Examples with IvParameterSpec javax.crypto.spec.IvParameterSpec used on opensource projects

Example 86 with IvParameterSpec

use of javax.crypto.spec.IvParameterSpec in project jdk8u_jdk by JetBrains.

the class Des3DkCrypto method getCipher.

protected Cipher getCipher(byte[] key, byte[] ivec, int mode) throws GeneralSecurityException {
    // NoSuchAlgorithException
    SecretKeyFactory factory = SecretKeyFactory.getInstance("desede");
    // InvalidKeyException
    KeySpec spec = new DESedeKeySpec(key, 0);
    // InvalidKeySpecException
    SecretKey secretKey = factory.generateSecret(spec);
    // IV
    if (ivec == null) {
        ivec = ZERO_IV;
    }
    // NoSuchAlgorithmException, NoSuchPaddingException
    // NoSuchProviderException
    Cipher cipher = Cipher.getInstance("DESede/CBC/NoPadding");
    IvParameterSpec encIv = new IvParameterSpec(ivec, 0, ivec.length);
    // InvalidKeyException, InvalidAlgorithParameterException
    cipher.init(mode, secretKey, encIv);
    return cipher;
}

Example 87 with IvParameterSpec

use of javax.crypto.spec.IvParameterSpec in project jdk8u_jdk by JetBrains.

the class CICODESFuncTest method runTest.

private static void runTest(Provider p, String algo, String mo, String pad, ReadModel whichRead) throws GeneralSecurityException, IOException {
    // Do initialization
    byte[] plainText = TestUtilities.generateBytes(TEXT_LENGTH);
    byte[] iv = TestUtilities.generateBytes(IV_LENGTH);
    AlgorithmParameterSpec aps = new IvParameterSpec(iv);
    try {
        KeyGenerator kg = KeyGenerator.getInstance(algo, p);
        out.println(algo + "/" + mo + "/" + pad + "/" + whichRead);
        SecretKey key = kg.generateKey();
        Cipher ci1 = Cipher.getInstance(algo + "/" + mo + "/" + pad, p);
        if ("CFB72".equalsIgnoreCase(mo) || "OFB20".equalsIgnoreCase(mo)) {
            throw new RuntimeException("NoSuchAlgorithmException not throw when mode" + " is CFB72 or OFB20");
        }
        Cipher ci2 = Cipher.getInstance(algo + "/" + mo + "/" + pad, p);
        if ("ECB".equalsIgnoreCase(mo)) {
            ci1.init(Cipher.ENCRYPT_MODE, key);
            ci2.init(Cipher.DECRYPT_MODE, key);
        } else {
            ci1.init(Cipher.ENCRYPT_MODE, key, aps);
            ci2.init(Cipher.DECRYPT_MODE, key, aps);
        }
        ByteArrayOutputStream baOutput = new ByteArrayOutputStream();
        try (CipherInputStream cInput = new CipherInputStream(new ByteArrayInputStream(plainText), ci1);
            CipherOutputStream ciOutput = new CipherOutputStream(baOutput, ci2)) {
            // Read from the input and write to the output using 2 types
            // of buffering : byte[] and int
            whichRead.read(cInput, ciOutput, ci1, plainText.length);
        }
        // Verify input and output are same.
        if (!Arrays.equals(plainText, baOutput.toByteArray())) {
            throw new RuntimeException("Test failed due to compare fail ");
        }
    } catch (NoSuchAlgorithmException nsaEx) {
        if ("CFB72".equalsIgnoreCase(mo) || "OFB20".equalsIgnoreCase(mo)) {
            out.println("NoSuchAlgorithmException is expected for CFB72 and OFB20");
        } else {
            throw new RuntimeException("Unexpected exception testing: " + algo + "/" + mo + "/" + pad + "/" + whichRead, nsaEx);
        }
    }
}

Example 88 with IvParameterSpec

use of javax.crypto.spec.IvParameterSpec in project jdk8u_jdk by JetBrains.

the class PBKDF2Wrapper method initCipher.

/**
     * Initiate the Cipher object for PBKDF2 algorithm using given "mode".
     *
     * @param mode Cipher mode: encrypt or decrypt
     * @return Cipher object for PBKDF2 algorithm
     * @throws GeneralSecurityException all security exceptions are thrown.
     */
@Override
protected Cipher initCipher(int mode) throws GeneralSecurityException {
    Provider provider = Security.getProvider("SunJCE");
    if (provider == null) {
        throw new RuntimeException("SunJCE provider does not exist.");
    }
    // Generate secret key
    PBEKeySpec pbeKeySpec = new PBEKeySpec(password.toCharArray(), salt, DEFAULT_ITERATION, PKDF2_DEFAULT_KEY_LEN);
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(baseAlgo);
    SecretKey key = keyFactory.generateSecret(pbeKeySpec);
    // get Cipher instance
    Cipher cipher = Cipher.getInstance(CIPHER_TRANSFORMATION, provider);
    cipher.init(mode, new SecretKeySpec(key.getEncoded(), KEY_ALGORITHM), new IvParameterSpec(iv));
    return cipher;
}

Example 89 with IvParameterSpec

use of javax.crypto.spec.IvParameterSpec in project jdk8u_jdk by JetBrains.

the class TestSameBuffer method runTest.

public void runTest(String algo, String mo, String pad) throws Exception {
    Cipher ci = null;
    byte[] iv = null;
    AlgorithmParameterSpec aps = null;
    SecretKey key = null;
    try {
        // Initialization
        Random rdm = new Random();
        byte[] plainText = new byte[128];
        rdm.nextBytes(plainText);
        // keep the plain text
        byte[] tmpText = new byte[plainText.length];
        for (int i = 0; i < plainText.length; i++) {
            tmpText[i] = plainText[i];
        }
        ci = Cipher.getInstance(algo + "/" + mo + "/" + pad, PROVIDER);
        KeyGenerator kg = KeyGenerator.getInstance(algo, PROVIDER);
        kg.init(KEY_LENGTH);
        key = kg.generateKey();
        // encrypt
        ci.init(Cipher.ENCRYPT_MODE, key);
        int offset = ci.update(plainText, 0, plainText.length, plainText, 0);
        ci.doFinal(plainText, offset);
        if (!mo.equalsIgnoreCase("ECB")) {
            iv = ci.getIV();
            aps = new IvParameterSpec(iv);
        } else {
            aps = null;
        }
        ci.init(Cipher.DECRYPT_MODE, key, aps);
        byte[] recoveredText = new byte[ci.getOutputSize(plainText.length)];
        ci.doFinal(plainText, 0, plainText.length, recoveredText);
        // Comparison
        if (!java.util.Arrays.equals(tmpText, recoveredText)) {
            System.out.println("Original: ");
            dumpBytes(plainText);
            System.out.println("Recovered: ");
            dumpBytes(recoveredText);
            throw new RuntimeException("Original text is not equal with recovered text, with mode:" + mo);
        }
    } catch (NoSuchAlgorithmException e) {
        //CFB7 and CFB150 are for negative testing
        if (!mo.equalsIgnoreCase("CFB7") && !mo.equalsIgnoreCase("CFB150")) {
            System.out.println("Unexpected NoSuchAlgorithmException with mode: " + mo);
            throw new RuntimeException("Test failed!");
        }
    } catch (NoSuchProviderException | NoSuchPaddingException | InvalidKeyException | InvalidAlgorithmParameterException | ShortBufferException | IllegalBlockSizeException | BadPaddingException e) {
        System.out.println("Test failed!");
        throw e;
    }
}

Example 90 with IvParameterSpec

use of javax.crypto.spec.IvParameterSpec in project jdk8u_jdk by JetBrains.

the class Padding method runTest.

public void runTest(String algo, String mo, String pad) throws Exception {
    Cipher ci = null;
    byte[] iv = null;
    AlgorithmParameterSpec aps = null;
    SecretKey key = null;
    try {
        Random rdm = new Random();
        byte[] plainText;
        ci = Cipher.getInstance(algo + "/" + mo + "/" + pad, PROVIDER);
        KeyGenerator kg = KeyGenerator.getInstance(algo, PROVIDER);
        kg.init(KEY_LENGTH);
        key = kg.generateKey();
        for (int i = 0; i < 15; i++) {
            plainText = new byte[1600 + i + 1];
            rdm.nextBytes(plainText);
            if (!mo.equalsIgnoreCase("GCM")) {
                ci.init(Cipher.ENCRYPT_MODE, key, aps);
            } else {
                ci.init(Cipher.ENCRYPT_MODE, key);
            }
            byte[] cipherText = new byte[ci.getOutputSize(plainText.length)];
            int offset = ci.update(plainText, 0, plainText.length, cipherText, 0);
            ci.doFinal(cipherText, offset);
            if (!mo.equalsIgnoreCase("ECB")) {
                iv = ci.getIV();
                aps = new IvParameterSpec(iv);
            } else {
                aps = null;
            }
            if (!mo.equalsIgnoreCase("GCM")) {
                ci.init(Cipher.DECRYPT_MODE, key, aps);
            } else {
                ci.init(Cipher.DECRYPT_MODE, key, ci.getParameters());
            }
            byte[] recoveredText = new byte[ci.getOutputSize(cipherText.length)];
            int len = ci.doFinal(cipherText, 0, cipherText.length, recoveredText);
            byte[] tmp = new byte[len];
            for (int j = 0; j < len; j++) {
                tmp[j] = recoveredText[j];
            }
            if (!java.util.Arrays.equals(plainText, tmp)) {
                System.out.println("Original: ");
                dumpBytes(plainText);
                System.out.println("Recovered: ");
                dumpBytes(tmp);
                throw new RuntimeException("Original text is not equal with recovered text, with mode:" + mo);
            }
        }
    } catch (NoSuchAlgorithmException e) {
        //CFB7 and OFB150 are for negative testing
        if (!mo.equalsIgnoreCase("CFB7") && !mo.equalsIgnoreCase("OFB150")) {
            System.out.println("Unexpected NoSuchAlgorithmException with mode: " + mo);
            throw new RuntimeException("Test failed!");
        }
    } catch (NoSuchProviderException | NoSuchPaddingException | InvalidKeyException | InvalidAlgorithmParameterException | ShortBufferException | IllegalBlockSizeException | BadPaddingException e) {
        System.out.println("Test failed!");
        throw e;
    }
}