Examples with CipherSpec org.syncany.crypto.CipherSpec used on opensource projects

Example 1 with CipherSpec

use of org.syncany.crypto.CipherSpec in project syncany by syncany.

the class ApplicationLink method createEncryptedLink.

public String createEncryptedLink(SaltedSecretKey masterKey) throws Exception {
    byte[] plaintextStorageXml = getPlaintextStorageXml();
    // TODO [low] Shouldn't this be the same as the application?!
    List<CipherSpec> cipherSpecs = CipherSpecs.getDefaultCipherSpecs();
    byte[] masterKeySalt = masterKey.getSalt();
    byte[] encryptedPluginBytes = CipherUtil.encrypt(new ByteArrayInputStream(plaintextStorageXml), cipherSpecs, masterKey);
    String masterKeySaltEncodedStr = Base58.encode(masterKeySalt);
    String encryptedEncodedPlugin = Base58.encode(encryptedPluginBytes);
    String applicationLink = String.format(LINK_FORMAT_ENCRYPTED, masterKeySaltEncodedStr, encryptedEncodedPlugin);
    if (shortUrl) {
        return shortenLink(applicationLink);
    } else {
        return applicationLink;
    }
}

Example 2 with CipherSpec

use of org.syncany.crypto.CipherSpec in project syncany by syncany.

the class CipherTransformer method initCipherSpecs.

private void initCipherSpecs(String cipherSpecListStr) throws Exception {
    String[] cipherSpecIdStrs = cipherSpecListStr.split(",");
    for (String cipherSpecIdStr : cipherSpecIdStrs) {
        int cipherSpecId = Integer.parseInt(cipherSpecIdStr);
        CipherSpec cipherSpec = CipherSpecs.getCipherSpec(cipherSpecId);
        if (cipherSpec == null) {
            throw new Exception("Cannot find cipher suite with ID '" + cipherSpecId + "'");
        }
        cipherSpecs.add(cipherSpec);
    }
}

Example 3 with CipherSpec

use of org.syncany.crypto.CipherSpec in project syncany by syncany.

the class FrameworkCombinationTest method fillCombinations.

private void fillCombinations() throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException {
    // MultiChunks
    List<MultiChunker> multiChunkers = new LinkedList<MultiChunker>();
    int[] multiChunkSizes = new int[] { 250000, 500000 };
    for (int i = 0; i < multiChunkSizes.length; i++) {
        // multiChunkers.add(new CustomMultiChunker(multiChunkSizes[i]));
        multiChunkers.add(new ZipMultiChunker(multiChunkSizes[i]));
    }
    // Chunks
    List<Chunker> chunkers = new LinkedList<Chunker>();
    int[] chunkSizes = new int[] { 8000, 16000 };
    String[] digestAlgs = new String[] { /*"MD5" ,*/
    "SHA1" };
    String[] fingerprinters = new String[] { "Adler32" /*, "Plain", "Rabin"*/
    };
    for (int i = 0; i < chunkSizes.length; i++) {
        for (int j = 0; j < digestAlgs.length; j++) {
            for (int k = 0; k < fingerprinters.length; k++) {
                chunkers.add(new TttdChunker(chunkSizes[i], TttdChunker.DEFAULT_WINDOW_SIZE, digestAlgs[j], fingerprinters[k]));
            }
        }
    }
    // Compression/Encryption
    List<CipherSpec> cipherSpecs = new ArrayList<CipherSpec>();
    cipherSpecs.add(CipherSpecs.getCipherSpec(1));
    cipherSpecs.add(CipherSpecs.getCipherSpec(2));
    List<Transformer> transformerChains = new LinkedList<Transformer>();
    transformerChains.add(new NoTransformer());
    transformerChains.add(new GzipTransformer());
    transformerChains.add(new CipherTransformer(cipherSpecs, masterKey));
    transformerChains.add(new GzipTransformer(new CipherTransformer(cipherSpecs, masterKey)));
    for (MultiChunker multiChunker : multiChunkers) {
        for (Transformer transformer : transformerChains) {
            for (Chunker chunker : chunkers) {
                String configName = multiChunker + "/" + chunker + "/" + transformer;
                combinations.add(new FrameworkCombination(configName, chunker, multiChunker, transformer));
            }
        }
    }
}

Example 4 with CipherSpec

use of org.syncany.crypto.CipherSpec in project syncany by syncany.

the class CipherUtilTest method testCreateDerivedKeys.

@Test
public void testCreateDerivedKeys() throws InvalidKeySpecException, NoSuchAlgorithmException, NoSuchProviderException {
    SaltedSecretKey masterKey = createDummyMasterKey();
    CipherSpec cipherSpec = CipherSpecs.getCipherSpec(CipherSpecs.AES_128_GCM);
    byte[] derivedKeySalt1 = new byte[] { 1, 2, 3 };
    byte[] derivedKeySalt2 = new byte[] { 1, 2, 3, 4 };
    SaltedSecretKey derivedKey1 = CipherUtil.createDerivedKey(masterKey, derivedKeySalt1, cipherSpec);
    SaltedSecretKey derivedKey2 = CipherUtil.createDerivedKey(masterKey, derivedKeySalt2, cipherSpec);
    logger.log(Level.INFO, "- Derived key 1: " + StringUtil.toHex(derivedKey1.getEncoded()));
    logger.log(Level.INFO, "      with salt: " + StringUtil.toHex(derivedKey1.getSalt()));
    logger.log(Level.INFO, "- Derived key 2: " + StringUtil.toHex(derivedKey2.getEncoded()));
    logger.log(Level.INFO, "      with salt: " + StringUtil.toHex(derivedKey2.getSalt()));
    assertEquals(128 / 8, derivedKey1.getEncoded().length);
    assertEquals(128 / 8, derivedKey2.getEncoded().length);
    assertFalse(Arrays.equals(derivedKey1.getSalt(), derivedKey2.getSalt()));
    assertFalse(Arrays.equals(derivedKey1.getEncoded(), derivedKey2.getEncoded()));
}

Example 5 with CipherSpec

use of org.syncany.crypto.CipherSpec in project syncany by syncany.

the class CipherSessionTest method testCipherSessionWriteKeyReuseCountOfTwo.

@Test
public void testCipherSessionWriteKeyReuseCountOfTwo() throws Exception {
    SaltedSecretKey masterKey = createDummyMasterKey();
    CipherSession cipherSession = new CipherSession(masterKey, 999, 2);
    CipherSpec cipherSpecAes128 = CipherSpecs.getCipherSpec(CipherSpecs.AES_128_GCM);
    CipherSpec cipherSpecTwofish128 = CipherSpecs.getCipherSpec(CipherSpecs.TWOFISH_128_GCM);
    SaltedSecretKey writeSecretKey1Aes128 = cipherSession.getWriteSecretKey(cipherSpecAes128);
    SaltedSecretKey writeSecretKey2Aes128 = cipherSession.getWriteSecretKey(cipherSpecAes128);
    SaltedSecretKey writeSecretKey3Aes128 = cipherSession.getWriteSecretKey(cipherSpecAes128);
    SaltedSecretKey writeSecretKey1Twofish128 = cipherSession.getWriteSecretKey(cipherSpecTwofish128);
    SaltedSecretKey writeSecretKey2Twofish128 = cipherSession.getWriteSecretKey(cipherSpecTwofish128);
    SaltedSecretKey writeSecretKey3Twofish128 = cipherSession.getWriteSecretKey(cipherSpecTwofish128);
    assertEquals(writeSecretKey1Aes128, writeSecretKey2Aes128);
    assertNotSame(writeSecretKey1Aes128, writeSecretKey3Aes128);
    assertEquals(writeSecretKey1Twofish128, writeSecretKey2Twofish128);
    assertNotSame(writeSecretKey1Twofish128, writeSecretKey3Twofish128);
    assertNotSame(writeSecretKey1Aes128, writeSecretKey1Twofish128);
}