;
!(function () {
    var MD5 = function (hexcase) {
        this.hexcase = !hexcase ? 0 : 1;
        /* hex output format. 0 - lowercase; 1 - uppercase */
        this.b64pad = "";
        /* base-64 pad character. "=" for strict RFC compliance */
        this.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
     */
    MD5.prototype.hex_md5 = function (s) {
        return this.binl2hex(this.core_md5(this.str2binl(s), s.length * this.chrsz));
    };

    MD5.prototype.hex_md5_salt = function (s) {
        var md5ed = this.hex_md5(s);

        var items1 = [];
        var items2 = [];
        for (var i = 0; i < md5ed.length; i++) {
            if (i % 2 === 0) {
                items1.push(md5ed.charAt(i));
            } else {
                items2.push(md5ed.charAt(i));
            }
        }
        var result = ":" + items1.join("") + items2.join("");
        return result;
    };

    MD5.prototype.b64_md5 = function (s) {
        return this.binl2b64(this.core_md5(this.str2binl(s), s.length * this.chrsz));
    };

    MD5.prototype.hex_hmac_md5 = function (key, data) {
        return this.binl2hex(this.core_hmac_md5(key, data));
    };

    MD5.prototype.b64_hmac_md5 = function (key, data) {
        return this.binl2b64(this.core_hmac_md5(key, data));
    };

    /* Backwards compatibility - same as hex_md5() */
    MD5.prototype.calcMD5 = function (s) {
        return this.binl2hex(this.core_md5(this.str2binl(s), s.length * this.chrsz));
    };

    MD5.prototype.core_md5 = function (x, len) {
        /* append padding */
        x[len >> 5] |= 0x80 << ((len) % 32);
        x[(((len + 64) >>> 9) << 4) + 14] = len;

        var a = 1732584193;
        var b = -271733879;
        var c = -1732584194;
        var d = 271733878;

        for (var i = 0; i < x.length; i += 16) {
            var olda = a;
            var oldb = b;
            var oldc = c;
            var oldd = d;

            a = this.md5_ff(a, b, c, d, x[i + 0], 7, -680876936);
            d = this.md5_ff(d, a, b, c, x[i + 1], 12, -389564586);
            c = this.md5_ff(c, d, a, b, x[i + 2], 17, 606105819);
            b = this.md5_ff(b, c, d, a, x[i + 3], 22, -1044525330);
            a = this.md5_ff(a, b, c, d, x[i + 4], 7, -176418897);
            d = this.md5_ff(d, a, b, c, x[i + 5], 12, 1200080426);
            c = this.md5_ff(c, d, a, b, x[i + 6], 17, -1473231341);
            b = this.md5_ff(b, c, d, a, x[i + 7], 22, -45705983);
            a = this.md5_ff(a, b, c, d, x[i + 8], 7, 1770035416);
            d = this.md5_ff(d, a, b, c, x[i + 9], 12, -1958414417);
            c = this.md5_ff(c, d, a, b, x[i + 10], 17, -42063);
            b = this.md5_ff(b, c, d, a, x[i + 11], 22, -1990404162);
            a = this.md5_ff(a, b, c, d, x[i + 12], 7, 1804603682);
            d = this.md5_ff(d, a, b, c, x[i + 13], 12, -40341101);
            c = this.md5_ff(c, d, a, b, x[i + 14], 17, -1502002290);
            b = this.md5_ff(b, c, d, a, x[i + 15], 22, 1236535329);

            a = this.md5_gg(a, b, c, d, x[i + 1], 5, -165796510);
            d = this.md5_gg(d, a, b, c, x[i + 6], 9, -1069501632);
            c = this.md5_gg(c, d, a, b, x[i + 11], 14, 643717713);
            b = this.md5_gg(b, c, d, a, x[i + 0], 20, -373897302);
            a = this.md5_gg(a, b, c, d, x[i + 5], 5, -701558691);
            d = this.md5_gg(d, a, b, c, x[i + 10], 9, 38016083);
            c = this.md5_gg(c, d, a, b, x[i + 15], 14, -660478335);
            b = this.md5_gg(b, c, d, a, x[i + 4], 20, -405537848);
            a = this.md5_gg(a, b, c, d, x[i + 9], 5, 568446438);
            d = this.md5_gg(d, a, b, c, x[i + 14], 9, -1019803690);
            c = this.md5_gg(c, d, a, b, x[i + 3], 14, -187363961);
            b = this.md5_gg(b, c, d, a, x[i + 8], 20, 1163531501);
            a = this.md5_gg(a, b, c, d, x[i + 13], 5, -1444681467);
            d = this.md5_gg(d, a, b, c, x[i + 2], 9, -51403784);
            c = this.md5_gg(c, d, a, b, x[i + 7], 14, 1735328473);
            b = this.md5_gg(b, c, d, a, x[i + 12], 20, -1926607734);

            a = this.md5_hh(a, b, c, d, x[i + 5], 4, -378558);
            d = this.md5_hh(d, a, b, c, x[i + 8], 11, -2022574463);
            c = this.md5_hh(c, d, a, b, x[i + 11], 16, 1839030562);
            b = this.md5_hh(b, c, d, a, x[i + 14], 23, -35309556);
            a = this.md5_hh(a, b, c, d, x[i + 1], 4, -1530992060);
            d = this.md5_hh(d, a, b, c, x[i + 4], 11, 1272893353);
            c = this.md5_hh(c, d, a, b, x[i + 7], 16, -155497632);
            b = this.md5_hh(b, c, d, a, x[i + 10], 23, -1094730640);
            a = this.md5_hh(a, b, c, d, x[i + 13], 4, 681279174);
            d = this.md5_hh(d, a, b, c, x[i + 0], 11, -358537222);
            c = this.md5_hh(c, d, a, b, x[i + 3], 16, -722521979);
            b = this.md5_hh(b, c, d, a, x[i + 6], 23, 76029189);
            a = this.md5_hh(a, b, c, d, x[i + 9], 4, -640364487);
            d = this.md5_hh(d, a, b, c, x[i + 12], 11, -421815835);
            c = this.md5_hh(c, d, a, b, x[i + 15], 16, 530742520);
            b = this.md5_hh(b, c, d, a, x[i + 2], 23, -995338651);

            a = this.md5_ii(a, b, c, d, x[i + 0], 6, -198630844);
            d = this.md5_ii(d, a, b, c, x[i + 7], 10, 1126891415);
            c = this.md5_ii(c, d, a, b, x[i + 14], 15, -1416354905);
            b = this.md5_ii(b, c, d, a, x[i + 5], 21, -57434055);
            a = this.md5_ii(a, b, c, d, x[i + 12], 6, 1700485571);
            d = this.md5_ii(d, a, b, c, x[i + 3], 10, -1894986606);
            c = this.md5_ii(c, d, a, b, x[i + 10], 15, -1051523);
            b = this.md5_ii(b, c, d, a, x[i + 1], 21, -2054922799);
            a = this.md5_ii(a, b, c, d, x[i + 8], 6, 1873313359);
            d = this.md5_ii(d, a, b, c, x[i + 15], 10, -30611744);
            c = this.md5_ii(c, d, a, b, x[i + 6], 15, -1560198380);
            b = this.md5_ii(b, c, d, a, x[i + 13], 21, 1309151649);
            a = this.md5_ii(a, b, c, d, x[i + 4], 6, -145523070);
            d = this.md5_ii(d, a, b, c, x[i + 11], 10, -1120210379);
            c = this.md5_ii(c, d, a, b, x[i + 2], 15, 718787259);
            b = this.md5_ii(b, c, d, a, x[i + 9], 21, -343485551);

            a = this.safe_add(a, olda);
            b = this.safe_add(b, oldb);
            c = this.safe_add(c, oldc);
            d = this.safe_add(d, oldd);
        }
        return Array(a, b, c, d);

    };

    /*
     * These functions implement the four basic operations the algorithm uses.
     */
    MD5.prototype.md5_cmn = function (q, a, b, x, s, t) {
        return this.safe_add(this.bit_rol(this.safe_add(this.safe_add(a, q), this.safe_add(x, t)), s), b);
    };
    MD5.prototype.md5_ff = function (a, b, c, d, x, s, t) {
        return this.md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
    };
    MD5.prototype.md5_gg = function (a, b, c, d, x, s, t) {
        return this.md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
    };
    MD5.prototype.md5_hh = function (a, b, c, d, x, s, t) {
        return this.md5_cmn(b ^ c ^ d, a, b, x, s, t);
    };
    MD5.prototype.md5_ii = function (a, b, c, d, x, s, t) {
        return this.md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
    };

    /*
     * Calculate the HMAC-MD5, of a key and some data
     */
    MD5.prototype.core_hmac_md5 = function (key, data) {
        var bkey = this.str2binl(key);
        if (bkey.length > 16)
            bkey = this.core_md5(bkey, key.length * this.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 = this.core_md5(ipad.concat(this.str2binl(data)), 512 + data.length * this.chrsz);
        return this.core_md5(opad.concat(hash), 512 + 128);
    };

    /*
     * Add integers, wrapping at 2^32. This uses 16-bit operations internally
     * to work around bugs in some JS interpreters.
     */
    MD5.prototype.safe_add = function (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.
     */
    MD5.prototype.bit_rol = function (num, cnt) {
        return (num << cnt) | (num >>> (32 - cnt));
    };

    /*
     * Convert a string to an array of little-endian words
     * If chrsz is ASCII, characters >255 have their hi-byte silently ignored.
     */
    MD5.prototype.str2binl = function (str) {
        var bin = Array();
        var mask = (1 << this.chrsz) - 1;
        for (var i = 0; i < str.length * this.chrsz; i += this.chrsz)
            bin[i >> 5] |= (str.charCodeAt(i / this.chrsz) & mask) << (i % 32);
        return bin;
    };

    /*
     * Convert an array of little-endian words to a hex string.
     */
    MD5.prototype.binl2hex = function (binarray) {
        var hex_tab = this.hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
        var str = "";
        for (var i = 0; i < binarray.length * 4; i++) {
            str += hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8 + 4)) & 0xF)
                + hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8)) & 0xF);
        }
        return str;
    };

    /*
     * Convert an array of little-endian words to a base-64 string
     */
    MD5.prototype.binl2b64 = function (binarray) {
        var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
        var str = "";
        for (var i = 0; i < binarray.length * 4; i += 3) {
            var triplet = (((binarray[i >> 2] >> 8 * (i % 4)) & 0xFF) << 16)
                | (((binarray[i + 1 >> 2] >> 8 * ((i + 1) % 4)) & 0xFF) << 8)
                | ((binarray[i + 2 >> 2] >> 8 * ((i + 2) % 4)) & 0xFF);
            for (var j = 0; j < 4; j++) {
                if (i * 8 + j * 6 > binarray.length * 32)
                    str += this.b64pad;
                else
                    str += tab.charAt((triplet >> 6 * (3 - j)) & 0x3F);
            }
        }
        return str;
    };
    BI.MD5 = new MD5();
})();