hash-maker
Version:
A collection of hash and number generators for Node or Browser
186 lines • 7.53 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.MD5 = void 0;
function isBuffer(obj) {
return (typeof Buffer !== 'undefined' && obj instanceof Buffer);
}
function arraybuffcheck(obj) {
return obj instanceof Uint8Array || isBuffer(obj);
}
function stringToBytes(str) {
for (var bytes = [], i = 0; i < str.length; i++) {
bytes.push(str.charCodeAt(i) & 0xFF);
}
return bytes;
}
function bytesToString(bytes) {
for (var str = [], i = 0; i < bytes.length; i++) {
str.push(String.fromCharCode(bytes[i]));
}
return str.join('');
}
function wordsToBytes(words) {
for (var bytes = [], b = 0; b < words.length * 32; b += 8) {
bytes.push((words[b >>> 5] >>> (24 - b % 32)) & 0xFF);
}
return bytes;
}
function bytesToWords(bytes) {
for (var words = [], i = 0, b = 0; i < bytes.length; i++, b += 8) {
words[b >>> 5] |= (bytes[i] & 0xFF) << (24 - b % 32);
}
return words;
}
function bytesToHex(bytes) {
for (var hex = [], i = 0; i < bytes.length; i++) {
hex.push((bytes[i] >>> 4).toString(16));
hex.push((bytes[i] & 0xF).toString(16));
}
return hex.join("");
}
function rotl(n, b) {
return (n << b) | (n >>> (32 - b));
}
function endian(n) {
// If number given, swap endian
if (n.constructor == Number) {
return rotl(n, 8) & 0x00FF00FF |
rotl(n, 24) & 0xFF00FF00;
}
else if (typeof n == "object") {
// Else, assume array and swap all items
for (var i = 0; i < n.length; i++) {
n[i] = endian(n[i]);
}
}
return n;
}
function md5(message) {
var message2 = [];
if (message.constructor == String) {
message2 = stringToBytes(message);
}
else if (arraybuffcheck(message)) {
message2 = Array.prototype.slice.call(message, 0);
}
else {
throw new Error("Message must be either String, Buffer or Uint8Array");
}
var m = bytesToWords(message2), l = message2.length * 8, a = 1732584193, b = -271733879, c = -1732584194, d = 271733878;
for (var i = 0; i < m.length; i++) {
m[i] = ((m[i] << 8) | (m[i] >>> 24)) & 0x00FF00FF |
((m[i] << 24) | (m[i] >>> 8)) & 0xFF00FF00;
}
m[l >>> 5] |= 0x80 << (l % 32);
m[(((l + 64) >>> 9) << 4) + 14] = l;
var FF = function (a, b, c, d, x, s, t) {
var n = a + (b & c | ~b & d) + (x >>> 0) + t;
return ((n << s) | (n >>> (32 - s))) + b;
};
var GG = function (a, b, c, d, x, s, t) {
var n = a + (b & d | c & ~d) + (x >>> 0) + t;
return ((n << s) | (n >>> (32 - s))) + b;
};
var HH = function (a, b, c, d, x, s, t) {
var n = a + (b ^ c ^ d) + (x >>> 0) + t;
return ((n << s) | (n >>> (32 - s))) + b;
};
var II = function (a, b, c, d, x, s, t) {
var n = a + (c ^ (b | ~d)) + (x >>> 0) + t;
return ((n << s) | (n >>> (32 - s))) + b;
};
;
for (var i = 0; i < m.length; i += 16) {
var aa = a, bb = b, cc = c, dd = d;
a = FF(a, b, c, d, m[i + 0], 7, -680876936);
d = FF(d, a, b, c, m[i + 1], 12, -389564586);
c = FF(c, d, a, b, m[i + 2], 17, 606105819);
b = FF(b, c, d, a, m[i + 3], 22, -1044525330);
a = FF(a, b, c, d, m[i + 4], 7, -176418897);
d = FF(d, a, b, c, m[i + 5], 12, 1200080426);
c = FF(c, d, a, b, m[i + 6], 17, -1473231341);
b = FF(b, c, d, a, m[i + 7], 22, -45705983);
a = FF(a, b, c, d, m[i + 8], 7, 1770035416);
d = FF(d, a, b, c, m[i + 9], 12, -1958414417);
c = FF(c, d, a, b, m[i + 10], 17, -42063);
b = FF(b, c, d, a, m[i + 11], 22, -1990404162);
a = FF(a, b, c, d, m[i + 12], 7, 1804603682);
d = FF(d, a, b, c, m[i + 13], 12, -40341101);
c = FF(c, d, a, b, m[i + 14], 17, -1502002290);
b = FF(b, c, d, a, m[i + 15], 22, 1236535329);
a = GG(a, b, c, d, m[i + 1], 5, -165796510);
d = GG(d, a, b, c, m[i + 6], 9, -1069501632);
c = GG(c, d, a, b, m[i + 11], 14, 643717713);
b = GG(b, c, d, a, m[i + 0], 20, -373897302);
a = GG(a, b, c, d, m[i + 5], 5, -701558691);
d = GG(d, a, b, c, m[i + 10], 9, 38016083);
c = GG(c, d, a, b, m[i + 15], 14, -660478335);
b = GG(b, c, d, a, m[i + 4], 20, -405537848);
a = GG(a, b, c, d, m[i + 9], 5, 568446438);
d = GG(d, a, b, c, m[i + 14], 9, -1019803690);
c = GG(c, d, a, b, m[i + 3], 14, -187363961);
b = GG(b, c, d, a, m[i + 8], 20, 1163531501);
a = GG(a, b, c, d, m[i + 13], 5, -1444681467);
d = GG(d, a, b, c, m[i + 2], 9, -51403784);
c = GG(c, d, a, b, m[i + 7], 14, 1735328473);
b = GG(b, c, d, a, m[i + 12], 20, -1926607734);
a = HH(a, b, c, d, m[i + 5], 4, -378558);
d = HH(d, a, b, c, m[i + 8], 11, -2022574463);
c = HH(c, d, a, b, m[i + 11], 16, 1839030562);
b = HH(b, c, d, a, m[i + 14], 23, -35309556);
a = HH(a, b, c, d, m[i + 1], 4, -1530992060);
d = HH(d, a, b, c, m[i + 4], 11, 1272893353);
c = HH(c, d, a, b, m[i + 7], 16, -155497632);
b = HH(b, c, d, a, m[i + 10], 23, -1094730640);
a = HH(a, b, c, d, m[i + 13], 4, 681279174);
d = HH(d, a, b, c, m[i + 0], 11, -358537222);
c = HH(c, d, a, b, m[i + 3], 16, -722521979);
b = HH(b, c, d, a, m[i + 6], 23, 76029189);
a = HH(a, b, c, d, m[i + 9], 4, -640364487);
d = HH(d, a, b, c, m[i + 12], 11, -421815835);
c = HH(c, d, a, b, m[i + 15], 16, 530742520);
b = HH(b, c, d, a, m[i + 2], 23, -995338651);
a = II(a, b, c, d, m[i + 0], 6, -198630844);
d = II(d, a, b, c, m[i + 7], 10, 1126891415);
c = II(c, d, a, b, m[i + 14], 15, -1416354905);
b = II(b, c, d, a, m[i + 5], 21, -57434055);
a = II(a, b, c, d, m[i + 12], 6, 1700485571);
d = II(d, a, b, c, m[i + 3], 10, -1894986606);
c = II(c, d, a, b, m[i + 10], 15, -1051523);
b = II(b, c, d, a, m[i + 1], 21, -2054922799);
a = II(a, b, c, d, m[i + 8], 6, 1873313359);
d = II(d, a, b, c, m[i + 15], 10, -30611744);
c = II(c, d, a, b, m[i + 6], 15, -1560198380);
b = II(b, c, d, a, m[i + 13], 21, 1309151649);
a = II(a, b, c, d, m[i + 4], 6, -145523070);
d = II(d, a, b, c, m[i + 11], 10, -1120210379);
c = II(c, d, a, b, m[i + 2], 15, 718787259);
b = II(b, c, d, a, m[i + 9], 21, -343485551);
a = (a + aa) >>> 0;
b = (b + bb) >>> 0;
c = (c + cc) >>> 0;
d = (d + dd) >>> 0;
}
return endian([a, b, c, d]);
}
;
/**
* Creates a 16 byte MD5 hash of the message as either a string, hex, Uint8Array or Buffer. Accepts strings, Uint8Array or Buffer.
*
* @param {string|Uint8Array|Buffer} message - Message to hash
* @param {Options} options - Object with asString, asBuffer, asArray or asHex as true (default as hex string)
* @returns ```string|Uint8Array|Buffer```
*/
function MD5(message, options) {
if (message === undefined || message === null) {
throw new Error('Illegal MD5 message data ' + message);
}
var digestbytes = wordsToBytes(md5(message));
return options && options.asArray ? new Uint8Array(digestbytes) :
options && options.asString ? bytesToString(digestbytes) :
options && options.asBuffer ? Buffer.from(digestbytes) :
bytesToHex(digestbytes);
}
exports.MD5 = MD5;
;
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