麻烦大神帮我将这段PHP代码转成c#代码

[qq554006164]

<?php

	$salted="abcdefghijklm";

 	$digest = hash("sha256", $salted, true);

        for ($i = 1; $i < 5000; ++$i) {
            $digest = hash("sha256", $digest.$salted, true);
        }

        echo base64_encode($digest) ;
?>

[全栈极简]

又来“翻译”了，找个支持sha256算法加密的hash函数，最后Convert.ToBase64String即可。

[仰望那天空]

public string SHA256Encrypt(string strIN)
    {
        //string strIN = getstrIN(strIN);
        byte[] tmpByte;
        SHA256 sha256 = new SHA256Managed();

        tmpByte = sha256.ComputeHash(GetKeyByteArray(strIN));
        sha256.Clear();
       
ASCIIEncoding Asc = new ASCIIEncoding();
        return Asc.GetString(tmpByte);

    }

楼主可参考一下

[qq554006164]

        public void SHA256Encrypt()
        {
            string strKey = "abcdefghijklm";
            SHA256 sha256 = new SHA256Managed();
            byte[] byteKey = GetKeyByteArray(strKey);
            byte[] byteData = sha256.ComputeHash(byteKey);
            sha256.Clear();

            for (int i = 1; i < 5000; ++i)
            {
                sha256 = new SHA256Managed();
                string strnew = GetStringValue(byteData) + strKey;
                byteData = sha256.ComputeHash(GetKeyByteArray(strnew));
                sha256.Clear();
            }

            Console.WriteLine(Convert.ToBase64String(byteData));
        }
        private string GetStringValue(byte[] Byte)
        {
            UTF8Encoding Asc = new UTF8Encoding();
            return Asc.GetString(Byte);
        }
        private byte[] GetKeyByteArray(string strKey)
        {
            UTF8Encoding Asc = new UTF8Encoding();

            int tmpStrLen = strKey.Length;

            byte[] tmpByte = new byte[tmpStrLen - 1];

            tmpByte = Asc.GetBytes(strKey);

            return tmpByte;
        }

这是我转换的，但结果对不上。不知道是哪里错了

[qq554006164]

SHA256 sha256 = new SHA256Managed();
            string strKey = "abcdefghijklm";
            byte[] tmpByte = sha256.ComputeHash(Encoding.UTF8.GetBytes(strKey));
            for (int i = 1; i < 5000; ++i)
            {
                string strnew = Encoding.UTF8.GetString(tmpByte) + strKey;
                tmpByte = sha256.ComputeHash(Encoding.UTF8.GetBytes(strnew));
            }
            string key = Convert.ToBase64String(tmpByte);
            Console.WriteLine(key);

修改了下

[qq554006164]

第一次的加密结果是对的，就是后面循环5000次，加密结果就不对了

[qq554006164]

<?php
 
    $salted="abcdefghijklm";
 
     $digest = hash("sha256", $salted, true);
 
     echo $digest ;
     /*
       此处输出结果：ó“âÊÃQOνTå‰êÒ¼>ã7[Í‹x–Ðör®±D
       C#加密后输出结果：����QOνT��Ҽ>�7[͋x���r��D
    */

        for ($i = 1; $i < 5000; ++$i) {
            $digest = hash("sha256", $digest.$salted, true);
        }
 
        echo base64_encode($digest) ;
?>

[xuzuning]

            var salted = "abcdefghijklm";
            var s = Encoding.ASCII.GetBytes(salted);
            var hasher = new SHA256Managed();
            hasher.ComputeHash(s);
            for (var i = 0; i < 5000-1; i++)
            {
                hasher.ComputeHash(hasher.Hash.Concat(s).ToArray());
            }
            Console.WriteLine(Convert.ToBase64String(hasher.Hash, Base64FormattingOptions.None));

F+TfwIODel8hANq7BYB2yMUpxtI5MG8mS8EICI4Xxbw=

[qq554006164]

引用 7 楼 xuzuning 的回复:

            var salted = "abcdefghijklm";
            var s = Encoding.ASCII.GetBytes(salted);
            var hasher = new SHA256Managed();
            hasher.ComputeHash(s);
            for (var i = 0; i < 5000-1; i++)
            {
                hasher.ComputeHash(hasher.Hash.Concat(s).ToArray());
            }
            Console.WriteLine(Convert.ToBase64String(hasher.Hash, Base64FormattingOptions.None));

F+TfwIODel8hANq7BYB2yMUpxtI5MG8mS8EICI4Xxbw=

OK了，谢谢