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authorlloyd <[email protected]>2010-10-28 21:15:21 +0000
committerlloyd <[email protected]>2010-10-28 21:15:21 +0000
commit22f02b418f7f53431da168abe9fb74f15bf3cb0e (patch)
treecdc81938c979403d20a438d134bbd6d64479f17d /src/stream/ctr/ctr.h
parenta7a047e6823dcbf23e172dd5c0f9a7b4fd748f10 (diff)
Eliminate the constant size_t values in SymmetricAlgorithm that give
the parameters of the key length. Instead define a new function which returns a simple object which contains this information. This definitely breaks backwards compatability, though only with code that directly manipulates low level objects like BlockCipher*s directly, which is probably relatively rare. Also remove some deprecated accessor functions from lookup.h. It turns out block_size_of and output_size_of are being used in the TLS code; I need to remove them from there before I can delete these entirely. Really that didn't make much sense, because they assumed all implementations of a particular algorithm will have the same specifications, which is definitely not necessarily true, especially WRT key length. It is much safer (and probably simpler) to first retrieve an instance of the actual object you are going to use and then ask it directly.
Diffstat (limited to 'src/stream/ctr/ctr.h')
-rw-r--r--src/stream/ctr/ctr.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/stream/ctr/ctr.h b/src/stream/ctr/ctr.h
index e62ab2860..64b43b0f5 100644
--- a/src/stream/ctr/ctr.h
+++ b/src/stream/ctr/ctr.h
@@ -26,6 +26,11 @@ class BOTAN_DLL CTR_BE : public StreamCipher
bool valid_iv_length(size_t iv_len) const
{ return (iv_len <= permutation->block_size()); }
+ Key_Length_Specification key_spec() const
+ {
+ return permutation->key_spec();
+ }
+
std::string name() const;
CTR_BE* clone() const