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authorPliable Pixels <pliablepixels@gmail.com>2017-09-21 12:49:18 -0400
committerPliable Pixels <pliablepixels@gmail.com>2017-09-21 12:49:18 -0400
commitb28028ac4082842143b0f528d6bc539da6ccb419 (patch)
tree1e26ea969a781ed8e323fca4e3c76345113fc694 /www/lib/crypto-js/pad-ansix923.js
parent676270d21beed31d767a06c89522198c77d5d865 (diff)
mega changes, including updates and X
Diffstat (limited to 'www/lib/crypto-js/pad-ansix923.js')
-rw-r--r--www/lib/crypto-js/pad-ansix923.js49
1 files changed, 49 insertions, 0 deletions
diff --git a/www/lib/crypto-js/pad-ansix923.js b/www/lib/crypto-js/pad-ansix923.js
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+;(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;
+
+})); \ No newline at end of file