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C# CryptoStream.WriteShort方法代码示例

本文整理汇总了C#中System.Security.Cryptography.CryptoStream.WriteShort方法的典型用法代码示例。如果您正苦于以下问题:C# CryptoStream.WriteShort方法的具体用法?C# CryptoStream.WriteShort怎么用?C# CryptoStream.WriteShort使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在System.Security.Cryptography.CryptoStream的用法示例。


在下文中一共展示了CryptoStream.WriteShort方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: EncodeMessage

        byte[] EncodeMessage(byte[] recipient_pubkey, byte[] msgid, byte[] replyTo, string txt, byte[] prvkey, byte[] pubkey, out byte[] aes_key, out byte[] aes_iv)
        {
            if (replyTo == null)
                replyTo = new byte[16];

            var txtbuf = Encoding.UTF8.GetBytes(txt);
            var SignMessage = prvkey != null;
            byte[] hash = null;
            if (SignMessage)
            {
                using (var rsa = new RSACryptoServiceProvider())
                {
                    RSAParameters rsap;
                    Shared.LoadKey2(Shared.prvToPem(prvkey), null, out rsap);
                    rsa.ImportParameters(rsap);
                    using (var ms = new MemoryStream()) //sign
                    {
                        ms.Write(msgid, 0, msgid.Length);
                        ms.Write(replyTo, 0, replyTo.Length);
                        ms.WriteShort((short)txtbuf.Length);
                        ms.Write(txtbuf, 0, txtbuf.Length);
                        ms.WriteShort((short)pubkey.Length);
                        ms.Write(pubkey, 0, pubkey.Length);
                        ms.WriteShort((short)recipient_pubkey.Length);
                        ms.Write(recipient_pubkey, 0, recipient_pubkey.Length);
                        ms.Position = 0;
                        hash = rsa.SignData(ms, SHA512OID);
                    }
                }
            }

            byte[] c1;
            using (var ms1 = new MemoryStream())
            using (var ms = new BZip2OutputStream(ms1))
            {
                ms.Write(txtbuf, 0, txtbuf.Length);
                ms.Close();
                c1 = ms1.ToArray();
            }

            var compressText = c1.Length < txtbuf.Length;

            byte[] aesmsg;
            using (var aes = new RijndaelManaged())
            {
                using (MemoryStream msEncrypt = new MemoryStream())
                {
                    using (var encryptor = aes.CreateEncryptor())
                    using (CryptoStream sw2 = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
                    {
                        aes_key = aes.Key;
                        aes_iv = aes.IV;
                        sw2.WriteByte((Byte)((compressText ? 1 : 0) | (SignMessage ? 2 : 0)));
                        sw2.Write(msgid, 0, msgid.Length);
                        sw2.Write(replyTo, 0, replyTo.Length);
                        if (compressText)
                        {
                            sw2.WriteShort((short)c1.Length);
                            sw2.Write(c1, 0, c1.Length);
                        }
                        else
                        {
                            sw2.WriteShort((short)txtbuf.Length);
                            sw2.Write(txtbuf, 0, txtbuf.Length);
                        }
                        if (SignMessage)
                        {
                            sw2.WriteShort((short)pubkey.Length);
                            sw2.Write(pubkey, 0, pubkey.Length);
                            sw2.WriteShort((short)hash.Length);
                            sw2.Write(hash, 0, hash.Length);
                        }
                    }
                    msEncrypt.Flush();
                    aesmsg = msEncrypt.ToArray();
                }
            }
            return aesmsg;
        }
开发者ID:RSA-PM,项目名称:RSA-PM,代码行数:79,代码来源:Client.cs


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