diff options
| author | lloyd <[email protected]> | 2010-02-25 06:04:42 +0000 |
|---|---|---|
| committer | lloyd <[email protected]> | 2010-02-25 06:04:42 +0000 |
| commit | db1b57b499ad34a49adf4a2c53651d79c470b4f2 (patch) | |
| tree | 29f2a209ce43549981ceab0e6c0b079691984970 /src/block | |
| parent | 3ed1e1f8e9928d7242c233919e1255ffb6b41144 (diff) | |
Instead of the mode parallelism being specified via macros, have it
depend on the particular implementation. Add a new virtual function to
BlockCipher named parallelism that returns the number of blocks the
cipher object could or might want to process in parallel. Currently
set to 1 by default but may make sense to increase this for even
scalar implementations since it seems like better caching behavior
makes it a win.
Diffstat (limited to 'src/block')
| -rw-r--r-- | src/block/block_cipher.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/block/block_cipher.h b/src/block/block_cipher.h index 06e8c5cea..b3e1b0e31 100644 --- a/src/block/block_cipher.h +++ b/src/block/block_cipher.h @@ -24,6 +24,11 @@ class BOTAN_DLL BlockCipher : public SymmetricAlgorithm const u32bit BLOCK_SIZE; /** + * @return the preferred parallelism of this cipher + */ + virtual u32bit parallelism() const { return 1; } + + /** * Encrypt a block. * @param in The plaintext block to be encrypted as a byte array. * Must be of length BLOCK_SIZE. |