libcryfs/crypto/symmetric/Cipher.h
2015-10-28 01:49:12 +01:00

34 lines
909 B
C++

#pragma once
#ifndef MESSMER_CPPUTILS_CRYPTO_SYMMETRIC_CIPHER_H_
#define MESSMER_CPPUTILS_CRYPTO_SYMMETRIC_CIPHER_H_
#include <boost/concept_check.hpp>
#include <cstdint>
#include "../../data/Data.h"
#include "../../random/Random.h"
using std::string;
namespace cpputils {
template<class X>
struct CipherConcept {
public:
BOOST_CONCEPT_USAGE(CipherConcept) {
same_type(UINT32_C(0), X::ciphertextSize(UINT32_C(5)));
same_type(UINT32_C(0), X::plaintextSize(UINT32_C(5)));
typename X::EncryptionKey key = X::CreateKey(Random::OSRandom());
same_type(Data(0), X::encrypt((uint8_t*)nullptr, UINT32_C(0), key));
same_type(boost::optional<Data>(Data(0)), X::decrypt((uint8_t*)nullptr, UINT32_C(0), key));
string name = X::NAME;
}
private:
// Type deduction will fail unless the arguments have the same type.
template <typename T> void same_type(T const&, T const&);
};
}
#endif