一个JS问题

Question

用的jQuery v1.7.1,
问下输出的_token为什么是138b8ed9c6eaeeb01ca5665da2ad4059_625854f3c867f6b57ced5346774d9d73?

演示地址:http://t.zy62.com/1.html ,点击查询按钮.控制台console会输出138b8ed9c6eaeeb01ca5665da2ad4059_625854f3c867f6b57ced5346774d9d73
这是怎么转换的?
c = "vvl"

function GetTaobaoNickInfo() {
    _token = $.To('625854f3c867f6b57ced5346774d9d73' + c + "8") + "_" + '625854f3c867f6b57ced5346774d9d73',
    console.log(_token);
}

JS文件地址:http://7xnafb.com1.z0.glb.clouddn.com/taobao.js

jQuery v1.7.1地址:http://7xnafb.com1.z0.glb.clouddn.com/jquery1.7.1.js

Answer 1

那个To方法是在jquery.js最后部分中定义的，应该不是jquery的标准内容，而是某人加进去后压缩过的，应该是某种编码或者加密的算法。

!function (a) {
    var k,
    l,
    m,
    n,
    o,
    b = function (a, b) {
        return a << b | a >>> 32 - b
    },
    c = function (a, b) {
        var c,
        d,
        e,
        f,
        g;
        return e = 2147483648 & a,
        f = 2147483648 & b,
        c = 1073741824 & a,
        d = 1073741824 & b,
        g = (1073741823 & a) + (1073741823 & b),
        c & d ? 2147483648^g^e^f : c | d ? 1073741824 & g ? 3221225472^g^e^f : 1073741824^g^e^f : g^e^f
    },
    d = 0,
    e = function (a, b, c) {
        return a & b | ~a & c
    },
    f = function (a, b, c) {
        return a & c | b & ~c
    },
    g = function (a, b, c) {
        return a^b^c
    },
    h = function (a, b, c) {
        return b^(a | ~c)
    },
    i = function (a, d, f, g, h, i, j) {
        return a = c(a, c(c(e(d, f, g), h), j)),
        c(b(a, i), d)
    },
    j = function (a, d, e, g, h, i, j) {
        return a = c(a, c(c(f(d, e, g), h), j)),
        c(b(a, i), d)
    };
    d++,
    k = function (a, d, e, f, h, i, j) {
        return a = c(a, c(c(g(d, e, f), h), j)),
        c(b(a, i), d)
    },
    l = function (a, d, e, f, g, i, j) {
        return a = c(a, c(c(h(d, e, f), g), j)),
        c(b(a, i), d)
    },
    m = function (a) {
        for (var b, c = a.length, d = c + 8, e = (d - d % 64) / 64, f = 16 * (e + 1), g = Array(f - 1), h = 0, i = 0; c > i; )
            b = (i - i % 4) / 4, h = 8 * (i % 4), g[b] = g[b] | a.charCodeAt(i) << h, i++;
        return b = (i - i % 4) / 4,
        h = 8 * (i % 4),
        g[b] = g[b] | 128 << h,
        g[f - 2] = c << 3,
        g[f - 1] = c >>> 29,
        g
    },
    n = function (a) {
        var d,
        e,
        b = "",
        c = "";
        for (e = 0; 3 >= e; e++)
            d = 255 & a >>> 8 * e, c = "0" + d.toString(16), b += c.substr(c.length - 2, 2);
        return b
    },
    o = function (a) {
        var b,
        c,
        d;
        for (a = a.replace(/\x0d\x0a/g, "\n"), b = "", c = 0; c < a.length; c++)
            d = a.charCodeAt(c), 128 > d ? b += String.fromCharCode(d) : d > 127 && 2048 > d ? (b += String.fromCharCode(192 | d >> 6), b += String.fromCharCode(128 | 63 & d)) : (b += String.fromCharCode(224 | d >> 12), b += String.fromCharCode(128 | 63 & d >> 6), b += String.fromCharCode(128 | 63 & d));
        return b
    },
    a.extend({
        To : function (a) {
            var e,
            f,
            g,
            h,
            p,
            q,
            r,
            s,
            t,
            K,
            b = Array(),
            u = 7,
            v = 12,
            w = 17,
            x = 22,
            y = 5,
            z = 9,
            A = 14,
            B = 20,
            C = 4,
            D = 11,
            E = 16,
            F = 23,
            G = 6,
            H = 10,
            I = 15,
            J = 21;
            for (a = o(a + d), b = m(a), q = 1732584193, r = 4023233417, s = 2562383102, t = 271733878, e = 0; e < b.length; e += 16)
                f = q, g = r, h = s, p = t, q = i(q, r, s, t, b[e + 0], u, 3614090360), t = i(t, q, r, s, b[e + 1], v, 3905402710), s = i(s, t, q, r, b[e + 2], w, 606105819), r = i(r, s, t, q, b[e + 3], x, 3250441966), q = i(q, r, s, t, b[e + 4], u, 4118548399), t = i(t, q, r, s, b[e + 5], v, 1200080426), s = i(s, t, q, r, b[e + 6], w, 2821735955), r = i(r, s, t, q, b[e + 7], x, 4249261313), q = i(q, r, s, t, b[e + 8], u, 1770035416), t = i(t, q, r, s, b[e + 9], v, 2336552879), s = i(s, t, q, r, b[e + 10], w, 4294925233), r = i(r, s, t, q, b[e + 11], x, 2304563134), q = i(q, r, s, t, b[e + 12], u, 1804603682), t = i(t, q, r, s, b[e + 13], v, 4254626195), s = i(s, t, q, r, b[e + 14], w, 2792965006), r = i(r, s, t, q, b[e + 15], x, 1236535329), q = j(q, r, s, t, b[e + 1], y, 4129170786), t = j(t, q, r, s, b[e + 6], z, 3225465664), s = j(s, t, q, r, b[e + 11], A, 643717713), r = j(r, s, t, q, b[e + 0], B, 3921069994), q = j(q, r, s, t, b[e + 5], y, 3593408605), t = j(t, q, r, s, b[e + 10], z, 38016083), s = j(s, t, q, r, b[e + 15], A, 3634488961), r = j(r, s, t, q, b[e + 4], B, 3889429448), q = j(q, r, s, t, b[e + 9], y, 568446438), t = j(t, q, r, s, b[e + 14], z, 3275163606), s = j(s, t, q, r, b[e + 3], A, 4107603335), r = j(r, s, t, q, b[e + 8], B, 1163531501), q = j(q, r, s, t, b[e + 13], y, 2850285829), t = j(t, q, r, s, b[e + 2], z, 4243563512), s = j(s, t, q, r, b[e + 7], A, 1735328473), r = j(r, s, t, q, b[e + 12], B, 2368359562), q = k(q, r, s, t, b[e + 5], C, 4294588738), t = k(t, q, r, s, b[e + 8], D, 2272392833), s = k(s, t, q, r, b[e + 11], E, 1839030562), r = k(r, s, t, q, b[e + 14], F, 4259657740), q = k(q, r, s, t, b[e + 1], C, 2763975236), t = k(t, q, r, s, b[e + 4], D, 1272893353), s = k(s, t, q, r, b[e + 7], E, 4139469664), r = k(r, s, t, q, b[e + 10], F, 3200236656), q = k(q, r, s, t, b[e + 13], C, 681279174), t = k(t, q, r, s, b[e + 0], D, 3936430074), s = k(s, t, q, r, b[e + 3], E, 3572445317), r = k(r, s, t, q, b[e + 6], F, 76029189), q = k(q, r, s, t, b[e + 9], C, 3654602809), t = k(t, q, r, s, b[e + 12], D, 3873151461), s = k(s, t, q, r, b[e + 15], E, 530742520), r = k(r, s, t, q, b[e + 2], F, 3299628645), q = l(q, r, s, t, b[e + 0], G, 4096336452), t = l(t, q, r, s, b[e + 7], H, 1126891415), s = l(s, t, q, r, b[e + 14], I, 2878612391), r = l(r, s, t, q, b[e + 5], J, 4237533241), q = l(q, r, s, t, b[e + 12], G, 1700485571), t = l(t, q, r, s, b[e + 3], H, 2399980690), s = l(s, t, q, r, b[e + 10], I, 4293915773), r = l(r, s, t, q, b[e + 1], J, 2240044497), q = l(q, r, s, t, b[e + 8], G, 1873313359), t = l(t, q, r, s, b[e + 15], H, 4264355552), s = l(s, t, q, r, b[e + 6], I, 2734768916), r = l(r, s, t, q, b[e + 13], J, 1309151649), q = l(q, r, s, t, b[e + 4], G, 4149444226), t = l(t, q, r, s, b[e + 11], H, 3174756917), s = l(s, t, q, r, b[e + 2], I, 718787259), r = l(r, s, t, q, b[e + 9], J, 3951481745), q = c(q, f), r = c(r, g), s = c(s, h), t = c(t, p);
            return K = n(q) + n(r) + n(s) + n(t),
            K.toLowerCase()
        }
    })
}
(jQuery);

注意看这部分：

a.extend({
        To : function (a) {
            var e,
            

最好是问原作者是干嘛的。