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Diffstat (limited to 'library/cryptojs/components/cipher-core.js')
| -rw-r--r-- | library/cryptojs/components/cipher-core.js | 863 |
1 files changed, 0 insertions, 863 deletions
diff --git a/library/cryptojs/components/cipher-core.js b/library/cryptojs/components/cipher-core.js deleted file mode 100644 index 09862098f..000000000 --- a/library/cryptojs/components/cipher-core.js +++ /dev/null @@ -1,863 +0,0 @@ -/* -CryptoJS v3.1.2 -code.google.com/p/crypto-js -(c) 2009-2013 by Jeff Mott. All rights reserved. -code.google.com/p/crypto-js/wiki/License -*/ -/**
- * Cipher core components.
- */
-CryptoJS.lib.Cipher || (function (undefined) {
- // Shortcuts
- var C = CryptoJS;
- var C_lib = C.lib;
- var Base = C_lib.Base;
- var WordArray = C_lib.WordArray;
- var BufferedBlockAlgorithm = C_lib.BufferedBlockAlgorithm;
- var C_enc = C.enc;
- var Utf8 = C_enc.Utf8;
- var Base64 = C_enc.Base64;
- var C_algo = C.algo;
- var EvpKDF = C_algo.EvpKDF;
-
- /**
- * Abstract base cipher template.
- *
- * @property {number} keySize This cipher's key size. Default: 4 (128 bits)
- * @property {number} ivSize This cipher's IV size. Default: 4 (128 bits)
- * @property {number} _ENC_XFORM_MODE A constant representing encryption mode.
- * @property {number} _DEC_XFORM_MODE A constant representing decryption mode.
- */
- var Cipher = C_lib.Cipher = BufferedBlockAlgorithm.extend({
- /**
- * Configuration options.
- *
- * @property {WordArray} iv The IV to use for this operation.
- */
- cfg: Base.extend(),
-
- /**
- * Creates this cipher in encryption mode.
- *
- * @param {WordArray} key The key.
- * @param {Object} cfg (Optional) The configuration options to use for this operation.
- *
- * @return {Cipher} A cipher instance.
- *
- * @static
- *
- * @example
- *
- * var cipher = CryptoJS.algo.AES.createEncryptor(keyWordArray, { iv: ivWordArray });
- */
- createEncryptor: function (key, cfg) {
- return this.create(this._ENC_XFORM_MODE, key, cfg);
- },
-
- /**
- * Creates this cipher in decryption mode.
- *
- * @param {WordArray} key The key.
- * @param {Object} cfg (Optional) The configuration options to use for this operation.
- *
- * @return {Cipher} A cipher instance.
- *
- * @static
- *
- * @example
- *
- * var cipher = CryptoJS.algo.AES.createDecryptor(keyWordArray, { iv: ivWordArray });
- */
- createDecryptor: function (key, cfg) {
- return this.create(this._DEC_XFORM_MODE, key, cfg);
- },
-
- /**
- * Initializes a newly created cipher.
- *
- * @param {number} xformMode Either the encryption or decryption transormation mode constant.
- * @param {WordArray} key The key.
- * @param {Object} cfg (Optional) The configuration options to use for this operation.
- *
- * @example
- *
- * var cipher = CryptoJS.algo.AES.create(CryptoJS.algo.AES._ENC_XFORM_MODE, keyWordArray, { iv: ivWordArray });
- */
- init: function (xformMode, key, cfg) {
- // Apply config defaults
- this.cfg = this.cfg.extend(cfg);
-
- // Store transform mode and key
- this._xformMode = xformMode;
- this._key = key;
-
- // Set initial values
- this.reset();
- },
-
- /**
- * Resets this cipher to its initial state.
- *
- * @example
- *
- * cipher.reset();
- */
- reset: function () {
- // Reset data buffer
- BufferedBlockAlgorithm.reset.call(this);
-
- // Perform concrete-cipher logic
- this._doReset();
- },
-
- /**
- * Adds data to be encrypted or decrypted.
- *
- * @param {WordArray|string} dataUpdate The data to encrypt or decrypt.
- *
- * @return {WordArray} The data after processing.
- *
- * @example
- *
- * var encrypted = cipher.process('data');
- * var encrypted = cipher.process(wordArray);
- */
- process: function (dataUpdate) {
- // Append
- this._append(dataUpdate);
-
- // Process available blocks
- return this._process();
- },
-
- /**
- * Finalizes the encryption or decryption process.
- * Note that the finalize operation is effectively a destructive, read-once operation.
- *
- * @param {WordArray|string} dataUpdate The final data to encrypt or decrypt.
- *
- * @return {WordArray} The data after final processing.
- *
- * @example
- *
- * var encrypted = cipher.finalize();
- * var encrypted = cipher.finalize('data');
- * var encrypted = cipher.finalize(wordArray);
- */
- finalize: function (dataUpdate) {
- // Final data update
- if (dataUpdate) {
- this._append(dataUpdate);
- }
-
- // Perform concrete-cipher logic
- var finalProcessedData = this._doFinalize();
-
- return finalProcessedData;
- },
-
- keySize: 128/32,
-
- ivSize: 128/32,
-
- _ENC_XFORM_MODE: 1,
-
- _DEC_XFORM_MODE: 2,
-
- /**
- * Creates shortcut functions to a cipher's object interface.
- *
- * @param {Cipher} cipher The cipher to create a helper for.
- *
- * @return {Object} An object with encrypt and decrypt shortcut functions.
- *
- * @static
- *
- * @example
- *
- * var AES = CryptoJS.lib.Cipher._createHelper(CryptoJS.algo.AES);
- */
- _createHelper: (function () {
- function selectCipherStrategy(key) {
- if (typeof key == 'string') {
- return PasswordBasedCipher;
- } else {
- return SerializableCipher;
- }
- }
-
- return function (cipher) {
- return {
- encrypt: function (message, key, cfg) {
- return selectCipherStrategy(key).encrypt(cipher, message, key, cfg);
- },
-
- decrypt: function (ciphertext, key, cfg) {
- return selectCipherStrategy(key).decrypt(cipher, ciphertext, key, cfg);
- }
- };
- };
- }())
- });
-
- /**
- * Abstract base stream cipher template.
- *
- * @property {number} blockSize The number of 32-bit words this cipher operates on. Default: 1 (32 bits)
- */
- var StreamCipher = C_lib.StreamCipher = Cipher.extend({
- _doFinalize: function () {
- // Process partial blocks
- var finalProcessedBlocks = this._process(!!'flush');
-
- return finalProcessedBlocks;
- },
-
- blockSize: 1
- });
-
- /**
- * Mode namespace.
- */
- var C_mode = C.mode = {};
-
- /**
- * Abstract base block cipher mode template.
- */
- var BlockCipherMode = C_lib.BlockCipherMode = Base.extend({
- /**
- * Creates this mode for encryption.
- *
- * @param {Cipher} cipher A block cipher instance.
- * @param {Array} iv The IV words.
- *
- * @static
- *
- * @example
- *
- * var mode = CryptoJS.mode.CBC.createEncryptor(cipher, iv.words);
- */
- createEncryptor: function (cipher, iv) {
- return this.Encryptor.create(cipher, iv);
- },
-
- /**
- * Creates this mode for decryption.
- *
- * @param {Cipher} cipher A block cipher instance.
- * @param {Array} iv The IV words.
- *
- * @static
- *
- * @example
- *
- * var mode = CryptoJS.mode.CBC.createDecryptor(cipher, iv.words);
- */
- createDecryptor: function (cipher, iv) {
- return this.Decryptor.create(cipher, iv);
- },
-
- /**
- * Initializes a newly created mode.
- *
- * @param {Cipher} cipher A block cipher instance.
- * @param {Array} iv The IV words.
- *
- * @example
- *
- * var mode = CryptoJS.mode.CBC.Encryptor.create(cipher, iv.words);
- */
- init: function (cipher, iv) {
- this._cipher = cipher;
- this._iv = iv;
- }
- });
-
- /**
- * Cipher Block Chaining mode.
- */
- var CBC = C_mode.CBC = (function () {
- /**
- * Abstract base CBC mode.
- */
- var CBC = BlockCipherMode.extend();
-
- /**
- * CBC encryptor.
- */
- CBC.Encryptor = CBC.extend({
- /**
- * Processes the data block at offset.
- *
- * @param {Array} words The data words to operate on.
- * @param {number} offset The offset where the block starts.
- *
- * @example
- *
- * mode.processBlock(data.words, offset);
- */
- processBlock: function (words, offset) {
- // Shortcuts
- var cipher = this._cipher;
- var blockSize = cipher.blockSize;
-
- // XOR and encrypt
- xorBlock.call(this, words, offset, blockSize);
- cipher.encryptBlock(words, offset);
-
- // Remember this block to use with next block
- this._prevBlock = words.slice(offset, offset + blockSize);
- }
- });
-
- /**
- * CBC decryptor.
- */
- CBC.Decryptor = CBC.extend({
- /**
- * Processes the data block at offset.
- *
- * @param {Array} words The data words to operate on.
- * @param {number} offset The offset where the block starts.
- *
- * @example
- *
- * mode.processBlock(data.words, offset);
- */
- processBlock: function (words, offset) {
- // Shortcuts
- var cipher = this._cipher;
- var blockSize = cipher.blockSize;
-
- // Remember this block to use with next block
- var thisBlock = words.slice(offset, offset + blockSize);
-
- // Decrypt and XOR
- cipher.decryptBlock(words, offset);
- xorBlock.call(this, words, offset, blockSize);
-
- // This block becomes the previous block
- this._prevBlock = thisBlock;
- }
- });
-
- function xorBlock(words, offset, blockSize) {
- // Shortcut
- var iv = this._iv;
-
- // Choose mixing block
- if (iv) {
- var block = iv;
-
- // Remove IV for subsequent blocks
- this._iv = undefined;
- } else {
- var block = this._prevBlock;
- }
-
- // XOR blocks
- for (var i = 0; i < blockSize; i++) {
- words[offset + i] ^= block[i];
- }
- }
-
- return CBC;
- }());
-
- /**
- * Padding namespace.
- */
- var C_pad = C.pad = {};
-
- /**
- * PKCS #5/7 padding strategy.
- */
- var Pkcs7 = C_pad.Pkcs7 = {
- /**
- * Pads data using the algorithm defined in PKCS #5/7.
- *
- * @param {WordArray} data The data to pad.
- * @param {number} blockSize The multiple that the data should be padded to.
- *
- * @static
- *
- * @example
- *
- * CryptoJS.pad.Pkcs7.pad(wordArray, 4);
- */
- pad: function (data, blockSize) {
- // Shortcut
- var blockSizeBytes = blockSize * 4;
-
- // Count padding bytes
- var nPaddingBytes = blockSizeBytes - data.sigBytes % blockSizeBytes;
-
- // Create padding word
- var paddingWord = (nPaddingBytes << 24) | (nPaddingBytes << 16) | (nPaddingBytes << 8) | nPaddingBytes;
-
- // Create padding
- var paddingWords = [];
- for (var i = 0; i < nPaddingBytes; i += 4) {
- paddingWords.push(paddingWord);
- }
- var padding = WordArray.create(paddingWords, nPaddingBytes);
-
- // Add padding
- data.concat(padding);
- },
-
- /**
- * Unpads data that had been padded using the algorithm defined in PKCS #5/7.
- *
- * @param {WordArray} data The data to unpad.
- *
- * @static
- *
- * @example
- *
- * CryptoJS.pad.Pkcs7.unpad(wordArray);
- */
- unpad: function (data) {
- // Get number of padding bytes from last byte
- var nPaddingBytes = data.words[(data.sigBytes - 1) >>> 2] & 0xff;
-
- // Remove padding
- data.sigBytes -= nPaddingBytes;
- }
- };
-
- /**
- * Abstract base block cipher template.
- *
- * @property {number} blockSize The number of 32-bit words this cipher operates on. Default: 4 (128 bits)
- */
- var BlockCipher = C_lib.BlockCipher = Cipher.extend({
- /**
- * Configuration options.
- *
- * @property {Mode} mode The block mode to use. Default: CBC
- * @property {Padding} padding The padding strategy to use. Default: Pkcs7
- */
- cfg: Cipher.cfg.extend({
- mode: CBC,
- padding: Pkcs7
- }),
-
- reset: function () {
- // Reset cipher
- Cipher.reset.call(this);
-
- // Shortcuts
- var cfg = this.cfg;
- var iv = cfg.iv;
- var mode = cfg.mode;
-
- // Reset block mode
- if (this._xformMode == this._ENC_XFORM_MODE) {
- var modeCreator = mode.createEncryptor;
- } else /* if (this._xformMode == this._DEC_XFORM_MODE) */ {
- var modeCreator = mode.createDecryptor;
-
- // Keep at least one block in the buffer for unpadding
- this._minBufferSize = 1;
- }
- this._mode = modeCreator.call(mode, this, iv && iv.words);
- },
-
- _doProcessBlock: function (words, offset) {
- this._mode.processBlock(words, offset);
- },
-
- _doFinalize: function () {
- // Shortcut
- var padding = this.cfg.padding;
-
- // Finalize
- if (this._xformMode == this._ENC_XFORM_MODE) {
- // Pad data
- padding.pad(this._data, this.blockSize);
-
- // Process final blocks
- var finalProcessedBlocks = this._process(!!'flush');
- } else /* if (this._xformMode == this._DEC_XFORM_MODE) */ {
- // Process final blocks
- var finalProcessedBlocks = this._process(!!'flush');
-
- // Unpad data
- padding.unpad(finalProcessedBlocks);
- }
-
- return finalProcessedBlocks;
- },
-
- blockSize: 128/32
- });
-
- /**
- * A collection of cipher parameters.
- *
- * @property {WordArray} ciphertext The raw ciphertext.
- * @property {WordArray} key The key to this ciphertext.
- * @property {WordArray} iv The IV used in the ciphering operation.
- * @property {WordArray} salt The salt used with a key derivation function.
- * @property {Cipher} algorithm The cipher algorithm.
- * @property {Mode} mode The block mode used in the ciphering operation.
- * @property {Padding} padding The padding scheme used in the ciphering operation.
- * @property {number} blockSize The block size of the cipher.
- * @property {Format} formatter The default formatting strategy to convert this cipher params object to a string.
- */
- var CipherParams = C_lib.CipherParams = Base.extend({
- /**
- * Initializes a newly created cipher params object.
- *
- * @param {Object} cipherParams An object with any of the possible cipher parameters.
- *
- * @example
- *
- * var cipherParams = CryptoJS.lib.CipherParams.create({
- * ciphertext: ciphertextWordArray,
- * key: keyWordArray,
- * iv: ivWordArray,
- * salt: saltWordArray,
- * algorithm: CryptoJS.algo.AES,
- * mode: CryptoJS.mode.CBC,
- * padding: CryptoJS.pad.PKCS7,
- * blockSize: 4,
- * formatter: CryptoJS.format.OpenSSL
- * });
- */
- init: function (cipherParams) {
- this.mixIn(cipherParams);
- },
-
- /**
- * Converts this cipher params object to a string.
- *
- * @param {Format} formatter (Optional) The formatting strategy to use.
- *
- * @return {string} The stringified cipher params.
- *
- * @throws Error If neither the formatter nor the default formatter is set.
- *
- * @example
- *
- * var string = cipherParams + '';
- * var string = cipherParams.toString();
- * var string = cipherParams.toString(CryptoJS.format.OpenSSL);
- */
- toString: function (formatter) {
- return (formatter || this.formatter).stringify(this);
- }
- });
-
- /**
- * Format namespace.
- */
- var C_format = C.format = {};
-
- /**
- * OpenSSL formatting strategy.
- */
- var OpenSSLFormatter = C_format.OpenSSL = {
- /**
- * Converts a cipher params object to an OpenSSL-compatible string.
- *
- * @param {CipherParams} cipherParams The cipher params object.
- *
- * @return {string} The OpenSSL-compatible string.
- *
- * @static
- *
- * @example
- *
- * var openSSLString = CryptoJS.format.OpenSSL.stringify(cipherParams);
- */
- stringify: function (cipherParams) {
- // Shortcuts
- var ciphertext = cipherParams.ciphertext;
- var salt = cipherParams.salt;
-
- // Format
- if (salt) {
- var wordArray = WordArray.create([0x53616c74, 0x65645f5f]).concat(salt).concat(ciphertext);
- } else {
- var wordArray = ciphertext;
- }
-
- return wordArray.toString(Base64);
- },
-
- /**
- * Converts an OpenSSL-compatible string to a cipher params object.
- *
- * @param {string} openSSLStr The OpenSSL-compatible string.
- *
- * @return {CipherParams} The cipher params object.
- *
- * @static
- *
- * @example
- *
- * var cipherParams = CryptoJS.format.OpenSSL.parse(openSSLString);
- */
- parse: function (openSSLStr) {
- // Parse base64
- var ciphertext = Base64.parse(openSSLStr);
-
- // Shortcut
- var ciphertextWords = ciphertext.words;
-
- // Test for salt
- if (ciphertextWords[0] == 0x53616c74 && ciphertextWords[1] == 0x65645f5f) {
- // Extract salt
- var salt = WordArray.create(ciphertextWords.slice(2, 4));
-
- // Remove salt from ciphertext
- ciphertextWords.splice(0, 4);
- ciphertext.sigBytes -= 16;
- }
-
- return CipherParams.create({ ciphertext: ciphertext, salt: salt });
- }
- };
-
- /**
- * A cipher wrapper that returns ciphertext as a serializable cipher params object.
- */
- var SerializableCipher = C_lib.SerializableCipher = Base.extend({
- /**
- * Configuration options.
- *
- * @property {Formatter} format The formatting strategy to convert cipher param objects to and from a string. Default: OpenSSL
- */
- cfg: Base.extend({
- format: OpenSSLFormatter
- }),
-
- /**
- * Encrypts a message.
- *
- * @param {Cipher} cipher The cipher algorithm to use.
- * @param {WordArray|string} message The message to encrypt.
- * @param {WordArray} key The key.
- * @param {Object} cfg (Optional) The configuration options to use for this operation.
- *
- * @return {CipherParams} A cipher params object.
- *
- * @static
- *
- * @example
- *
- * var ciphertextParams = CryptoJS.lib.SerializableCipher.encrypt(CryptoJS.algo.AES, message, key);
- * var ciphertextParams = CryptoJS.lib.SerializableCipher.encrypt(CryptoJS.algo.AES, message, key, { iv: iv });
- * var ciphertextParams = CryptoJS.lib.SerializableCipher.encrypt(CryptoJS.algo.AES, message, key, { iv: iv, format: CryptoJS.format.OpenSSL });
- */
- encrypt: function (cipher, message, key, cfg) {
- // Apply config defaults
- cfg = this.cfg.extend(cfg);
-
- // Encrypt
- var encryptor = cipher.createEncryptor(key, cfg);
- var ciphertext = encryptor.finalize(message);
-
- // Shortcut
- var cipherCfg = encryptor.cfg;
-
- // Create and return serializable cipher params
- return CipherParams.create({
- ciphertext: ciphertext,
- key: key,
- iv: cipherCfg.iv,
- algorithm: cipher,
- mode: cipherCfg.mode,
- padding: cipherCfg.padding,
- blockSize: cipher.blockSize,
- formatter: cfg.format
- });
- },
-
- /**
- * Decrypts serialized ciphertext.
- *
- * @param {Cipher} cipher The cipher algorithm to use.
- * @param {CipherParams|string} ciphertext The ciphertext to decrypt.
- * @param {WordArray} key The key.
- * @param {Object} cfg (Optional) The configuration options to use for this operation.
- *
- * @return {WordArray} The plaintext.
- *
- * @static
- *
- * @example
- *
- * var plaintext = CryptoJS.lib.SerializableCipher.decrypt(CryptoJS.algo.AES, formattedCiphertext, key, { iv: iv, format: CryptoJS.format.OpenSSL });
- * var plaintext = CryptoJS.lib.SerializableCipher.decrypt(CryptoJS.algo.AES, ciphertextParams, key, { iv: iv, format: CryptoJS.format.OpenSSL });
- */
- decrypt: function (cipher, ciphertext, key, cfg) {
- // Apply config defaults
- cfg = this.cfg.extend(cfg);
-
- // Convert string to CipherParams
- ciphertext = this._parse(ciphertext, cfg.format);
-
- // Decrypt
- var plaintext = cipher.createDecryptor(key, cfg).finalize(ciphertext.ciphertext);
-
- return plaintext;
- },
-
- /**
- * Converts serialized ciphertext to CipherParams,
- * else assumed CipherParams already and returns ciphertext unchanged.
- *
- * @param {CipherParams|string} ciphertext The ciphertext.
- * @param {Formatter} format The formatting strategy to use to parse serialized ciphertext.
- *
- * @return {CipherParams} The unserialized ciphertext.
- *
- * @static
- *
- * @example
- *
- * var ciphertextParams = CryptoJS.lib.SerializableCipher._parse(ciphertextStringOrParams, format);
- */
- _parse: function (ciphertext, format) {
- if (typeof ciphertext == 'string') {
- return format.parse(ciphertext, this);
- } else {
- return ciphertext;
- }
- }
- });
-
- /**
- * Key derivation function namespace.
- */
- var C_kdf = C.kdf = {};
-
- /**
- * OpenSSL key derivation function.
- */
- var OpenSSLKdf = C_kdf.OpenSSL = {
- /**
- * Derives a key and IV from a password.
- *
- * @param {string} password The password to derive from.
- * @param {number} keySize The size in words of the key to generate.
- * @param {number} ivSize The size in words of the IV to generate.
- * @param {WordArray|string} salt (Optional) A 64-bit salt to use. If omitted, a salt will be generated randomly.
- *
- * @return {CipherParams} A cipher params object with the key, IV, and salt.
- *
- * @static
- *
- * @example
- *
- * var derivedParams = CryptoJS.kdf.OpenSSL.execute('Password', 256/32, 128/32);
- * var derivedParams = CryptoJS.kdf.OpenSSL.execute('Password', 256/32, 128/32, 'saltsalt');
- */
- execute: function (password, keySize, ivSize, salt) {
- // Generate random salt
- if (!salt) {
- salt = WordArray.random(64/8);
- }
-
- // Derive key and IV
- var key = EvpKDF.create({ keySize: keySize + ivSize }).compute(password, salt);
-
- // Separate key and IV
- var iv = WordArray.create(key.words.slice(keySize), ivSize * 4);
- key.sigBytes = keySize * 4;
-
- // Return params
- return CipherParams.create({ key: key, iv: iv, salt: salt });
- }
- };
-
- /**
- * A serializable cipher wrapper that derives the key from a password,
- * and returns ciphertext as a serializable cipher params object.
- */
- var PasswordBasedCipher = C_lib.PasswordBasedCipher = SerializableCipher.extend({
- /**
- * Configuration options.
- *
- * @property {KDF} kdf The key derivation function to use to generate a key and IV from a password. Default: OpenSSL
- */
- cfg: SerializableCipher.cfg.extend({
- kdf: OpenSSLKdf
- }),
-
- /**
- * Encrypts a message using a password.
- *
- * @param {Cipher} cipher The cipher algorithm to use.
- * @param {WordArray|string} message The message to encrypt.
- * @param {string} password The password.
- * @param {Object} cfg (Optional) The configuration options to use for this operation.
- *
- * @return {CipherParams} A cipher params object.
- *
- * @static
- *
- * @example
- *
- * var ciphertextParams = CryptoJS.lib.PasswordBasedCipher.encrypt(CryptoJS.algo.AES, message, 'password');
- * var ciphertextParams = CryptoJS.lib.PasswordBasedCipher.encrypt(CryptoJS.algo.AES, message, 'password', { format: CryptoJS.format.OpenSSL });
- */
- encrypt: function (cipher, message, password, cfg) {
- // Apply config defaults
- cfg = this.cfg.extend(cfg);
-
- // Derive key and other params
- var derivedParams = cfg.kdf.execute(password, cipher.keySize, cipher.ivSize);
-
- // Add IV to config
- cfg.iv = derivedParams.iv;
-
- // Encrypt
- var ciphertext = SerializableCipher.encrypt.call(this, cipher, message, derivedParams.key, cfg);
-
- // Mix in derived params
- ciphertext.mixIn(derivedParams);
-
- return ciphertext;
- },
-
- /**
- * Decrypts serialized ciphertext using a password.
- *
- * @param {Cipher} cipher The cipher algorithm to use.
- * @param {CipherParams|string} ciphertext The ciphertext to decrypt.
- * @param {string} password The password.
- * @param {Object} cfg (Optional) The configuration options to use for this operation.
- *
- * @return {WordArray} The plaintext.
- *
- * @static
- *
- * @example
- *
- * var plaintext = CryptoJS.lib.PasswordBasedCipher.decrypt(CryptoJS.algo.AES, formattedCiphertext, 'password', { format: CryptoJS.format.OpenSSL });
- * var plaintext = CryptoJS.lib.PasswordBasedCipher.decrypt(CryptoJS.algo.AES, ciphertextParams, 'password', { format: CryptoJS.format.OpenSSL });
- */
- decrypt: function (cipher, ciphertext, password, cfg) {
- // Apply config defaults
- cfg = this.cfg.extend(cfg);
-
- // Convert string to CipherParams
- ciphertext = this._parse(ciphertext, cfg.format);
-
- // Derive key and other params
- var derivedParams = cfg.kdf.execute(password, cipher.keySize, cipher.ivSize, ciphertext.salt);
-
- // Add IV to config
- cfg.iv = derivedParams.iv;
-
- // Decrypt
- var plaintext = SerializableCipher.decrypt.call(this, cipher, ciphertext, derivedParams.key, cfg);
-
- return plaintext;
- }
- });
-}());
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