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authorMinteck <contact@minteck.org>2023-02-23 19:34:56 +0100
committerMinteck <contact@minteck.org>2023-02-23 19:34:56 +0100
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Updated 40 files, added 37 files, deleted 1103 files and renamed 3905 files (automated)
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-/**
- * Secure Hash Algorithm with 160-bit digest (SHA-1) implementation.
- *
- * @author Dave Longley
- *
- * Copyright (c) 2010-2014 Digital Bazaar, Inc.
- */
-(function() {
-/* ########## Begin module implementation ########## */
-function initModule(forge) {
-
-var sha1 = forge.sha1 = forge.sha1 || {};
-forge.md = forge.md || {};
-forge.md.algorithms = forge.md.algorithms || {};
-forge.md.sha1 = forge.md.algorithms.sha1 = sha1;
-
-/**
- * Creates a SHA-1 message digest object.
- *
- * @return a message digest object.
- */
-sha1.create = function() {
- // do initialization as necessary
- if(!_initialized) {
- _init();
- }
-
- // SHA-1 state contains five 32-bit integers
- var _state = null;
-
- // input buffer
- var _input = forge.util.createBuffer();
-
- // used for word storage
- var _w = new Array(80);
-
- // message digest object
- var md = {
- algorithm: 'sha1',
- blockLength: 64,
- digestLength: 20,
- // 56-bit length of message so far (does not including padding)
- messageLength: 0,
- // true 64-bit message length as two 32-bit ints
- messageLength64: [0, 0]
- };
-
- /**
- * Starts the digest.
- *
- * @return this digest object.
- */
- md.start = function() {
- md.messageLength = 0;
- md.messageLength64 = [0, 0];
- _input = forge.util.createBuffer();
- _state = {
- h0: 0x67452301,
- h1: 0xEFCDAB89,
- h2: 0x98BADCFE,
- h3: 0x10325476,
- h4: 0xC3D2E1F0
- };
- return md;
- };
- // start digest automatically for first time
- md.start();
-
- /**
- * Updates the digest with the given message input. The given input can
- * treated as raw input (no encoding will be applied) or an encoding of
- * 'utf8' maybe given to encode the input using UTF-8.
- *
- * @param msg the message input to update with.
- * @param encoding the encoding to use (default: 'raw', other: 'utf8').
- *
- * @return this digest object.
- */
- md.update = function(msg, encoding) {
- if(encoding === 'utf8') {
- msg = forge.util.encodeUtf8(msg);
- }
-
- // update message length
- md.messageLength += msg.length;
- md.messageLength64[0] += (msg.length / 0x100000000) >>> 0;
- md.messageLength64[1] += msg.length >>> 0;
-
- // add bytes to input buffer
- _input.putBytes(msg);
-
- // process bytes
- _update(_state, _w, _input);
-
- // compact input buffer every 2K or if empty
- if(_input.read > 2048 || _input.length() === 0) {
- _input.compact();
- }
-
- return md;
- };
-
- /**
- * Produces the digest.
- *
- * @return a byte buffer containing the digest value.
- */
- md.digest = function() {
- /* Note: Here we copy the remaining bytes in the input buffer and
- add the appropriate SHA-1 padding. Then we do the final update
- on a copy of the state so that if the user wants to get
- intermediate digests they can do so. */
-
- /* Determine the number of bytes that must be added to the message
- to ensure its length is congruent to 448 mod 512. In other words,
- the data to be digested must be a multiple of 512 bits (or 128 bytes).
- This data includes the message, some padding, and the length of the
- message. Since the length of the message will be encoded as 8 bytes (64
- bits), that means that the last segment of the data must have 56 bytes
- (448 bits) of message and padding. Therefore, the length of the message
- plus the padding must be congruent to 448 mod 512 because
- 512 - 128 = 448.
-
- In order to fill up the message length it must be filled with
- padding that begins with 1 bit followed by all 0 bits. Padding
- must *always* be present, so if the message length is already
- congruent to 448 mod 512, then 512 padding bits must be added. */
-
- // 512 bits == 64 bytes, 448 bits == 56 bytes, 64 bits = 8 bytes
- // _padding starts with 1 byte with first bit is set in it which
- // is byte value 128, then there may be up to 63 other pad bytes
- var padBytes = forge.util.createBuffer();
- padBytes.putBytes(_input.bytes());
- // 64 - (remaining msg + 8 bytes msg length) mod 64
- padBytes.putBytes(
- _padding.substr(0, 64 - ((md.messageLength64[1] + 8) & 0x3F)));
-
- /* Now append length of the message. The length is appended in bits
- as a 64-bit number in big-endian order. Since we store the length in
- bytes, we must multiply the 64-bit length by 8 (or left shift by 3). */
- padBytes.putInt32(
- (md.messageLength64[0] << 3) | (md.messageLength64[0] >>> 28));
- padBytes.putInt32(md.messageLength64[1] << 3);
- var s2 = {
- h0: _state.h0,
- h1: _state.h1,
- h2: _state.h2,
- h3: _state.h3,
- h4: _state.h4
- };
- _update(s2, _w, padBytes);
- var rval = forge.util.createBuffer();
- rval.putInt32(s2.h0);
- rval.putInt32(s2.h1);
- rval.putInt32(s2.h2);
- rval.putInt32(s2.h3);
- rval.putInt32(s2.h4);
- return rval;
- };
-
- return md;
-};
-
-// sha-1 padding bytes not initialized yet
-var _padding = null;
-var _initialized = false;
-
-/**
- * Initializes the constant tables.
- */
-function _init() {
- // create padding
- _padding = String.fromCharCode(128);
- _padding += forge.util.fillString(String.fromCharCode(0x00), 64);
-
- // now initialized
- _initialized = true;
-}
-
-/**
- * Updates a SHA-1 state with the given byte buffer.
- *
- * @param s the SHA-1 state to update.
- * @param w the array to use to store words.
- * @param bytes the byte buffer to update with.
- */
-function _update(s, w, bytes) {
- // consume 512 bit (64 byte) chunks
- var t, a, b, c, d, e, f, i;
- var len = bytes.length();
- while(len >= 64) {
- // the w array will be populated with sixteen 32-bit big-endian words
- // and then extended into 80 32-bit words according to SHA-1 algorithm
- // and for 32-79 using Max Locktyukhin's optimization
-
- // initialize hash value for this chunk
- a = s.h0;
- b = s.h1;
- c = s.h2;
- d = s.h3;
- e = s.h4;
-
- // round 1
- for(i = 0; i < 16; ++i) {
- t = bytes.getInt32();
- w[i] = t;
- f = d ^ (b & (c ^ d));
- t = ((a << 5) | (a >>> 27)) + f + e + 0x5A827999 + t;
- e = d;
- d = c;
- c = (b << 30) | (b >>> 2);
- b = a;
- a = t;
- }
- for(; i < 20; ++i) {
- t = (w[i - 3] ^ w[i - 8] ^ w[i - 14] ^ w[i - 16]);
- t = (t << 1) | (t >>> 31);
- w[i] = t;
- f = d ^ (b & (c ^ d));
- t = ((a << 5) | (a >>> 27)) + f + e + 0x5A827999 + t;
- e = d;
- d = c;
- c = (b << 30) | (b >>> 2);
- b = a;
- a = t;
- }
- // round 2
- for(; i < 32; ++i) {
- t = (w[i - 3] ^ w[i - 8] ^ w[i - 14] ^ w[i - 16]);
- t = (t << 1) | (t >>> 31);
- w[i] = t;
- f = b ^ c ^ d;
- t = ((a << 5) | (a >>> 27)) + f + e + 0x6ED9EBA1 + t;
- e = d;
- d = c;
- c = (b << 30) | (b >>> 2);
- b = a;
- a = t;
- }
- for(; i < 40; ++i) {
- t = (w[i - 6] ^ w[i - 16] ^ w[i - 28] ^ w[i - 32]);
- t = (t << 2) | (t >>> 30);
- w[i] = t;
- f = b ^ c ^ d;
- t = ((a << 5) | (a >>> 27)) + f + e + 0x6ED9EBA1 + t;
- e = d;
- d = c;
- c = (b << 30) | (b >>> 2);
- b = a;
- a = t;
- }
- // round 3
- for(; i < 60; ++i) {
- t = (w[i - 6] ^ w[i - 16] ^ w[i - 28] ^ w[i - 32]);
- t = (t << 2) | (t >>> 30);
- w[i] = t;
- f = (b & c) | (d & (b ^ c));
- t = ((a << 5) | (a >>> 27)) + f + e + 0x8F1BBCDC + t;
- e = d;
- d = c;
- c = (b << 30) | (b >>> 2);
- b = a;
- a = t;
- }
- // round 4
- for(; i < 80; ++i) {
- t = (w[i - 6] ^ w[i - 16] ^ w[i - 28] ^ w[i - 32]);
- t = (t << 2) | (t >>> 30);
- w[i] = t;
- f = b ^ c ^ d;
- t = ((a << 5) | (a >>> 27)) + f + e + 0xCA62C1D6 + t;
- e = d;
- d = c;
- c = (b << 30) | (b >>> 2);
- b = a;
- a = t;
- }
-
- // update hash state
- s.h0 = (s.h0 + a) | 0;
- s.h1 = (s.h1 + b) | 0;
- s.h2 = (s.h2 + c) | 0;
- s.h3 = (s.h3 + d) | 0;
- s.h4 = (s.h4 + e) | 0;
-
- len -= 64;
- }
-}
-
-} // end module implementation
-
-/* ########## Begin module wrapper ########## */
-var name = 'sha1';
-if(typeof define !== 'function') {
- // NodeJS -> AMD
- if(typeof module === 'object' && module.exports) {
- var nodeJS = true;
- define = function(ids, factory) {
- factory(require, module);
- };
- } else {
- // <script>
- if(typeof forge === 'undefined') {
- forge = {};
- }
- return initModule(forge);
- }
-}
-// AMD
-var deps;
-var defineFunc = function(require, module) {
- module.exports = function(forge) {
- var mods = deps.map(function(dep) {
- return require(dep);
- }).concat(initModule);
- // handle circular dependencies
- forge = forge || {};
- forge.defined = forge.defined || {};
- if(forge.defined[name]) {
- return forge[name];
- }
- forge.defined[name] = true;
- for(var i = 0; i < mods.length; ++i) {
- mods[i](forge);
- }
- return forge[name];
- };
-};
-var tmpDefine = define;
-define = function(ids, factory) {
- deps = (typeof ids === 'string') ? factory.slice(2) : ids.slice(2);
- if(nodeJS) {
- delete define;
- return tmpDefine.apply(null, Array.prototype.slice.call(arguments, 0));
- }
- define = tmpDefine;
- return define.apply(null, Array.prototype.slice.call(arguments, 0));
-};
-define(['require', 'module', './util'], function() {
- defineFunc.apply(null, Array.prototype.slice.call(arguments, 0));
-});
-})();