/// <summary>
/// 根据私钥解密
/// </summary>
/// <param name="encriptedString">要解密的字符串</param>
/// <param name="privateKey">私钥</param>
/// <returns></returns>
public string DecriptByPrivateKey(string encriptedString, string privateKey)
{
rsa.FromXmlString(MD5Manager.Md5Decrypt(privateKey));
byte[] tempByte = new byte[128];
string[] tempStr = encriptedString.Split(',');
for (int i = 0; i < tempStr.Length; i++)
{
tempByte[i] = Convert.ToByte(tempStr[i]);
}
return(Encoding.UTF8.GetString(rsa.Decrypt(tempByte, false)));
}
/// <summary>
/// 根据公钥加密字符串
/// </summary>
/// <param name="originalString">要加密的字符串</param>
/// <param name="publicKey">公钥</param>
/// <returns></returns>
public string EncriptByPublicKey(string originalString, string publicKey)
{
rsa.FromXmlString(MD5Manager.Md5Decrypt(publicKey));
byte[] tempByte = rsa.Encrypt(Encoding.UTF8.GetBytes(originalString), false);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < tempByte.Length; i++)
{
sb.Append(tempByte[i].ToString("X2"));
if (i % 2 != 0)
{
sb.Append("(");
}
else
{
sb.Append(")");
}
}
return(sb.Remove(sb.Length - 1, 1).ToString());
}
//获取私钥
public string GetPrivateKey()
{
return(MD5Manager.Md5Encrypt(rsa.ToXmlString(true)));
}
//获取公钥
public string GetPublicKey()
{
return(MD5Manager.Md5Encrypt(rsa.ToXmlString(false)));
}