记录asp.net对接华为saas接口

由于项目要上架华为云saas，特此记录开发中遇到的问题

1，验证authToken

 根据官方的说明

          Dictionary<string, string> paramsMap = new Dictionary<string, string>();//需要字典排序，用字典接受数据
  
            if (!string.IsNullOrEmpty(activity))
            {
                paramsMap.Add("activity", activity);
           
            }
            ......

对数据进行解析

 //解析出url内容
            string timeStamp = paramsMap["timeStamp"];//下面要用
            string authToken = paramsMap["authToken"];
           //对剩下的参数进行排序，拼接成加密内容
            SortedDictionary<string, string> sortedMap = new 
            SortedDictionary<string, string>(paramsMap);
            sortedMap.Remove("authToken");//去除token，
            StringBuilder strBuffer = new StringBuilder();//拼接数据
            foreach (KeyValuePair<string, string> kvp in sortedMap)
            {
                strBuffer.Append("&").Append(kvp.Key).Append("=").Append(kvp.Value);
            }
            string macKey=key+timeStamp ;//商家中心的key加上时间
            //修正消息体,去除第一个参数前面的
            string reqParams = strBuffer.ToString().Substring(1);

            byte[] keyByte = Encoding.Default.GetBytes(macKey);
            byte[] messageBytes = Encoding.UTF8.GetBytes(reqParams );
            string signature="";//解析后的值
            using (var hmacsha256 = new HMACSHA256(keyByte))
            {
                byte[] hashmessage = hmacsha256.ComputeHash(messageBytes);
                signature=  Convert.ToBase64String(hashmessage)
            }
        
          //判断authToken == signature是否相同，相同就代表token正确

解析手机号 之类的的 加密信息

accesskey的值不是你在商家信息里面的key了，是

encryptAESCBC后的key，

 1，先根据华为云在线java代码生成key，然后拿这个key再加解密，【不要用卖家中心的key】

1) 在Application.java 里的main方法里添加

import com.examples.util.IsvProduceAPI;//引入

 IsvProduceAPI.encryptContent("阿吧阿吧", "华为云卖家中心key", 1);执行

 2）在IsvProduceAP.java 里encryptAESCBC方法里打印key，在SecretKey key = keyGenerator.generateKey();后面加上两行代码

byte[] enCodeFormat=key.getEncoded();
System.out.println(base_64(enCodeFormat));

3)运行在线java代码 打印出JavaKeyGenCode，之后拿这个key进行加解密

解析华为传过来的结果

 首先是16位数的iv值， 比如我传入的值是text

 那么

  string  iv = text.Substring(0, 16);

            string  JavaKeyGenCode = "操作后的key";
            RijndaelManaged rijndaelCipher = new RijndaelManaged();
            rijndaelCipher.Mode = CipherMode.CBC;
            rijndaelCipher.Padding = PaddingMode.PKCS7;
            rijndaelCipher.KeySize = keySize;
            byte[] encryptedData = Convert.FromBase64String(text.Substring(16));
            byte[] keyBytes = Convert.FromBase64String(JavaKeyGenCode);
            rijndaelCipher.Key = keyBytes;
            byte[] ivBytes = Encoding.UTF8.GetBytes(iv);
            rijndaelCipher.IV = ivBytes;
            ICryptoTransform transform = rijndaelCipher.CreateDecryptor(rijndaelCipher.Key, rijndaelCipher.IV);
            byte[] plainText = transform.TransformFinalBlock(encryptedData, 0, encryptedData.Length);
             string aa= Encoding.UTF8.GetString(plainText);//这个就是结果

返回给华为云的数据，

要加密

   string iv = Guid.NewGuid().ToString().Replace("-", "").Substring(0, 16);//自定义iv

            key = "运行之后的key";
            RijndaelManaged rijndaelCipher = new RijndaelManaged();
            rijndaelCipher.Mode = CipherMode.CBC;
            rijndaelCipher.Padding = PaddingMode.PKCS7;
            rijndaelCipher.KeySize = 256;
            byte[] pwdBytes = Convert.FromBase64String(key);
            rijndaelCipher.Key = pwdBytes;
            byte[] ivBytes = Encoding.UTF8.GetBytes(iv);
            rijndaelCipher.IV = ivBytes;
            ICryptoTransform transform = rijndaelCipher.CreateEncryptor();
            byte[] plainText = Encoding.UTF8.GetBytes(text);
            byte[] cipherBytes = transform.TransformFinalBlock(plainText, 0, plainText.Length);
            return Convert.ToBase64String(cipherBytes);