/**
     * Validates if the compression algorithm is known.
     *
     * @param algorithm the algorithm to validate
     * @return true if the algorithm is known
     */
    private boolean isValidCompressionAlgorithm(int algorithm) {
        return algorithm == COMPRESSION_NONE || algorithm == COMPRESSION_LZ77 || algorithm == COMPRESSION_LZ77_HUFFMAN

     *
     * @param algorithm the compression algorithm to check
     * @return true if the algorithm is supported
     */
    boolean isAlgorithmSupported(int algorithm);

    /**
     * Gets the list of supported compression algorithms.
     *
     * @return array of supported algorithm constants
     */
    int[] getSupportedAlgorithms();

    /**

 */
open class CompressionInterceptor(
  vararg val algorithms: DecompressionAlgorithm,
) : Interceptor {
  internal val acceptEncoding =
    algorithms
      .map {
        it.encoding
      }.joinToString(separator = ", ")

  override fun intercept(chain: Interceptor.Chain): Response =
    if (algorithms.isNotEmpty() && chain.request().header("Accept-Encoding") == null) {
      val request =

        }
    }

    @Nested
    @DisplayName("Encoding Tests")
    class EncodingTests {

        @Test
        @DisplayName("Should encode single hash algorithm with salt")
        void testEncodeSingleHashAlgoWithSalt() {
            int[] hashAlgos = { PreauthIntegrityNegotiateContext.HASH_ALGO_SHA512 };
            byte[] salt = { 0x01, 0x02, 0x03, 0x04 };

    public static MessageDigest getInstance(final String algorithm) {
        assertArgumentNotEmpty("algorithm", algorithm);

        try {
            return MessageDigest.getInstance(algorithm);
        } catch (final NoSuchAlgorithmException e) {
            throw new NoSuchAlgorithmRuntimeException(e);
        }
    }

    /**
     * Hashes the specified text using the given algorithm and converts it to a string.
     *

        }
    }

    @Override
    public byte[] decompress(byte[] compressedData, int algorithm) throws CIFSException {
        if (compressedData == null) {
            throw new CIFSException("Compressed data cannot be null");
        }
        return decompress(compressedData, 0, compressedData.length, algorithm);
    }

    @Override

    /**
     * Gets the name of a hash algorithm.
     *
     * @param algorithm the algorithm constant
     * @return the algorithm name
     */
    public static String getHashAlgorithmName(int algorithm) {
        switch (algorithm) {
        case HASH_ALGO_SHA512:
            return "SHA-512";
        default:
            return "Unknown(0x" + Integer.toHexString(algorithm) + ")";
        }
    }

    /**

    }

    @Test
    @DisplayName("Test supported algorithms")
    public void testSupportedAlgorithms() {
        int[] algorithms = context.getCompressionAlgorithms();
        assertNotNull(algorithms);
        assertEquals(3, algorithms.length);
        assertTrue(context.supportsAlgorithm(CompressionNegotiateContext.COMPRESSION_LZ77));

  /**
   * Returns a hash function implementing the Message Authentication Code (MAC) algorithm, using the
   * MD5 (128 hash bits) hash function and a {@link SecretKeySpec} created from the given byte array
   * and the MD5 algorithm.
   *
   * <p>If you are designing a new system that needs HMAC, prefer {@link #hmacSha256} or other
   * future-proof algorithms <a

				found = true
				break
			}
		}
		if !found {
			logger.Fatal(fmt.Errorf("unknown algorithm %q passed to --sftp=%s\nValid algorithms: %v", algo, arg, strings.Join(allowed, ", ")), "unable to start SFTP server")
		}
	}
	if len(filteredAlgos) == 0 {
		logger.Fatal(fmt.Errorf("no valid algorithms passed to --sftp=%s\nValid algorithms: %v", arg, strings.Join(allowed, ", ")), "unable to start SFTP server")
	}
	return filteredAlgos
}