js md5算法源码及关键数

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原创最新推荐文章于 2026-10-01 11:37:41 发布 687 阅读 AI 写同款· GEO 优化 ›

!function (n) {
    "use strict";

    function d(n, t) {
        var r = (65535 & n) + (65535 & t);
        return (n >> 16) + (t >> 16) + (r >> 16) << 16 | 65535 & r
    }

    function f(n, t, r, e, o, u) {
        return d(function (n, t) {
            return n << t | n >>> 32 - t
        }(d(d(t, n), d(e, u)), o), r)
    }

    function l(n, t, r, e, o, u, c) {
        return f(t & r | ~t & e, n, t, o, u, c)
    }

    function g(n, t, r, e, o, u, c) {
        return f(t & e | r & ~e, n, t, o, u, c)
    }

    function v(n, t, r, e, o, u, c) {
        return f(t ^ r ^ e, n, t, o, u, c)
    }

    function m(n, t, r, e, o, u, c) {
        return f(r ^ (t | ~e), n, t, o, u, c)
    }

    function i(n, t) {
        var r, e, o, u, c;
        n[t >> 5] |= 128 << t % 32, n[14 + (t + 64 >>> 9 << 4)] = t;
        var f = 0x67452301,
            i = -0x10325477,
            a = -0x67452302,
            h = 0x10325476;
        for (r = 0; r < n.length; r += 16) i = m(i = m(i = m(i = m(i = v(i = v(i = v(i = v(i = g(i = g(i = g(i = g(i = l(i = l(i = l(i = l(o = i, a = l(u = a, h = l(c = h, f = l(e = f, i, a, h, n[r], 7, -680876936), i, a, n[r + 1], 12, -389564586), f, i, n[r + 2], 17, 606105819), h, f, n[r + 3], 22, -1044525330), a = l(a, h = l(h, f = l(f, i, a, h, n[r + 4], 7, -176418897), i, a, n[r + 5], 12, 1200080426), f, i, n[r + 6], 17, -1473231341), h, f, n[r + 7], 22, -45705983), a = l(a, h = l(h, f = l(f, i, a, h, n[r + 8], 7, 1770035416), i, a, n[r + 9], 12, -1958414417), f, i, n[r + 10], 17, -42063), h, f, n[r + 11], 22, -1990404162), a = l(a, h = l(h, f = l(f, i, a, h, n[r + 12], 7, 1804603682), i, a, n[r + 13], 12, -40341101), f, i, n[r + 14], 17, -1502002290), h, f, n[r + 15], 22, 1236535329), a = g(a, h = g(h, f = g(f, i, a, h, n[r + 1], 5, -165796510), i, a, n[r + 6], 9, -1069501632), f, i, n[r + 11], 14, 643717713), h, f, n[r], 20, -373897302), a = g(a, h = g(h, f = g(f, i, a, h, n[r + 5], 5, -701558691), i, a, n[r + 10], 9, 38016083), f, i, n[r + 15], 14, -660478335), h, f, n[r + 4], 20, -405537848), a = g(a, h = g(h, f = g(f, i, a, h, n[r + 9], 5, 568446438), i, a, n[r + 14], 9, -1019803690), f, i, n[r + 3], 14, -187363961), h, f, n[r + 8], 20, 1163531501), a = g(a, h = g(h, f = g(f, i, a, h, n[r + 13], 5, -1444681467), i, a, n[r + 2], 9, -51403784), f, i, n[r + 7], 14, 1735328473), h, f, n[r + 12], 20, -1926607734), a = v(a, h = v(h, f = v(f, i, a, h, n[r + 5], 4, -378558), i, a, n[r + 8], 11, -2022574463), f, i, n[r + 11], 16, 1839030562), h, f, n[r + 14], 23, -35309556), a = v(a, h = v(h, f = v(f, i, a, h, n[r + 1], 4, -1530992060), i, a, n[r + 4], 11, 1272893353), f, i, n[r + 7], 16, -155497632), h, f, n[r + 10], 23, -1094730640), a = v(a, h = v(h, f = v(f, i, a, h, n[r + 13], 4, 681279174), i, a, n[r], 11, -358537222), f, i, n[r + 3], 16, -722521979), h, f, n[r + 6], 23, 76029189), a = v(a, h = v(h, f = v(f, i, a, h, n[r + 9], 4, -640364487), i, a, n[r + 12], 11, -421815835), f, i, n[r + 15], 16, 530742520), h, f, n[r + 2], 23, -995338651), a = m(a, h = m(h, f = m(f, i, a, h, n[r], 6, -198630844), i, a, n[r + 7], 10, 1126891415), f, i, n[r + 14], 15, -1416354905), h, f, n[r + 5], 21, -57434055), a = m(a, h = m(h, f = m(f, i, a, h, n[r + 12], 6, 1700485571), i, a, n[r + 3], 10, -1894986606), f, i, n[r + 10], 15, -1051523), h, f, n[r + 1], 21, -2054922799), a = m(a, h = m(h, f = m(f, i, a, h, n[r + 8], 6, 1873313359), i, a, n[r + 15], 10, -30611744), f, i, n[r + 6], 15, -1560198380), h, f, n[r + 13], 21, 1309151649), a = m(a, h = m(h, f = m(f, i, a, h, n[r + 4], 6, -145523070), i, a, n[r + 11], 10, -1120210379), f, i, n[r + 2], 15, 718787259), h, f, n[r + 9], 21, -343485551), f = d(f, e), i = d(i, o), a = d(a, u), h = d(h, c);
        return [f, i, a, h]
    }

    function a(n) {
        var t, r = "",
            e = 32 * n.length;
        for (t = 0; t < e; t += 8) r += String.fromCharCode(n[t >> 5] >>> t % 32 & 255);
        return r
    }

    function h(n) {
        var t, r = [];
        for (r[(n.length >> 2) - 1] = void 0, t = 0; t < r.length; t += 1) r[t] = 0;
        var e = 8 * n.length;
        for (t = 0; t < e; t += 8) r[t >> 5] |= (255 & n.charCodeAt(t / 8)) << t % 32;
        return r
    }

    function e(n) {
        var t, r, e = "0123456789abcdef",
            o = "";
        for (r = 0; r < n.length; r += 1) t = n.charCodeAt(r), o += e.charAt(t >>> 4 & 15) + e.charAt(15 & t);
        return o
    }

    function r(n) {
        return unescape(encodeURIComponent(n))
    }

    function o(n) {
        return function (n) {
            return a(i(h(n), 8 * n.length))
        }(r(n))
    }

    function u(n, t) {
        return function (n, t) {
            var r, e, o = h(n),
                u = [],
                c = [];
            for (u[15] = c[15] = void 0, 16 < o.length && (o = i(o, 8 * n.length)), r = 0; r < 16; r += 1) u[r] = 909522486 ^ o[r], c[r] = 1549556828 ^ o[r];
            return e = i(u.concat(h(t)), 512 + 8 * t.length), a(i(c.concat(e), 640))
        }(r(n), r(t))
    }

    function t(n, t, r) {
        return t ? r ? u(t, n) : function (n, t) {
            return e(u(n, t))
        }(t, n) : r ? o(n) : function (n) {
            return e(o(n))
        }(n)
    }

    "function" == typeof define && define.amd ? define(function () {
        return t
    }) : "object" == typeof module && module.exports ? module.exports = t : n.md5 = t
}(this);


console.log(module.exports('123456'))

关键数字

10进制	16进制	8进制	2进制
1732584193	0x67452301	parseInt('14721221401', 8)	parseInt('1100111010001010010001100000001', 2)
-271733879	-0x10325477	-parseInt("14721221402", 8)	-parseInt("10000001100100101010001110111", 2)
-1732584194	-0x67452302	-parseInt("14721221402", 8)	-parseInt("1100111010001010010001100000010", 2)
271733878	0x10325476	parseInt("2014452166", 8)	parseInt("10000001100100101010001110110", 2)