Package org.jose4j.keys

Examples of org.jose4j.keys.PbkdfKey

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                        "{\"kty\":\"oct\",\"kid\":\"18ec08e1-bfa9-4d95-b205-2b4dd1d4321d\",\"use\":\"enc\",\"alg\":\"A256GCMKW\",\"k\":\"qC57l_uxcm7Nm3K-ct4GFjx8tM1U8CZ0NLBvdQstiS8\"}]}";

        // verify that we can decrypt it
        JsonWebEncryption jwe = new JsonWebEncryption();
        jwe.setCompactSerialization(exampleCompactSerialization);
        jwe.setKey(new PbkdfKey(password));
        assertThat(plaintext, equalTo(jwe.getPlaintextString()));

        // verify that we can reproduce it from the inputs
        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);
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                 "{\"kty\":\"oct\",\"kid\":\"18ec08e1-bfa9-4d95-b205-2b4dd1d4321d\",\"use\":\"enc\",\"alg\":\"A256GCMKW\",\"k\":\"qC57l_uxcm7Nm3K-ct4GFjx8tM1U8CZ0NLBvdQstiS8\"}]}";

        // verify that we can decrypt it
        JsonWebEncryption jwe = new JsonWebEncryption();
        jwe.setCompactSerialization(exampleCompactSerialization);
        jwe.setKey(new PbkdfKey(password));
        assertThat(plaintext, equalTo(jwe.getPlaintextString()));

        // verify that we can reproduce it from the inputs
        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);
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            {
                JsonWebEncryption encryptingJwe  = new JsonWebEncryption();
                encryptingJwe.setAlgorithmHeaderValue(alg);
                encryptingJwe.setEncryptionMethodHeaderParameter(enc);
                encryptingJwe.setPayload(plaintext);
                encryptingJwe.setKey(new PbkdfKey(password));
                String compactSerialization = encryptingJwe.getCompactSerialization();

                JsonWebEncryption decryptingJwe = new JsonWebEncryption();
                decryptingJwe.setCompactSerialization(compactSerialization);
                decryptingJwe.setKey(new PbkdfKey(password));
                assertThat(plaintext, equalTo(decryptingJwe.getPayload()));
            }
        }
    }
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    {
        JsonWebEncryption encryptingJwe  = new JsonWebEncryption();
        encryptingJwe.setAlgorithmHeaderValue(PBES2_HS256_A128KW);
        encryptingJwe.setEncryptionMethodHeaderParameter(AES_128_CBC_HMAC_SHA_256);
        encryptingJwe.setPayload("meh");
        PbkdfKey key = new PbkdfKey("passtheword");
        encryptingJwe.setKey(key);
        String compactSerialization = encryptingJwe.getCompactSerialization();
        System.out.println(compactSerialization);

        JsonWebEncryption decryptingJwe = new JsonWebEncryption();
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        Pbes2HmacShaWithAesKeyWrapAlgorithm pbes2 = new Pbes2HmacShaWithAesKeyWrapAlgorithm.HmacSha256Aes128();

        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));
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        encryptingJwe.getHeaders().setObjectHeaderValue(HeaderParameterNames.PBES2_ITERATION_COUNT, iterationCount);

        encryptingJwe.setAlgorithmHeaderValue(PBES2_HS384_A192KW);
        encryptingJwe.setEncryptionMethodHeaderParameter(AES_192_CBC_HMAC_SHA_384);
        encryptingJwe.setPayload(plaintext);
        encryptingJwe.setKey(new PbkdfKey(password));
        String compactSerialization = encryptingJwe.getCompactSerialization();

        JsonWebEncryption decryptingJwe = new JsonWebEncryption();
        decryptingJwe.setCompactSerialization(compactSerialization);
        decryptingJwe.setKey(new PbkdfKey(password));
        assertThat(plaintext, equalTo(decryptingJwe.getPayload()));

        String saltInputStringFromHeader = decryptingJwe.getHeader(HeaderParameterNames.PBES2_SALT_INPUT);
        assertThat(saltInputString, equalTo(saltInputStringFromHeader));
        assertThat(saltByteLength, equalTo(Base64Url.decode(saltInputStringFromHeader).length));
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                    "0HFmhOzsQ98nNWJjIHkR7A";

    @Test
    public void decryptExample() throws JoseException
    {
        PbkdfKey key = new PbkdfKey(PASSWORD);
        JsonWebEncryption jwe = new JsonWebEncryption();
        jwe.setCompactSerialization(CS);
        jwe.setKey(key);
        String payload = jwe.getPayload();
        PublicJsonWebKey jwk = PublicJsonWebKey.Factory.newPublicJwk(payload);
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                "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);

        byte[] expectedDerived = ByteUtil.convertUnsignedToSignedTwosComp(new int[]{110, 171, 169, 92, 129, 92, 109, 117,
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Related Classes of org.jose4j.keys.PbkdfKey

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