diff options
Diffstat (limited to 'bot/node_modules/crypto-js/mode-ctr.js')
| -rw-r--r-- | bot/node_modules/crypto-js/mode-ctr.js | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/bot/node_modules/crypto-js/mode-ctr.js b/bot/node_modules/crypto-js/mode-ctr.js new file mode 100644 index 0000000..c3d470a --- /dev/null +++ b/bot/node_modules/crypto-js/mode-ctr.js @@ -0,0 +1,58 @@ +;(function (root, factory, undef) { + if (typeof exports === "object") { + // CommonJS + module.exports = exports = factory(require("./core"), require("./cipher-core")); + } + else if (typeof define === "function" && define.amd) { + // AMD + define(["./core", "./cipher-core"], factory); + } + else { + // Global (browser) + factory(root.CryptoJS); + } +}(this, function (CryptoJS) { + + /** + * Counter block mode. + */ + CryptoJS.mode.CTR = (function () { + var CTR = CryptoJS.lib.BlockCipherMode.extend(); + + var Encryptor = CTR.Encryptor = CTR.extend({ + processBlock: function (words, offset) { + // Shortcuts + var cipher = this._cipher + var blockSize = cipher.blockSize; + var iv = this._iv; + var counter = this._counter; + + // Generate keystream + if (iv) { + counter = this._counter = iv.slice(0); + + // Remove IV for subsequent blocks + this._iv = undefined; + } + var keystream = counter.slice(0); + cipher.encryptBlock(keystream, 0); + + // Increment counter + counter[blockSize - 1] = (counter[blockSize - 1] + 1) | 0 + + // Encrypt + for (var i = 0; i < blockSize; i++) { + words[offset + i] ^= keystream[i]; + } + } + }); + + CTR.Decryptor = Encryptor; + + return CTR; + }()); + + + return CryptoJS.mode.CTR; + +}));
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