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authorlloyd <[email protected]>2008-11-23 02:03:16 +0000
committerlloyd <[email protected]>2008-11-23 02:03:16 +0000
commitf4ad8ecfa14b59dbf06a9595f8dacccb3b7f04e3 (patch)
tree76077c951bb44373ad7c2ca632f2e24cf758e88f /src/hash/sha2/sha2_32.h
parent8ec4a1fe7e8af6f8223908cdf8fe7de39170fc2a (diff)
I had not anticipated this being really worthwhile, but it turns out
to have been so! Change MDx_HashFunction::hash to a new compress_n which hashes an arbitrary number of blocks. I had a thought this might reduce a bit of loop overhead but the results were far better than I anticipated. Speedup across the board of about 2%, and very noticable (+10%) increases for MD4 and Tiger (probably b/c both of those have so few instructions in each iteration of the compression function). Before: SHA-1: amd64: 211.9 MiB/s core: 210.0 MiB/s sse2: 295.2 MiB/s MD4: 476.2 MiB/s MD5: 355.2 MiB/s SHA-256: 99.8 MiB/s SHA-512: 151.4 MiB/s RIPEMD-128: 326.9 MiB/s RIPEMD-160: 225.1 MiB/s Tiger: 214.8 MiB/s Whirlpool: 38.4 MiB/s After: SHA-1: amd64: 215.6 MiB/s core: 213.8 MiB/s sse2: 299.9 MiB/s MD4: 528.4 MiB/s MD5: 368.8 MiB/s SHA-256: 103.9 MiB/s SHA-512: 156.8 MiB/s RIPEMD-128: 334.8 MiB/s RIPEMD-160: 229.7 MiB/s Tiger: 240.7 MiB/s Whirlpool: 38.6 MiB/s
Diffstat (limited to 'src/hash/sha2/sha2_32.h')
-rw-r--r--src/hash/sha2/sha2_32.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/hash/sha2/sha2_32.h b/src/hash/sha2/sha2_32.h
index 220767c1b..f4c8d978a 100644
--- a/src/hash/sha2/sha2_32.h
+++ b/src/hash/sha2/sha2_32.h
@@ -24,7 +24,7 @@ class BOTAN_DLL SHA_224_256_BASE : public MDx_HashFunction
SecureBuffer<u32bit, 64> W;
SecureBuffer<u32bit, 8> digest;
private:
- void hash(const byte[]);
+ void compress_n(const byte[], u32bit blocks);
void copy_out(byte[]);
};