(function () {
    var C = typeof window === 'undefined' ? require('./Crypto').Crypto : window.Crypto;

    // Shortcut
    var util = C.util;

    // Convert n to unsigned 32-bit integer
    util.u32 = function (n) {
        return n >>> 0;
    };

    // Unsigned 32-bit addition
    util.add = function () {
        var result = this.u32(arguments[0]);
        for (var i = 1; i < arguments.length; i++) {
            result = this.u32(result + this.u32(arguments[i]));
        }
        return result;
    };

    // Unsigned 32-bit multiplication
    util.mult = function (m, n) {
        return this.add((n & 4294901760) * m, (n & 65535) * m);
    };

    // Unsigned 32-bit greater than (>) comparison
    util.gt = function (m, n) {
        return this.u32(m) > this.u32(n);
    };

    // Unsigned 32-bit less than (<) comparison
    util.lt = function (m, n) {
        return this.u32(m) < this.u32(n);
    };
})();