changes for 5.6:

    - added AuthenticatedSymmetricCipher interface class and Filter wrappers
    - added CCM, GCM (with SSE2 assembly), CMAC, and SEED
    - improved AES speed on x86 and x64
    - removed WORD64_AVAILABLE; compiler 64-bit int support is now required

1 files changed, 49 insertions, 0 deletions

diff --git a/authenc.h b/authenc.h
new file mode 100644
index 00000000..afc2791d
--- /dev/null
+++ b/authenc.h
@@ -0,0 +1,49 @@
+#ifndef CRYPTOPP_AUTHENC_H

+#define CRYPTOPP_AUTHENC_H

+

+#include "cryptlib.h"

+#include "secblock.h"

+

+NAMESPACE_BEGIN(CryptoPP)

+

+//! .

+class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE AuthenticatedSymmetricCipherBase : public AuthenticatedSymmetricCipher

+{

+public:

+	AuthenticatedSymmetricCipherBase() : m_state(State_Start) {}

+

+	bool IsRandomAccess() const {return false;}

+	bool IsSelfInverting() const {return true;}

+	void UncheckedSetKey(const byte *,unsigned int,const CryptoPP::NameValuePairs &) {assert(false);}

+

+	void SetKey(const byte *userKey, size_t keylength, const NameValuePairs &params);

+	void Restart() {if (m_state > State_KeySet) m_state = State_KeySet;}

+	void Resynchronize(const byte *iv, int length=-1);

+	void Update(const byte *input, size_t length);

+	void ProcessData(byte *outString, const byte *inString, size_t length);

+	void TruncatedFinal(byte *mac, size_t macSize);

+

+protected:

+	void AuthenticateData(const byte *data, size_t len);

+	const SymmetricCipher & GetSymmetricCipher() const {return const_cast<AuthenticatedSymmetricCipherBase *>(this)->AccessSymmetricCipher();};

+

+	virtual SymmetricCipher & AccessSymmetricCipher() =0;

+	virtual bool AuthenticationIsOnPlaintext() const =0;

+	virtual unsigned int AuthenticationBlockSize() const =0;

+	virtual void SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs &params) =0;

+	virtual void Resync(const byte *iv, size_t len) =0;

+	virtual size_t AuthenticateBlocks(const byte *data, size_t len) =0;

+	virtual void AuthenticateLastHeaderBlock() =0;

+	virtual void AuthenticateLastConfidentialBlock() =0;

+	virtual void AuthenticateLastFooterBlock(byte *mac, size_t macSize) =0;

+

+	enum State {State_Start, State_KeySet, State_IVSet, State_AuthUntransformed, State_AuthTransformed, State_AuthFooter};

+	State m_state;

+	unsigned int m_bufferedDataLength;

+	lword m_totalHeaderLength, m_totalMessageLength, m_totalFooterLength;

+	AlignedSecByteBlock m_buffer;

+};

+

+NAMESPACE_END

+

+#endif