Using AsymmetricAlgorithm Private and Public key with RSA C#
我有两个包含RSA私钥和RSA公钥的非对称算法对象。从Windows我的密钥库和用户证书中检索到私钥。如何将这些密钥与rsacryptoseServiceProvider一起使用c中的rsa算法加密数据？换句话说，我如何指定我要使用已经拥有的密钥？
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | #region"RSA Encrypt/Decrypt" public string RSAEncrypt(string str, string publicKey) { //---Creates a new instance of RSACryptoServiceProvider--- try { RSACryptoServiceProvider RSA = new RSACryptoServiceProvider(); //---Loads the public key--- RSA.FromXmlString(publicKey); byte[] EncryptedStr = null; //---Encrypts the string--- EncryptedStr = RSA.Encrypt(ASCII.GetBytes(str), false); //---Converts the encrypted byte array to string--- int i = 0; System.Text.StringBuilder s = new System.Text.StringBuilder(); for (i = 0; i <= EncryptedStr.Length - 1; i++) { //Console.WriteLine(EncryptedStr(i)) if (i != EncryptedStr.Length - 1) { s.Append(EncryptedStr[i] +""); } else { s.Append(EncryptedStr[i]); } } return s.ToString(); } catch (Exception err) { Interaction.MsgBox(err.ToString()); } } public string RSADecrypt(string str, string privateKey) { try { //---Creates a new instance of RSACryptoServiceProvider--- RSACryptoServiceProvider RSA = new RSACryptoServiceProvider(); //---Loads the private key--- RSA.FromXmlString(privateKey); //---Decrypts the string--- byte[] DecryptedStr = RSA.Decrypt(HexToByteArr(str), false); //---Converts the decrypted byte array to string--- System.Text.StringBuilder s = new System.Text.StringBuilder(); int i = 0; for (i = 0; i <= DecryptedStr.Length - 1; i++) { //Console.WriteLine(DecryptedStr(i)) s.Append(System.Convert.ToChar(DecryptedStr[i])); } //Console.WriteLine(s) return s.ToString(); } catch (Exception err) { Interaction.MsgBox(err.ToString()); } } #endregion |
公钥(arg)应如下所示：< RSAKEYVALY >
私钥(arg)应如下所示：< RSAKEYVALY > 8ZLZPMKO3SAM9PVD/L[…]BA0MWLJ9DYUMVMTQ6L8M9IQ==1nghjxyea9sjuwy[…]v+op2yyyglmek/gt5sl0v6xqqzq==