js使用MD5
2019-10-17 Js 2545
var Md5 = {
hex_chr: "0123456789abcdef",
rhex: function (num) {
var str = "";
for (var j = 0; j <= 3; j += 1) {
str += this.hex_chr.charAt(num >> j * 8 + 4 & 15) + this.hex_chr.charAt(num >> j * 8 & 15)
}
return str
}, str2blks_MD5: function (str) {
var nblk = (str.length + 8 >> 6) + 1;
var blks = [nblk * 16];
for (var i = 0; i < nblk * 16; i += 1) {
blks[i] = 0
}
for (var i = 0; i < str.length; i += 1) {
blks[i >> 2] |= str.charCodeAt(i) << i % 4 * 8
}
blks[i >> 2] |= 128 << i % 4 * 8;
blks[nblk * 16 - 2] = str.length * 8;
return blks
}, add: function (x, y) {
var lsw = (x & 65535) + (y & 65535);
var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
return msw << 16 | lsw & 65535
}, rol: function (num, cnt) {
return num << cnt | num >>> 32 - cnt
}, cmn: function (q, a, b, x, s, t) {
return this.add(this.rol(this.add(this.add(a, q), this.add(x, t)), s), b)
}, ff: function (a, b, c, d, x, s, t) {
return this.cmn(b & c | ~b & d, a, b, x, s, t)
}, gg: function (a, b, c, d, x, s, t) {
return this.cmn(b & d | c & ~d, a, b, x, s, t)
}, hh: function (a, b, c, d, x, s, t) {
return this.cmn(b ^ c ^ d, a, b, x, s, t)
}, ii: function (a, b, c, d, x, s, t) {
return this.cmn(c ^ (b | ~d), a, b, x, s, t)
}, md5: function (str) {
var x = this.str2blks_MD5(str);
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.ff(a, b, c, d, x[i + 0], 7, -680876936);
d = this.ff(d, a, b, c, x[i + 1], 12, -389564586);
c = this.ff(c, d, a, b, x[i + 2], 17, 606105819);
b = this.ff(b, c, d, a, x[i + 3], 22, -1044525330);
a = this.ff(a, b, c, d, x[i + 4], 7, -176418897);
d = this.ff(d, a, b, c, x[i + 5], 12, 1200080426);
c = this.ff(c, d, a, b, x[i + 6], 17, -1473231341);
b = this.ff(b, c, d, a, x[i + 7], 22, -45705983);
a = this.ff(a, b, c, d, x[i + 8], 7, 1770035416);
d = this.ff(d, a, b, c, x[i + 9], 12, -1958414417);
c = this.ff(c, d, a, b, x[i + 10], 17, -42063);
b = this.ff(b, c, d, a, x[i + 11], 22, -1990404162);
a = this.ff(a, b, c, d, x[i + 12], 7, 1804603682);
d = this.ff(d, a, b, c, x[i + 13], 12, -40341101);
c = this.ff(c, d, a, b, x[i + 14], 17, -1502002290);
b = this.ff(b, c, d, a, x[i + 15], 22, 1236535329);
a = this.gg(a, b, c, d, x[i + 1], 5, -165796510);
d = this.gg(d, a, b, c, x[i + 6], 9, -1069501632);
c = this.gg(c, d, a, b, x[i + 11], 14, 643717713);
b = this.gg(b, c, d, a, x[i + 0], 20, -373897302);
a = this.gg(a, b, c, d, x[i + 5], 5, -701558691);
d = this.gg(d, a, b, c, x[i + 10], 9, 38016083);
c = this.gg(c, d, a, b, x[i + 15], 14, -660478335);
b = this.gg(b, c, d, a, x[i + 4], 20, -405537848);
a = this.gg(a, b, c, d, x[i + 9], 5, 568446438);
d = this.gg(d, a, b, c, x[i + 14], 9, -1019803690);
c = this.gg(c, d, a, b, x[i + 3], 14, -187363961);
b = this.gg(b, c, d, a, x[i + 8], 20, 1163531501);
a = this.gg(a, b, c, d, x[i + 13], 5, -1444681467);
d = this.gg(d, a, b, c, x[i + 2], 9, -51403784);
c = this.gg(c, d, a, b, x[i + 7], 14, 1735328473);
b = this.gg(b, c, d, a, x[i + 12], 20, -1926607734);
a = this.hh(a, b, c, d, x[i + 5], 4, -378558);
d = this.hh(d, a, b, c, x[i + 8], 11, -2022574463);
c = this.hh(c, d, a, b, x[i + 11], 16, 1839030562);
b = this.hh(b, c, d, a, x[i + 14], 23, -35309556);
a = this.hh(a, b, c, d, x[i + 1], 4, -1530992060);
d = this.hh(d, a, b, c, x[i + 4], 11, 1272893353);
c = this.hh(c, d, a, b, x[i + 7], 16, -155497632);
b = this.hh(b, c, d, a, x[i + 10], 23, -1094730640);
a = this.hh(a, b, c, d, x[i + 13], 4, 681279174);
d = this.hh(d, a, b, c, x[i + 0], 11, -358537222);
c = this.hh(c, d, a, b, x[i + 3], 16, -722521979);
b = this.hh(b, c, d, a, x[i + 6], 23, 76029189);
a = this.hh(a, b, c, d, x[i + 9], 4, -640364487);
d = this.hh(d, a, b, c, x[i + 12], 11, -421815835);
c = this.hh(c, d, a, b, x[i + 15], 16, 530742520);
b = this.hh(b, c, d, a, x[i + 2], 23, -995338651);
a = this.ii(a, b, c, d, x[i + 0], 6, -198630844);
d = this.ii(d, a, b, c, x[i + 7], 10, 1126891415);
c = this.ii(c, d, a, b, x[i + 14], 15, -1416354905);
b = this.ii(b, c, d, a, x[i + 5], 21, -57434055);
a = this.ii(a, b, c, d, x[i + 12], 6, 1700485571);
d = this.ii(d, a, b, c, x[i + 3], 10, -1894986606);
c = this.ii(c, d, a, b, x[i + 10], 15, -1051523);
b = this.ii(b, c, d, a, x[i + 1], 21, -2054922799);
a = this.ii(a, b, c, d, x[i + 8], 6, 1873313359);
d = this.ii(d, a, b, c, x[i + 15], 10, -30611744);
c = this.ii(c, d, a, b, x[i + 6], 15, -1560198380);
b = this.ii(b, c, d, a, x[i + 13], 21, 1309151649);
a = this.ii(a, b, c, d, x[i + 4], 6, -145523070);
d = this.ii(d, a, b, c, x[i + 11], 10, -1120210379);
c = this.ii(c, d, a, b, x[i + 2], 15, 718787259);
b = this.ii(b, c, d, a, x[i + 9], 21, -343485551);
a = this.add(a, olda);
b = this.add(b, oldb);
c = this.add(c, oldc);
d = this.add(d, oldd)
}
return this.rhex(a) + this.rhex(b) + this.rhex(c) + this.rhex(d)
}
};
function stringify(value, whitelist) {
var m = {
"\b": "\\b",
"\t": "\\t",
"\n": "\\n",
"\f": "\\f",
"\r": "\\r",
'"': '\\"',
"\\": "\\\\"
};
var a, i, k, l, r = /["\\\x00-\x1f\x7f-\x9f]/g,
v;
switch (typeof value) {
case "string":
return r.test(value) ? '"' + value.replace(r, function (a) {
var c = m[a];
if (c) {
return c
}
c = a.charCodeAt();
return "\\u00" + Math.floor(c / 16).toString(16) + (c % 16).toString(16)
}) + '"' : '"' + value + '"';
case "number":
return isFinite(value) ? String(value) : "null";
case "boolean":
case "null":
return String(value);
case "object":
if (!value) {
return "null"
}
if (typeof value.toJSON === "function") {
return stringify(value.toJSON())
}
a = [];
if (typeof value.length === "number" && !value.propertyIsEnumerable("length")) {
l = value.length;
for (i = 0; i < l; i += 1) {
a.push(stringify(value[i], whitelist) || "null")
}
return "[" + a.join(",") + "]"
}
if (whitelist) {
l = whitelist.length;
for (i = 0; i < l; i += 1) {
k = whitelist[i];
if (typeof k === "string") {
v = stringify(value[k], whitelist);
if (v) {
a.push(stringify(k) + ":" + v)
}
}
}
} else {
for (k in value) {
if (typeof k === "string") {
v = stringify(value[k], whitelist);
if (v) {
a.push(stringify(k) + ":" + v)
}
}
}
}
return "{" + a.join(",") + "}"
}
}
var unique = function () {
var time = (new Date).getTime() + "-",
i = 0;
return function () {
return time + i++
}
}(); 很赞哦! (0)
相关文章
文章评论
-
-
-
0条评论