Package org.jose4j.jwx

Examples of org.jose4j.jwx.Headers

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                " \"d\":\"0_NxaRPUMQoAJt50Gz8YiTr8gRTwyEaCumd-MToTmIo\"\n" +
                "}";

        PublicJsonWebKey ephemeralJwk = PublicJsonWebKey.Factory.newPublicJwk(ephemeralJwkJson);

        Headers headers = new Headers();

        headers.setStringHeaderValue(HeaderParameterNames.ALGORITHM, KeyManagementAlgorithmIdentifiers.ECDH_ES);
        headers.setStringHeaderValue(HeaderParameterNames.ENCRYPTION_METHOD, ContentEncryptionAlgorithmIdentifiers.AES_128_GCM);

        headers.setStringHeaderValue(HeaderParameterNames.AGREEMENT_PARTY_U_INFO, "QWxpY2U");
        headers.setStringHeaderValue(HeaderParameterNames.AGREEMENT_PARTY_V_INFO, "Qm9i");

        headers.setJwkHeaderValue(HeaderParameterNames.EPHEMERAL_PUBLIC_KEY, ephemeralJwk);

        EcdhKeyAgreementAlgorithm ecdhKeyAgreementAlgorithm = new EcdhKeyAgreementAlgorithm();

        ContentEncryptionKeyDescriptor cekDesc = new ContentEncryptionKeyDescriptor(ByteUtil.byteLength(128), AesKey.ALGORITHM);

        PublicKey pubKey = receiverJwk.getPublicKey();
        ContentEncryptionKeys contentEncryptionKeys = ecdhKeyAgreementAlgorithm.manageForEncrypt(pubKey, cekDesc, headers, ephemeralJwk);

        assertTrue(contentEncryptionKeys.getEncryptedKey().length == 0);
        Base64Url base64Url = new Base64Url();
        assertEquals("VqqN6vgjbSBcIijNcacQGg", base64Url.base64UrlEncode(contentEncryptionKeys.getContentEncryptionKey()));

        Headers receivedHeaders = new Headers();
        receivedHeaders.setFullHeaderAsJsonString(headers.getFullHeaderAsJsonString());

        Key key = ecdhKeyAgreementAlgorithm.manageForDecrypt(receiverJwk.getPrivateKey(), null, cekDesc, receivedHeaders);
        assertEquals("VqqN6vgjbSBcIijNcacQGg", base64Url.base64UrlEncode(key.getEncoded()));
    }
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                " \"y\":\"n2oj0Z6EYgzRDmeROILD4fp2zAMGLQzmI8G1k5nsev0\"\n" +
                "}";

        PublicJsonWebKey ephemeralJwk = PublicJsonWebKey.Factory.newPublicJwk(ephemeralJwkJson);

        Headers headers = new Headers();

        headers.setStringHeaderValue(HeaderParameterNames.ALGORITHM, KeyManagementAlgorithmIdentifiers.ECDH_ES);
        headers.setStringHeaderValue(HeaderParameterNames.ENCRYPTION_METHOD, ContentEncryptionAlgorithmIdentifiers.AES_128_CBC_HMAC_SHA_256);

        headers.setJwkHeaderValue(HeaderParameterNames.EPHEMERAL_PUBLIC_KEY, ephemeralJwk);

        EcdhKeyAgreementAlgorithm ecdhKeyAgreementAlgorithm = new EcdhKeyAgreementAlgorithm();

        ContentEncryptionKeyDescriptor cekDesc = new ContentEncryptionKeyDescriptor(ByteUtil.byteLength(256), AesKey.ALGORITHM);
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        jwe = new JsonWebEncryption();
        jwe.setPlaintext(plaintext);
        jwe.setKey(new PbkdfKey(password));

        jwe.setAlgorithmHeaderValue(KeyManagementAlgorithmIdentifiers.PBES2_HS512_A256KW);
        Headers headers = jwe.getHeaders();
        headers.setStringHeaderValue(HeaderParameterNames.PBES2_SALT_INPUT, "8Q1SzinasR3xchYz6ZZcHA");
        headers.setObjectHeaderValue(HeaderParameterNames.PBES2_ITERATION_COUNT, 8192L);
        headers.setStringHeaderValue("cty", "jwk-set+json");
        jwe.setEncryptionMethodHeaderParameter(ContentEncryptionAlgorithmIdentifiers.AES_128_CBC_HMAC_SHA_256);

        // set the IV and cek per the example (you wouldn't usually do this but it makes the output
        // more deterministic so it can be compared to the example)
        jwe.setEncodedContentEncryptionKey("uwsjJXaBK407Qaf0_zpcpmr1Cs0CC50hIUEyGNEt3m0");
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        jwe = new JsonWebEncryption();
        jwe.setPlaintext(plaintext);
        jwe.setKey(new PbkdfKey(password));

        jwe.setAlgorithmHeaderValue(KeyManagementAlgorithmIdentifiers.PBES2_HS256_A128KW);
        Headers headers = jwe.getHeaders();
        headers.setStringHeaderValue(HeaderParameterNames.PBES2_SALT_INPUT, "8Q1SzinasR3xchYz6ZZcHA");
        headers.setObjectHeaderValue(HeaderParameterNames.PBES2_ITERATION_COUNT, 8192L);
        headers.setStringHeaderValue("cty", "jwk-set+json");
        jwe.setEncryptionMethodHeaderParameter(ContentEncryptionAlgorithmIdentifiers.AES_128_CBC_HMAC_SHA_256);

        // set the IV and cek per the example (you wouldn't usually do this but it makes the output
        // more deterministic so it can be compared to the example)
        jwe.setEncodedContentEncryptionKey("uwsjJXaBK407Qaf0_zpcpmr1Cs0CC50hIUEyGNEt3m0");
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        JsonWebEncryption decryptingJwe = new JsonWebEncryption();
        decryptingJwe.setCompactSerialization(compactSerialization);
        decryptingJwe.setKey(key);
        decryptingJwe.getPayload();
        Headers headers = decryptingJwe.getHeaders();

        Long iterationCount = headers.getLongHeaderValue(HeaderParameterNames.PBES2_ITERATION_COUNT);
        assertTrue(iterationCount >= MINIMUM_ITERAION_COUNT);

        String saltInputString = headers.getStringHeaderValue(HeaderParameterNames.PBES2_SALT_INPUT);
        Base64Url b = new Base64Url();
        byte[] saltInput = b.base64UrlDecode(saltInputString);
        assertTrue(saltInput.length >= MINIMUM_SALT_BYTE_LENGTH);
    }
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        assertTrue(pbes2.getDefaultIterationCount() >= MINIMUM_ITERAION_COUNT);
        assertTrue(pbes2.getDefaultSaltByteLength() >= MINIMUM_SALT_BYTE_LENGTH);

        PbkdfKey key = new PbkdfKey("a password");

        Headers headers = new Headers();
        Key derivedKey = pbes2.deriveForEncrypt(key, headers);
        assertThat(derivedKey.getEncoded().length, equalTo(16));

        String saltInputString = headers.getStringHeaderValue(HeaderParameterNames.PBES2_SALT_INPUT);
        byte[] saltInput = Base64Url.decode(saltInputString);
        assertThat(saltInput.length, equalTo(pbes2.getDefaultSaltByteLength()));
        Long iterationCount = headers.getLongHeaderValue(HeaderParameterNames.PBES2_ITERATION_COUNT);
        assertThat(iterationCount, equalTo(pbes2.getDefaultIterationCount()));

        Pbes2HmacShaWithAesKeyWrapAlgorithm newPbes2 = new Pbes2HmacShaWithAesKeyWrapAlgorithm.HmacSha256Aes128();
        long newDefaultIterationCount = 1024;
        newPbes2.setDefaultIterationCount(newDefaultIterationCount);

        int newDefaultSaltByteLength = 16;
        newPbes2.setDefaultSaltByteLength(newDefaultSaltByteLength);

        headers = new Headers();
        derivedKey = newPbes2.deriveForEncrypt(key, headers);
        saltInputString = headers.getStringHeaderValue(HeaderParameterNames.PBES2_SALT_INPUT);
        saltInput = Base64Url.decode(saltInputString);
        assertThat(saltInput.length, equalTo(newDefaultSaltByteLength));
        iterationCount = headers.getLongHeaderValue(HeaderParameterNames.PBES2_ITERATION_COUNT);
        assertThat(iterationCount, equalTo(newDefaultIterationCount));

        assertThat(derivedKey.getEncoded().length, equalTo(16));
    }
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        String encodedHeader = "eyJhbGciOiJQQkVTMi1IUzI1NitBMTI4S1ciLCJwMnMiOiIyV0NUY0paMVJ2ZF9DSn" +
                "VKcmlwUTF3IiwicDJjIjo0MDk2LCJlbmMiOiJBMTI4Q0JDLUhTMjU2IiwiY3R5Ijoi" +
                "andrK2pzb24ifQ";
        Base64Url base64url = new Base64Url();
        Headers headers = new Headers();
        headers.setFullHeaderAsJsonString(base64url.base64UrlDecodeToUtf8String(encodedHeader));

        PbkdfKey pbkdfKey = new PbkdfKey(PASSWORD);

        Pbes2HmacShaWithAesKeyWrapAlgorithm pbesAlg = new Pbes2HmacShaWithAesKeyWrapAlgorithm.HmacSha256Aes128();
        Key derivedKey = pbesAlg.deriveForEncrypt(pbkdfKey, headers);
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Related Classes of org.jose4j.jwx.Headers

  • org.jose4j.cookbook.JoseCookbookTest
  • org.jose4j.jwe.EcdhKeyAgreementAlgorithmTest
  • org.jose4j.jwe.Pbes2ExampleEncryptedRSAPrivateKeyJwkAppendixCTest
  • org.jose4j.jwe.Pbes2HmacShaWithAesKeyWrapAlgorithmTest
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