YLShipBuildLandMap/YLShipBuildLandMap.Web/wwwroot/scripts/crypto-js/sha256.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 (Math) {
        // Shortcuts
        var C = CryptoJS;
        var C_lib = C.lib;
        var WordArray = C_lib.WordArray;
        var Hasher = C_lib.Hasher;
        var C_algo = C.algo;

        // Initialization and round constants tables
        var H = [];
        var K = [];

        // Compute constants
        (function () {
            function isPrime(n) {
                var sqrtN = Math.sqrt(n);
                for (var factor = 2; factor <= sqrtN; factor++) {
                    if (!(n % factor)) {
                        return false;
                    }
                }

                return true;
            }

            function getFractionalBits(n) {
                return ((n - (n | 0)) * 0x100000000) | 0;
            }

            var n = 2;
            var nPrime = 0;
            while (nPrime < 64) {
                if (isPrime(n)) {
                    if (nPrime < 8) {
                        H[nPrime] = getFractionalBits(Math.pow(n, 1 / 2));
                    }
                    K[nPrime] = getFractionalBits(Math.pow(n, 1 / 3));

                    nPrime++;
                }

                n++;
            }
        }());

        // Reusable object
        var W = [];

        /**
         * SHA-256 hash algorithm.
         */
        var SHA256 = C_algo.SHA256 = Hasher.extend({
            _doReset: function () {
                this._hash = new WordArray.init(H.slice(0));
            },

            _doProcessBlock: function (M, offset) {
                // Shortcut
                var H = this._hash.words;

                // Working variables
                var a = H[0];
                var b = H[1];
                var c = H[2];
                var d = H[3];
                var e = H[4];
                var f = H[5];
                var g = H[6];
                var h = H[7];

                // Computation
                for (var i = 0; i < 64; i++) {
                    if (i < 16) {
                        W[i] = M[offset + i] | 0;
                    } else {
                        var gamma0x = W[i - 15];
                        var gamma0 = ((gamma0x << 25) | (gamma0x >>> 7)) ^
                            ((gamma0x << 14) | (gamma0x >>> 18)) ^
                            (gamma0x >>> 3);

                        var gamma1x = W[i - 2];
                        var gamma1 = ((gamma1x << 15) | (gamma1x >>> 17)) ^
                            ((gamma1x << 13) | (gamma1x >>> 19)) ^
                            (gamma1x >>> 10);

                        W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16];
                    }

                    var ch = (e & f) ^ (~e & g);
                    var maj = (a & b) ^ (a & c) ^ (b & c);

                    var sigma0 = ((a << 30) | (a >>> 2)) ^ ((a << 19) | (a >>> 13)) ^ ((a << 10) | (a >>> 22));
                    var sigma1 = ((e << 26) | (e >>> 6)) ^ ((e << 21) | (e >>> 11)) ^ ((e << 7) | (e >>> 25));

                    var t1 = h + sigma1 + ch + K[i] + W[i];
                    var t2 = sigma0 + maj;

                    h = g;
                    g = f;
                    f = e;
                    e = (d + t1) | 0;
                    d = c;
                    c = b;
                    b = a;
                    a = (t1 + t2) | 0;
                }

                // Intermediate hash value
                H[0] = (H[0] + a) | 0;
                H[1] = (H[1] + b) | 0;
                H[2] = (H[2] + c) | 0;
                H[3] = (H[3] + d) | 0;
                H[4] = (H[4] + e) | 0;
                H[5] = (H[5] + f) | 0;
                H[6] = (H[6] + g) | 0;
                H[7] = (H[7] + h) | 0;
            },

            _doFinalize: function () {
                // Shortcuts
                var data = this._data;
                var dataWords = data.words;

                var nBitsTotal = this._nDataBytes * 8;
                var nBitsLeft = data.sigBytes * 8;

                // Add padding
                dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);
                dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 14] = Math.floor(nBitsTotal / 0x100000000);
                dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 15] = nBitsTotal;
                data.sigBytes = dataWords.length * 4;

                // Hash final blocks
                this._process();

                // Return final computed hash
                return this._hash;
            },

            clone: function () {
                var clone = Hasher.clone.call(this);
                clone._hash = this._hash.clone();

                return clone;
            }
        });

        /**
         * Shortcut function to the hasher's object interface.
         *
         * @param {WordArray|string} message The message to hash.
         *
         * @return {WordArray} The hash.
         *
         * @static
         *
         * @example
         *
         *     var hash = CryptoJS.SHA256('message');
         *     var hash = CryptoJS.SHA256(wordArray);
         */
        C.SHA256 = Hasher._createHelper(SHA256);

        /**
         * Shortcut function to the HMAC's object interface.
         *
         * @param {WordArray|string} message The message to hash.
         * @param {WordArray|string} key The secret key.
         *
         * @return {WordArray} The HMAC.
         *
         * @static
         *
         * @example
         *
         *     var hmac = CryptoJS.HmacSHA256(message, key);
         */
        C.HmacSHA256 = Hasher._createHmacHelper(SHA256);
    }(Math));


    return CryptoJS.SHA256;

}));