/*
* JavaScript MD5
* https://github.com/blueimp/JavaScript-MD5
*
* Copyright 2011, Sebastian Tschan
* https://blueimp.net
*
* Licensed under the MIT license:
* https://opensource.org/licenses/MIT
*
* Based on
* A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
* Digest Algorithm, as defined in RFC 1321.
* Version 2.2 Copyright (C) Paul Johnston 1999 - 2009
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
* Distributed under the BSD License
* See http://pajhome.org.uk/crypt/md5 for more info.
*/
// Add integers, wrapping at 2^32.
// This uses 16-bit operations internally to work around bugs in interpreters.
function safeAdd(x, y) {
let lsw = (x & 0xffff) + (y & 0xffff);
let msw = (x >> 16) + (y >> 16) + (lsw >> 16);
return (msw << 16) | (lsw & 0xffff);
}
// Bitwise rotate a 32-bit number to the left.
function bitRotateLeft(num, cnt) {
return (num << cnt) | (num >>> (32 - cnt));
}
// Basic operation the algorithm uses.
function md5cmn(q, a, b, x, s, t) {
return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b);
}
// Basic operation the algorithm uses.
function md5ff(a, b, c, d, x, s, t) {
return md5cmn((b & c) | (~b & d), a, b, x, s, t);
}
// Basic operation the algorithm uses.
function md5gg(a, b, c, d, x, s, t) {
return md5cmn((b & d) | (c & ~d), a, b, x, s, t);
}
// Basic operation the algorithm uses.
function md5hh(a, b, c, d, x, s, t) {
return md5cmn(b ^ c ^ d, a, b, x, s, t);
}
// Basic operation the algorithm uses.
function md5ii(a, b, c, d, x, s, t) {
return md5cmn(c ^ (b | ~d), a, b, x, s, t);
}
// Calculate the MD5 of an array of little-endian words, and a bit length.
function binlMD5(x, len) {
/* append padding */
x[len >> 5] |= 0x80 << len % 32;
x[(((len + 64) >>> 9) << 4) + 14] = len;
let i;
let olda;
let oldb;
let oldc;
let oldd;
let a = 1732584193;
let b = -271733879;
let c = -1732584194;
let d = 271733878;
for (i = 0; i < x.length; i += 16) {
olda = a;
oldb = b;
oldc = c;
oldd = d;
a = md5ff(a, b, c, d, x[i], 7, -680876936);
d = md5ff(d, a, b, c, x[i + 1], 12, -389564586);
c = md5ff(c, d, a, b, x[i + 2], 17, 606105819);
b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330);
a = md5ff(a, b, c, d, x[i + 4], 7, -176418897);
d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426);
c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341);
b = md5ff(b, c, d, a, x[i + 7], 22, -45705983);
a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416);
d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417);
c = md5ff(c, d, a, b, x[i + 10], 17, -42063);
b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162);
a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682);
d = md5ff(d, a, b, c, x[i + 13], 12, -40341101);
c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290);
b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329);
a = md5gg(a, b, c, d, x[i + 1], 5, -165796510);
d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632);
c = md5gg(c, d, a, b, x[i + 11], 14, 643717713);
b = md5gg(b, c, d, a, x[i], 20, -373897302);
a = md5gg(a, b, c, d, x[i + 5], 5, -701558691);
d = md5gg(d, a, b, c, x[i + 10], 9, 38016083);
c = md5gg(c, d, a, b, x[i + 15], 14, -660478335);
b = md5gg(b, c, d, a, x[i + 4], 20, -405537848);
a = md5gg(a, b, c, d, x[i + 9], 5, 568446438);
d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690);
c = md5gg(c, d, a, b, x[i + 3], 14, -187363961);
b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501);
a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467);
d = md5gg(d, a, b, c, x[i + 2], 9, -51403784);
c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473);
b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734);
a = md5hh(a, b, c, d, x[i + 5], 4, -378558);
d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463);
c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562);
b = md5hh(b, c, d, a, x[i + 14], 23, -35309556);
a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060);
d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353);
c = md5hh(c, d, a, b, x[i + 7], 16, -155497632);
b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640);
a = md5hh(a, b, c, d, x[i + 13], 4, 681279174);
d = md5hh(d, a, b, c, x[i], 11, -358537222);
c = md5hh(c, d, a, b, x[i + 3], 16, -722521979);
b = md5hh(b, c, d, a, x[i + 6], 23, 76029189);
a = md5hh(a, b, c, d, x[i + 9], 4, -640364487);
d = md5hh(d, a, b, c, x[i + 12], 11, -421815835);
c = md5hh(c, d, a, b, x[i + 15], 16, 530742520);
b = md5hh(b, c, d, a, x[i + 2], 23, -995338651);
a = md5ii(a, b, c, d, x[i], 6, -198630844);
d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415);
c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905);
b = md5ii(b, c, d, a, x[i + 5], 21, -57434055);
a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571);
d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606);
c = md5ii(c, d, a, b, x[i + 10], 15, -1051523);
b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799);
a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359);
d = md5ii(d, a, b, c, x[i + 15], 10, -30611744);
c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380);
b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649);
a = md5ii(a, b, c, d, x[i + 4], 6, -145523070);
d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379);
c = md5ii(c, d, a, b, x[i + 2], 15, 718787259);
b = md5ii(b, c, d, a, x[i + 9], 21, -343485551);
a = safeAdd(a, olda);
b = safeAdd(b, oldb);
c = safeAdd(c, oldc);
d = safeAdd(d, oldd);
}
return [a, b, c, d];
}
// Convert an array of little-endian words to a string
function binl2rstr(input) {
let i;
let output = '';
let length32 = input.length * 32;
for (i = 0; i < length32; i += 8) {
output += String.fromCharCode((input[i >> 5] >>> i % 32) & 0xff);
}
return output;
}
// Convert a raw string to an array of little-endian words
// Characters >255 have their high-byte silently ignored.
function rstr2binl(input) {
let i;
let output = [];
output[(input.length >> 2) - 1] = undefined;
for (i = 0; i < output.length; i += 1) {
output[i] = 0;
}
let length8 = input.length * 8;
for (i = 0; i < length8; i += 8) {
output[i >> 5] |= (input.charCodeAt(i / 8) & 0xff) << i % 32;
}
return output;
}
// Calculate the MD5 of a raw string
function rstrMD5(s) {
return binl2rstr(binlMD5(rstr2binl(s), s.length * 8));
}
// Calculates the HMAC-MD5 of a key and some data (raw strings)
function rstrHMACMD5(key, data) {
let i;
let bkey = rstr2binl(key);
let ipad = [];
let opad = [];
let hash;
ipad[15] = opad[15] = undefined;
if (bkey.length > 16) {
bkey = binlMD5(bkey, key.length * 8);
}
for (i = 0; i < 16; i += 1) {
ipad[i] = bkey[i] ^ 0x36363636;
opad[i] = bkey[i] ^ 0x5c5c5c5c;
}
hash = binlMD5(ipad.concat(rstr2binl(data)), 512 + data.length * 8);
return binl2rstr(binlMD5(opad.concat(hash), 512 + 128));
}
// Convert a raw string to a hex string
function rstr2hex(input) {
let hexTab = '0123456789abcdef';
let output = '';
let x;
let i;
for (i = 0; i < input.length; i += 1) {
x = input.charCodeAt(i);
output += hexTab.charAt((x >>> 4) & 0x0f) + hexTab.charAt(x & 0x0f);
}
return output;
}
// Encode a string as UTF-8
function str2rstrUTF8(input) {
return unescape(encodeURIComponent(input));
}
// Encodes input string as raw MD5 string
function rawMD5(s) {
return rstrMD5(str2rstrUTF8(s));
}
// Encodes input string as Hex encoded string
function hexMD5(s) {
return rstr2hex(rawMD5(s));
}
// Calculates the raw HMAC-MD5 for the given key and data
function rawHMACMD5(k, d) {
return rstrHMACMD5(str2rstrUTF8(k), str2rstrUTF8(d));
}
// Calculates the Hex encoded HMAC-MD5 for the given key and data
function hexHMACMD5(k, d) {
return rstr2hex(rawHMACMD5(k, d));
}
/**
* 计算MD5值
* @author https://github.com/blueimp/JavaScript-MD5
* @category crypto
* @alias yd_browser_md5
* @param {string} string 输入字符串
* @param {string} [key] HMAC key
* @param {boolean} [raw] Raw output switch
* @returns {string} 返回MD5值
*/
export default (string, key, raw) => {
if (!key) {
if (!raw) {
return hexMD5(string);
}
return rawMD5(string);
}
if (!raw) {
return hexHMACMD5(key, string);
}
return rawHMACMD5(key, string);
};