;(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) {

/**
 * ANSI X.923 padding strategy.
 */
CryptoJS.pad.AnsiX923 = {
    pad: function (data, blockSize) {
        // Shortcuts
        var dataSigBytes = data.sigBytes;
        var blockSizeBytes = blockSize * 4;

        // Count padding bytes
        var nPaddingBytes = blockSizeBytes - dataSigBytes % blockSizeBytes;

        // Compute last byte position
        var lastBytePos = dataSigBytes + nPaddingBytes - 1;

        // Pad
        data.clamp();
        data.words[lastBytePos >>> 2] |= nPaddingBytes << (24 - (lastBytePos % 4) * 8);
        data.sigBytes += nPaddingBytes;
    },

    unpad: function (data) {
        // Get number of padding bytes from last byte
        var nPaddingBytes = data.words[(data.sigBytes - 1) >>> 2] & 0xff;

        // Remove padding
        data.sigBytes -= nPaddingBytes;
    }
};

return CryptoJS.pad.Ansix923;

}));