首次提交

2023-03-02 22:57:29 +08:00
parent 295157d946
commit 505bf37dab
16 changed files with 1577 additions and 0 deletions
--- a/SMCryptoUtils/SMUtil.cs
+++ b/SMCryptoUtils/SMUtil.cs
@ -0,0 +1,91 @@
+using System;
+using Org.BouncyCastle.Utilities.Encoders;
+using System.Text;
+using Newtonsoft.Json.Linq;
+using System.Runtime.InteropServices;
+
+namespace SMCryptoUtils
+{
+
+    [ClassInterface(ClassInterfaceType.None)]
+    public class SMUtil:ISMUtil
+    {
+
+        private readonly static EasyGmUtils easyGmUtils = new EasyGmUtils();
+
+        private readonly static SignUtil signUtil = new SignUtil();
+
+        /**
+        * 加密
+        *
+        * @param data
+        * @param appId
+        * @param appSecret
+        * @return
+        */
+        public string encrypt(string data, string appId, string appSecret)
+        {
+            //加密流程
+            //用appId加密appSecret获取新秘钥
+            byte[] appSecretEncData = easyGmUtils.sm4Encrypt(Encoding.UTF8.GetBytes(appId.Substring(0, 16)), Encoding.UTF8.GetBytes(appSecret));
+            //新秘钥串
+            byte[] secKey = Encoding.UTF8.GetBytes(Hex.ToHexString(appSecretEncData).ToUpper().Substring(0, 16));
+            //加密0数据
+            string encryptDataStr = Hex.ToHexString(easyGmUtils.sm4Encrypt(secKey, Encoding.UTF8.GetBytes(data))).ToUpper();
+            return encryptDataStr;
+        }
+
+        /**
+         * 解密
+         *
+         * @param data
+         * @param appId
+         * @param appSecret
+         * @return
+        */
+        public string decrypt(string data, string appId, string appSecret)
+        {
+            byte[] appSecretEncDataDecode = easyGmUtils.sm4Encrypt(Encoding.UTF8.GetBytes(appId.Substring(0, 16)), Encoding.UTF8.GetBytes(appSecret));
+            byte[] secKeyDecode = Encoding.UTF8.GetBytes(Hex.ToHexString(appSecretEncDataDecode).ToUpper().Substring(0, 16));
+            string decryptDataStr = Encoding.UTF8.GetString(easyGmUtils.sm4Decrypt(secKeyDecode, Hex.Decode(data)));
+            return decryptDataStr;
+        }
+
+        /**
+        * 签名
+        *
+        * @param jsonObject
+        * @param appSecret
+        * @param privateKey
+        * @return
+        */
+        public string sign(JObject jsonObject, string appSecret, string privateKey)
+        {
+            // 获取签名串
+            byte[] signText = Encoding.UTF8.GetBytes(signUtil.getSignText(jsonObject, appSecret));
+            byte[] userId = Encoding.UTF8.GetBytes(appSecret);
+            byte[] prvkey = Base64.Decode(privateKey);
+            string responseSign = Base64.ToBase64String(easyGmUtils.signSm3WithSm2(signText, userId, prvkey));
+            return responseSign;
+        }
+
+        /**
+         * 验签
+         *
+         * @param jsonObject
+         * @param appSecret
+         * @param publicKey
+         * @param responseSign
+         * @return
+         */
+        public Boolean verify(JObject jsonObject, string appSecret, string publicKey, string responseSign)
+        {
+            //验签
+            byte[] msg = Encoding.UTF8.GetBytes(signUtil.getSignText(jsonObject, appSecret));
+            byte[] userIdDecode = Encoding.UTF8.GetBytes(appSecret);
+            byte[] pubkey = Base64.Decode(publicKey);
+            byte[] signData = Base64.Decode(responseSign);
+            return easyGmUtils.verifySm3WithSm2(msg, userIdDecode, signData, pubkey);
+        }
+    }
+}