diff options
Diffstat (limited to 'des.h')
| -rw-r--r-- | des.h | 30 |
1 files changed, 17 insertions, 13 deletions
@@ -9,9 +9,22 @@ NAMESPACE_BEGIN(CryptoPP) +class CRYPTOPP_DLL RawDES +{ +public: + void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length = 8); + void RawProcessBlock(word32 &l, word32 &r) const; + +protected: + static const word32 Spbox[8][64]; + + FixedSizeSecBlock<word32, 32> k; +}; + struct DES_Info : public FixedBlockSize<8>, public FixedKeyLength<8> { - CRYPTOPP_DLL static const char * StaticAlgorithmName() {return "DES";} + // disable DES in DLL version by not exporting this function + static const char * StaticAlgorithmName() {return "DES";} }; /// <a href="http://www.weidai.com/scan-mirror/cs.html#DES">DES</a> @@ -21,19 +34,10 @@ struct DES_Info : public FixedBlockSize<8>, public FixedKeyLength<8> check or correct the parity bits if you wish. */ class DES : public DES_Info, public BlockCipherDocumentation { - class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_Info> + class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_Info>, public RawDES { public: - void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length = 8); void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; - - // exposed for faster Triple-DES - void RawProcessBlock(word32 &l, word32 &r) const; - - protected: - static const word32 Spbox[8][64]; - - FixedSizeSecBlock<word32, 32> k; }; public: @@ -61,7 +65,7 @@ class DES_EDE2 : public DES_EDE2_Info, public BlockCipherDocumentation void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; protected: - DES::Encryption m_des1, m_des2; + RawDES m_des1, m_des2; }; public: @@ -84,7 +88,7 @@ class DES_EDE3 : public DES_EDE3_Info, public BlockCipherDocumentation void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; protected: - DES::Encryption m_des1, m_des2, m_des3; + RawDES m_des1, m_des2, m_des3; }; public: |