#ifndef ENCFS_MAC_H #define ENCFS_MAC_H #include #include "base/Registry.h" #include "base/types.h" #include "cipher/CipherKey.h" namespace encfs { static const char NAME_SHA1_HMAC[] = "SHA-1/HMAC"; // MAC provides keyed MessageAuthenticationCode algorithms, eg HMAC. class MAC { public: DECLARE_REGISTERABLE_TYPE(MAC); struct Properties { int blockSize; // Block length of hash function. std::string hashFunction; std::string mode; std::string library; std::string toString() const { return hashFunction + "/" + mode; } }; MAC(); virtual ~MAC(); virtual int outputSize() const =0; virtual bool setKey(const CipherKey &key) =0; // Init must be called before any calls to update. virtual void init() =0; virtual bool update(const byte *in, int length) =0; virtual bool write(byte *out) =0; }; } // namespace encfs #endif // ENCFS_MAC_H