LIOT/EMIS.Web/Scripts/Bowin.Control.Core/Plugins/crypto-js/mode-ctr.js

;(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;

}));