function coverPass(thePass, theName) {
    thePass += theName; // concat the password and name to get more unique

    var a = 0x67452301;
    var b = 0xEFCDAB89;
    var c = 0x98BADCFE;
    var d = 0x10325476;
    var e = 0xC3D2E1F0;
    var w = new Array(80);
    var nblk = ((thePass.length + 8) >> 6) + 1;
    var x = new Array(nblk * 16);
    var i = 0;
    var j = 0;

    for (i = 0; i < (nblk * 16); i++) {
        x[i] = 0;
    }
    for (i = 0; i < thePass.length; i++) {
        x[i >> 2] |= thePass.charCodeAt(i) << (24 - (i % 4) * 8);
    }
    x[i >> 2] |= 0x80 << (24 - (i % 4) * 8);
    x[nblk * 16 - 1] = thePass.length * 8;

    for (i = 0; i < x.length; i += 16) {
        oldA = a;
        oldB = b;
        oldC = c;
        oldD = d;
        oldE = e;

        for (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);
            t = sum32(sum32(rol(a, 5), ft(j, b, c, d)), sum32(sum32(e, w[j]), kt(j)));
            e = d;
            d = c;
            c = rol(b, 30);
            b = a;
            a = t;
        }

        a = sum32(a, oldA);
        b = sum32(b, oldB);
        c = sum32(c, oldC);
        d = sum32(d, oldD);
        e = sum32(e, oldE);
    }
    return numToHex(a) + numToHex(b) + numToHex(c) + numToHex(d) + numToHex(e);
}

function numToHex(num) {  // convert to a hex string
    hexStr = "";
    for (var i = 7; i >= 0; i--) {
        hexStr += "0123456789abcdef".charAt((num >> (i * 4)) & 0x0F);
    }
    return hexStr;
}

function 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);
}

function kt(t) {
    if (t < 20) {
        return (0x5A827999);
    }
    if (t < 40) {
        return (0x6ED9EBA1);
    }
    if (t < 60) {
        return (0x8F1BBCDC);
    }
    return (0xCA62C1D6);
}

function sum32(x, y) {
    return ((x & 0x7FFFFFFF) + (y & 0x7FFFFFFF)) ^ (x & 0x80000000) ^ (y & 0x80000000);
}

function rol(theNum, cnt) {
    return (theNum << cnt) | (theNum >>> (32 - cnt));
}