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| author | Paolo T <tuscanhobbit@users.noreply.github.com> | 2013-11-12 02:09:32 -0800 |
|---|---|---|
| committer | Paolo T <tuscanhobbit@users.noreply.github.com> | 2013-11-12 02:09:32 -0800 |
| commit | 67a101452b82782114143dc0b5bdba15adc0ba99 (patch) | |
| tree | 9daee3807b370d02ee4c28e6df7db08731fbb9f1 /library/cryptojs/components/pad-ansix923.js | |
| parent | b23f3fc03b6bc751aab67fe2258a21f7c65bab8e (diff) | |
| parent | 7cb4c2f8ad813336aafdec05e40f3a8eb1808d00 (diff) | |
| download | volse-hubzilla-67a101452b82782114143dc0b5bdba15adc0ba99.tar.gz volse-hubzilla-67a101452b82782114143dc0b5bdba15adc0ba99.tar.bz2 volse-hubzilla-67a101452b82782114143dc0b5bdba15adc0ba99.zip | |
Merge pull request #4 from friendica/master
Fork aligned to red master
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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