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authorMattias Andrée <maandree@operamail.com>2013-04-16 00:06:18 +0200
committerMattias Andrée <maandree@operamail.com>2013-04-16 00:06:18 +0200
commit90258fdadace50db3ef72a46aa84e9004c7cb61a (patch)
tree4813be3ed649b7bcdb4588aa6cc28613da80576d /pure-java/SHA3.java
parentwhoops, read the filesize instead of the blocksize (diff)
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fix binary logarithm
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'pure-java/SHA3.java')
-rw-r--r--pure-java/SHA3.java10
1 files changed, 6 insertions, 4 deletions
diff --git a/pure-java/SHA3.java b/pure-java/SHA3.java
index 0568b1f..6253094 100644
--- a/pure-java/SHA3.java
+++ b/pure-java/SHA3.java
@@ -150,10 +150,12 @@ public class SHA3
*/
private static int lb(int x)
{
- return (((x & 0xFF00) == 0 ? 0 : 8) +
- ((x & 0xF0F0) == 0 ? 0 : 4)) +
- (((x & 0xCCCC) == 0 ? 0 : 2) +
- ((x & 0xAAAA) == 0 ? 0 : 1));
+ int rc = 0;
+ if ((x & 0xFF00) != 0) { rc += 8; x >>= 8; }
+ if ((x & 0x00F0) != 0) { rc += 4; x >>= 4; }
+ if ((x & 0x000C) != 0) { rc += 2; x >>= 2; }
+ if ((x & 0x0002) != 0) rc += 1;
+ return rc;
}
/**