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1;(function (root, factory) {2	if (typeof exports === "object") {3		// CommonJS4		module.exports = exports = factory(require("./core"));5	}6	else if (typeof define === "function" && define.amd) {7		// AMD8		define(["./core"], factory);9	}10	else {11		// Global (browser)12		factory(root.CryptoJS);13	}14}(this, function (CryptoJS) {15 16	(function () {17	    // Shortcuts18	    var C = CryptoJS;19	    var C_lib = C.lib;20	    var WordArray = C_lib.WordArray;21	    var C_enc = C.enc;22 23	    /**24	     * Base64 encoding strategy.25	     */26	    var Base64 = C_enc.Base64 = {27	        /**28	         * Converts a word array to a Base64 string.29	         *30	         * @param {WordArray} wordArray The word array.31	         *32	         * @return {string} The Base64 string.33	         *34	         * @static35	         *36	         * @example37	         *38	         *     var base64String = CryptoJS.enc.Base64.stringify(wordArray);39	         */40	        stringify: function (wordArray) {41	            // Shortcuts42	            var words = wordArray.words;43	            var sigBytes = wordArray.sigBytes;44	            var map = this._map;45 46	            // Clamp excess bits47	            wordArray.clamp();48 49	            // Convert50	            var base64Chars = [];51	            for (var i = 0; i < sigBytes; i += 3) {52	                var byte1 = (words[i >>> 2]       >>> (24 - (i % 4) * 8))       & 0xff;53	                var byte2 = (words[(i + 1) >>> 2] >>> (24 - ((i + 1) % 4) * 8)) & 0xff;54	                var byte3 = (words[(i + 2) >>> 2] >>> (24 - ((i + 2) % 4) * 8)) & 0xff;55 56	                var triplet = (byte1 << 16) | (byte2 << 8) | byte3;57 58	                for (var j = 0; (j < 4) && (i + j * 0.75 < sigBytes); j++) {59	                    base64Chars.push(map.charAt((triplet >>> (6 * (3 - j))) & 0x3f));60	                }61	            }62 63	            // Add padding64	            var paddingChar = map.charAt(64);65	            if (paddingChar) {66	                while (base64Chars.length % 4) {67	                    base64Chars.push(paddingChar);68	                }69	            }70 71	            return base64Chars.join('');72	        },73 74	        /**75	         * Converts a Base64 string to a word array.76	         *77	         * @param {string} base64Str The Base64 string.78	         *79	         * @return {WordArray} The word array.80	         *81	         * @static82	         *83	         * @example84	         *85	         *     var wordArray = CryptoJS.enc.Base64.parse(base64String);86	         */87	        parse: function (base64Str) {88	            // Shortcuts89	            var base64StrLength = base64Str.length;90	            var map = this._map;91	            var reverseMap = this._reverseMap;92 93	            if (!reverseMap) {94	                    reverseMap = this._reverseMap = [];95	                    for (var j = 0; j < map.length; j++) {96	                        reverseMap[map.charCodeAt(j)] = j;97	                    }98	            }99 100	            // Ignore padding101	            var paddingChar = map.charAt(64);102	            if (paddingChar) {103	                var paddingIndex = base64Str.indexOf(paddingChar);104	                if (paddingIndex !== -1) {105	                    base64StrLength = paddingIndex;106	                }107	            }108 109	            // Convert110	            return parseLoop(base64Str, base64StrLength, reverseMap);111 112	        },113 114	        _map: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='115	    };116 117	    function parseLoop(base64Str, base64StrLength, reverseMap) {118	      var words = [];119	      var nBytes = 0;120	      for (var i = 0; i < base64StrLength; i++) {121	          if (i % 4) {122	              var bits1 = reverseMap[base64Str.charCodeAt(i - 1)] << ((i % 4) * 2);123	              var bits2 = reverseMap[base64Str.charCodeAt(i)] >>> (6 - (i % 4) * 2);124	              var bitsCombined = bits1 | bits2;125	              words[nBytes >>> 2] |= bitsCombined << (24 - (nBytes % 4) * 8);126	              nBytes++;127	          }128	      }129	      return WordArray.create(words, nBytes);130	    }131	}());132 133 134	return CryptoJS.enc.Base64;135 136}));