YLShipBuildLandMap/YLShipBuildLandMap.Web/wwwroot/scripts/crypto-js/hmac.js

;(function (root, factory) {
    if (typeof exports === "object") {
        // CommonJS
        module.exports = exports = factory(require("./core"));
    } else if (typeof define === "function" && define.amd) {
        // AMD
        define(["./core"], factory);
    } else {
        // Global (browser)
        factory(root.CryptoJS);
    }
}(this, function (CryptoJS) {

    (function () {
        // Shortcuts
        var C = CryptoJS;
        var C_lib = C.lib;
        var Base = C_lib.Base;
        var C_enc = C.enc;
        var Utf8 = C_enc.Utf8;
        var C_algo = C.algo;

        /**
         * HMAC algorithm.
         */
        var HMAC = C_algo.HMAC = Base.extend({
            /**
             * Initializes a newly created HMAC.
             *
             * @param {Hasher} hasher The hash algorithm to use.
             * @param {WordArray|string} key The secret key.
             *
             * @example
             *
             *     var hmacHasher = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256, key);
             */
            init: function (hasher, key) {
                // Init hasher
                hasher = this._hasher = new hasher.init();

                // Convert string to WordArray, else assume WordArray already
                if (typeof key == 'string') {
                    key = Utf8.parse(key);
                }

                // Shortcuts
                var hasherBlockSize = hasher.blockSize;
                var 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
                var oKey = this._oKey = key.clone();
                var iKey = this._iKey = key.clone();

                // Shortcuts
                var oKeyWords = oKey.words;
                var iKeyWords = iKey.words;

                // XOR keys with pad constants
                for (var i = 0; i < hasherBlockSize; i++) {
                    oKeyWords[i] ^= 0x5c5c5c5c;
                    iKeyWords[i] ^= 0x36363636;
                }
                oKey.sigBytes = iKey.sigBytes = hasherBlockSizeBytes;

                // Set initial values
                this.reset();
            },

            /**
             * Resets this HMAC to its initial state.
             *
             * @example
             *
             *     hmacHasher.reset();
             */
            reset: function () {
                // Shortcut
                var 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: function (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: function (messageUpdate) {
                // Shortcut
                var hasher = this._hasher;

                // Compute HMAC
                var innerHash = hasher.finalize(messageUpdate);
                hasher.reset();
                var hmac = hasher.finalize(this._oKey.clone().concat(innerHash));

                return hmac;
            }
        });
    }());


}));