예제 #1
0
 /// <summary>
 /// Generates and saves relinearization keys to an output stream.
 /// </summary>
 /// <remarks>
 /// Half of the polynomials in relinearization keys are randomly generated
 /// and are replaced with the seed used to compress output size. The output
 /// is in binary format and not human-readable. The output stream must have
 /// the "binary" flag set.
 /// </remarks>
 /// <param name="stream">The stream to save the relinearization keys to</param>
 /// <param name="comprMode">The desired compression mode</param>
 public long RelinKeysSave(Stream stream, ComprModeType?comprMode = null)
 {
     NativeMethods.KeyGenerator_RelinKeys(NativePtr, true, out IntPtr relinKeysPtr);
     using (RelinKeys relinKeys = new RelinKeys(relinKeysPtr))
     {
         return(relinKeys.Save(stream, comprMode));
     }
 }
예제 #2
0
        /// <summary>
        /// Generates and saves relinearization keys to an output stream.
        /// </summary>
        /// <remarks>
        /// Half of the polynomials in relinearization keys are randomly generated
        /// and are replaced with the seed used to compress output size. The output
        /// is in binary format and not human-readable. The output stream must have
        /// the "binary" flag set.
        /// </remarks>
        /// <param name="stream">The stream to save the relinearization keys to</param>
        /// <param name="comprMode">The desired compression mode</param>
        /// <exception cref="ArgumentNullException">if stream is null</exception>
        /// <exception cref="InvalidOperationException">if the encryption
        /// parameters do not support keyswitching</exception>
        /// <exception cref="ArgumentException">if the stream is closed or does not
        /// support writing</exception>
        /// <exception cref="IOException">if I/O operations failed</exception>
        /// <exception cref="InvalidOperationException">if compression mode is not
        /// supported, or if compression failed</exception>

        public long RelinKeysSave(Stream stream, ComprModeType?comprMode = null)
        {
            if (null == stream)
            {
                throw new ArgumentNullException(nameof(stream));
            }
            if (!UsingKeyswitching())
            {
                throw new InvalidOperationException("Encryption parameters do not support keyswitching");
            }

            comprMode = comprMode ?? Serialization.ComprModeDefault;
            if (!Serialization.IsSupportedComprMode(comprMode.Value))
            {
                throw new InvalidOperationException("Unsupported compression mode");
            }

            NativeMethods.KeyGenerator_RelinKeys(NativePtr, true, out IntPtr relinKeysPtr);
            using (RelinKeys relinKeys = new RelinKeys(relinKeysPtr))
            {
                return(relinKeys.Save(stream, comprMode));
            }
        }