Examples with CipherOutputStream javax.crypto.CipherOutputStream used on opensource projects

Example 31 with CipherOutputStream

use of javax.crypto.CipherOutputStream in project robovm by robovm.

the class CipherOutputStream1Test method testWrite2.

/**
     * write(byte[] b) method testing. Tests that method writes correct values
     * to the underlying output stream.
     */
public void testWrite2() throws Exception {
    byte[] data = new byte[] { -127, -100, -50, -10, -1, 0, 1, 10, 50, 127 };
    TestOutputStream tos = new TestOutputStream();
    CipherOutputStream cos = new CipherOutputStream(tos, new NullCipher());
    cos.write(data);
    cos.flush();
    byte[] result = tos.toByteArray();
    if (!Arrays.equals(result, data)) {
        fail("CipherOutputStream wrote incorrect data.");
    }
    try {
        cos.write(null);
        fail("NullPointerException expected");
    } catch (NullPointerException e) {
    //expected
    }
}

Example 32 with CipherOutputStream

use of javax.crypto.CipherOutputStream in project robovm by robovm.

the class CipherOutputStreamTest method test_close.

/**
     * javax.crypto.CipherOutputStream#close()
     */
public void test_close() throws Exception {
    // regression test for HARMONY-1139
    try {
        new CipherOutputStream((OutputStream) null, Cipher.getInstance("DES/CBC/PKCS5Padding")).close();
        fail("IllegalStateException expected");
    } catch (IllegalStateException e) {
    // expected
    }
    CipherOutputStream ch = new CipherOutputStream((OutputStream) null) {
    };
    try {
        new CipherOutputStream(ch, Cipher.getInstance("DES/CBC/PKCS5Padding")).close();
        fail("IllegalStateException expected");
    } catch (IllegalStateException e) {
    // expected
    }
}

Example 33 with CipherOutputStream

use of javax.crypto.CipherOutputStream in project jdk8u_jdk by JetBrains.

the class CipherHelper method encryptData.

void encryptData(WrapToken token, byte[] confounder, byte[] plaintext, int start, int len, byte[] padding, OutputStream os) throws GSSException, IOException {
    switch(sealAlg) {
        case MessageToken.SEAL_ALG_DES:
            // Encrypt on the fly and write
            Cipher des = getInitializedDes(true, getDesEncryptionKey(keybytes), ZERO_IV);
            CipherOutputStream cos = new CipherOutputStream(os, des);
            // debug(getHexBytes(confounder, confounder.length));
            cos.write(confounder);
            // debug(" " + getHexBytes(plaintext, start, len));
            cos.write(plaintext, start, len);
            // debug(" " + getHexBytes(padding, padding.length));
            cos.write(padding);
            break;
        case MessageToken.SEAL_ALG_DES3_KD:
            byte[] ctext = des3KdEncrypt(confounder, plaintext, start, len, padding);
            // Write to stream
            os.write(ctext);
            break;
        case MessageToken.SEAL_ALG_ARCFOUR_HMAC:
            byte[] ciphertext = arcFourEncrypt(token, confounder, plaintext, start, len, padding);
            // Write to stream
            os.write(ciphertext);
            break;
        default:
            throw new GSSException(GSSException.FAILURE, -1, "Unsupported seal algorithm: " + sealAlg);
    }
}

Example 34 with CipherOutputStream

use of javax.crypto.CipherOutputStream in project jdk8u_jdk by JetBrains.

the class WrongAAD method decryptWithWrongAAD.

/*
     * Attempt to decrypt the cipher text using Cipher object
     * initialized with some fake AAD.
     */
private void decryptWithWrongAAD() throws Exception {
    System.out.println("decrypt with wrong AAD");
    // initialize it with wrong AAD to get an exception during decryption
    Cipher decryptCipher = createCipher(Cipher.DECRYPT_MODE, encryptCipher.getParameters());
    byte[] someAAD = Helper.generateBytes(AAD_SIZE + 1);
    decryptCipher.updateAAD(someAAD);
    // init output stream
    try (ByteArrayOutputStream baOutput = new ByteArrayOutputStream();
        CipherOutputStream ciOutput = new CipherOutputStream(baOutput, decryptCipher)) {
        if (decrypt(ciOutput, baOutput)) {
            throw new RuntimeException("A decryption has been perfomed successfully in" + " spite of the decrypt Cipher has been" + " initialized with fake AAD");
        }
    }
    System.out.println("Passed");
}

Example 35 with CipherOutputStream

use of javax.crypto.CipherOutputStream in project jdk8u_jdk by JetBrains.

the class WrongAAD method decryptWithEmptyAAD.

/*
     * Attempt to decrypt a cipher text using Cipher object
     * initialized without AAD used for encryption.
     */
private void decryptWithEmptyAAD() throws Exception {
    System.out.println("decryptWithEmptyAAD() started");
    // initialize it with empty AAD to get exception during decryption
    Cipher decryptCipher = createCipher(Cipher.DECRYPT_MODE, encryptCipher.getParameters());
    try (ByteArrayOutputStream baOutput = new ByteArrayOutputStream();
        CipherOutputStream ciOutput = new CipherOutputStream(baOutput, decryptCipher)) {
        if (decrypt(ciOutput, baOutput)) {
            throw new RuntimeException("Decryption has been perfomed successfully in" + " spite of the decrypt Cipher has NOT been" + " initialized with AAD");
        }
    }
    System.out.println("decryptWithEmptyAAD() passed");
}