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| author | friendica <info@friendica.com> | 2013-11-07 23:25:13 -0800 |
|---|---|---|
| committer | friendica <info@friendica.com> | 2013-11-07 23:25:13 -0800 |
| commit | 3a9cbcaf011f5c5d423e1cd99b43442669692129 (patch) | |
| tree | d160f11dd97871d94ffe6e6d10ea48ce57eed357 /library/cryptojs/components/pad-ansix923.js | |
| parent | 90ab0d963bf5074643c6f275dbb8595b6c51a03d (diff) | |
| download | volse-hubzilla-3a9cbcaf011f5c5d423e1cd99b43442669692129.tar.gz volse-hubzilla-3a9cbcaf011f5c5d423e1cd99b43442669692129.tar.bz2 volse-hubzilla-3a9cbcaf011f5c5d423e1cd99b43442669692129.zip | |
Wankers.
Diffstat (limited to 'library/cryptojs/components/pad-ansix923.js')
| -rw-r--r-- | library/cryptojs/components/pad-ansix923.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/library/cryptojs/components/pad-ansix923.js b/library/cryptojs/components/pad-ansix923.js new file mode 100644 index 000000000..4da25d68e --- /dev/null +++ b/library/cryptojs/components/pad-ansix923.js @@ -0,0 +1,35 @@ +/* +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 +*/ +/**
+ * 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;
+ }
+};
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