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authorfriendica <info@friendica.com>2013-11-07 23:25:13 -0800
committerfriendica <info@friendica.com>2013-11-07 23:25:13 -0800
commit3a9cbcaf011f5c5d423e1cd99b43442669692129 (patch)
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+/*
+CryptoJS v3.1.2
+code.google.com/p/crypto-js
+(c) 2009-2013 by Jeff Mott. All rights reserved.
+code.google.com/p/crypto-js/wiki/License
+*/
+/**
+ * Zero padding strategy.
+ */
+CryptoJS.pad.ZeroPadding = {
+ pad: function (data, blockSize) {
+ // Shortcut
+ var blockSizeBytes = blockSize * 4;
+
+ // Pad
+ data.clamp();
+ data.sigBytes += blockSizeBytes - ((data.sigBytes % blockSizeBytes) || blockSizeBytes);
+ },
+
+ unpad: function (data) {
+ // Shortcut
+ var dataWords = data.words;
+
+ // Unpad
+ var i = data.sigBytes - 1;
+ while (!((dataWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff)) {
+ i--;
+ }
+ data.sigBytes = i + 1;
+ }
+};