ICSharpCode.SharpZipLib.Zip.ZipFile.WriteEncryptionHeader C# (CSharp) Метод

        private static void WriteEncryptionHeader(Stream stream, long crcValue) {
            var cryptBuffer=new byte[ZipConstants.CryptoHeaderSize];
            var rnd=new Random();
            rnd.NextBytes(cryptBuffer);
            cryptBuffer[11]=(byte)(crcValue>>24);
            stream.Write(cryptBuffer, 0, cryptBuffer.Length);
        }