111

rk

2025-08-21 4e3e18cdb0d75c098b68353ef8c86cdd7c0f79b2

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;(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;
 
}));