temu客户端程序

AllBase/RsaBase.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AllBase
+{
+    class RsaBase
+    {
+
+        /// <summary>  
+        /// RSA签名  
+        /// </summary>  
+        /// <param name="privateKeyJava">私钥</param>  
+        /// <param name="data">待签名的内容</param>  
+        /// <returns></returns>  
+        public static string RSASignJava(string data, string privateKeyJava, string hashAlgorithm = "MD5", string encoding = "UTF-8")
+        {
+            RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
+            //rsa.FromXmlString();
+            //rsa.FromPrivateKeyJavaString(privateKeyJava);//加载私钥  
+                                                         //RSAPKCS1SignatureFormatter RSAFormatter = new RSAPKCS1SignatureFormatter(rsa);  
+                                                         ////设置签名的算法为MD5 MD5withRSA 签名  
+                                                         //RSAFormatter.SetHashAlgorithm(hashAlgorithm);  
+
+
+            var dataBytes = Encoding.GetEncoding(encoding).GetBytes(data);
+            var HashbyteSignature = rsa.SignData(dataBytes, hashAlgorithm);
+            return Convert.ToBase64String(HashbyteSignature);
+
+            //byte[] HashbyteSignature = ConvertToRgbHash(data, encoding);  
+
+            //byte[] dataBytes =Encoding.GetEncoding(encoding).GetBytes(data);  
+            //HashbyteSignature = rsa.SignData(dataBytes, hashAlgorithm);  
+            //return Convert.ToBase64String(HashbyteSignature);  
+            //执行签名   
+            //EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature);  
+            //return Convert.ToBase64String(RSAFormatter.CreateSignature(HashbyteSignature));  
+            //return result.Replace("=", String.Empty).Replace('+', '-').Replace('/', '_');  
+        }
+        //RSA加密,随机生成公私钥对并作为出参返回
+        static public string RSA_Encrypt(string str_Plain_Text, out string str_Public_Key, out string str_Private_Key)
+        {
+            str_Public_Key = "";
+            str_Private_Key = "";
+            UnicodeEncoding ByteConverter = new UnicodeEncoding();
+            byte[] DataToEncrypt = ByteConverter.GetBytes(str_Plain_Text);
+            try
+            {
+                RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
+                str_Public_Key = Convert.ToBase64String(RSA.ExportCspBlob(false));
+                str_Private_Key = Convert.ToBase64String(RSA.ExportCspBlob(true));
+
+                //OAEP padding is only available on Microsoft Windows XP or later. 
+                byte[] bytes_Cypher_Text = RSA.Encrypt(DataToEncrypt, false);
+                str_Public_Key = Convert.ToBase64String(RSA.ExportCspBlob(false));
+                str_Private_Key = Convert.ToBase64String(RSA.ExportCspBlob(true));
+                string str_Cypher_Text = Convert.ToBase64String(bytes_Cypher_Text);
+                return str_Cypher_Text;
+            }
+            catch (CryptographicException e)
+            {
+                Console.WriteLine(e.Message);
+                return null;
+            }
+        }
+
+        //RSA解密
+        static public string RSA_Decrypt(string str_Cypher_Text, string str_Private_Key)
+        {
+            byte[] DataToDecrypt = Convert.FromBase64String(str_Cypher_Text);
+            try
+            {
+                RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
+                //RSA.ImportParameters(RSAKeyInfo);
+                byte[] bytes_Public_Key = Convert.FromBase64String(str_Private_Key);
+                RSA.ImportCspBlob(bytes_Public_Key);
+
+                //OAEP padding is only available on Microsoft Windows XP or later. 
+                byte[] bytes_Plain_Text = RSA.Decrypt(DataToDecrypt, false);
+                UnicodeEncoding ByteConverter = new UnicodeEncoding();
+                string str_Plain_Text = ByteConverter.GetString(bytes_Plain_Text);
+                return str_Plain_Text;
+            }
+            catch (CryptographicException e)
+            {
+                Console.WriteLine(e.ToString());
+                return null;
+            }
+        }
+    }
+}