我想转换这个函数：
function DoHashPassword($username, $clear_password)
{
return strtoupper(bin2hex(strrev(hex2bin(strtoupper(hash("sha256",strtoupper(hash("sha256", strtoupper($username)).":".strtoupper($clear_password))))))));
}
到 C# 语言。
我该怎么做？
目前我处于这一点：
剩余（以PHP为单位）
strtoupper(bin2hex(strrev(hex2bin($password))));
我做了什么（在 C# 中）
public static string DoShaHashPassword256(string _email, string _password)
{
byte[] emailbyte = Encoding.ASCII.GetBytes(_email.ToUpper());
var sha_email = SHA256.Create();
byte[] bytehashemail = sha_email.ComputeHash(emailbyte);
_email = HexStringFromBytes(bytehashemail);
//now with password
byte[] passbyte = Encoding.ASCII.GetBytes(_email.ToUpper() + ":" + _password.ToUpper());
var sha_pass = SHA256.Create();
byte[] bytehashpass = sha_pass.ComputeHash(passbyte);
_password = HexStringFromBytes(bytehashpass).ToUpper();
return /* hashed password */
}
private static string HexStringFromBytes(byte[] bytes)
{
var sb = new StringBuilder();
foreach (byte b in bytes)
{
var hex = b.ToString("x2");
sb.Append(hex);
}
return sb.ToString();
}
我现在不知道该怎么继续。
这是问题的答案。感谢您对我的问题投了不好的票（你应该帮忙，而不是投坏票，没有答案。
public static string DoShaHashPassword256(string _email, string _password)
{
byte[] emailbyte = Encoding.ASCII.GetBytes(_email.ToUpper());
var sha_email = SHA256.Create();
byte[] bytehashemail = sha_email.ComputeHash(emailbyte);
_email = HexStringFromBytes(bytehashemail);
//now with password
byte[] passbyte = Encoding.ASCII.GetBytes(_email.ToUpper() + ":" + _password.ToUpper());
var sha_pass = SHA256.Create();
byte[] bytehashpass = sha_pass.ComputeHash(passbyte);
_password = HexStringFromBytes(bytehashpass).ToUpper();
//hex2bin
var bindata = hex2bin(_password);
//strrev
char[] chararray = bindata.ToCharArray();
Array.Reverse(chararray);
var reversedstring = new string(chararray);
//bin2hex
byte[] bytes = Encoding.GetEncoding(1252).GetBytes(reversedstring);
string hexString = HexStringFromBytes(bytes);
return hexString.ToUpper();
}
private static string HexStringFromBytes(byte[] bytes)
{
var sb = new StringBuilder();
foreach (byte b in bytes)
{
var hex = b.ToString("x2");
sb.Append(hex);
}
return sb.ToString();
}
private static string hex2bin(string hexdata)
{
if (hexdata == null)
throw new ArgumentNullException("hexdata");
if (hexdata.Length % 2 != 0)
throw new ArgumentException("hexdata should have even length");
byte[] bytes = new byte[hexdata.Length / 2];
for (int i = 0; i < hexdata.Length; i += 2)
bytes[i / 2] = (byte)(HexValue(hexdata[i]) * 0x10
+ HexValue(hexdata[i + 1]));
return Encoding.GetEncoding(1252).GetString(bytes);
}
private static int HexValue(char c)
{
int ch = (int)c;
if (ch >= (int)'0' && ch <= (int)'9')
return ch - (int)'0';
if (ch >= (int)'a' && ch <= (int)'f')
return ch - (int)'a' + 10;
if (ch >= (int)'A' && ch <= (int)'F')
return ch - (int)'A' + 10;
throw new ArgumentException("Not a hexadecimal digit.");
}