Examples with JwtHeader io.jans.as.model.jwt.JwtHeader used on opensource projects

Example 1 with JwtHeader

use of io.jans.as.model.jwt.JwtHeader in project jans by JanssenProject.

the class JwtAuthorizationRequest method getEncodedJwt.

public String getEncodedJwt(JSONObject jwks) throws Exception {
    String encodedJwt = null;
    if (keyEncryptionAlgorithm != null && blockEncryptionAlgorithm != null) {
        JweEncrypterImpl jweEncrypter;
        if (cryptoProvider != null && jwks != null) {
            PublicKey publicKey = cryptoProvider.getPublicKey(keyId, jwks, null);
            jweEncrypter = new JweEncrypterImpl(keyEncryptionAlgorithm, blockEncryptionAlgorithm, publicKey);
        } else {
            jweEncrypter = new JweEncrypterImpl(keyEncryptionAlgorithm, blockEncryptionAlgorithm, sharedKey.getBytes(StandardCharsets.UTF_8));
        }
        String header = ClientUtil.toPrettyJson(headerToJSONObject());
        String encodedHeader = base64urlencode(header);
        Jwe jwe = new Jwe();
        jwe.setHeader(new JwtHeader(encodedHeader));
        if (nestedPayload == null) {
            String claims = ClientUtil.toPrettyJson(payloadToJSONObject());
            String encodedClaims = base64urlencode(claims);
            jwe.setClaims(new JwtClaims(encodedClaims));
        } else {
            jwe.setSignedJWTPayload(nestedPayload);
        }
        jweEncrypter.encrypt(jwe);
        encodedJwt = jwe.toString();
    } else {
        if (cryptoProvider == null) {
            throw new Exception("The Crypto Provider cannot be null.");
        }
        JSONObject headerJsonObject = headerToJSONObject();
        JSONObject payloadJsonObject = payloadToJSONObject();
        String headerString = ClientUtil.toPrettyJson(headerJsonObject);
        String payloadString = ClientUtil.toPrettyJson(payloadJsonObject);
        String encodedHeader = base64urlencode(headerString);
        String encodedPayload = base64urlencode(payloadString);
        String signingInput = encodedHeader + "." + encodedPayload;
        String encodedSignature = cryptoProvider.sign(signingInput, keyId, sharedKey, signatureAlgorithm);
        encodedJwt = encodedHeader + "." + encodedPayload + "." + encodedSignature;
    }
    return encodedJwt;
}

Example 2 with JwtHeader

use of io.jans.as.model.jwt.JwtHeader in project jans by JanssenProject.

the class JwtState method getEncodedJwt.

public String getEncodedJwt(JSONObject jwks) throws Exception {
    String encodedJwt = null;
    if (keyEncryptionAlgorithm != null && blockEncryptionAlgorithm != null) {
        JweEncrypterImpl jweEncrypter;
        if (cryptoProvider != null && jwks != null) {
            PublicKey publicKey = cryptoProvider.getPublicKey(keyId, jwks, null);
            jweEncrypter = new JweEncrypterImpl(keyEncryptionAlgorithm, blockEncryptionAlgorithm, publicKey);
        } else {
            jweEncrypter = new JweEncrypterImpl(keyEncryptionAlgorithm, blockEncryptionAlgorithm, sharedKey.getBytes(StandardCharsets.UTF_8));
        }
        String header = ClientUtil.toPrettyJson(headerToJSONObject());
        String encodedHeader = Base64Util.base64urlencode(header.getBytes(StandardCharsets.UTF_8));
        String claims = ClientUtil.toPrettyJson(payloadToJSONObject());
        String encodedClaims = Base64Util.base64urlencode(claims.getBytes(StandardCharsets.UTF_8));
        Jwe jwe = new Jwe();
        jwe.setHeader(new JwtHeader(encodedHeader));
        jwe.setClaims(new JwtClaims(encodedClaims));
        jweEncrypter.encrypt(jwe);
        encodedJwt = jwe.toString();
    } else {
        JSONObject headerJsonObject = headerToJSONObject();
        JSONObject payloadJsonObject = payloadToJSONObject();
        String headerString = ClientUtil.toPrettyJson(headerJsonObject);
        String payloadString = ClientUtil.toPrettyJson(payloadJsonObject);
        String encodedHeader = Base64Util.base64urlencode(headerString.getBytes(StandardCharsets.UTF_8));
        String encodedPayload = Base64Util.base64urlencode(payloadString.getBytes(StandardCharsets.UTF_8));
        String signingInput = encodedHeader + "." + encodedPayload;
        String encodedSignature = cryptoProvider.sign(signingInput, keyId, sharedKey, signatureAlgorithm);
        encodedJwt = encodedHeader + "." + encodedPayload + "." + encodedSignature;
    }
    return encodedJwt;
}

Example 3 with JwtHeader

use of io.jans.as.model.jwt.JwtHeader in project jans by JanssenProject.

the class JweDecrypterImpl method decrypt.

@Override
public Jwe decrypt(String encryptedJwe) throws InvalidJweException {
    try {
        String[] jweParts = encryptedJwe.split("\\.");
        if (jweParts.length != 5) {
            throw new InvalidJwtException("Invalid JWS format.");
        }
        String encodedHeader = jweParts[0];
        String encodedEncryptedKey = jweParts[1];
        String encodedInitializationVector = jweParts[2];
        String encodedCipherText = jweParts[3];
        String encodedIntegrityValue = jweParts[4];
        Jwe jwe = new Jwe();
        jwe.setEncodedHeader(encodedHeader);
        jwe.setEncodedEncryptedKey(encodedEncryptedKey);
        jwe.setEncodedInitializationVector(encodedInitializationVector);
        jwe.setEncodedCiphertext(encodedCipherText);
        jwe.setEncodedIntegrityValue(encodedIntegrityValue);
        jwe.setHeader(new JwtHeader(encodedHeader));
        EncryptedJWT encryptedJwt = EncryptedJWT.parse(encryptedJwe);
        setKeyEncryptionAlgorithm(KeyEncryptionAlgorithm.fromName(jwe.getHeader().getClaimAsString(JwtHeaderName.ALGORITHM)));
        setBlockEncryptionAlgorithm(BlockEncryptionAlgorithm.fromName(jwe.getHeader().getClaimAsString(JwtHeaderName.ENCRYPTION_METHOD)));
        final KeyEncryptionAlgorithm keyEncryptionAlgorithm = getKeyEncryptionAlgorithm();
        Key encriptionKey = null;
        if (keyEncryptionAlgorithm == KeyEncryptionAlgorithm.RSA1_5 || keyEncryptionAlgorithm == KeyEncryptionAlgorithm.RSA_OAEP) {
            encriptionKey = privateKey;
        } else if (keyEncryptionAlgorithm == KeyEncryptionAlgorithm.A128KW || keyEncryptionAlgorithm == KeyEncryptionAlgorithm.A256KW) {
            if (sharedSymmetricKey == null) {
                throw new InvalidJweException("The shared symmetric key is null");
            }
            int keyLength = 16;
            if (keyEncryptionAlgorithm == KeyEncryptionAlgorithm.A256KW) {
                keyLength = 32;
            }
            if (sharedSymmetricKey.length != keyLength) {
                MessageDigest sha = MessageDigest.getInstance("SHA-256");
                sharedSymmetricKey = sha.digest(sharedSymmetricKey);
                sharedSymmetricKey = Arrays.copyOf(sharedSymmetricKey, keyLength);
            }
            encriptionKey = new SecretKeySpec(sharedSymmetricKey, 0, sharedSymmetricKey.length, "AES");
        } else {
            throw new InvalidJweException("The key encryption algorithm is not supported");
        }
        JWEDecrypter decrypter = DECRYPTER_FACTORY.createJWEDecrypter(encryptedJwt.getHeader(), encriptionKey);
        decrypter.getJCAContext().setProvider(SecurityProviderUtility.getInstance());
        encryptedJwt.decrypt(decrypter);
        final SignedJWT signedJWT = encryptedJwt.getPayload().toSignedJWT();
        if (signedJWT != null) {
            final Jwt jwt = Jwt.parse(signedJWT.serialize());
            jwe.setSignedJWTPayload(jwt);
            jwe.setClaims(jwt.getClaims());
        } else {
            final String base64encodedPayload = encryptedJwt.getPayload().toString();
            validateNestedJwt(base64encodedPayload);
            jwe.setClaims(new JwtClaims(base64encodedPayload));
        }
        return jwe;
    } catch (Exception e) {
        throw new InvalidJweException(e);
    }
}

Example 4 with JwtHeader

use of io.jans.as.model.jwt.JwtHeader in project jans by JanssenProject.

the class JweEncrypterImpl method encrypt.

@Override
public Jwe encrypt(Jwe jwe) throws InvalidJweException {
    try {
        JWEEncrypter encrypter = createJweEncrypter();
        if (jwe.getSignedJWTPayload() != null) {
            jwe.getHeader().setContentType(JwtType.JWT);
        }
        JWEObject jweObject = new JWEObject(JWEHeader.parse(jwe.getHeader().toJsonObject().toString()), createPayload(jwe));
        jweObject.encrypt(encrypter);
        String encryptedJwe = jweObject.serialize();
        String[] jweParts = encryptedJwe.split("\\.");
        if (jweParts.length != 5) {
            throw new InvalidJwtException("Invalid JWS format.");
        }
        String encodedHeader = jweParts[0];
        String encodedEncryptedKey = jweParts[1];
        String encodedInitializationVector = jweParts[2];
        String encodedCipherText = jweParts[3];
        String encodedIntegrityValue = jweParts[4];
        jwe.setEncodedHeader(encodedHeader);
        jwe.setEncodedEncryptedKey(encodedEncryptedKey);
        jwe.setEncodedInitializationVector(encodedInitializationVector);
        jwe.setEncodedCiphertext(encodedCipherText);
        jwe.setEncodedIntegrityValue(encodedIntegrityValue);
        jwe.setHeader(new JwtHeader(encodedHeader));
        return jwe;
    } catch (Exception e) {
        throw new InvalidJweException(e);
    }
}

Example 5 with JwtHeader

use of io.jans.as.model.jwt.JwtHeader in project jans by JanssenProject.

the class SoftwareStatement method headerToJSONObject.

protected JSONObject headerToJSONObject() throws InvalidJwtException {
    JwtHeader jwtHeader = new JwtHeader();
    jwtHeader.setAlgorithm(signatureAlgorithm);
    jwtHeader.setKeyId(keyId);
    return jwtHeader.toJsonObject();
}