You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
145 lines
4.4 KiB
145 lines
4.4 KiB
![]()
4 years ago
|
#ifndef CRYPTOPP_DES_H
|
||
|
#define CRYPTOPP_DES_H
|
||
|
|
||
|
/** \file
|
||
|
*/
|
||
|
|
||
|
#include "seckey.h"
|
||
|
#include "secblock.h"
|
||
|
|
||
|
NAMESPACE_BEGIN(CryptoPP)
|
||
|
|
||
|
class CRYPTOPP_DLL RawDES
|
||
|
{
|
||
|
public:
|
||
|
void RawSetKey(CipherDir direction, const byte *userKey);
|
||
|
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>
|
||
|
{
|
||
|
// 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>
|
||
|
/*! The DES implementation in Crypto++ ignores the parity bits
|
||
|
(the least significant bits of each byte) in the key. However
|
||
|
you can use CheckKeyParityBits() and CorrectKeyParityBits() to
|
||
|
check or correct the parity bits if you wish. */
|
||
|
class DES : public DES_Info, public BlockCipherDocumentation
|
||
|
{
|
||
|
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_Info>, public RawDES
|
||
|
{
|
||
|
public:
|
||
|
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms);
|
||
|
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
|
||
|
};
|
||
|
|
||
|
public:
|
||
|
//! check DES key parity bits
|
||
|
static bool CheckKeyParityBits(const byte *key);
|
||
|
//! correct DES key parity bits
|
||
|
static void CorrectKeyParityBits(byte *key);
|
||
|
|
||
|
typedef BlockCipherFinal<ENCRYPTION, Base> Encryption;
|
||
|
typedef BlockCipherFinal<DECRYPTION, Base> Decryption;
|
||
|
};
|
||
|
|
||
|
//! _
|
||
|
struct DES_EDE2_Info : public FixedBlockSize<8>, public FixedKeyLength<16>
|
||
|
{
|
||
|
CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "DES-EDE2";}
|
||
|
};
|
||
|
|
||
|
/// <a href="http://www.weidai.com/scan-mirror/cs.html#DESede">DES-EDE2</a>
|
||
|
class DES_EDE2 : public DES_EDE2_Info, public BlockCipherDocumentation
|
||
|
{
|
||
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_EDE2_Info>
|
||
|
{
|
||
|
public:
|
||
|
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms);
|
||
|
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
|
||
|
|
||
|
protected:
|
||
|
RawDES m_des1, m_des2;
|
||
|
};
|
||
|
|
||
|
public:
|
||
|
typedef BlockCipherFinal<ENCRYPTION, Base> Encryption;
|
||
|
typedef BlockCipherFinal<DECRYPTION, Base> Decryption;
|
||
|
};
|
||
|
|
||
|
//! _
|
||
|
struct DES_EDE3_Info : public FixedBlockSize<8>, public FixedKeyLength<24>
|
||
|
{
|
||
|
CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "DES-EDE3";}
|
||
|
};
|
||
|
|
||
|
/// <a href="http://www.weidai.com/scan-mirror/cs.html#DESede">DES-EDE3</a>
|
||
|
class DES_EDE3 : public DES_EDE3_Info, public BlockCipherDocumentation
|
||
|
{
|
||
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_EDE3_Info>
|
||
|
{
|
||
|
public:
|
||
|
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms);
|
||
|
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
|
||
|
|
||
|
protected:
|
||
|
RawDES m_des1, m_des2, m_des3;
|
||
|
};
|
||
|
|
||
|
public:
|
||
|
typedef BlockCipherFinal<ENCRYPTION, Base> Encryption;
|
||
|
typedef BlockCipherFinal<DECRYPTION, Base> Decryption;
|
||
|
};
|
||
|
|
||
|
//! _
|
||
|
struct DES_XEX3_Info : public FixedBlockSize<8>, public FixedKeyLength<24>
|
||
|
{
|
||
|
static const char *StaticAlgorithmName() {return "DES-XEX3";}
|
||
|
};
|
||
|
|
||
|
/// <a href="http://www.weidai.com/scan-mirror/cs.html#DESX">DES-XEX3</a>, AKA DESX
|
||
|
class DES_XEX3 : public DES_XEX3_Info, public BlockCipherDocumentation
|
||
|
{
|
||
|
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_XEX3_Info>
|
||
|
{
|
||
|
public:
|
||
|
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms);
|
||
|
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
|
||
|
|
||
|
protected:
|
||
|
FixedSizeSecBlock<byte, BLOCKSIZE> m_x1, m_x3;
|
||
|
// VS2005 workaround: calling modules compiled with /clr gets unresolved external symbol DES::Base::ProcessAndXorBlock
|
||
|
// if we use DES::Encryption here directly without value_ptr.
|
||
|
value_ptr<DES::Encryption> m_des;
|
||
|
};
|
||
|
|
||
|
public:
|
||
|
typedef BlockCipherFinal<ENCRYPTION, Base> Encryption;
|
||
|
typedef BlockCipherFinal<DECRYPTION, Base> Decryption;
|
||
|
};
|
||
|
|
||
|
typedef DES::Encryption DESEncryption;
|
||
|
typedef DES::Decryption DESDecryption;
|
||
|
|
||
|
typedef DES_EDE2::Encryption DES_EDE2_Encryption;
|
||
|
typedef DES_EDE2::Decryption DES_EDE2_Decryption;
|
||
|
|
||
|
typedef DES_EDE3::Encryption DES_EDE3_Encryption;
|
||
|
typedef DES_EDE3::Decryption DES_EDE3_Decryption;
|
||
|
|
||
|
typedef DES_XEX3::Encryption DES_XEX3_Encryption;
|
||
|
typedef DES_XEX3::Decryption DES_XEX3_Decryption;
|
||
|
|
||
|
NAMESPACE_END
|
||
|
|
||
|
#endif
|