539364846a
git-svn-id: http://mc-server.googlecode.com/svn/trunk@808 0a769ca7-a7f5-676a-18bf-c427514a06d6
423 lines
17 KiB
C++
423 lines
17 KiB
C++
#ifndef CRYPTOPP_MODES_H
|
|
#define CRYPTOPP_MODES_H
|
|
|
|
/*! \file
|
|
*/
|
|
|
|
#include "cryptlib.h"
|
|
#include "secblock.h"
|
|
#include "misc.h"
|
|
#include "strciphr.h"
|
|
#include "argnames.h"
|
|
#include "algparam.h"
|
|
|
|
NAMESPACE_BEGIN(CryptoPP)
|
|
|
|
//! Cipher modes documentation. See NIST SP 800-38A for definitions of these modes. See AuthenticatedSymmetricCipherDocumentation for authenticated encryption modes.
|
|
|
|
/*! Each class derived from this one defines two types, Encryption and Decryption,
|
|
both of which implement the SymmetricCipher interface.
|
|
For each mode there are two classes, one of which is a template class,
|
|
and the other one has a name that ends in "_ExternalCipher".
|
|
The "external cipher" mode objects hold a reference to the underlying block cipher,
|
|
instead of holding an instance of it. The reference must be passed in to the constructor.
|
|
For the "cipher holder" classes, the CIPHER template parameter should be a class
|
|
derived from BlockCipherDocumentation, for example DES or AES.
|
|
*/
|
|
struct CipherModeDocumentation : public SymmetricCipherDocumentation
|
|
{
|
|
};
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CipherModeBase : public SymmetricCipher
|
|
{
|
|
public:
|
|
size_t MinKeyLength() const {return m_cipher->MinKeyLength();}
|
|
size_t MaxKeyLength() const {return m_cipher->MaxKeyLength();}
|
|
size_t DefaultKeyLength() const {return m_cipher->DefaultKeyLength();}
|
|
size_t GetValidKeyLength(size_t n) const {return m_cipher->GetValidKeyLength(n);}
|
|
bool IsValidKeyLength(size_t n) const {return m_cipher->IsValidKeyLength(n);}
|
|
|
|
unsigned int OptimalDataAlignment() const {return m_cipher->OptimalDataAlignment();}
|
|
|
|
unsigned int IVSize() const {return BlockSize();}
|
|
virtual IV_Requirement IVRequirement() const =0;
|
|
|
|
void SetCipher(BlockCipher &cipher)
|
|
{
|
|
this->ThrowIfResynchronizable();
|
|
this->m_cipher = &cipher;
|
|
this->ResizeBuffers();
|
|
}
|
|
|
|
void SetCipherWithIV(BlockCipher &cipher, const byte *iv, int feedbackSize = 0)
|
|
{
|
|
this->ThrowIfInvalidIV(iv);
|
|
this->m_cipher = &cipher;
|
|
this->ResizeBuffers();
|
|
this->SetFeedbackSize(feedbackSize);
|
|
if (this->IsResynchronizable())
|
|
this->Resynchronize(iv);
|
|
}
|
|
|
|
protected:
|
|
CipherModeBase() : m_cipher(NULL) {}
|
|
inline unsigned int BlockSize() const {assert(m_register.size() > 0); return (unsigned int)m_register.size();}
|
|
virtual void SetFeedbackSize(unsigned int feedbackSize)
|
|
{
|
|
if (!(feedbackSize == 0 || feedbackSize == BlockSize()))
|
|
throw InvalidArgument("CipherModeBase: feedback size cannot be specified for this cipher mode");
|
|
}
|
|
virtual void ResizeBuffers()
|
|
{
|
|
m_register.New(m_cipher->BlockSize());
|
|
}
|
|
|
|
BlockCipher *m_cipher;
|
|
AlignedSecByteBlock m_register;
|
|
};
|
|
|
|
template <class POLICY_INTERFACE>
|
|
class CRYPTOPP_NO_VTABLE ModePolicyCommonTemplate : public CipherModeBase, public POLICY_INTERFACE
|
|
{
|
|
unsigned int GetAlignment() const {return m_cipher->OptimalDataAlignment();}
|
|
void CipherSetKey(const NameValuePairs ¶ms, const byte *key, size_t length);
|
|
};
|
|
|
|
template <class POLICY_INTERFACE>
|
|
void ModePolicyCommonTemplate<POLICY_INTERFACE>::CipherSetKey(const NameValuePairs ¶ms, const byte *key, size_t length)
|
|
{
|
|
m_cipher->SetKey(key, length, params);
|
|
ResizeBuffers();
|
|
int feedbackSize = params.GetIntValueWithDefault(Name::FeedbackSize(), 0);
|
|
SetFeedbackSize(feedbackSize);
|
|
}
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CFB_ModePolicy : public ModePolicyCommonTemplate<CFB_CipherAbstractPolicy>
|
|
{
|
|
public:
|
|
IV_Requirement IVRequirement() const {return RANDOM_IV;}
|
|
static const char * CRYPTOPP_API StaticAlgorithmName() {return "CFB";}
|
|
|
|
protected:
|
|
unsigned int GetBytesPerIteration() const {return m_feedbackSize;}
|
|
byte * GetRegisterBegin() {return m_register + BlockSize() - m_feedbackSize;}
|
|
bool CanIterate() const {return m_feedbackSize == BlockSize();}
|
|
void Iterate(byte *output, const byte *input, CipherDir dir, size_t iterationCount);
|
|
void TransformRegister();
|
|
void CipherResynchronize(const byte *iv, size_t length);
|
|
void SetFeedbackSize(unsigned int feedbackSize);
|
|
void ResizeBuffers();
|
|
|
|
SecByteBlock m_temp;
|
|
unsigned int m_feedbackSize;
|
|
};
|
|
|
|
inline void CopyOrZero(void *dest, const void *src, size_t s)
|
|
{
|
|
if (src)
|
|
memcpy_s(dest, s, src, s);
|
|
else
|
|
memset(dest, 0, s);
|
|
}
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE OFB_ModePolicy : public ModePolicyCommonTemplate<AdditiveCipherAbstractPolicy>
|
|
{
|
|
public:
|
|
bool CipherIsRandomAccess() const {return false;}
|
|
IV_Requirement IVRequirement() const {return UNIQUE_IV;}
|
|
static const char * CRYPTOPP_API StaticAlgorithmName() {return "OFB";}
|
|
|
|
private:
|
|
unsigned int GetBytesPerIteration() const {return BlockSize();}
|
|
unsigned int GetIterationsToBuffer() const {return m_cipher->OptimalNumberOfParallelBlocks();}
|
|
void WriteKeystream(byte *keystreamBuffer, size_t iterationCount);
|
|
void CipherResynchronize(byte *keystreamBuffer, const byte *iv, size_t length);
|
|
};
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CTR_ModePolicy : public ModePolicyCommonTemplate<AdditiveCipherAbstractPolicy>
|
|
{
|
|
public:
|
|
bool CipherIsRandomAccess() const {return true;}
|
|
IV_Requirement IVRequirement() const {return RANDOM_IV;}
|
|
static const char * CRYPTOPP_API StaticAlgorithmName() {return "CTR";}
|
|
|
|
protected:
|
|
virtual void IncrementCounterBy256();
|
|
|
|
unsigned int GetAlignment() const {return m_cipher->OptimalDataAlignment();}
|
|
unsigned int GetBytesPerIteration() const {return BlockSize();}
|
|
unsigned int GetIterationsToBuffer() const {return m_cipher->OptimalNumberOfParallelBlocks();}
|
|
void WriteKeystream(byte *buffer, size_t iterationCount)
|
|
{OperateKeystream(WRITE_KEYSTREAM, buffer, NULL, iterationCount);}
|
|
bool CanOperateKeystream() const {return true;}
|
|
void OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount);
|
|
void CipherResynchronize(byte *keystreamBuffer, const byte *iv, size_t length);
|
|
void SeekToIteration(lword iterationCount);
|
|
|
|
AlignedSecByteBlock m_counterArray;
|
|
};
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE BlockOrientedCipherModeBase : public CipherModeBase
|
|
{
|
|
public:
|
|
void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶ms);
|
|
unsigned int MandatoryBlockSize() const {return BlockSize();}
|
|
bool IsRandomAccess() const {return false;}
|
|
bool IsSelfInverting() const {return false;}
|
|
bool IsForwardTransformation() const {return m_cipher->IsForwardTransformation();}
|
|
void Resynchronize(const byte *iv, int length=-1) {memcpy_s(m_register, m_register.size(), iv, ThrowIfInvalidIVLength(length));}
|
|
|
|
protected:
|
|
bool RequireAlignedInput() const {return true;}
|
|
void ResizeBuffers()
|
|
{
|
|
CipherModeBase::ResizeBuffers();
|
|
m_buffer.New(BlockSize());
|
|
}
|
|
|
|
SecByteBlock m_buffer;
|
|
};
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE ECB_OneWay : public BlockOrientedCipherModeBase
|
|
{
|
|
public:
|
|
void SetKey(const byte *key, size_t length, const NameValuePairs ¶ms = g_nullNameValuePairs)
|
|
{m_cipher->SetKey(key, length, params); BlockOrientedCipherModeBase::ResizeBuffers();}
|
|
IV_Requirement IVRequirement() const {return NOT_RESYNCHRONIZABLE;}
|
|
unsigned int OptimalBlockSize() const {return BlockSize() * m_cipher->OptimalNumberOfParallelBlocks();}
|
|
void ProcessData(byte *outString, const byte *inString, size_t length);
|
|
static const char * CRYPTOPP_API StaticAlgorithmName() {return "ECB";}
|
|
};
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CBC_ModeBase : public BlockOrientedCipherModeBase
|
|
{
|
|
public:
|
|
IV_Requirement IVRequirement() const {return UNPREDICTABLE_RANDOM_IV;}
|
|
bool RequireAlignedInput() const {return false;}
|
|
unsigned int MinLastBlockSize() const {return 0;}
|
|
static const char * CRYPTOPP_API StaticAlgorithmName() {return "CBC";}
|
|
};
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CBC_Encryption : public CBC_ModeBase
|
|
{
|
|
public:
|
|
void ProcessData(byte *outString, const byte *inString, size_t length);
|
|
};
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CBC_CTS_Encryption : public CBC_Encryption
|
|
{
|
|
public:
|
|
void SetStolenIV(byte *iv) {m_stolenIV = iv;}
|
|
unsigned int MinLastBlockSize() const {return BlockSize()+1;}
|
|
void ProcessLastBlock(byte *outString, const byte *inString, size_t length);
|
|
static const char * CRYPTOPP_API StaticAlgorithmName() {return "CBC/CTS";}
|
|
|
|
protected:
|
|
void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶ms)
|
|
{
|
|
CBC_Encryption::UncheckedSetKey(key, length, params);
|
|
m_stolenIV = params.GetValueWithDefault(Name::StolenIV(), (byte *)NULL);
|
|
}
|
|
|
|
byte *m_stolenIV;
|
|
};
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CBC_Decryption : public CBC_ModeBase
|
|
{
|
|
public:
|
|
void ProcessData(byte *outString, const byte *inString, size_t length);
|
|
|
|
protected:
|
|
void ResizeBuffers()
|
|
{
|
|
BlockOrientedCipherModeBase::ResizeBuffers();
|
|
m_temp.New(BlockSize());
|
|
}
|
|
AlignedSecByteBlock m_temp;
|
|
};
|
|
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CBC_CTS_Decryption : public CBC_Decryption
|
|
{
|
|
public:
|
|
unsigned int MinLastBlockSize() const {return BlockSize()+1;}
|
|
void ProcessLastBlock(byte *outString, const byte *inString, size_t length);
|
|
};
|
|
|
|
//! _
|
|
template <class CIPHER, class BASE>
|
|
class CipherModeFinalTemplate_CipherHolder : protected ObjectHolder<CIPHER>, public AlgorithmImpl<BASE, CipherModeFinalTemplate_CipherHolder<CIPHER, BASE> >
|
|
{
|
|
public:
|
|
CipherModeFinalTemplate_CipherHolder()
|
|
{
|
|
this->m_cipher = &this->m_object;
|
|
this->ResizeBuffers();
|
|
}
|
|
CipherModeFinalTemplate_CipherHolder(const byte *key, size_t length)
|
|
{
|
|
this->m_cipher = &this->m_object;
|
|
this->SetKey(key, length);
|
|
}
|
|
CipherModeFinalTemplate_CipherHolder(const byte *key, size_t length, const byte *iv)
|
|
{
|
|
this->m_cipher = &this->m_object;
|
|
this->SetKey(key, length, MakeParameters(Name::IV(), ConstByteArrayParameter(iv, this->m_cipher->BlockSize())));
|
|
}
|
|
CipherModeFinalTemplate_CipherHolder(const byte *key, size_t length, const byte *iv, int feedbackSize)
|
|
{
|
|
this->m_cipher = &this->m_object;
|
|
this->SetKey(key, length, MakeParameters(Name::IV(), ConstByteArrayParameter(iv, this->m_cipher->BlockSize()))(Name::FeedbackSize(), feedbackSize));
|
|
}
|
|
|
|
static std::string CRYPTOPP_API StaticAlgorithmName()
|
|
{return CIPHER::StaticAlgorithmName() + "/" + BASE::StaticAlgorithmName();}
|
|
};
|
|
|
|
//! _
|
|
template <class BASE>
|
|
class CipherModeFinalTemplate_ExternalCipher : public BASE
|
|
{
|
|
public:
|
|
CipherModeFinalTemplate_ExternalCipher() {}
|
|
CipherModeFinalTemplate_ExternalCipher(BlockCipher &cipher)
|
|
{this->SetCipher(cipher);}
|
|
CipherModeFinalTemplate_ExternalCipher(BlockCipher &cipher, const byte *iv, int feedbackSize = 0)
|
|
{this->SetCipherWithIV(cipher, iv, feedbackSize);}
|
|
|
|
std::string AlgorithmName() const
|
|
{return (this->m_cipher ? this->m_cipher->AlgorithmName() + "/" : std::string("")) + BASE::StaticAlgorithmName();}
|
|
};
|
|
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS CFB_CipherTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> >;
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS CFB_EncryptionTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> >;
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS CFB_DecryptionTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> >;
|
|
|
|
//! CFB mode
|
|
template <class CIPHER>
|
|
struct CFB_Mode : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Encryption, ConcretePolicyHolder<Empty, CFB_EncryptionTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> > > > Encryption;
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Encryption, ConcretePolicyHolder<Empty, CFB_DecryptionTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> > > > Decryption;
|
|
};
|
|
|
|
//! CFB mode, external cipher
|
|
struct CFB_Mode_ExternalCipher : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_ExternalCipher<ConcretePolicyHolder<Empty, CFB_EncryptionTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> > > > Encryption;
|
|
typedef CipherModeFinalTemplate_ExternalCipher<ConcretePolicyHolder<Empty, CFB_DecryptionTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> > > > Decryption;
|
|
};
|
|
|
|
//! CFB mode FIPS variant, requiring full block plaintext according to FIPS 800-38A
|
|
template <class CIPHER>
|
|
struct CFB_FIPS_Mode : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Encryption, ConcretePolicyHolder<Empty, CFB_RequireFullDataBlocks<CFB_EncryptionTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> > > > > Encryption;
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Encryption, ConcretePolicyHolder<Empty, CFB_RequireFullDataBlocks<CFB_DecryptionTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> > > > > Decryption;
|
|
};
|
|
|
|
//! CFB mode FIPS variant, requiring full block plaintext according to FIPS 800-38A, external cipher
|
|
struct CFB_FIPS_Mode_ExternalCipher : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_ExternalCipher<ConcretePolicyHolder<Empty, CFB_RequireFullDataBlocks<CFB_EncryptionTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> > > > > Encryption;
|
|
typedef CipherModeFinalTemplate_ExternalCipher<ConcretePolicyHolder<Empty, CFB_RequireFullDataBlocks<CFB_DecryptionTemplate<AbstractPolicyHolder<CFB_CipherAbstractPolicy, CFB_ModePolicy> > > > > Decryption;
|
|
};
|
|
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS AdditiveCipherTemplate<AbstractPolicyHolder<AdditiveCipherAbstractPolicy, OFB_ModePolicy> >;
|
|
|
|
//! OFB mode
|
|
template <class CIPHER>
|
|
struct OFB_Mode : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Encryption, ConcretePolicyHolder<Empty, AdditiveCipherTemplate<AbstractPolicyHolder<AdditiveCipherAbstractPolicy, OFB_ModePolicy> > > > Encryption;
|
|
typedef Encryption Decryption;
|
|
};
|
|
|
|
//! OFB mode, external cipher
|
|
struct OFB_Mode_ExternalCipher : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_ExternalCipher<ConcretePolicyHolder<Empty, AdditiveCipherTemplate<AbstractPolicyHolder<AdditiveCipherAbstractPolicy, OFB_ModePolicy> > > > Encryption;
|
|
typedef Encryption Decryption;
|
|
};
|
|
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS AdditiveCipherTemplate<AbstractPolicyHolder<AdditiveCipherAbstractPolicy, CTR_ModePolicy> >;
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS CipherModeFinalTemplate_ExternalCipher<ConcretePolicyHolder<Empty, AdditiveCipherTemplate<AbstractPolicyHolder<AdditiveCipherAbstractPolicy, CTR_ModePolicy> > > >;
|
|
|
|
//! CTR mode
|
|
template <class CIPHER>
|
|
struct CTR_Mode : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Encryption, ConcretePolicyHolder<Empty, AdditiveCipherTemplate<AbstractPolicyHolder<AdditiveCipherAbstractPolicy, CTR_ModePolicy> > > > Encryption;
|
|
typedef Encryption Decryption;
|
|
};
|
|
|
|
//! CTR mode, external cipher
|
|
struct CTR_Mode_ExternalCipher : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_ExternalCipher<ConcretePolicyHolder<Empty, AdditiveCipherTemplate<AbstractPolicyHolder<AdditiveCipherAbstractPolicy, CTR_ModePolicy> > > > Encryption;
|
|
typedef Encryption Decryption;
|
|
};
|
|
|
|
//! ECB mode
|
|
template <class CIPHER>
|
|
struct ECB_Mode : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Encryption, ECB_OneWay> Encryption;
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Decryption, ECB_OneWay> Decryption;
|
|
};
|
|
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS CipherModeFinalTemplate_ExternalCipher<ECB_OneWay>;
|
|
|
|
//! ECB mode, external cipher
|
|
struct ECB_Mode_ExternalCipher : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_ExternalCipher<ECB_OneWay> Encryption;
|
|
typedef Encryption Decryption;
|
|
};
|
|
|
|
//! CBC mode
|
|
template <class CIPHER>
|
|
struct CBC_Mode : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Encryption, CBC_Encryption> Encryption;
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Decryption, CBC_Decryption> Decryption;
|
|
};
|
|
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS CipherModeFinalTemplate_ExternalCipher<CBC_Encryption>;
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS CipherModeFinalTemplate_ExternalCipher<CBC_Decryption>;
|
|
|
|
//! CBC mode, external cipher
|
|
struct CBC_Mode_ExternalCipher : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_ExternalCipher<CBC_Encryption> Encryption;
|
|
typedef CipherModeFinalTemplate_ExternalCipher<CBC_Decryption> Decryption;
|
|
};
|
|
|
|
//! CBC mode with ciphertext stealing
|
|
template <class CIPHER>
|
|
struct CBC_CTS_Mode : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Encryption, CBC_CTS_Encryption> Encryption;
|
|
typedef CipherModeFinalTemplate_CipherHolder<CPP_TYPENAME CIPHER::Decryption, CBC_CTS_Decryption> Decryption;
|
|
};
|
|
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS CipherModeFinalTemplate_ExternalCipher<CBC_CTS_Encryption>;
|
|
CRYPTOPP_DLL_TEMPLATE_CLASS CipherModeFinalTemplate_ExternalCipher<CBC_CTS_Decryption>;
|
|
|
|
//! CBC mode with ciphertext stealing, external cipher
|
|
struct CBC_CTS_Mode_ExternalCipher : public CipherModeDocumentation
|
|
{
|
|
typedef CipherModeFinalTemplate_ExternalCipher<CBC_CTS_Encryption> Encryption;
|
|
typedef CipherModeFinalTemplate_ExternalCipher<CBC_CTS_Decryption> Decryption;
|
|
};
|
|
|
|
#ifdef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY
|
|
typedef CFB_Mode_ExternalCipher::Encryption CFBEncryption;
|
|
typedef CFB_Mode_ExternalCipher::Decryption CFBDecryption;
|
|
typedef OFB_Mode_ExternalCipher::Encryption OFB;
|
|
typedef CTR_Mode_ExternalCipher::Encryption CounterMode;
|
|
#endif
|
|
|
|
NAMESPACE_END
|
|
|
|
#endif
|