/// <summary>
/// 解密函数
/// </summary>
/// <param name="Content">解密内容</param>
/// <param name="privateKey">私钥(XML格式)</param>
/// <param name="rsaDes">经RSA加密后的desKey与desIV的集合</param>
/// <param name="desKey">经RSA解密后的desKey</param>
/// <param name="desIV">经RSA解密后的desKey</param>
/// <returns>byte[]</returns>
public byte[] DecryptBytes(string Content, string privateKey, string rsaDes, out string desKey, out string desIV)
{
byte[] byteResult = null;
if (FunctionHelper.CheckValiable(rsaDes))
{
// 解密DES密钥和初始化向量
RSACrypto RC = new RSACrypto();
string des = RC.RSADecrypt(privateKey, rsaDes);
string[] desArray = FunctionHelper.SplitArray(des, '§');
desKey = desArray[0];
desIV = desArray[1];
// DES解密内容
DESCrypto DC = new DESCrypto();
byteResult = DC.DecryptBytes(Content, desKey, desIV);
}
else
{
desKey = "";
desIV = "";
byteResult = Convert.FromBase64String(Content);
}
return(byteResult);
}
/// <summary>
/// 解密函数
/// </summary>
/// <param name="Content">解密内容</param>
/// <param name="privateKey">私钥(XML格式)</param>
/// <param name="rsaDes">经RSA加密后的desKey与desIV的集合</param>
/// <param name="desKey">经RSA解密后的desKey</param>
/// <param name="desIV">经RSA解密后的desKey</param>
/// <returns>string</returns>
public string DecryptString(string Content, string privateKey, string rsaDes, out string desKey, out string desIV)
{
string strResult = "";
if (FunctionHelper.CheckValiable(rsaDes))
{
// 解密DES密钥和初始化向量
RSACrypto RC = new RSACrypto();
string des = RC.RSADecrypt(privateKey, rsaDes);
string[] desArray = FunctionHelper.SplitArray(des, '§');
desKey = desArray[0];
desIV = desArray[1];
// DES解密内容
DESCrypto DC = new DESCrypto();
strResult = DC.DecryptString(Content, desKey, desIV);
}
else
{
desKey = "";
desIV = "";
strResult = Content;
}
return(strResult);
}
/// <summary>
/// 加密 byte[] 并返回 byte[]
/// </summary>
/// <param name="Content">加密内容</param>
/// <param name="publicKey">公钥(XML格式)</param>
/// <param name="desKey">DES密钥</param>
/// <param name="desIV">DES向量</param>
/// <param name="rsaDes">经RSA加密后的desKey与desIV的集合</param>
/// <returns>byte[]</returns>
public byte[] EncryptBytes(byte[] Content, string publicKey, string desKey, string desIV, out string rsaDes)
{
byte[] byteResult = null;
if (FunctionHelper.CheckValiable(publicKey))
{
// DES加密内容
DESCrypto DC = new DESCrypto();
byteResult = DC.EncryptBytes(Content, desKey, desIV);
// 加密DES密钥和初始化向量
RSACrypto RC = new RSACrypto();
string des = desKey + "§" + desIV;
rsaDes = RC.RSAEncrypt(publicKey, des);
}
else
{
rsaDes = "";
byteResult = Content;
}
return(byteResult);
}
/// <summary>
/// 加密 byte[] 并返回 string
/// </summary>
/// <param name="Content">加密内容</param>
/// <param name="publicKey">公钥(XML格式)</param>
/// <param name="desKey">DES密钥</param>
/// <param name="desIV">DES向量</param>
/// <param name="rsaDes">经RSA加密后的desKey与desIV的集合</param>
/// <returns>string</returns>
public string EncryptString(byte[] Content, string publicKey, string desKey, string desIV, out string rsaDes)
{
string strResult = "";
if (FunctionHelper.CheckValiable(publicKey))
{
// DES加密内容
DESCrypto DC = new DESCrypto();
strResult = DC.EncryptString(Content, desKey, desIV);
// 加密DES密钥和初始化向量
RSACrypto RC = new RSACrypto();
string des = desKey + "§" + desIV;
rsaDes = RC.RSAEncrypt(publicKey, des);
}
else
{
rsaDes = "";
strResult = Encoding.UTF8.GetString(Content);
}
return(strResult);
}
/// <summary>
/// 获取以 POST 方式发送过来的流数据和 Header 中的信息
/// </summary>
/// <param name="RsaDESSTRING">用于DES加密解密的 Key 和 IV 的集合</param>
/// <returns>byte[]</returns>
public byte[] ReceiveToBytes(out string RsaDESSTRING)
{
if (Request.RequestType != "POST")
{
RsaDESSTRING = "";
return(null);
}
try
{
Stream stream = Request.InputStream;
using (StreamReader sr = new StreamReader(stream, Encoding.UTF8))
{
byte[] buffer = new byte[(int)stream.Length];
stream.Write(buffer, 0, buffer.Length);
RsaDESSTRING = FunctionHelper.CheckValiable(Request.Headers["CS_DESSTRING"]) ? Request.Headers["CS_DESSTRING"] : "";
return(buffer);
}
}
catch (Exception exc)
{
throw exc;
}
}
/// <summary>
/// 获取以 POST 方式发送过来的流数据和 Header 中的信息
/// </summary>
/// <param name="RsaDESSTRING">用于DES加密解密的 Key 和 IV 的集合</param>
/// <returns>string</returns>
public string ReceiveToString(out string RsaDESSTRING)
{
if (Request.RequestType != "POST")
{
RsaDESSTRING = "";
return("");
}
try
{
Stream stream = Request.InputStream;
string strResult = "";
StreamReader sr = new StreamReader(stream, Encoding.UTF8);
char[] read = new char[256];
int count = sr.Read(read, 0, 256);
int i = 0;
while (count > 0)
{
i += Encoding.UTF8.GetByteCount(read, 0, 256);
string str = new String(read, 0, count);
strResult += str;
count = sr.Read(read, 0, 256);
}
RsaDESSTRING = FunctionHelper.CheckValiable(Request.Headers["CS_DESSTRING"]) ? Request.Headers["CS_DESSTRING"] : "";
return(strResult);
}
catch (Exception exc)
{
throw exc;
}
}
/// <summary>
/// 发送方获取接收方返回的信息
/// </summary>
/// <param name="res">返回给发送方的 Response 对象</param>
/// <param name="CS_RESULT">返回操作结果</param>
/// <returns>string</returns>
public static string GetResponseContent(WebResponse res, out string CS_RESULT)
{
CS_RESULT = FunctionHelper.CheckValiable(res.Headers["CS_RESULT"]) ? res.Headers["CS_RESULT"] : "";
return(cs.GetResponseStream(res));
}
