1         /// 
 2         /// RSA私钥加密 3         /// 
 4         /// 待加密的文本 5         /// 私钥 6         /// 
       7         private string EncryptDataBytes(string strValue,string priKey) 8         { 9             if (string.IsNullOrEmpty(priKey))10             {11                 return "";12             }13             try14             {15                 RSACryptoServiceProvider.UseMachineKeyStore = true;16                 RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();17                 //私钥18                 RSA.FromXmlString(priKey);19                 byte[] signData = rsa.SignData(Encoding.UTF8.GetBytes(strValue), CryptoConfig.MapNameToOID("SHA1"));20                 return Convert.ToBase64String(signData);21             }22             catch (Exception ex)23             {24                 log.Warn(ex.Message);25                 return "";26             }27         }