternatives.
+ * </p>
+ *
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public interface PresentationRequirements {
+
+    /**
+     * Ensures that the configured requirements are satisfied by the presentation.
+     *
+     * @param disclosedPayload The fully disclosed Issuer-signed JWT of the presented token.
+     * @throws VerificationException if the configured requirements are not satisfied.
+     */
+    void checkIfSatisfiedBy(JsonNode disclosedPayload) throws VerificationException;
+}

core/src/main/java/org/keycloak/sdjwt/consumer/SdJwtPresentationConsumer.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import org.keycloak.common.VerificationException;
+import org.keycloak.crypto.SignatureVerifierContext;
+import org.keycloak.sdjwt.IssuerSignedJWT;
+import org.keycloak.sdjwt.IssuerSignedJwtVerificationOpts;
+import org.keycloak.sdjwt.vp.KeyBindingJwtVerificationOpts;
+import org.keycloak.sdjwt.vp.SdJwtVP;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * A component for consuming (verifying) SD-JWT presentations.
+ *
+ * <p>
+ * The purpose is to streamline SD-JWT VP verification beyond signature
+ * and disclosure checks of {@link org.keycloak.sdjwt.SdJwtVerificationContext}
+ * </p>
+ *
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public class SdJwtPresentationConsumer {
+
+    /**
+     * Verify SD-JWT presentation against specific requirements.
+     *
+     * @param sdJwtVP                         the presentation to verify
+     * @param presentationRequirements        the requirements on presented claims
+     * @param trustedSdJwtIssuers             trusted issuers for the verification
+     * @param issuerSignedJwtVerificationOpts policy for Issuer-signed JWT verification
+     * @param keyBindingJwtVerificationOpts   policy for Key-binding JWT verification
+     * @throws VerificationException if the verification fails for some reason
+     */
+    public void verifySdJwtPresentation(
+            SdJwtVP sdJwtVP,
+            PresentationRequirements presentationRequirements,
+            List<TrustedSdJwtIssuer> trustedSdJwtIssuers,
+            IssuerSignedJwtVerificationOpts issuerSignedJwtVerificationOpts,
+            KeyBindingJwtVerificationOpts keyBindingJwtVerificationOpts
+    ) throws VerificationException {
+        // Retrieve verifying keys for Issuer-signed JWT
+        IssuerSignedJWT issuerSignedJWT = sdJwtVP.getIssuerSignedJWT();
+        List<SignatureVerifierContext> issuerVerifyingKeys = new ArrayList<>();
+        for (TrustedSdJwtIssuer trustedSdJwtIssuer : trustedSdJwtIssuers) {
+            List<SignatureVerifierContext> keys = trustedSdJwtIssuer
+                    .resolveIssuerVerifyingKeys(issuerSignedJWT);
+            issuerVerifyingKeys.addAll(keys);
+        }
+
+        // Verify the SD-JWT token cryptographically
+        // Pass presentation requirements to enforce that the presented token meets them
+        sdJwtVP.getSdJwtVerificationContext()
+                .verifyPresentation(
+                        issuerVerifyingKeys,
+                        issuerSignedJwtVerificationOpts,
+                        keyBindingJwtVerificationOpts,
+                        presentationRequirements
+                );
+    }
+}

core/src/main/java/org/keycloak/sdjwt/consumer/SimplePresentationDefinition.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.keycloak.common.VerificationException;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * A simple presentation definition of the kind of credential expected.
+ *
+ * <p>
+ * The credential's type and required claims are configured using regex patterns.
+ * The values of these fields are JSON-ified prior to matching the regex pattern.
+ * </p>
+ *
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public class SimplePresentationDefinition implements PresentationRequirements {
+
+    private final Map<String, Pattern> requirements;
+
+    public SimplePresentationDefinition(Map<String, Pattern> requirements) {
+        this.requirements = requirements;
+    }
+
+    /**
+     * Checks if the provided JSON payload satisfies all required field patterns.
+     *
+     * <p>
+     * For each required field, the corresponding JSON field value in the disclosed Issuer-signed JWT's payload
+     * is matched against the associated regex pattern. If any required field is missing or does not match the
+     * pattern, a {@link VerificationException} is thrown.
+     * </p>
+     *
+     * @param disclosedPayload The fully disclosed Issuer-signed JWT of the presented token.
+     * @throws VerificationException If any required field is missing or fails the pattern check.
+     */
+    @Override
+    public void checkIfSatisfiedBy(JsonNode disclosedPayload) throws VerificationException {
+        for (Map.Entry<String, Pattern> requirement : requirements.entrySet()) {
+            String field = requirement.getKey();
+            Pattern pattern = requirement.getValue();
+
+            // Retrieve the value of the required field from the payload
+            JsonNode presented = disclosedPayload.get(field);
+
+            // Check if the required field is present in the payload
+            if (presented == null || presented.isNull()) {
+                throw new VerificationException(
+                        String.format("A required field was not presented: `%s`", field)
+                );
+            }
+
+            // Extract the JSON representation of the field's value
+            String json = presented.toString();
+
+            // Match the field value against the configured regex pattern
+            Matcher matcher = pattern.matcher(json);
+            if (!matcher.matches()) {
+                throw new VerificationException(String.format(
+                        "Pattern matching failed for required field: `%s`. Expected pattern: /%s/, but got: %s",
+                        field, pattern.pattern(), json
+                ));
+            }
+        }
+    }
+
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public static class Builder {
+        private final Map<String, Pattern> requirements = new HashMap<>();
+
+        public Builder addClaimRequirement(String field, String regexPattern) {
+            this.requirements.put(field, Pattern.compile(regexPattern));
+            return this;
+        }
+
+        public SimplePresentationDefinition build() {
+            return new SimplePresentationDefinition(requirements);
+        }
+    }
+}

core/src/main/java/org/keycloak/sdjwt/consumer/StaticTrustedSdJwtIssuer.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import org.keycloak.crypto.SignatureVerifierContext;
+import org.keycloak.sdjwt.IssuerSignedJWT;
+
+import java.util.List;
+
+/**
+ * A trusted Issuer for running SD-JWT VP verification.
+ *
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public class StaticTrustedSdJwtIssuer implements TrustedSdJwtIssuer {
+
+    private final List<SignatureVerifierContext> signatureVerifierContexts;
+
+    public StaticTrustedSdJwtIssuer(List<SignatureVerifierContext> signatureVerifierContexts) {
+        this.signatureVerifierContexts = signatureVerifierContexts;
+    }
+
+    @Override
+    public List<SignatureVerifierContext> resolveIssuerVerifyingKeys(IssuerSignedJWT issuerSignedJWT) {
+        return signatureVerifierContexts;
+    }
+}

core/src/main/java/org/keycloak/sdjwt/consumer/TrustedSdJwtIssuer.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import org.keycloak.common.VerificationException;
+import org.keycloak.crypto.SignatureVerifierContext;
+import org.keycloak.sdjwt.IssuerSignedJWT;
+
+import java.util.List;
+
+/**
+ * A trusted Issuer for running SD-JWT VP verification.
+ *
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public interface TrustedSdJwtIssuer {
+
+    /**
+     * Resolves potential verifying keys to validate the Issuer-signed JWT.
+     * The method ensures that the resolved public keys can be trusted.
+     *
+     * @param issuerSignedJWT The Issuer-signed JWT to validate.
+     * @return trusted verifying keys
+     * @throws VerificationException if no trustworthy verifying key could be resolved
+     */
+    List<SignatureVerifierContext> resolveIssuerVerifyingKeys(IssuerSignedJWT issuerSignedJWT)
+            throws VerificationException;
+}

core/src/main/java/org/keycloak/sdjwt/vp/SdJwtVP.java

@@ -30,6 +30,7 @@ import java.util.Set;
 import org.keycloak.common.VerificationException;
 import org.keycloak.common.util.Base64Url;
 import org.keycloak.crypto.SignatureSignerContext;
+import org.keycloak.crypto.SignatureVerifierContext;
 import org.keycloak.sdjwt.IssuerSignedJWT;
 import org.keycloak.sdjwt.IssuerSignedJwtVerificationOpts;
 import org.keycloak.sdjwt.SdJwt;
@@ -54,6 +55,7 @@ public class SdJwtVP {
     private final String hashAlgorithm;
 
     private final Optional<KeyBindingJWT> keyBindingJWT;
+    private final SdJwtVerificationContext sdJwtVerificationContext;
 
     public Map<String, ArrayNode> getClaims() {
         return claims;
@@ -98,6 +100,14 @@ public class SdJwtVP {
         this.recursiveDigests = Collections.unmodifiableMap(recursiveDigests);
         this.ghostDigests = Collections.unmodifiableList(ghostDigests);
         this.keyBindingJWT = keyBindingJWT;
+
+        // Instantiate context for verification
+        this.sdJwtVerificationContext = new SdJwtVerificationContext(
+                this.sdJwtVpString,
+                this.issuerSignedJWT,
+                this.disclosures,
+                this.keyBindingJWT.orElse(null)
+        );
     }
 
     public static SdJwtVP of(String sdJwtString) {
@@ -217,21 +227,33 @@ public class SdJwtVP {
     /**
      * Verifies SD-JWT presentation.
      *
-     * @param issuerSignedJwtVerificationOpts Options to parameterize the verification. A verifier must be specified
+     * @param issuerVerifyingKeys             Verifying keys for validating the Issuer-signed JWT. The caller
-     *                                        for validating the Issuer-signed JWT. The caller is responsible for
+     *                                        is responsible for establishing trust in that the keys belong
-     *                                        establishing trust in that associated public keys belong to the
+     *                                        to the intended issuer.
-     *                                        intended issuer.
+     * @param issuerSignedJwtVerificationOpts Options to parameterize the Issuer-Signed JWT verification.
      * @param keyBindingJwtVerificationOpts   Options to parameterize the Key Binding JWT verification.
      *                                        Must, among others, specify the Verifier's policy whether
      *                                        to check Key Binding.
      * @throws VerificationException if verification failed
      */
     public void verify(
+            List<SignatureVerifierContext> issuerVerifyingKeys,
             IssuerSignedJwtVerificationOpts issuerSignedJwtVerificationOpts,
             KeyBindingJwtVerificationOpts keyBindingJwtVerificationOpts
     ) throws VerificationException {
-        new SdJwtVerificationContext(sdJwtVpString, issuerSignedJWT, disclosures, keyBindingJWT.orElse(null))
+        sdJwtVerificationContext.verifyPresentation(
-                .verifyPresentation(issuerSignedJwtVerificationOpts, keyBindingJwtVerificationOpts);
+                issuerVerifyingKeys,
+                issuerSignedJwtVerificationOpts,
+                keyBindingJwtVerificationOpts,
+                null
+        );
+    }
+
+    /**
+     * Retrieve verification context for advanced scenarios.
+     */
+    public SdJwtVerificationContext getSdJwtVerificationContext() {
+        return sdJwtVerificationContext;
     }
 
     // Recursively searches the node with the given value.

core/src/test/java/org/keycloak/sdjwt/SdJwtVerificationTest.java

@@ -23,14 +23,16 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.junit.ClassRule;
 import org.junit.Test;
 import org.keycloak.common.VerificationException;
+import org.keycloak.crypto.SignatureVerifierContext;
 import org.keycloak.rule.CryptoInitRule;
 
 import java.time.Instant;
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.List;
+
 import org.keycloak.crypto.SignatureSignerContext;
 
-import static org.hamcrest.CoreMatchers.endsWith;
 import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.Assert.assertEquals;
@@ -57,38 +59,61 @@ public abstract class SdJwtVerificationTest {
 
     @Test
     public void testSdJwtVerification_FlatSdJwt() throws VerificationException {
-        for (String hashAlg : Arrays.asList(new String[]{"sha-256", "sha-384", "sha-512"})) {
+        for (String hashAlg : Arrays.asList("sha-256", "sha-384", "sha-512")) {
             SdJwt sdJwt = exampleFlatSdJwtV1()
                     .withHashAlgorithm(hashAlg)
                     .build();
 
-            sdJwt.verify(defaultIssuerSignedJwtVerificationOpts().build());
+            sdJwt.verify(
+                    defaultIssuerVerifyingKeys(),
+                    defaultIssuerSignedJwtVerificationOpts().build()
+            );
         }
     }
 
     @Test
     public void testSdJwtVerification_EnforceIdempotence() throws VerificationException {
         SdJwt sdJwt = exampleFlatSdJwtV1().build();
-            sdJwt.verify(defaultIssuerSignedJwtVerificationOpts().build());
+
-            sdJwt.verify(defaultIssuerSignedJwtVerificationOpts().build());
+        sdJwt.verify(
+                defaultIssuerVerifyingKeys(),
+                defaultIssuerSignedJwtVerificationOpts().build()
+        );
+
+        sdJwt.verify(
+                defaultIssuerVerifyingKeys(),
+                defaultIssuerSignedJwtVerificationOpts().build()
+        );
     }
 
     @Test
     public void testSdJwtVerification_SdJwtWithUndisclosedNestedFields() throws VerificationException {
         SdJwt sdJwt = exampleSdJwtWithUndisclosedNestedFieldsV1().build();
-        sdJwt.verify(defaultIssuerSignedJwtVerificationOpts().build());
+
+        sdJwt.verify(
+                defaultIssuerVerifyingKeys(),
+                defaultIssuerSignedJwtVerificationOpts().build()
+        );
     }
 
     @Test
     public void testSdJwtVerification_SdJwtWithUndisclosedArrayElements() throws Exception {
         SdJwt sdJwt = exampleSdJwtWithUndisclosedArrayElementsV1().build();
-        sdJwt.verify(defaultIssuerSignedJwtVerificationOpts().build());
+
+        sdJwt.verify(
+                defaultIssuerVerifyingKeys(),
+                defaultIssuerSignedJwtVerificationOpts().build()
+        );
     }
 
     @Test
     public void testSdJwtVerification_RecursiveSdJwt() throws Exception {
         SdJwt sdJwt = exampleRecursiveSdJwtV1().build();
-        sdJwt.verify(defaultIssuerSignedJwtVerificationOpts().build());
+
+        sdJwt.verify(
+                defaultIssuerVerifyingKeys(),
+                defaultIssuerSignedJwtVerificationOpts().build()
+        );
     }
 
     @Test
@@ -99,7 +124,10 @@ public abstract class SdJwtVerificationTest {
 
         VerificationException exception = assertThrows(
                 VerificationException.class,
-                () -> sdJwt.verify(defaultIssuerSignedJwtVerificationOpts().build())
+                () -> sdJwt.verify(
+                        defaultIssuerVerifyingKeys(),
+                        defaultIssuerSignedJwtVerificationOpts().build()
+                )
         );
 
         assertEquals("Unexpected or insecure hash algorithm: sha-224", exception.getMessage());
@@ -110,13 +138,13 @@ public abstract class SdJwtVerificationTest {
         SdJwt sdJwt = exampleFlatSdJwtV1().build();
         VerificationException exception = assertThrows(
                 VerificationException.class,
-                () -> sdJwt.verify(defaultIssuerSignedJwtVerificationOpts()
+                () -> sdJwt.verify(
-                        .withVerifier(testSettings.holderVerifierContext) // wrong verifier
+                        Collections.singletonList(testSettings.holderVerifierContext), // wrong verifier
-                        .build())
+                        defaultIssuerSignedJwtVerificationOpts().build()
+                )
         );
 
-        assertThat(exception.getMessage(), is("Invalid Issuer-Signed JWT"));
+        assertThat(exception.getMessage(), is("Invalid Issuer-Signed JWT: Signature could not be verified"));
-        assertThat(exception.getCause().getMessage(), endsWith("Invalid jws signature"));
     }
 
     @Test
@@ -135,12 +163,15 @@ public abstract class SdJwtVerificationTest {
                 .withUndisclosedClaim("exp", "eluV5Og3gSNII8EYnsxA_A")
                 .build()).build();
 
-        for (SdJwt sdJwt : Arrays.asList(new SdJwt[]{sdJwtV1, sdJwtV2})) {
+        for (SdJwt sdJwt : Arrays.asList(sdJwtV1, sdJwtV2)) {
             VerificationException exception = assertThrows(
                     VerificationException.class,
-                    () -> sdJwt.verify(defaultIssuerSignedJwtVerificationOpts()
+                    () -> sdJwt.verify(
+                            defaultIssuerVerifyingKeys(),
+                            defaultIssuerSignedJwtVerificationOpts()
                                     .withValidateExpirationClaim(true)
-                            .build())
+                                    .build()
+                    )
             );
 
             assertEquals("Issuer-Signed JWT: Invalid `exp` claim", exception.getMessage());
@@ -166,12 +197,15 @@ public abstract class SdJwtVerificationTest {
         SdJwt sdJwtV1 = exampleFlatSdJwtV2(claimSet1, disclosureSpec).build();
         SdJwt sdJwtV2 = exampleFlatSdJwtV2(claimSet2, disclosureSpec).build();
 
-        for (SdJwt sdJwt : Arrays.asList(new SdJwt[]{sdJwtV1, sdJwtV2})) {
+        for (SdJwt sdJwt : Arrays.asList(sdJwtV1, sdJwtV2)) {
             VerificationException exception = assertThrows(
                     VerificationException.class,
-                    () -> sdJwt.verify(defaultIssuerSignedJwtVerificationOpts()
+                    () -> sdJwt.verify(
+                            defaultIssuerVerifyingKeys(),
+                            defaultIssuerSignedJwtVerificationOpts()
                                     .withValidateExpirationClaim(true)
-                            .build())
+                                    .build()
+                    )
             );
 
             assertEquals("Issuer-Signed JWT: Invalid `exp` claim", exception.getMessage());
@@ -195,12 +229,15 @@ public abstract class SdJwtVerificationTest {
                 .withUndisclosedClaim("iat", "eluV5Og3gSNII8EYnsxA_A")
                 .build()).build();
 
-        for (SdJwt sdJwt : Arrays.asList(new SdJwt[]{sdJwtV1, sdJwtV2})) {
+        for (SdJwt sdJwt : Arrays.asList(sdJwtV1, sdJwtV2)) {
             VerificationException exception = assertThrows(
                     VerificationException.class,
-                    () -> sdJwt.verify(defaultIssuerSignedJwtVerificationOpts()
+                    () -> sdJwt.verify(
+                            defaultIssuerVerifyingKeys(),
+                            defaultIssuerSignedJwtVerificationOpts()
                                     .withValidateIssuedAtClaim(true)
-                            .build())
+                                    .build()
+                    )
             );
 
             assertEquals("Issuer-Signed JWT: Invalid `iat` claim", exception.getMessage());
@@ -224,12 +261,15 @@ public abstract class SdJwtVerificationTest {
                 .withUndisclosedClaim("iat", "eluV5Og3gSNII8EYnsxA_A")
                 .build()).build();
 
-        for (SdJwt sdJwt : Arrays.asList(new SdJwt[]{sdJwtV1, sdJwtV2})) {
+        for (SdJwt sdJwt : Arrays.asList(sdJwtV1, sdJwtV2)) {
             VerificationException exception = assertThrows(
                     VerificationException.class,
-                    () -> sdJwt.verify(defaultIssuerSignedJwtVerificationOpts()
+                    () -> sdJwt.verify(
+                            defaultIssuerVerifyingKeys(),
+                            defaultIssuerSignedJwtVerificationOpts()
                                     .withValidateNotBeforeClaim(true)
-                            .build())
+                                    .build()
+                    )
             );
 
             assertEquals("Issuer-Signed JWT: Invalid `nbf` claim", exception.getMessage());
@@ -247,8 +287,10 @@ public abstract class SdJwtVerificationTest {
 
         VerificationException exception = assertThrows(
                 VerificationException.class,
-                () -> sdJwt.verify(defaultIssuerSignedJwtVerificationOpts()
+                () -> sdJwt.verify(
-                        .build())
+                        defaultIssuerVerifyingKeys(),
+                        defaultIssuerSignedJwtVerificationOpts().build()
+                )
         );
 
         assertEquals("Unexpected non-string element inside _sd array: 123", exception.getMessage());
@@ -256,7 +298,7 @@ public abstract class SdJwtVerificationTest {
 
     @Test
     public void sdJwtVerificationShouldFail_IfForbiddenClaimNames() {
-        for (String forbiddenClaimName : Arrays.asList(new String[]{"_sd", "..."})) {
+        for (String forbiddenClaimName : Arrays.asList("_sd", "...")) {
             ObjectNode claimSet = mapper.createObjectNode();
             claimSet.put(forbiddenClaimName, "Value");
 
@@ -266,7 +308,10 @@ public abstract class SdJwtVerificationTest {
 
             VerificationException exception = assertThrows(
                     VerificationException.class,
-                    () -> sdJwt.verify(defaultIssuerSignedJwtVerificationOpts().build())
+                    () -> sdJwt.verify(
+                            defaultIssuerVerifyingKeys(),
+                            defaultIssuerSignedJwtVerificationOpts().build()
+                    )
             );
 
             assertEquals("Disclosure claim name must not be '_sd' or '...'", exception.getMessage());
@@ -286,7 +331,10 @@ public abstract class SdJwtVerificationTest {
 
         VerificationException exception = assertThrows(
                 VerificationException.class,
-                () -> sdJwt.verify(defaultIssuerSignedJwtVerificationOpts().build())
+                () -> sdJwt.verify(
+                        defaultIssuerVerifyingKeys(),
+                        defaultIssuerSignedJwtVerificationOpts().build()
+                )
         );
 
         assertTrue(exception.getMessage().startsWith("A digest was encountered more than once:"));
@@ -307,15 +355,21 @@ public abstract class SdJwtVerificationTest {
 
         VerificationException exception = assertThrows(
                 VerificationException.class,
-                () -> sdJwt.verify(defaultIssuerSignedJwtVerificationOpts().build())
+                () -> sdJwt.verify(
+                        defaultIssuerVerifyingKeys(),
+                        defaultIssuerSignedJwtVerificationOpts().build()
+                )
         );
 
         assertEquals("A salt value was reused: " + salt, exception.getMessage());
     }
 
+    private List<SignatureVerifierContext> defaultIssuerVerifyingKeys() {
+        return Collections.singletonList(testSettings.issuerVerifierContext);
+    }
+
     private IssuerSignedJwtVerificationOpts.Builder defaultIssuerSignedJwtVerificationOpts() {
         return IssuerSignedJwtVerificationOpts.builder()
-                .withVerifier(testSettings.issuerVerifierContext)
                 .withValidateIssuedAtClaim(false)
                 .withValidateExpirationClaim(false)
                 .withValidateNotBeforeClaim(false);

core/src/test/java/org/keycloak/sdjwt/consumer/JwtVcMetadataTrustedSdJwtIssuerTest.java

@@ -0,0 +1,419 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.keycloak.common.VerificationException;
+import org.keycloak.crypto.SignatureVerifierContext;
+import org.keycloak.rule.CryptoInitRule;
+import org.keycloak.sdjwt.IssuerSignedJWT;
+import org.keycloak.sdjwt.SdJws;
+import org.keycloak.sdjwt.SdJwtUtils;
+import org.keycloak.sdjwt.TestUtils;
+import org.keycloak.sdjwt.vp.SdJwtVP;
+
+import java.rmi.UnknownHostException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.regex.Pattern;
+
+import static org.hamcrest.CoreMatchers.endsWith;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public abstract class JwtVcMetadataTrustedSdJwtIssuerTest {
+
+    @ClassRule
+    public static CryptoInitRule cryptoInitRule = new CryptoInitRule();
+
+    @Test
+    public void shouldResolveIssuerVerifyingKeys() throws Exception {
+        String issuerUri = "https://issuer.example.com";
+        TrustedSdJwtIssuer trustedIssuer = new JwtVcMetadataTrustedSdJwtIssuer(
+                issuerUri, mockHttpDataFetcher());
+
+        IssuerSignedJWT issuerSignedJWT = exampleIssuerSignedJwt();
+        List<SignatureVerifierContext> keys = trustedIssuer
+                .resolveIssuerVerifyingKeys(issuerSignedJWT);
+
+        // There three keys exposed on the metadata endpoint.
+        assertEquals(3, keys.size());
+    }
+
+    @Test
+    public void shouldResolveKeys_WhenIssuerTrustedOnRegexPattern() throws Exception {
+        Pattern issuerUriRegex = Pattern.compile("https://.*\\.example\\.com");
+        TrustedSdJwtIssuer trustedIssuer = new JwtVcMetadataTrustedSdJwtIssuer(
+                issuerUriRegex, mockHttpDataFetcher());
+
+        IssuerSignedJWT issuerSignedJWT = exampleIssuerSignedJwt();
+        trustedIssuer.resolveIssuerVerifyingKeys(issuerSignedJWT);
+    }
+
+    @Test
+    public void shouldResolveKeys_WhenJwtSpecifiesKid() throws VerificationException, JsonProcessingException {
+        String issuerUri = "https://issuer.example.com";
+        TrustedSdJwtIssuer trustedIssuer = new JwtVcMetadataTrustedSdJwtIssuer(
+                issuerUri, mockHttpDataFetcher());
+
+        // This JWT specifies a key ID in its header
+        IssuerSignedJWT issuerSignedJWT = exampleIssuerSignedJwt("sdjwt/s20.1-sdjwt+kb--explicit-kid.txt");
+
+        // Act
+        List<SignatureVerifierContext> keys = trustedIssuer
+                .resolveIssuerVerifyingKeys(issuerSignedJWT);
+
+        // Despite three keys exposed on the metadata endpoint,
+        // only the key matching the JWT's kid is resolved.
+        assertEquals(1, keys.size());
+        assertEquals("doc-signer-05-25-2022", keys.get(0).getKid());
+    }
+
+    @Test
+    public void shouldRejectNonHttpsIssuerURIs() {
+        String issuerUri = "http://issuer.example.com"; // not https
+
+        IllegalArgumentException exception = assertThrows(IllegalArgumentException.class,
+                () -> new JwtVcMetadataTrustedSdJwtIssuer(issuerUri, mockHttpDataFetcher())
+        );
+
+        assertThat(exception.getMessage(), endsWith("HTTPS URI required to retrieve JWT VC Issuer Metadata"));
+    }
+
+    @Test
+    public void shouldRejectNonHttpsIssuerURIs_EvenIfIssuerBuiltWithRegexPattern() throws JsonProcessingException {
+        Pattern issuerUriRegex = Pattern.compile(".*\\.example\\.com");
+        TrustedSdJwtIssuer trustedIssuer = new JwtVcMetadataTrustedSdJwtIssuer(
+                issuerUriRegex, mockHttpDataFetcher());
+
+        String issuerUri = "http://issuer.example.com"; // not https
+        IssuerSignedJWT issuerSignedJWT = exampleIssuerSignedJwtWithIssuer(issuerUri);
+        VerificationException exception = assertThrows(VerificationException.class,
+                () -> trustedIssuer.resolveIssuerVerifyingKeys(issuerSignedJWT)
+        );
+
+        assertThat(exception.getMessage(), endsWith("HTTPS URI required to retrieve JWT VC Issuer Metadata"));
+    }
+
+    @Test
+    public void shouldRejectJwtsWithUnexpectedIssuerClaims() throws JsonProcessingException {
+        String regex = "https://.*\\.example\\.com";
+        Pattern issuerUriRegex = Pattern.compile(regex);
+        TrustedSdJwtIssuer trustedIssuer = new JwtVcMetadataTrustedSdJwtIssuer(
+                issuerUriRegex, mockHttpDataFetcher());
+
+        String issuerUri = "https://trial.authlete.com"; // does not match the regex above
+        IssuerSignedJWT issuerSignedJWT = exampleIssuerSignedJwtWithIssuer(issuerUri);
+        VerificationException exception = assertThrows(VerificationException.class,
+                () -> trustedIssuer.resolveIssuerVerifyingKeys(issuerSignedJWT)
+        );
+
+        assertThat(exception.getMessage(),
+                endsWith(String.format("Unexpected Issuer URI claim. Expected=/%s/, Got=%s", regex, issuerUri)));
+    }
+
+    @Test
+    public void shouldFailOnInvalidJwkExposed() throws JsonProcessingException {
+        String issuerUri = "https://issuer.example.com";
+
+        ObjectNode metadata = SdJwtUtils.mapper.createObjectNode();
+        metadata.put("issuer", issuerUri);
+        metadata.set("jwks", SdJwtUtils.mapper.readTree(
+                "{\n" +
+                        "  \"keys\": [\n" +
+                        "    {\n" +
+                        "      \"kty\": \"EC\",\n" +
+                        "      \"x\": \"invalid\",\n" +
+                        "      \"y\": \"invalid\"\n" +
+                        "    }\n" +
+                        "  ]\n" +
+                        "}"
+        ));
+
+        genericTestShouldFail(
+                exampleIssuerSignedJwt(),
+                mockHttpDataFetcherWithMetadata(issuerUri, metadata),
+                "A potential JWK was retrieved but found invalid",
+                "Unsupported or invalid JWK"
+        );
+    }
+
+    @Test
+    public void shouldFailOnUnexpectedIssuerExposed() throws JsonProcessingException {
+        String issuerUri = "https://issuer.example.com";
+
+        ObjectNode metadata = SdJwtUtils.mapper.createObjectNode();
+        metadata.put("issuer", "https://another-issuer.example.com");
+
+        genericTestShouldFail(
+                exampleIssuerSignedJwt(),
+                mockHttpDataFetcherWithMetadata(issuerUri, metadata),
+                "Unexpected metadata's issuer",
+                null
+        );
+    }
+
+    @Test
+    public void shouldFailOnMalformedJwtVcMetadataExposed() throws JsonProcessingException {
+        String issuerUri = "https://issuer.example.com";
+
+        ObjectNode metadata = SdJwtUtils.mapper.createObjectNode();
+        // This is malformed because the issuer must be a string
+        metadata.set("issuer", SdJwtUtils.mapper.readTree("{}"));
+
+        genericTestShouldFail(
+                exampleIssuerSignedJwt(),
+                mockHttpDataFetcherWithMetadata(issuerUri, metadata),
+                "Failed to parse exposed JWT VC Metadata",
+                null
+        );
+    }
+
+    @Test
+    public void shouldFailOnMalformedJwksExposed() throws JsonProcessingException {
+        List<JsonNode> malformedJwks = Arrays.asList(
+                SdJwtUtils.mapper.readTree("[]"),
+                SdJwtUtils.mapper.readTree("{\"keys\": {}}")
+        );
+
+        for (JsonNode jwks : malformedJwks) {
+            String issuerUri = "https://issuer.example.com";
+
+            ObjectNode metadata = SdJwtUtils.mapper.createObjectNode();
+            metadata.put("issuer", issuerUri);
+            metadata.put("jwks_uri", "https://issuer.example.com/api/vci/jwks");
+
+            genericTestShouldFail(
+                    exampleIssuerSignedJwt(),
+                    mockHttpDataFetcherWithMetadataAndJwks(issuerUri, metadata, jwks),
+                    "Failed to parse exposed JWKS",
+                    null
+            );
+        }
+    }
+
+    @Test
+    public void shouldFailOnMissingJwksOnMetadataEndpoint() throws JsonProcessingException {
+        String issuerUri = "https://issuer.example.com";
+
+        // There are no means to resolve JWKS with these metadata
+        ObjectNode metadata = SdJwtUtils.mapper.createObjectNode();
+        metadata.put("issuer", issuerUri);
+
+        genericTestShouldFail(
+                exampleIssuerSignedJwt(),
+                mockHttpDataFetcherWithMetadata(issuerUri, metadata),
+                String.format("Could not resolve issuer JWKs with URI: %s", issuerUri),
+                null
+        );
+    }
+
+    @Test
+    public void shouldFailOnEmptyPublishedJwkList() throws Exception {
+        // This JWKS to publish has an empty list of keys, which is unexpected.
+        JsonNode jwks = SdJwtUtils.mapper.readTree("{\"keys\": []}");
+
+        // JWT VC Metadata
+        String issuerUri = "https://issuer.example.com";
+        ObjectNode metadata = SdJwtUtils.mapper.createObjectNode();
+        metadata.put("issuer", issuerUri);
+        metadata.set("jwks", jwks);
+
+        // Act and assert
+        genericTestShouldFail(
+                exampleIssuerSignedJwt(),
+                mockHttpDataFetcherWithMetadataAndJwks(issuerUri, metadata, jwks),
+                String.format("Issuer JWKs were unexpectedly resolved to an empty list. Issuer URI: %s", issuerUri),
+                null
+        );
+    }
+
+    @Test
+    public void shouldFailOnNoPublishedJwkMatchingJwtKid() throws Exception {
+        // Alter kid fields of all JWKs to publish, so as none is a match
+        JsonNode jwks = exampleJwks();
+        for (JsonNode jwk : jwks.get("keys")) {
+            ((ObjectNode) jwk).put("kid", jwk.get("kid").asText() + "-wont-match");
+        }
+
+        // JWT VC Metadata
+        String issuerUri = "https://issuer.example.com";
+        ObjectNode metadata = SdJwtUtils.mapper.createObjectNode();
+        metadata.put("issuer", issuerUri);
+        metadata.set("jwks", jwks);
+
+        // This JWT specifies a key ID in its header
+        IssuerSignedJWT issuerSignedJWT = exampleIssuerSignedJwt("sdjwt/s20.1-sdjwt+kb--explicit-kid.txt");
+        String kid = issuerSignedJWT.getHeader().getKeyId();
+
+        // Act and assert
+        genericTestShouldFail(
+                issuerSignedJWT,
+                mockHttpDataFetcherWithMetadataAndJwks(issuerUri, metadata, jwks),
+                String.format("No published JWK was found to match kid: %s", kid),
+                null
+        );
+    }
+
+    @Test
+    public void shouldFailOnPublishedJwksWithDuplicateKid() throws JsonProcessingException {
+        // This JWT specifies a key ID in its header
+
+        IssuerSignedJWT issuerSignedJWT = exampleIssuerSignedJwt("sdjwt/s20.1-sdjwt+kb--explicit-kid.txt");
+
+        // Set the same kid to all JWKs to publish, which is problematic
+
+        String kid = issuerSignedJWT.getHeader().getKeyId();
+        JsonNode jwks = exampleJwks();
+        for (JsonNode jwk : jwks.get("keys")) {
+            ((ObjectNode) jwk).put("kid", kid);
+        }
+
+        // JWT VC Metadata
+
+        String issuerUri = "https://issuer.example.com";
+        ObjectNode metadata = SdJwtUtils.mapper.createObjectNode();
+        metadata.put("issuer", issuerUri);
+        metadata.set("jwks", jwks);
+
+        TrustedSdJwtIssuer trustedIssuer = new JwtVcMetadataTrustedSdJwtIssuer(
+                issuerUri, mockHttpDataFetcherWithMetadata(issuerUri, metadata));
+
+        // Act and assert
+
+        VerificationException exception = assertThrows(VerificationException.class,
+                () -> trustedIssuer.resolveIssuerVerifyingKeys(issuerSignedJWT)
+        );
+
+        assertThat(exception.getMessage(),
+                endsWith(String.format("Cannot choose between multiple exposed JWKs with same kid: %s", kid)));
+    }
+
+    @Test
+    public void shouldFailOnIOErrorWhileFetchingMetadata() throws JsonProcessingException {
+        String issuerUri = "https://issuer.example.com";
+
+        ObjectNode metadata = SdJwtUtils.mapper.createObjectNode();
+        metadata.put("issuer", issuerUri);
+
+        HttpDataFetcher mockFetcher = mockHttpDataFetcherWithMetadata(
+                // HTTP can only mock an unrelated issuer
+                "https://another-issuer.example.com",
+                metadata
+        );
+
+        genericTestShouldFail(
+                exampleIssuerSignedJwt(),
+                mockFetcher,
+                String.format("Could not fetch data from URI: %s", issuerUri),
+                null
+        );
+    }
+
+    private void genericTestShouldFail(
+            IssuerSignedJWT issuerSignedJWT,
+            HttpDataFetcher mockFetcher,
+            String errorMessage,
+            String causeErrorMessage
+    ) {
+        TrustedSdJwtIssuer trustedIssuer = new JwtVcMetadataTrustedSdJwtIssuer(
+                issuerSignedJWT.getPayload().get(SdJws.CLAIM_NAME_ISSUER).asText(),
+                mockFetcher
+        );
+
+        VerificationException exception = assertThrows(VerificationException.class,
+                () -> trustedIssuer.resolveIssuerVerifyingKeys(issuerSignedJWT)
+        );
+
+        assertTrue(exception.getMessage().contains(errorMessage));
+        if (causeErrorMessage != null) {
+            assertTrue(exception.getCause().getMessage().contains(causeErrorMessage));
+        }
+    }
+
+    private IssuerSignedJWT exampleIssuerSignedJwt() {
+        return exampleIssuerSignedJwt("sdjwt/s20.1-sdjwt+kb.txt");
+    }
+
+    private IssuerSignedJWT exampleIssuerSignedJwt(String sdJwtVector) {
+        return exampleIssuerSignedJwt(sdJwtVector, "https://issuer.example.com");
+    }
+
+    private IssuerSignedJWT exampleIssuerSignedJwtWithIssuer(String issuerUri) {
+        return exampleIssuerSignedJwt("sdjwt/s20.1-sdjwt+kb.txt", issuerUri);
+    }
+
+    private IssuerSignedJWT exampleIssuerSignedJwt(String sdJwtVector, String issuerUri) {
+        String sdJwtVPString = TestUtils.readFileAsString(getClass(), sdJwtVector);
+        IssuerSignedJWT issuerSignedJWT = SdJwtVP.of(sdJwtVPString).getIssuerSignedJWT();
+        ((ObjectNode) issuerSignedJWT.getPayload()).put("iss", issuerUri);
+        return issuerSignedJWT;
+    }
+
+    private JsonNode exampleJwks() throws JsonProcessingException {
+        return SdJwtUtils.mapper.readTree(
+                TestUtils.readFileAsString(getClass(),
+                        "sdjwt/s30.1-jwt-vc-metadata-jwks.json"
+                )
+        );
+    }
+
+    private HttpDataFetcher mockHttpDataFetcher() throws JsonProcessingException {
+        ObjectNode metadata = SdJwtUtils.mapper.createObjectNode();
+        metadata.put("issuer", "https://issuer.example.com");
+        metadata.put("jwks_uri", "https://issuer.example.com/api/vci/jwks");
+
+        return mockHttpDataFetcherWithMetadata(
+                metadata.get("issuer").asText(),
+                metadata
+        );
+    }
+
+    private HttpDataFetcher mockHttpDataFetcherWithMetadata(
+            String issuer, JsonNode metadata
+    ) throws JsonProcessingException {
+        return mockHttpDataFetcherWithMetadataAndJwks(issuer, metadata, exampleJwks());
+    }
+
+    private HttpDataFetcher mockHttpDataFetcherWithMetadataAndJwks(
+            String issuer, JsonNode metadata, JsonNode jwks
+    ) {
+        return uri -> {
+            if (!uri.startsWith(issuer)) {
+                throw new UnknownHostException("Unavailable URI");
+            }
+
+            if (uri.endsWith("/.well-known/jwt-vc-issuer")) {
+                return metadata;
+            } else if (uri.endsWith("/api/vci/jwks")) {
+                return jwks;
+            } else {
+                throw new UnknownHostException("Unavailable URI");
+            }
+        };
+    }
+}

core/src/test/java/org/keycloak/sdjwt/consumer/SdJwtPresentationConsumerTest.java

@@ -0,0 +1,119 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.keycloak.common.VerificationException;
+import org.keycloak.rule.CryptoInitRule;
+import org.keycloak.sdjwt.IssuerSignedJwtVerificationOpts;
+import org.keycloak.sdjwt.TestSettings;
+import org.keycloak.sdjwt.TestUtils;
+import org.keycloak.sdjwt.vp.KeyBindingJwtVerificationOpts;
+import org.keycloak.sdjwt.vp.SdJwtVP;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public abstract class SdJwtPresentationConsumerTest {
+
+    @ClassRule
+    public static CryptoInitRule cryptoInitRule = new CryptoInitRule();
+
+    SdJwtPresentationConsumer sdJwtPresentationConsumer = new SdJwtPresentationConsumer();
+    static TestSettings testSettings = TestSettings.getInstance();
+
+    @Test
+    public void shouldVerifySdJwtPresentation() throws VerificationException {
+        sdJwtPresentationConsumer.verifySdJwtPresentation(
+                exampleSdJwtVP(),
+                examplePresentationRequirements(),
+                exampleTrustedSdJwtIssuers(),
+                defaultIssuerSignedJwtVerificationOpts(),
+                defaultKeyBindingJwtVerificationOpts()
+        );
+    }
+
+    @Test
+    public void shouldFail_IfPresentationRequirementsNotMet() {
+        SimplePresentationDefinition definition = SimplePresentationDefinition.builder()
+                .addClaimRequirement("vct", ".*diploma.*")
+                .build();
+
+        VerificationException exception = assertThrows(VerificationException.class,
+                () -> sdJwtPresentationConsumer.verifySdJwtPresentation(
+                        exampleSdJwtVP(),
+                        definition,
+                        exampleTrustedSdJwtIssuers(),
+                        defaultIssuerSignedJwtVerificationOpts(),
+                        defaultKeyBindingJwtVerificationOpts()
+                )
+        );
+
+        assertTrue(exception.getMessage()
+                .contains("A required field was not presented: `vct`"));
+    }
+
+    private SdJwtVP exampleSdJwtVP() {
+        String sdJwtVPString = TestUtils.readFileAsString(getClass(), "sdjwt/s20.1-sdjwt+kb.txt");
+        return SdJwtVP.of(sdJwtVPString);
+    }
+
+    private PresentationRequirements examplePresentationRequirements() {
+        return SimplePresentationDefinition.builder()
+                .addClaimRequirement("sub", "\"user_[0-9]+\"")
+                .addClaimRequirement("given_name", ".*")
+                .build();
+    }
+
+    private List<TrustedSdJwtIssuer> exampleTrustedSdJwtIssuers() {
+        return Arrays.asList(
+                new StaticTrustedSdJwtIssuer(
+                        Collections.singletonList(testSettings.holderVerifierContext)
+                ),
+                new StaticTrustedSdJwtIssuer(
+                        Collections.singletonList(testSettings.issuerVerifierContext)
+                )
+        );
+    }
+
+    private IssuerSignedJwtVerificationOpts defaultIssuerSignedJwtVerificationOpts() {
+        return IssuerSignedJwtVerificationOpts.builder()
+                .withValidateIssuedAtClaim(false)
+                .withValidateNotBeforeClaim(false)
+                .build();
+    }
+
+    private KeyBindingJwtVerificationOpts defaultKeyBindingJwtVerificationOpts() {
+        return KeyBindingJwtVerificationOpts.builder()
+                .withKeyBindingRequired(true)
+                .withAllowedMaxAge(Integer.MAX_VALUE)
+                .withNonce("1234567890")
+                .withAud("https://verifier.example.org")
+                .withValidateExpirationClaim(false)
+                .withValidateNotBeforeClaim(false)
+                .build();
+    }
+}

core/src/test/java/org/keycloak/sdjwt/consumer/SimplePresentationDefinitionTest.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.sdjwt.consumer;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.Test;
+import org.keycloak.common.VerificationException;
+import org.keycloak.sdjwt.SdJwtUtils;
+import org.keycloak.sdjwt.TestUtils;
+
+import static org.hamcrest.CoreMatchers.startsWith;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThrows;
+
+/**
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public class SimplePresentationDefinitionTest {
+
+    private final ObjectMapper mapper = SdJwtUtils.mapper;
+
+    @Test
+    public void testCheckIfSatisfiedBy() throws VerificationException, JsonProcessingException {
+        SimplePresentationDefinition definition = SimplePresentationDefinition.builder()
+                .addClaimRequirement("vct", ".*identity_credential.*")
+                .addClaimRequirement("given_name", "\"John\"")
+                .addClaimRequirement("cat", "123")
+                .addClaimRequirement("addr", ".*\"(Douala|Berlin)\".*")
+                .addClaimRequirement("colors", "\\[\"red\",.*")
+                .build();
+
+        definition.checkIfSatisfiedBy(exampleDisclosedPayload());
+    }
+
+    @Test
+    public void testCheckIfSatisfiedBy_shouldFailOnRequiredFieldMissing() {
+        SimplePresentationDefinition definition = SimplePresentationDefinition.builder()
+                .addClaimRequirement("family_name", ".*")
+                .build();
+
+        VerificationException exception = assertThrows(VerificationException.class,
+                () -> definition.checkIfSatisfiedBy(exampleDisclosedPayload()));
+
+        assertEquals("A required field was not presented: `family_name`", exception.getMessage());
+    }
+
+    @Test
+    public void testCheckIfSatisfiedBy_shouldFailOnNonMatchingPattern() {
+        SimplePresentationDefinition definition = SimplePresentationDefinition.builder()
+                .addClaimRequirement("vct", ".*diploma.*")
+                .build();
+
+        VerificationException exception = assertThrows(VerificationException.class,
+                () -> definition.checkIfSatisfiedBy(exampleDisclosedPayload()));
+
+        assertThat(exception.getMessage(), startsWith("Pattern matching failed for required field"));
+    }
+
+    private JsonNode exampleDisclosedPayload() throws JsonProcessingException {
+        String content = TestUtils.readFileAsString(getClass(),
+                "sdjwt/s7.4-sample-disclosed-issuer-payload.json");
+        return mapper.readTree(content);
+    }
+}

core/src/test/java/org/keycloak/sdjwt/sdjwtvp/SdJwtVPVerificationTest.java

@@ -23,6 +23,7 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.junit.ClassRule;
 import org.junit.Test;
 import org.keycloak.common.VerificationException;
+import org.keycloak.crypto.SignatureVerifierContext;
 import org.keycloak.rule.CryptoInitRule;
 import org.keycloak.sdjwt.IssuerSignedJwtVerificationOpts;
 import org.keycloak.sdjwt.SdJwt;
@@ -34,6 +35,7 @@ import org.keycloak.sdjwt.vp.SdJwtVP;
 
 import java.time.Instant;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 
 import static org.hamcrest.CoreMatchers.containsString;
@@ -63,6 +65,7 @@ public abstract class SdJwtVPVerificationTest {
         SdJwtVP sdJwtVP = SdJwtVP.of(sdJwtVPString);
 
         sdJwtVP.verify(
+                defaultIssuerVerifyingKeys(),
                 defaultIssuerSignedJwtVerificationOpts().build(),
                 defaultKeyBindingJwtVerificationOpts().build()
         );
@@ -70,15 +73,17 @@ public abstract class SdJwtVPVerificationTest {
 
     @Test
     public void testVerif_s20_8_sdjwt_with_kb__AltCnfCurves() throws VerificationException {
-        List<String> entries = Arrays.asList(new String[]{
+        List<String> entries = Arrays.asList(
-            "sdjwt/s20.8-sdjwt+kb--es384.txt", "sdjwt/s20.8-sdjwt+kb--es512.txt"
+                "sdjwt/s20.8-sdjwt+kb--es384.txt",
-        });
+                "sdjwt/s20.8-sdjwt+kb--es512.txt"
+        );
 
         for (String entry : entries) {
             String sdJwtVPString = TestUtils.readFileAsString(getClass(), entry);
             SdJwtVP sdJwtVP = SdJwtVP.of(sdJwtVPString);
 
             sdJwtVP.verify(
+                    defaultIssuerVerifyingKeys(),
                     defaultIssuerSignedJwtVerificationOpts().build(),
                     defaultKeyBindingJwtVerificationOpts().build()
             );
@@ -87,18 +92,19 @@ public abstract class SdJwtVPVerificationTest {
 
     @Test
     public void testVerif_s20_8_sdjwt_with_kb__CnfRSA() throws VerificationException {
-        List<String> entries = Arrays.asList(new String[]{
+        List<String> entries = Arrays.asList(
                 "sdjwt/s20.8-sdjwt+kb--cnf-rsa-rs256.txt",
                 "sdjwt/s20.8-sdjwt+kb--cnf-rsa-ps256.txt",
                 "sdjwt/s20.8-sdjwt+kb--cnf-rsa-ps384.txt",
                 "sdjwt/s20.8-sdjwt+kb--cnf-rsa-ps512.txt"
-        });
+        );
 
         for (String entry : entries) {
             String sdJwtVPString = TestUtils.readFileAsString(getClass(), entry);
             SdJwtVP sdJwtVP = SdJwtVP.of(sdJwtVPString);
 
             sdJwtVP.verify(
+                    defaultIssuerVerifyingKeys(),
                     defaultIssuerSignedJwtVerificationOpts().build(),
                     defaultKeyBindingJwtVerificationOpts().build()
             );
@@ -111,6 +117,7 @@ public abstract class SdJwtVPVerificationTest {
         SdJwtVP sdJwtVP = SdJwtVP.of(sdJwtVPString);
 
         sdJwtVP.verify(
+                defaultIssuerVerifyingKeys(),
                 defaultIssuerSignedJwtVerificationOpts().build(),
                 defaultKeyBindingJwtVerificationOpts()
                         .withKeyBindingRequired(false)
@@ -327,6 +334,7 @@ public abstract class SdJwtVPVerificationTest {
         UnsupportedOperationException exception = assertThrows(
                 UnsupportedOperationException.class,
                 () -> sdJwtVP.verify(
+                        defaultIssuerVerifyingKeys(),
                         defaultIssuerSignedJwtVerificationOpts().build(),
                         defaultKeyBindingJwtVerificationOpts().build()
                 )
@@ -341,8 +349,8 @@ public abstract class SdJwtVPVerificationTest {
                 // The cnf/jwk object has an unrecognized key type
                 "sdjwt/s20.8-sdjwt+kb--cnf-jwk-is-malformed.txt",
                 defaultKeyBindingJwtVerificationOpts().build(),
-                "Malformed or unsupported cnf/jwk claim",
+                "Could not process cnf/jwk",
-                null
+                "Unsupported or invalid JWK"
         );
     }
 
@@ -352,8 +360,8 @@ public abstract class SdJwtVPVerificationTest {
                 // HMAC cnf/jwk parsing is not supported
                 "sdjwt/s20.8-sdjwt+kb--cnf-hmac.txt",
                 defaultKeyBindingJwtVerificationOpts().build(),
-                "Malformed or unsupported cnf/jwk claim",
+                "Could not process cnf/jwk",
-                null
+                "Unsupported or invalid JWK"
         );
     }
 
@@ -369,6 +377,7 @@ public abstract class SdJwtVPVerificationTest {
         VerificationException exception = assertThrows(
                 VerificationException.class,
                 () -> sdJwtVP.verify(
+                        defaultIssuerVerifyingKeys(),
                         defaultIssuerSignedJwtVerificationOpts().build(),
                         keyBindingJwtVerificationOpts
                 )
@@ -405,6 +414,7 @@ public abstract class SdJwtVPVerificationTest {
         VerificationException exception = assertThrows(
                 VerificationException.class,
                 () -> sdJwtVP.verify(
+                        defaultIssuerVerifyingKeys(),
                         defaultIssuerSignedJwtVerificationOpts().build(),
                         keyBindingJwtVerificationOpts
                 )
@@ -416,9 +426,12 @@ public abstract class SdJwtVPVerificationTest {
         }
     }
 
+    private List<SignatureVerifierContext> defaultIssuerVerifyingKeys() {
+        return Collections.singletonList(testSettings.issuerVerifierContext);
+    }
+
     private IssuerSignedJwtVerificationOpts.Builder defaultIssuerSignedJwtVerificationOpts() {
         return IssuerSignedJwtVerificationOpts.builder()
-                .withVerifier(testSettings.issuerVerifierContext)
                 .withValidateIssuedAtClaim(false)
                 .withValidateNotBeforeClaim(false);
     }

core/src/test/resources/sdjwt/s20.1-sdjwt+kb--explicit-kid.txt

@@ -0,0 +1,6 @@
+eyJhbGciOiJFUzI1NiIsInR5cCI6ImV4YW1wbGUrc2Qtand0Iiwia2lkIjoiZG9jLXNpZ25lci0wNS0yNS0yMDIyIn0.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.N0xUjkyxK6q-uvDF0bLpOSq8XI-QXZ9iI5U4w4GSx9NwDZQfg4P9SffgjQ11LwZKKfLprNernp53-oRBWaOuDA
+
+~WyJsa2x4RjVqTVlsR1RQVW92TU5JdkNBIiwgIlVTIl0
+~
+
+eyJraWQiOiJob2xkZXIiLCJ0eXAiOiJrYitqd3QiLCJhbGciOiJFUzI1NiJ9.eyJub25jZSI6IjEyMzQ1Njc4OTAiLCJhdWQiOiJodHRwczovL3ZlcmlmaWVyLmV4YW1wbGUub3JnIiwiaWF0IjoxNzAyMzE1Njc5LCJzZF9oYXNoIjoiSEtwV1JKMmtqaXluSjBBbDlNTFJ5dmFjSS1HSVpmMHN5SUVvUnB2VktESSJ9.YFBWGvdAq8UIz7Y3b2lVMaQAFCkS02qkClGOPsn9qE-xDOgqT6VYx2D9-nSAU69dvkTdq6ynPMutlCYNtvtZ6w

core/src/test/resources/sdjwt/s30.1-jwt-vc-metadata-jwks.json

@@ -0,0 +1,31 @@
+{
+  "keys": [
+    {
+      "kid": "doc-signer-05-25-2022",
+      "kty": "EC",
+      "d": "Ur2bNKuBPOrAaxsRnbSH6hIhmNTxSGXshDSUD1a1y7g",
+      "crv": "P-256",
+      "x": "b28d4MwZMjw8-00CG4xfnn9SLMVMM19SlqZpVb_uNtQ",
+      "y": "Xv5zWwuoaTgdS6hV43yI6gBwTnjukmFQQnJ_kCxzqk8"
+    },
+    {
+      "kty": "EC",
+      "crv": "P-256",
+      "kid": "J1FwJP87C6-QN_WSIOmJAQc6n5CQ_bZdaFJ5GDnW1Rk",
+      "x5c": [
+        "MIIBXTCCAQSgAwIBAgIGAYyR2cIZMAoGCCqGSM49BAMCMDYxNDAyBgNVBAMMK0oxRndKUDg3QzYtUU5fV1NJT21KQVFjNm41Q1FfYlpkYUZKNUdEblcxUmswHhcNMjMxMjIyMTQwNjU2WhcNMjQxMDE3MTQwNjU2WjA2MTQwMgYDVQQDDCtKMUZ3SlA4N0M2LVFOX1dTSU9tSkFRYzZuNUNRX2JaZGFGSjVHRG5XMVJrMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEAopVeboJpYRycw1YKkkROXfCpKEKl9Y1YPFhOGj4xTg2UOunxTxSIVkT94qFVIuu1hkEoE2NxelZo3+yTFUODDAKBggqhkjOPQQDAgNHADBEAiBnFjScBcvERleLjMCu5NbxJKkNsa/gQhkXTfDmbq+T3gIgVazbsVdQvZgluc9nJYQxWlzXT9i6f+wgUKx0KCYbj3A="
+      ],
+      "x": "AopVeboJpYRycw1YKkkROXfCpKEKl9Y1YPFhOGj4xTg",
+      "y": "NlDrp8U8UiFZE_eKhVSLrtYZBKBNjcXpWaN_skxVDgw",
+      "alg": "ES256"
+    },
+    {
+      "kty": "EC",
+      "crv": "P-256",
+      "kid": "ZbAAKwhynrqBnYlHdEkBIvNJFZZH_bRg1KIopKfZ6O8",
+      "x": "eshMYyyoEsH_Eb85a7o76msXFPokfvNaeyY3u5qDm3M",
+      "y": "q0lGMn_UXiWJdgJtSCNzh9zPC6s7qKqQMo4V1i-69jA",
+      "alg": "ES256"
+    }
+  ]
+}

core/src/test/resources/sdjwt/s7.4-sample-disclosed-issuer-payload.json

@@ -0,0 +1,7 @@
+{
+  "vct": "https://credentials.example.com/identity_credential",
+  "given_name": "John",
+  "cat": 123,
+  "addr": {"city": "Douala", "country": "CM"},
+  "colors": ["red", "green"]
+}

crypto/default/src/test/java/org/keycloak/crypto/def/test/sdjwt/DefaultCryptoJwtVcMetadataTrustedSdJwtIssuerTest.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.crypto.def.test.sdjwt;
+
+import org.junit.Assume;
+import org.junit.Before;
+import org.keycloak.common.util.Environment;
+import org.keycloak.sdjwt.consumer.JwtVcMetadataTrustedSdJwtIssuerTest;
+
+/**
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public class DefaultCryptoJwtVcMetadataTrustedSdJwtIssuerTest extends JwtVcMetadataTrustedSdJwtIssuerTest {
+
+    @Before
+    public void before() {
+        // Run this test just if java is not in FIPS mode
+        Assume.assumeFalse("Java is in FIPS mode. Skipping the test.", Environment.isJavaInFipsMode());
+    }
+}

crypto/default/src/test/java/org/keycloak/crypto/def/test/sdjwt/DefaultCryptoSdJwtPresentationConsumerTest.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.crypto.def.test.sdjwt;
+
+import org.junit.Assume;
+import org.junit.Before;
+import org.keycloak.common.util.Environment;
+import org.keycloak.sdjwt.consumer.SdJwtPresentationConsumerTest;
+
+/**
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public class DefaultCryptoSdJwtPresentationConsumerTest extends SdJwtPresentationConsumerTest {
+
+    @Before
+    public void before() {
+        // Run this test just if java is not in FIPS mode
+        Assume.assumeFalse("Java is in FIPS mode. Skipping the test.", Environment.isJavaInFipsMode());
+    }
+}

crypto/elytron/src/test/java/org/keycloak/crypto/elytron/test/sdjwt/ElytronCryptoJwtVcMetadataTrustedSdJwtIssuerTest.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.crypto.elytron.test.sdjwt;
+
+import org.keycloak.sdjwt.consumer.JwtVcMetadataTrustedSdJwtIssuerTest;
+
+/**
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public class ElytronCryptoJwtVcMetadataTrustedSdJwtIssuerTest extends JwtVcMetadataTrustedSdJwtIssuerTest {
+}

crypto/elytron/src/test/java/org/keycloak/crypto/elytron/test/sdjwt/ElytronCryptoSdJwtPresentationConsumerTest.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2024 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.crypto.elytron.test.sdjwt;
+
+import org.keycloak.sdjwt.consumer.SdJwtPresentationConsumerTest;
+
+/**
+ * @author <a href="mailto:Ingrid.Kamga@adorsys.com">Ingrid Kamga</a>
+ */
+public class ElytronCryptoSdJwtPresentationConsumerTest extends SdJwtPresentationConsumerTest {
+}