;(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;
|
|
}));
|
