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author | weidai <weidai@57ff6487-cd31-0410-9ec3-f628ee90f5f0> | 2002-10-04 17:31:41 +0000 |
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committer | weidai <weidai@57ff6487-cd31-0410-9ec3-f628ee90f5f0> | 2002-10-04 17:31:41 +0000 |
commit | b21162cf8e06f40baa1f58be6a8c17435cebc34d (patch) | |
tree | 8b045309c238226c32a563b1df6b9c30a2f0e0b3 /blowfish.h | |
download | cryptopp-b21162cf8e06f40baa1f58be6a8c17435cebc34d.tar.gz |
Initial revision
git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@2 57ff6487-cd31-0410-9ec3-f628ee90f5f0
Diffstat (limited to 'blowfish.h')
-rw-r--r-- | blowfish.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/blowfish.h b/blowfish.h new file mode 100644 index 0000000..1ca2c20 --- /dev/null +++ b/blowfish.h @@ -0,0 +1,45 @@ +#ifndef CRYPTOPP_BLOWFISH_H +#define CRYPTOPP_BLOWFISH_H + +/** \file */ + +#include "seckey.h" +#include "secblock.h" + +NAMESPACE_BEGIN(CryptoPP) + +struct Blowfish_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 1, 56>, public FixedRounds<16> +{ + static const char *StaticAlgorithmName() {return "Blowfish";} +}; + +//! <a href="http://www.weidai.com/scan-mirror/cs.html#Blowfish">Blowfish</a> +class Blowfish : public Blowfish_Info, public BlockCipherDocumentation +{ + class Base : public BlockCipherBaseTemplate<Blowfish_Info> + { + public: + void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; + void UncheckedSetKey(CipherDir direction, const byte *key_string, unsigned int keylength); + + private: + void crypt_block(const word32 in[2], word32 out[2]) const; + + static const word32 p_init[ROUNDS+2]; + static const word32 s_init[4*256]; + + FixedSizeSecBlock<word32, ROUNDS+2> pbox; + FixedSizeSecBlock<word32, 4*256> sbox; + }; + +public: + typedef BlockCipherTemplate<ENCRYPTION, Base> Encryption; + typedef BlockCipherTemplate<DECRYPTION, Base> Decryption; +}; + +typedef Blowfish::Encryption BlowfishEncryption; +typedef Blowfish::Decryption BlowfishDecryption; + +NAMESPACE_END + +#endif |