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/* eslint-disable no-use-before-define */
const crypto =
(typeof globalThis != 'undefined' ? globalThis : void 0)?.crypto ||
(typeof global != 'undefined' ? global : void 0)?.crypto ||
(typeof window != 'undefined' ? window : void 0)?.crypto ||
(typeof self != 'undefined' ? self : void 0)?.crypto ||
(typeof frames != 'undefined' ? frames : void 0)?.[0]?.crypto;
let randomWordArray;
if (crypto) {
randomWordArray = (nBytes) => {
const words = [];
for (let i = 0, rcache; i < nBytes; i += 4) {
words.push(crypto.getRandomValues(new Uint32Array(1))[0]);
}
return new WordArray(words, nBytes);
}
} else {
// Because there is no global crypto property in this context, cryptographically unsafe Math.random() is used.
randomWordArray = (nBytes) => {
const words = [];
const r = (m_w) => {
let _m_w = m_w;
let _m_z = 0x3ade68b1;
const mask = 0xffffffff;
return () => {
_m_z = (0x9069 * (_m_z & 0xFFFF) + (_m_z >> 0x10)) & mask;
_m_w = (0x4650 * (_m_w & 0xFFFF) + (_m_w >> 0x10)) & mask;
let result = ((_m_z << 0x10) + _m_w) & mask;
result /= 0x100000000;
result += 0.5;
return result * (Math.random() > 0.5 ? 1 : -1);
};
};
for (let i = 0, rcache; i < nBytes; i += 4) {
const _r = r((rcache || Math.random()) * 0x100000000);
rcache = _r() * 0x3ade67b7;
words.push((_r() * 0x100000000) | 0);
}
return new WordArray(words, nBytes);
}
}
/**
* Base class for inheritance.
*/
export class Base {
/**
* Extends this object and runs the init method.
* Arguments to create() will be passed to init().
*
* @return {Object} The new object.
*
* @static
*
* @example
*
* var instance = MyType.create();
*/
static create(...args) {
return new this(...args);
}
/**
* Copies properties into this object.
*
* @param {Object} properties The properties to mix in.
*
* @example
*
* MyType.mixIn({
* field: 'value'
* });
*/
mixIn(properties) {
return Object.assign(this, properties);
}
/**
* Creates a copy of this object.
*
* @return {Object} The clone.
*
* @example
*
* var clone = instance.clone();
*/
clone() {
const clone = new this.constructor();
Object.assign(clone, this);
return clone;
}
}
/**
* An array of 32-bit words.
*
* @property {Array} words The array of 32-bit words.
* @property {number} sigBytes The number of significant bytes in this word array.
*/
export class WordArray extends Base {
/**
* Initializes a newly created word array.
*
* @param {Array} words (Optional) An array of 32-bit words.
* @param {number} sigBytes (Optional) The number of significant bytes in the words.
*
* @example
*
* var wordArray = CryptoJS.lib.WordArray.create();
* var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607]);
* var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607], 6);
*/
constructor(words = [], sigBytes = words.length * 4) {
super();
let typedArray = words;
// Convert buffers to uint8
if (typedArray instanceof ArrayBuffer) {
typedArray = new Uint8Array(typedArray);
}
// Convert other array views to uint8
if (
typedArray instanceof Int8Array
|| typedArray instanceof Uint8ClampedArray
|| typedArray instanceof Int16Array
|| typedArray instanceof Uint16Array
|| typedArray instanceof Int32Array
|| typedArray instanceof Uint32Array
|| typedArray instanceof Float32Array
|| typedArray instanceof Float64Array
) {
typedArray = new Uint8Array(typedArray.buffer, typedArray.byteOffset, typedArray.byteLength);
}
// Handle Uint8Array
if (typedArray instanceof Uint8Array) {
// Shortcut
const typedArrayByteLength = typedArray.byteLength;
// Extract bytes
const _words = [];
for (let i = 0; i < typedArrayByteLength; i += 1) {
_words[i >>> 2] |= typedArray[i] << (24 - (i % 4) * 8);
}
// Initialize this word array
this.words = _words;
this.sigBytes = typedArrayByteLength;
} else {
// Else call normal init
this.words = words;
this.sigBytes = sigBytes;
}
}
/**
* Creates a word array filled with random bytes.
*
* @param {number} nBytes The number of random bytes to generate.
*
* @return {WordArray} The random word array.
*
* @static
*
* @example
*
* var wordArray = CryptoJS.lib.WordArray.random(16);
*/
static random = randomWordArray;
/**
* Converts this word array to a string.
*
* @param {Encoder} encoder (Optional) The encoding strategy to use. Default: CryptoJS.enc.Hex
*
* @return {string} The stringified word array.
*
* @example
*
* var string = wordArray + '';
* var string = wordArray.toString();
* var string = wordArray.toString(CryptoJS.enc.Utf8);
*/
toString(encoder = Hex) {
return encoder.stringify(this);
}
/**
* Concatenates a word array to this word array.
*
* @param {WordArray} wordArray The word array to append.
*
* @return {WordArray} This word array.
*
* @example
*
* wordArray1.concat(wordArray2);
*/
concat(wordArray) {
// Shortcuts
const thisWords = this.words;
const thatWords = wordArray.words;
const thisSigBytes = this.sigBytes;
const thatSigBytes = wordArray.sigBytes;
// Clamp excess bits
this.clamp();
// Concat
if (thisSigBytes % 4) {
// Copy one byte at a time
for (let i = 0; i < thatSigBytes; i += 1) {
const thatByte = (thatWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
thisWords[(thisSigBytes + i) >>> 2] |= thatByte << (24 - ((thisSigBytes + i) % 4) * 8);
}
} else {
// Copy one word at a time
for (let i = 0; i < thatSigBytes; i += 4) {
thisWords[(thisSigBytes + i) >>> 2] = thatWords[i >>> 2];
}
}
this.sigBytes += thatSigBytes;
// Chainable
return this;
}
/**
* Removes insignificant bits.
*
* @example
*
* wordArray.clamp();
*/
clamp() {
// Shortcuts
const { words, sigBytes } = this;
// Clamp
words[sigBytes >>> 2] &= 0xffffffff << (32 - (sigBytes % 4) * 8);
words.length = Math.ceil(sigBytes / 4);
}
/**
* Creates a copy of this word array.
*
* @return {WordArray} The clone.
*
* @example
*
* var clone = wordArray.clone();
*/
clone() {
const clone = super.clone.call(this);
clone.words = this.words.slice(0);
return clone;
}
}
/**
* Hex encoding strategy.
*/
export const Hex = {
/**
* Converts a word array to a hex string.
*
* @param {WordArray} wordArray The word array.
*
* @return {string} The hex string.
*
* @static
*
* @example
*
* var hexString = CryptoJS.enc.Hex.stringify(wordArray);
*/
stringify(wordArray) {
// Shortcuts
const { words, sigBytes } = wordArray;
// Convert
const hexChars = [];
for (let i = 0; i < sigBytes; i += 1) {
const bite = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
hexChars.push((bite >>> 4).toString(16));
hexChars.push((bite & 0x0f).toString(16));
}
return hexChars.join('');
},
/**
* Converts a hex string to a word array.
*
* @param {string} hexStr The hex string.
*
* @return {WordArray} The word array.
*
* @static
*
* @example
*
* var wordArray = CryptoJS.enc.Hex.parse(hexString);
*/
parse(hexStr) {
// Shortcut
const hexStrLength = hexStr.length;
// Convert
const words = [];
for (let i = 0; i < hexStrLength; i += 2) {
words[i >>> 3] |= parseInt(hexStr.substr(i, 2), 16) << (24 - (i % 8) * 4);
}
return new WordArray(words, hexStrLength / 2);
},
};
/**
* Latin1 encoding strategy.
*/
export const Latin1 = {
/**
* Converts a word array to a Latin1 string.
*
* @param {WordArray} wordArray The word array.
*
* @return {string} The Latin1 string.
*
* @static
*
* @example
*
* var latin1String = CryptoJS.enc.Latin1.stringify(wordArray);
*/
stringify(wordArray) {
// Shortcuts
const { words, sigBytes } = wordArray;
// Convert
const latin1Chars = [];
for (let i = 0; i < sigBytes; i += 1) {
const bite = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
latin1Chars.push(String.fromCharCode(bite));
}
return latin1Chars.join('');
},
/**
* Converts a Latin1 string to a word array.
*
* @param {string} latin1Str The Latin1 string.
*
* @return {WordArray} The word array.
*
* @static
*
* @example
*
* var wordArray = CryptoJS.enc.Latin1.parse(latin1String);
*/
parse(latin1Str) {
// Shortcut
const latin1StrLength = latin1Str.length;
// Convert
const words = [];
for (let i = 0; i < latin1StrLength; i += 1) {
words[i >>> 2] |= (latin1Str.charCodeAt(i) & 0xff) << (24 - (i % 4) * 8);
}
return new WordArray(words, latin1StrLength);
},
};
/**
* UTF-8 encoding strategy.
*/
export const Utf8 = {
/**
* Converts a word array to a UTF-8 string.
*
* @param {WordArray} wordArray The word array.
*
* @return {string} The UTF-8 string.
*
* @static
*
* @example
*
* var utf8String = CryptoJS.enc.Utf8.stringify(wordArray);
*/
stringify(wordArray) {
try {
return decodeURIComponent(escape(Latin1.stringify(wordArray)));
} catch (e) {
throw new Error('Malformed UTF-8 data');
}
},
/**
* Converts a UTF-8 string to a word array.
*
* @param {string} utf8Str The UTF-8 string.
*
* @return {WordArray} The word array.
*
* @static
*
* @example
*
* var wordArray = CryptoJS.enc.Utf8.parse(utf8String);
*/
parse(utf8Str) {
return Latin1.parse(unescape(encodeURIComponent(utf8Str)));
},
};
/**
* Abstract buffered block algorithm template.
*
* The property blockSize must be implemented in a concrete subtype.
*
* @property {number} _minBufferSize
*
* The number of blocks that should be kept unprocessed in the buffer. Default: 0
*/
export class BufferedBlockAlgorithm extends Base {
constructor() {
super();
this._minBufferSize = 0;
}
/**
* Resets this block algorithm's data buffer to its initial state.
*
* @example
*
* bufferedBlockAlgorithm.reset();
*/
reset() {
// Initial values
this._data = new WordArray();
this._nDataBytes = 0;
}
/**
* Adds new data to this block algorithm's buffer.
*
* @param {WordArray|string} data
*
* The data to append. Strings are converted to a WordArray using UTF-8.
*
* @example
*
* bufferedBlockAlgorithm._append('data');
* bufferedBlockAlgorithm._append(wordArray);
*/
_append(data) {
let m_data = data;
// Convert string to WordArray, else assume WordArray already
if (typeof m_data === 'string') {
m_data = Utf8.parse(m_data);
}
// Append
this._data.concat(m_data);
this._nDataBytes += m_data.sigBytes;
}
/**
* Processes available data blocks.
*
* This method invokes _doProcessBlock(offset), which must be implemented by a concrete subtype.
*
* @param {boolean} doFlush Whether all blocks and partial blocks should be processed.
*
* @return {WordArray} The processed data.
*
* @example
*
* var processedData = bufferedBlockAlgorithm._process();
* var processedData = bufferedBlockAlgorithm._process(!!'flush');
*/
_process(doFlush) {
let processedWords;
// Shortcuts
const { _data: data, blockSize } = this;
const dataWords = data.words;
const dataSigBytes = data.sigBytes;
const blockSizeBytes = blockSize * 4;
// Count blocks ready
let nBlocksReady = dataSigBytes / blockSizeBytes;
if (doFlush) {
// Round up to include partial blocks
nBlocksReady = Math.ceil(nBlocksReady);
} else {
// Round down to include only full blocks,
// less the number of blocks that must remain in the buffer
nBlocksReady = Math.max((nBlocksReady | 0) - this._minBufferSize, 0);
}
// Count words ready
const nWordsReady = nBlocksReady * blockSize;
// Count bytes ready
const nBytesReady = Math.min(nWordsReady * 4, dataSigBytes);
// Process blocks
if (nWordsReady) {
for (let offset = 0; offset < nWordsReady; offset += blockSize) {
// Perform concrete-algorithm logic
this._doProcessBlock(dataWords, offset);
}
// Remove processed words
processedWords = dataWords.splice(0, nWordsReady);
data.sigBytes -= nBytesReady;
}
// Return processed words
return new WordArray(processedWords, nBytesReady);
}
/**
* Creates a copy of this object.
*
* @return {Object} The clone.
*
* @example
*
* var clone = bufferedBlockAlgorithm.clone();
*/
clone() {
const clone = super.clone.call(this);
clone._data = this._data.clone();
return clone;
}
}
/**
* Abstract hasher template.
*
* @property {number} blockSize
*
* The number of 32-bit words this hasher operates on. Default: 16 (512 bits)
*/
export class Hasher extends BufferedBlockAlgorithm {
constructor(cfg) {
super();
this.blockSize = 512 / 32;
/**
* Configuration options.
*/
this.cfg = Object.assign(new Base(), cfg);
// Set initial values
this.reset();
}
/**
* Creates a shortcut function to a hasher's object interface.
*
* @param {Hasher} SubHasher The hasher to create a helper for.
*
* @return {Function} The shortcut function.
*
* @static
*
* @example
*
* var SHA256 = CryptoJS.lib.Hasher._createHelper(CryptoJS.algo.SHA256);
*/
static _createHelper(SubHasher) {
return (message, cfg) => new SubHasher(cfg).finalize(message);
}
/**
* Creates a shortcut function to the HMAC's object interface.
*
* @param {Hasher} SubHasher The hasher to use in this HMAC helper.
*
* @return {Function} The shortcut function.
*
* @static
*
* @example
*
* var HmacSHA256 = CryptoJS.lib.Hasher._createHmacHelper(CryptoJS.algo.SHA256);
*/
static _createHmacHelper(SubHasher) {
return (message, key) => new HMAC(SubHasher, key).finalize(message);
}
/**
* Resets this hasher to its initial state.
*
* @example
*
* hasher.reset();
*/
reset() {
// Reset data buffer
super.reset.call(this);
// Perform concrete-hasher logic
this._doReset();
}
/**
* Updates this hasher with a message.
*
* @param {WordArray|string} messageUpdate The message to append.
*
* @return {Hasher} This hasher.
*
* @example
*
* hasher.update('message');
* hasher.update(wordArray);
*/
update(messageUpdate) {
// Append
this._append(messageUpdate);
// Update the hash
this._process();
// Chainable
return this;
}
/**
* Finalizes the hash computation.
* Note that the finalize operation is effectively a destructive, read-once operation.
*
* @param {WordArray|string} messageUpdate (Optional) A final message update.
*
* @return {WordArray} The hash.
*
* @example
*
* var hash = hasher.finalize();
* var hash = hasher.finalize('message');
* var hash = hasher.finalize(wordArray);
*/
finalize(messageUpdate) {
// Final message update
if (messageUpdate) {
this._append(messageUpdate);
}
// Perform concrete-hasher logic
const hash = this._doFinalize();
return hash;
}
}
/**
* HMAC algorithm.
*/
export class HMAC extends Base {
/**
* Initializes a newly created HMAC.
*
* @param {Hasher} SubHasher The hash algorithm to use.
* @param {WordArray|string} key The secret key.
*
* @example
*
* var hmacHasher = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256, key);
*/
constructor(SubHasher, key) {
super();
const hasher = new SubHasher();
this._hasher = hasher;
// Convert string to WordArray, else assume WordArray already
let _key = key;
if (typeof _key === 'string') {
_key = Utf8.parse(_key);
}
// Shortcuts
const hasherBlockSize = hasher.blockSize;
const hasherBlockSizeBytes = hasherBlockSize * 4;
// Allow arbitrary length keys
if (_key.sigBytes > hasherBlockSizeBytes) {
_key = hasher.finalize(key);
}
// Clamp excess bits
_key.clamp();
// Clone key for inner and outer pads
const oKey = _key.clone();
this._oKey = oKey;
const iKey = _key.clone();
this._iKey = iKey;
// Shortcuts
const oKeyWords = oKey.words;
const iKeyWords = iKey.words;
// XOR keys with pad constants
for (let i = 0; i < hasherBlockSize; i += 1) {
oKeyWords[i] ^= 0x5c5c5c5c;
iKeyWords[i] ^= 0x36363636;
}
oKey.sigBytes = hasherBlockSizeBytes;
iKey.sigBytes = hasherBlockSizeBytes;
// Set initial values
this.reset();
}
/**
* Resets this HMAC to its initial state.
*
* @example
*
* hmacHasher.reset();
*/
reset() {
// Shortcut
const hasher = this._hasher;
// Reset
hasher.reset();
hasher.update(this._iKey);
}
/**
* Updates this HMAC with a message.
*
* @param {WordArray|string} messageUpdate The message to append.
*
* @return {HMAC} This HMAC instance.
*
* @example
*
* hmacHasher.update('message');
* hmacHasher.update(wordArray);
*/
update(messageUpdate) {
this._hasher.update(messageUpdate);
// Chainable
return this;
}
/**
* Finalizes the HMAC computation.
* Note that the finalize operation is effectively a destructive, read-once operation.
*
* @param {WordArray|string} messageUpdate (Optional) A final message update.
*
* @return {WordArray} The HMAC.
*
* @example
*
* var hmac = hmacHasher.finalize();
* var hmac = hmacHasher.finalize('message');
* var hmac = hmacHasher.finalize(wordArray);
*/
finalize(messageUpdate) {
// Shortcut
const hasher = this._hasher;
// Compute HMAC
const innerHash = hasher.finalize(messageUpdate);
hasher.reset();
const hmac = hasher.finalize(this._oKey.clone().concat(innerHash));
return hmac;
}
}