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47 lines
1.1 KiB
47 lines
1.1 KiB
;(function (root, factory, undef) { |
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if (typeof exports === "object") { |
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// CommonJS |
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module.exports = exports = factory(require("./core"), require("./cipher-core")); |
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} |
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else if (typeof define === "function" && define.amd) { |
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// AMD |
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define(["./core", "./cipher-core"], factory); |
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} |
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else { |
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// Global (browser) |
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factory(root.CryptoJS); |
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} |
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}(this, function (CryptoJS) { |
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|
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/** |
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* Zero padding strategy. |
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*/ |
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CryptoJS.pad.ZeroPadding = { |
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pad: function (data, blockSize) { |
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// Shortcut |
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var blockSizeBytes = blockSize * 4; |
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|
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// Pad |
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data.clamp(); |
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data.sigBytes += blockSizeBytes - ((data.sigBytes % blockSizeBytes) || blockSizeBytes); |
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}, |
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unpad: function (data) { |
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// Shortcut |
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var dataWords = data.words; |
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|
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// Unpad |
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var i = data.sigBytes - 1; |
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for (var i = data.sigBytes - 1; i >= 0; i--) { |
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if (((dataWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff)) { |
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data.sigBytes = i + 1; |
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break; |
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} |
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} |
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} |
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}; |
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return CryptoJS.pad.ZeroPadding; |
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})); |