diff options
| author | watcherhd <watcherhd@e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb> | 2011-04-21 14:14:52 +0000 |
|---|---|---|
| committer | watcherhd <watcherhd@e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb> | 2011-04-21 14:14:52 +0000 |
| commit | cb4a46e7fbe62d788e66ed6121c717a2d22a4d7c (patch) | |
| tree | 30df260fdc5a1b5a7049c2f8cac8b7ef17513d6d /cryptopp/crypto/cbcmac.h | |
| parent | 19b6f534d2e784a1e120bf52c4aa07004798f473 (diff) | |
svn.miranda.im is moving to a new home!
git-svn-id: http://miranda-plugins.googlecode.com/svn/trunk@7 e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb
Diffstat (limited to 'cryptopp/crypto/cbcmac.h')
| -rw-r--r-- | cryptopp/crypto/cbcmac.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/cryptopp/crypto/cbcmac.h b/cryptopp/crypto/cbcmac.h new file mode 100644 index 0000000..9e944c6 --- /dev/null +++ b/cryptopp/crypto/cbcmac.h @@ -0,0 +1,51 @@ +#ifndef CRYPTOPP_CBCMAC_H
+#define CRYPTOPP_CBCMAC_H
+
+#include "seckey.h"
+#include "secblock.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! _
+class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CBC_MAC_Base : public MessageAuthenticationCode
+{
+public:
+ CBC_MAC_Base() {}
+
+ void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶ms);
+ void Update(const byte *input, size_t length);
+ void TruncatedFinal(byte *mac, size_t size);
+ unsigned int DigestSize() const {return const_cast<CBC_MAC_Base*>(this)->AccessCipher().BlockSize();}
+
+protected:
+ virtual BlockCipher & AccessCipher() =0;
+
+private:
+ void ProcessBuf();
+ SecByteBlock m_reg;
+ unsigned int m_counter;
+};
+
+//! <a href="http://www.weidai.com/scan-mirror/mac.html#CBC-MAC">CBC-MAC</a>
+/*! Compatible with FIPS 113. T should be a class derived from BlockCipherDocumentation.
+ Secure only for fixed length messages. For variable length
+ messages use DMAC.
+*/
+template <class T>
+class CBC_MAC : public MessageAuthenticationCodeImpl<CBC_MAC_Base, CBC_MAC<T> >, public SameKeyLengthAs<T>
+{
+public:
+ CBC_MAC() {}
+ CBC_MAC(const byte *key, size_t length=SameKeyLengthAs<T>::DEFAULT_KEYLENGTH)
+ {this->SetKey(key, length);}
+
+ static std::string StaticAlgorithmName() {return std::string("CBC-MAC(") + T::StaticAlgorithmName() + ")";}
+
+private:
+ BlockCipher & AccessCipher() {return m_cipher;}
+ typename T::Encryption m_cipher;
+};
+
+NAMESPACE_END
+
+#endif
|