function PasswordHash(s)
    {
	    var chrsz   = 8;

    	function safe_add (x, y)
    	{
		    var lsw = (x & 0xFFFF) + (y & 0xFFFF);
		    var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
		    return (msw << 16) | (lsw & 0xFFFF);
	    }

	    function S (X, n) { return ( X >>> n ) | (X << (32 - n)); }
	    function R (X, n) { return ( X >>> n ); }
	    function Ch(x, y, z) { return ((x & y) ^ ((~x) & z)); }
	    function Maj(x, y, z) { return ((x & y) ^ (x & z) ^ (y & z)); }
	    function Sigma0256(x) { return (S(x, 2) ^ S(x, 13) ^ S(x, 22)); }
	    function Sigma1256(x) { return (S(x, 6) ^ S(x, 11) ^ S(x, 25)); }
	    function Gamma0256(x) { return (S(x, 7) ^ S(x, 18) ^ R(x, 3)); }
	    function Gamma1256(x) { return (S(x, 17) ^ S(x, 19) ^ R(x, 10)); }

	    function core_sha256 (m, l)
	    {
		    var K = new Array(0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5, 0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5, 0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3, 0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174, 0xE49B69C1, 0xEFBE4786, 0xFC19DC6, 0x240CA1CC, 0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA, 0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7, 0xC6E00BF3, 0xD5A79147, 0x6CA6351, 0x14292967, 0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13, 0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85, 0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3, 0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070, 0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5, 0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3, 0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208, 0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2);
		    var HASH = new Array(0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19);
		    var W = new Array(64);
		    var a, b, c, d, e, f, g, h, i, j;
		    var T1, T2;

    		m[l >> 5] |= 0x80 << (24 - l % 32);
		    m[((l + 64 >> 9) << 4) + 15] = l;

    		for ( var i = 0; i<m.length; i+=16 )
    		{
		    	a = HASH[0];
			    b = HASH[1];
			    c = HASH[2];
    			d = HASH[3];
		    	e = HASH[4];
			    f = HASH[5];
			    g = HASH[6];
			    h = HASH[7];

			    for ( var j = 0; j<64; j++) {
				    if (j < 16) W[j] = m[j + i];
				    else W[j] = safe_add(safe_add(safe_add(Gamma1256(W[j - 2]), W[j - 7]), Gamma0256(W[j - 15])), W[j - 16]);

				    T1 = safe_add(safe_add(safe_add(safe_add(h, Sigma1256(e)), Ch(e, f, g)), K[j]), W[j]);
				    T2 = safe_add(Sigma0256(a), Maj(a, b, c));

				    h = g;
				    g = f;
				    f = e;
				    e = safe_add(d, T1);
				    d = c;
				    c = b;
				    b = a;
				    a = safe_add(T1, T2);
			    }

    			HASH[0] = safe_add(a, HASH[0]);
		    	HASH[1] = safe_add(b, HASH[1]);
			    HASH[2] = safe_add(c, HASH[2]);
			    HASH[3] = safe_add(d, HASH[3]);
			    HASH[4] = safe_add(e, HASH[4]);
			    HASH[5] = safe_add(f, HASH[5]);
			    HASH[6] = safe_add(g, HASH[6]);
			    HASH[7] = safe_add(h, HASH[7]);
		    }
		    return HASH;
	    }

	    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) << (24 - i%32);
		    }
		    return bin;
	    }

	    function binb2hex (binarray)
	    {
		    var hex_tab = "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;
	    }

	    return binb2hex(core_sha256(str2binb(s), s.length * chrsz));
    }