asp实现的sha1加密解密代码（和C#兼容）

在百度找的几个asp sha1（vbs写的）加密结果和asp.net的sha1加密结果不一样，asp.net sha1加密完后是40位，网上找的asp sha1加密是64位，还以为asp.net做了截取（如网上的asp的md5机密和asp.net位数不一样，是做了截取的问题），但是asp的64位加密结果并没有包含asp.net的40位结果，看来找到的版本和asp.net的加密算法不一样。
 
最后还是靠*用google找到了一个js版本的sha1加密代码结合asp使用后结果和asp.net的sha1加密一模一样。。看来技术类的文字用度娘还是搞不过谷歌啊。。随便fuck下中国的防火墙。。谷歌也给封了。
 
asp sha1加密源代码如下，和asp.net的sha1加密结果一致:

<script language="javascript" type="text/javascript" runat="server">
/*
 * a javascript implementation of the secure hash algorithm, sha-1, as defined
 * in fips pub 180-1
 * version 2.1a copyright paul johnston 2000 - 2002.
 * other contributors: greg holt, andrew kepert, ydnar, lostinet
 * distributed under the bsd license
 * see http://pajhome.org.uk/crypt/md5 for details.
 */
/*
 * configurable variables. you may need to tweak these to be compatible with
 * the server-side, but the defaults work in most cases.
 */
var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase        */
var b64pad  = "="; /* base-64 pad character. "=" for strict rfc compliance   */
var chrsz   = 8;  /* bits per input character. 8 - ascii; 16 - unicode      */
/*
 * these are the functions you'll usually want to call
 * they take string arguments and return either hex or base-64 encoded strings
 */
function hex_sha1(s){return binb2hex(core_sha1(str2binb(s),s.length * chrsz));}
function b64_sha1(s){return binb2b64(core_sha1(str2binb(s),s.length * chrsz));}
function str_sha1(s){return binb2str(core_sha1(str2binb(s),s.length * chrsz));}
function hex_hmac_sha1(key, data){ return binb2hex(core_hmac_sha1(key, data));}
function b64_hmac_sha1(key, data){ return binb2b64(core_hmac_sha1(key, data));}
function str_hmac_sha1(key, data){ return binb2str(core_hmac_sha1(key, data));}
/*
 * perform a simple self-test to see if the vm is working
 */
function sha1_vm_test()
{
  return hex_sha1("abc") == "a9993e364706816aba3e25717850c26c9cd0d89d";
}
/*
 * calculate the sha-1 of an array of big-endian words, and a bit length
 */
function core_sha1(x, len)
{
  /* append padding */
  x[len >> 5] |= 0x80 << (24 - len % 32);
  x[((len + 64 >> 9) << 4) + 15] = len;
  var w = array(80);
  var a =  1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d =  271733878;
  var e = -1009589776;
  for(var i = 0; i < x.length; i += 16)
  {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;
    var olde = e;
    for(var j = 0; j < 80; j++)
    {
      if(j < 16) w[j] = x[i + j];
      else w[j] = rol(w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16], 1);
      var t = safe_add(safe_add(rol(a, 5), sha1_ft(j, b, c, d)),
                       safe_add(safe_add(e, w[j]), sha1_kt(j)));
      e = d;
      d = c;
      c = rol(b, 30);
      b = a;
      a = t;
    }
    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
    e = safe_add(e, olde);
  }
  return array(a, b, c, d, e);
}
/*
 * perform the appropriate triplet combination function for the current
 * iteration
 */
function sha1_ft(t, b, c, d)
{
  if(t < 20) return (b & c) | ((~b) & d);
  if(t < 40) return b ^ c ^ d;
  if(t < 60) return (b & c) | (b & d) | (c & d);
  return b ^ c ^ d;
}
/*
 * determine the appropriate additive constant for the current iteration
 */
function sha1_kt(t)
{
  return (t < 20) ?  1518500249 : (t < 40) ?  1859775393 :
         (t < 60) ? -1894007588 : -899497514;
}
/*
 * calculate the hmac-sha1 of a key and some data
 */
function core_hmac_sha1(key, data)
{
  var bkey = str2binb(key);
  if(bkey.length > 16) bkey = core_sha1(bkey, key.length * chrsz);
  var ipad = array(16), opad = array(16);
  for(var i = 0; i < 16; i++)
  {
    ipad[i] = bkey[i] ^ 0x36363636;
    opad[i] = bkey[i] ^ 0x5c5c5c5c;
  }
  var hash = core_sha1(ipad.concat(str2binb(data)), 512 + data.length * chrsz);
  return core_sha1(opad.concat(hash), 512 + 160);
}
/*
 * add integers, wrapping at 2^32. this uses 16-bit operations internally
 * to work around bugs in some js interpreters.
 */
function safe_add(x, y)
{
  var lsw = (x & 0xffff) + (y & 0xffff);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xffff);
}
/*
 * bitwise rotate a 32-bit number to the left.
 */
function rol(num, cnt)
{
  return (num << cnt) | (num >>> (32 - cnt));
}
/*
 * convert an 8-bit or 16-bit string to an array of big-endian words
 * in 8-bit function, characters >255 have their hi-byte silently ignored.
 */
function str2binb(str)
{
  var bin = array();
  var mask = (1 << chrsz) - 1;
  for(var i = 0; i < str.length * chrsz; i += chrsz)
    bin[i>>5] |= (str.charcodeat(i / chrsz) & mask) << (32 - chrsz - i%32);
  return bin;
}
/*
 * convert an array of big-endian words to a string
 */
function binb2str(bin)
{
  var str = "";
  var mask = (1 << chrsz) - 1;
  for(var i = 0; i < bin.length * 32; i += chrsz)
    str += string.fromcharcode((bin[i>>5] >>> (32 - chrsz - i%32)) & mask);
  return str;
}
/*
 * convert an array of big-endian words to a hex string.
 */
function binb2hex(binarray)
{
  var hex_tab = hexcase ? "0123456789abcdef" : "0123456789abcdef";
  var str = "";
  for(var i = 0; i < binarray.length * 4; i++)
  {
    str += hex_tab.charat((binarray[i>>2] >> ((3 - i%4)*8+4)) & 0xf) +
           hex_tab.charat((binarray[i>>2] >> ((3 - i%4)*8  )) & 0xf);
  }
  return str;
}
/*
 * convert an array of big-endian words to a base-64 string
 */
function binb2b64(binarray)
{
  var tab = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwx  yz0123456789+/";
  var str = "";
  for(var i = 0; i < binarray.length * 4; i += 3)
  {
    var triplet = (((binarray[i   >> 2] >> 8 * (3 -  i   %4)) & 0xff) << 16)
                | (((binarray[i+1 >> 2] >> 8 * (3 - (i+1)%4)) & 0xff) << 8 )
                |  ((binarray[i+2 >> 2] >> 8 * (3 - (i+2)%4)) & 0xff);
    for(var j = 0; j < 4; j++)
    {
      if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
      else str += tab.charat((triplet >> 6*(3-j)) & 0x3f);
    }
  }
  return str;
}
</script>
<%
function sha1(data)
    sha1 = hex_sha1(data)
end function
%>
<%
response.write(sha1("abcdef"))
%>

public void processrequest(httpcontext context)
    {
        context.response.write(system.web.security.formsauthentication.hashpasswordforstoringinconfigfile("abcdef", "sha1").tolower());
    }