Identity as a Service:Integrate SSO by OIDC

{
  "keys": [
    {
      "kty": "RSA",
      "e": "AQAB",
      "use": "sig",
      "kid": "KEYkYnc55G********CTvT7So44RGDYdbfs",
      "n": "pXmYkIpy1vaNjTMclU86BQjfmDhjlqMAX8ySVvh9gO-nae4ayvG_*********-v4gP27T7u6bUy0GXTlh3eKE0v1LYB81nfqjF2uazlPwPR5yYOhhWcK-gMNByLfE3CnkDc1YGwA3dZmIz-ZjOCKy8xLaBuqjrvwn5tpMpAoYEEaH4jIm7unTdhbKEKspNR-UXKD8q9RppMh5Tn2sB6oPHlQANudJDgqSwEOevIrdmHU0Zqxrb9cscGH9hH0QjmYEu72yI8BVeliPo3jK6JIoqCIcj5K_t8BJlFQ9QLJ8_o9tmd3BFv5_LVsh4BKGw"
    }
  ]
}

<dependency>
  <groupId>org.bitbucket.b_c</groupId>
  <artifactId>jose4j</artifactId>
  <version>0.7.12</version>
</dependency>

import org.jose4j.jwk.JsonWebKey;
import org.jose4j.jwk.JsonWebKeySet;
import org.jose4j.jwt.JwtClaims;
import org.jose4j.jwt.consumer.JwtConsumer;
import org.jose4j.jwt.consumer.JwtConsumerBuilder;

public class IdTokenTest {

    public static void main(String[] args) throws Exception {
        // EIAM's Issuer identifier (OIDC issuer URL)
        String issuer = "https://eiam-api-cn-hangzhou.aliyuncs.com/v2/idaas_padyrlux3mphrlsex4uonyqhxu/**********/oidc";
        // The unique identifier of the current application (obtained from EIAM)
        String appId = "app_mkif4*****pxpzbasqmu";
        // Application public key in JSON format, used to verify the JWT signature
        String jwkJson = "{\n" + "  \"keys\": [\n" + "    {\n" + "      \"kty\": \"RSA\",\n" + "      \"e\": \"AQAB\",\n" + "      \"use\": \"sig\",\n" + "      \"kid\": \"KEY2H82C2at57itnW4onT3p1ySjwH4nirjCk\",\n" + "      \"n\": \"w7Jl3fAUJp_9GuxV*****QsOA4lnXR5OD4kF4QbIeBiDiH8_MThrFi9k2MB6YMkSzf5JfIkpAS3JCqZ7k6Wooydp4pzaZNZAk3SGzdsa022RmAT" + "-Iayi4Yj6J9tSdTQCjwh2XkzzsIxA_Hla8rWiQ8Vhw1" +
            "-7QArgObfe67nSR7LxD55MFLxk9FU0*****RlGhrQGE_0LUuGWtCJG1r1e6aKquyswfxxAr3Rvj8QGIeJrG0R1Pv8m8d1_5OdULhB7149VqjM6D98WFjab0U2SNv0UlREZXTcS4p-2QNm_1egYRRpJEY_00FZqNSYsmErMGepYhO_61KoGqd8cphWQ\"\n" + "    }\n" + "  ]\n" + "}";
        String jwt = "eyJraWQiOiJLRVkySDgyQzJhdD*****uaXJqQ2siLCJhbGciOiJSUzI1NiJ9.eyJzdWIiOiJ1c2Vy*****lmNjRjZjR3amFrbnBieGpjd3V1IiwianRpIjoiand0X2FhYWFkYWllYTc2eWg1cW0zcm11bnoyeGg0eHd5aTJzZHBoNjR6aSIsImlzcyI6Imh0dHBzOi8vZWlhbS1hcGktY24taGFuZ3pob3UuYWxpeXVuY3MuY29tL3YyL2lkYWFzX3BhZHlybHV4M21waHJsc2V4NHVvbnlxaHh1L2FwcF9ta2lmNGR3bHBlaDZkbnM0cHhwemJhc3FtdS9vaWRjIiwiaWF0IjoxNjUzNjMwMDQxLCJuYmYiOjE2NTM2MzAwNDEsImV4cCI6MTY1MzYzMDM0MSwiYXVkIjoiYXBwX21raWY0ZHdscGVoNmRuczRweHB6YmFzcW11IiwibmFtZSI6InRlc3QiLCJwcmVmZXJyZWRfdXNlcm5hbWUiOiJ0ZXN0IiwidXBkYXRlZF9hdCI6MTY1MzYyODU5MH0.pAsUNB8OkdpIxJMZRfLJ7Pa31tsJyl44a1jVIlvdQxwOtPULAwrFxnB0X3eQx89hUGCdvYWl9FO9o-5kT7L-RER0wJYz9YNKqrVNBnaRwINRZyeYLRVurWMMzODQz-V0ULd9raM1M_i2f_SoWFs1gPFtYh_ijUARHISi7Q3q93ZfAuY8Lq2Nq07QunmDbosvioUd5wJG7WCxW5XXZYDUQe9p5IEYd1MSvnWuTOLbg7rKn0Vm4dNYGWjz1WuoAyCsc_QxOCqpmQ_2czoqPeN-SvPJAQ2CykLk7DSnGpABw1aNrjDidLS9Beqsga9VDCth86sk_0lyTZOaORtUrfVTtQ";
        // Parse JWK public key set
        JsonWebKeySet jsonWebKeySet = new JsonWebKeySet(jwkJson);
        // Create JWT validator
        JwtConsumer jwtConsumer = createJwtConsumer(jsonWebKeySet, issuer, appId);
        // Execute signature verification and parse claims
        JwtClaims jwtClaims = jwtConsumer.processToClaims(jwt);
        // Prints the user information from the ID Token
        System.out.println(jwtClaims);
    }

    public static JwtConsumer createJwtConsumer(JsonWebKeySet jsonWebKeySet, String issuer, String appId) {
        // Configure JWT validator using builder pattern
        final JwtConsumerBuilder jwtConsumerBuilder = new JwtConsumerBuilder();
        jwtConsumerBuilder.setExpectedIssuer(issuer);
        jwtConsumerBuilder.setRequireIssuedAt();
        jwtConsumerBuilder.setRequireExpirationTime();
        jwtConsumerBuilder.setAllowedClockSkewInSeconds(60);
        jwtConsumerBuilder.setExpectedAudience(appId);
        // Set public key resolver (match JWK by kid)
        jwtConsumerBuilder.setVerificationKeyResolver((jws, nestingContext) -> {
            // Get kid from JWT header
            final String signKeyId = jws.getKeyIdHeaderValue();
            // Find the matching key in the JWK set
            for (JsonWebKey jsonWebKey : jsonWebKeySet.getJsonWebKeys()) {
                if (signKeyId.equals(jsonWebKey.getKeyId())) {
                    return jsonWebKey.getKey();
                }
            }
            throw new RuntimeException("Cannot find verification key: " + signKeyId);
        });
        return jwtConsumerBuilder.build();
    }
}

JWT Claims Set:{sub=user_dt6kj6yf64cf4wjaknpbxjcwuu,
                jti=jwt_aaaadaiea76yh5qm3rmunz2xh4xwyi2sdph64zi,
                iss=https://eiam-api-cn-hangzhou.aliyuncs.com/v2/idaas_padyrlux3mphrlsex4uonyqhxu/app_**********/oidc,
                iat=1653630041,
                nbf=1653630041,
                exp=1653630341,
                aud=app_**********,
                name=test,
                preferred_username=test,
                updated_at=1653628590
               }