* @return a decryption cipher
     */
    protected Cipher pollDecryptoCipher() {
        Cipher cipher = decryptoQueue.poll();
        if (cipher == null) {
            try {
                final SecretKeySpec sksSpec = new SecretKeySpec(key.getBytes(charsetName), algorithm);
                cipher = Cipher.getInstance(algorithm);
                cipher.init(Cipher.DECRYPT_MODE, sksSpec);

            final Cipher cipher = Cipher.getInstance(transformation);
            final GCMParameterSpec gcmSpec = new GCMParameterSpec(getAuthTagLength() * 8, nonce);

            cipher.init(encrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, keySpec, gcmSpec);
            return cipher;
        } finally {
            // Guaranteed cleanup of all key material
            if (key != null) {

        cipher.setKey("mySecretKey");

        final String original = "";
        final String encrypted = cipher.encryptText(original);
        final String decrypted = cipher.decryptText(encrypted);

        assertThat(decrypted, is(original));
    }

    @Test
    public void testLongText() {
        final CachedCipher cipher = new CachedCipher();
        cipher.setKey("mySecretKey");

        return new HMACT64(key);
    }

    /**
     * Get an RC4 cipher instance initialized with the specified key.
     * @param key the encryption key
     * @return RC4 cipher in encryption mode
     */
    public static Cipher getArcfour(final byte[] key) {
        try {
            final Cipher c = Cipher.getInstance("RC4");
            c.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(key, "RC4"));
            return c;

        final int start = dstIndex;
        SMBUtil.writeInt2(this.ciphers != null ? this.ciphers.length : 0, dst, dstIndex);
        dstIndex += 2;

        if (this.ciphers != null) {
            for (final int cipher : this.ciphers) {
                SMBUtil.writeInt2(cipher, dst, dstIndex);
                dstIndex += 2;
            }
        }
        return dstIndex - start;

        };
        roleQueryHelperImpl.cipher = cipher;

        Set<String> roleSet;
        boolean encrypted;
        String value;

        encrypted = true;
        value = cipher.encryptoText("");
        roleSet = decodedRoleList(roleQueryHelperImpl, value, encrypted);
        assertEquals(0, roleSet.size());

        encrypted = true;
        value = cipher.encryptoText("role1");

   * order for a socket to be compatible the enabled cipher suites and protocols must intersect.
   *
   * For cipher suites, at least one of the [required cipher suites][cipherSuites] must match the
   * socket's enabled cipher suites. If there are no required cipher suites the socket must have at
   * least one cipher suite enabled.
   *

 */

package jcifs.smb1.util;

/**
 * Implementation of the RC4 (ARCFOUR) stream cipher algorithm.
 * This class provides RC4 encryption/decryption functionality used in SMB1 protocol operations.
 */
public class RC4 {

    byte[] s;
    int i, j;

    /**
     * Default constructor for RC4 cipher.
     * Call init() to initialize with a key before use.
     */
    public RC4() {
    }

    /**

with certificates and the privacy of data exchanged with strong ciphers.

When negotiating a connection to an HTTPS server, OkHttp needs to know which [TLS versions](https://square.github.io/okhttp/5.x/okhttp/okhttp3/-tls-version/) and [cipher suites](https://square.github.io/okhttp/5.x/okhttp/okhttp3/-cipher-suite/) to offer. A client that wants to maximize connectivity would include obsolete TLS versions and weak-by-design cipher suites. A strict client that wants to maximize security would...

        @DisplayName("Should encode various cipher counts correctly")
        void testEncodeVariousCipherCounts(int cipherCount) {
            int[] ciphers = new int[cipherCount];
            for (int i = 0; i < cipherCount; i++) {
                ciphers[i] = i + 1;
            }
            EncryptionNegotiateContext context = new EncryptionNegotiateContext(mockConfig, ciphers);