diff options
Diffstat (limited to 'CryptoPP/ccm.h')
| -rw-r--r-- | CryptoPP/ccm.h | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/CryptoPP/ccm.h b/CryptoPP/ccm.h deleted file mode 100644 index b1e5f00b9..000000000 --- a/CryptoPP/ccm.h +++ /dev/null @@ -1,101 +0,0 @@ -#ifndef CRYPTOPP_CCM_H -#define CRYPTOPP_CCM_H - -#include "authenc.h" -#include "modes.h" - -NAMESPACE_BEGIN(CryptoPP) - -//! . -class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CCM_Base : public AuthenticatedSymmetricCipherBase -{ -public: - CCM_Base() - : m_digestSize(0), m_L(0) {} - - // AuthenticatedSymmetricCipher - std::string AlgorithmName() const - {return GetBlockCipher().AlgorithmName() + std::string("/CCM");} - size_t MinKeyLength() const - {return GetBlockCipher().MinKeyLength();} - size_t MaxKeyLength() const - {return GetBlockCipher().MaxKeyLength();} - size_t DefaultKeyLength() const - {return GetBlockCipher().DefaultKeyLength();} - size_t GetValidKeyLength(size_t n) const - {return GetBlockCipher().GetValidKeyLength(n);} - bool IsValidKeyLength(size_t n) const - {return GetBlockCipher().IsValidKeyLength(n);} - unsigned int OptimalDataAlignment() const - {return GetBlockCipher().OptimalDataAlignment();} - IV_Requirement IVRequirement() const - {return UNIQUE_IV;} - unsigned int IVSize() const - {return 8;} - unsigned int MinIVLength() const - {return 7;} - unsigned int MaxIVLength() const - {return 13;} - unsigned int DigestSize() const - {return m_digestSize;} - lword MaxHeaderLength() const - {return W64LIT(0)-1;} - lword MaxMessageLength() const - {return m_L<8 ? (W64LIT(1)<<(8*m_L))-1 : W64LIT(0)-1;} - bool NeedsPrespecifiedDataLengths() const - {return true;} - void UncheckedSpecifyDataLengths(lword headerLength, lword messageLength, lword footerLength); - -protected: - // AuthenticatedSymmetricCipherBase - bool AuthenticationIsOnPlaintext() const - {return true;} - unsigned int AuthenticationBlockSize() const - {return GetBlockCipher().BlockSize();} - void SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs ¶ms); - void Resync(const byte *iv, size_t len); - size_t AuthenticateBlocks(const byte *data, size_t len); - void AuthenticateLastHeaderBlock(); - void AuthenticateLastConfidentialBlock(); - void AuthenticateLastFooterBlock(byte *mac, size_t macSize); - SymmetricCipher & AccessSymmetricCipher() {return m_ctr;} - - virtual BlockCipher & AccessBlockCipher() =0; - virtual int DefaultDigestSize() const =0; - - const BlockCipher & GetBlockCipher() const {return const_cast<CCM_Base *>(this)->AccessBlockCipher();}; - byte *CBC_Buffer() {return m_buffer+REQUIRED_BLOCKSIZE;} - - enum {REQUIRED_BLOCKSIZE = 16}; - int m_digestSize, m_L; - word64 m_messageLength, m_aadLength; - CTR_Mode_ExternalCipher::Encryption m_ctr; -}; - -//! . -template <class T_BlockCipher, int T_DefaultDigestSize, bool T_IsEncryption> -class CCM_Final : public CCM_Base -{ -public: - static std::string StaticAlgorithmName() - {return T_BlockCipher::StaticAlgorithmName() + std::string("/CCM");} - bool IsForwardTransformation() const - {return T_IsEncryption;} - -private: - BlockCipher & AccessBlockCipher() {return m_cipher;} - int DefaultDigestSize() const {return T_DefaultDigestSize;} - typename T_BlockCipher::Encryption m_cipher; -}; - -/// <a href="http://www.cryptolounge.org/wiki/CCM">CCM</a> -template <class T_BlockCipher, int T_DefaultDigestSize = 16> -struct CCM : public AuthenticatedSymmetricCipherDocumentation -{ - typedef CCM_Final<T_BlockCipher, T_DefaultDigestSize, true> Encryption; - typedef CCM_Final<T_BlockCipher, T_DefaultDigestSize, false> Decryption; -}; - -NAMESPACE_END - -#endif |