diff options
Diffstat (limited to 'www/lib/crypto-js/pad-iso10126.js')
| -rw-r--r-- | www/lib/crypto-js/pad-iso10126.js | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/www/lib/crypto-js/pad-iso10126.js b/www/lib/crypto-js/pad-iso10126.js new file mode 100644 index 00000000..6e2aefd8 --- /dev/null +++ b/www/lib/crypto-js/pad-iso10126.js @@ -0,0 +1,44 @@ +;(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) { + + /** + * ISO 10126 padding strategy. + */ + CryptoJS.pad.Iso10126 = { + pad: function (data, blockSize) { + // Shortcut + var blockSizeBytes = blockSize * 4; + + // Count padding bytes + var nPaddingBytes = blockSizeBytes - data.sigBytes % blockSizeBytes; + + // Pad + data.concat(CryptoJS.lib.WordArray.random(nPaddingBytes - 1)). + concat(CryptoJS.lib.WordArray.create([nPaddingBytes << 24], 1)); + }, + + 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.Iso10126; + +}));
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