RSA私钥加密

 1         /// <summary>
 2         /// RSA私钥加密
 3         /// </summary>
 4         /// <param name="strValue">待加密的文本</param>
 5         /// <param name="prkKey">私钥</param>
 6         /// <returns></returns>
 7         private string EncryptDataBytes(string strValue,string priKey)
 8         {
 9             if (string.IsNullOrEmpty(priKey))
10             {
11                 return "";
12             }
13             try
14             {
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         }