如何用c#实现这个sha加密算法？(根据jsSHA改造）

TianYi3G2013 2020-05-23 05:29:31



<!DOCTYPE html>

<html>

<head>

    <meta charset="utf-8" />

    <title>jsSHA</title>

</head>

<body>

    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jsSHA/2.4.2/sha.js"></script>

    <script type="text/javascript">

        var key = "123456";

        var rawStr = "abc";

        function getHMACStr() {

            var a = new jsSHA("SHA-1", "TEXT");

            return a.setHMACKey(key, "TEXT"), a.update(rawStr), a.getHMAC("B64");

        }



        document.write(getHMACStr());

        //结果：8a5qSNRnNFqmPnKoy9i6upJBfOU=

    </script>

</body>

</html>

形似：



 protected void Page_Load(object sender, EventArgs e)

    {

        /*

         *      c# - 尝试在C＃上复制JavaScript哈希 - IT工具网

                https://www.coder.work/article/2690380



                var key = "35353535353535366363636363",

                credentials = "web:web",  

                shaObj = new jsSHA(credentials, "ASCII"), 

                hash = shaObj.getHMAC(key, "HEX", "SHA-1", "HEX"); // key and generated hash are hex values

                alert("Hash: " + hash);

         */



        Response.Write("js:60c9059c9be9bcd092e00eb7f03492fa3259f459");

        Response.Write("<br/>");



        var key = "123456";

        string credentials = "abc";



        var encodingCred = new System.Text.ASCIIEncoding();

        var encodingKey = new System.Text.ASCIIEncoding();

        //byte[] keyByte = encodingKey.GetBytes(key);

        byte[] keyByte = StringToByteArray(key);

        byte[] credentialsBytes = encodingCred.GetBytes(credentials);

        using (var hmacsha1 = new HMACSHA1(keyByte))

        {

            byte[] hashmessage = hmacsha1.ComputeHash(credentialsBytes);

            string hash = BitConverter.ToString(hashmessage).Replace("-", string.Empty).ToLower();



            Response.Write("c#:" + hash);

        }



        Response.End();

    }



    public static byte[] StringToByteArray(String hex)

    {

        int NumberChars = hex.Length;

        byte[] bytes = new byte[NumberChars / 2];

        for (int i = 0; i < NumberChars; i += 2)

            bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);

        return bytes;

    }

问题：c#的如何改成像上面js的那样，用 a.getHMAC("B64")的？

参考文章：
c# - 尝试在C＃上复制JavaScript哈希 - IT工具网
https://www.coder.work/article/2690380

c# - How do you convert a byte array to a hexadecimal string, and vice versa? - Stack Overflow
https://stackoverflow.com/questions/311165/how-do-you-convert-a-byte-array-to-a-hexadecimal-string-and-vice-versa/311179#311179

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dmankill 2020-05-29

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引用 3 楼 TianYi3G2013 的回复:

[quote=引用 2 楼 dmankill 的回复:] byte[] hashmessage = hmacsha1.ComputeHash(Encoding.UTF8.GetBytes("abc")); var b64 = Convert.ToBase64String(hashmessage); 得出的结果跟js计算的一致

我的结果是：8L9Q2JUrEVgn6zg15xObcJIL1c8=，不同啊？[/quote]

TianYi3G2013 2020-05-29

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引用 2 楼 dmankill 的回复:

byte[] hashmessage = hmacsha1.ComputeHash(Encoding.UTF8.GetBytes("abc")); var b64 = Convert.ToBase64String(hashmessage); 得出的结果跟js计算的一致

我的结果是：8L9Q2JUrEVgn6zg15xObcJIL1c8=，不同啊？

dmankill 2020-05-29

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byte[] hashmessage = hmacsha1.ComputeHash(Encoding.UTF8.GetBytes("abc")); var b64 = Convert.ToBase64String(hashmessage); 得出的结果跟js计算的一致

TianYi3G2013 2020-05-23

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Caligatio/jsSHA: A JavaScript/TypeScript implementation of the complete Secure Hash Standard (SHA) family (SHA-1, SHA-224/256/384/512, SHA3-224/256/384/512, SHAKE128/256, cSHAKE128/256, and KMAC128/256) with HMAC. https://github.com/Caligatio/jsSHA