33 lines
860 B
C
33 lines
860 B
C
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#pragma once
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#ifndef MESSMER_BLOCKSTORE_IMPLEMENTATIONS_ENCRYPTED_CIPHERS_CIPHER_H_
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#define MESSMER_BLOCKSTORE_IMPLEMENTATIONS_ENCRYPTED_CIPHERS_CIPHER_H_
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#include <boost/concept_check.hpp>
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#include <cstdint>
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namespace blockstore {
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namespace encrypted {
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template<class X>
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struct CipherConcept {
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public:
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BOOST_CONCEPT_USAGE(CipherConcept) {
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same_type(UINT32_C(0), X::ciphertextSize(UINT32_C(5)));
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same_type(UINT32_C(0), X::plaintextSize(UINT32_C(5)));
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typename X::EncryptionKey key = X::EncryptionKey::CreateRandom();
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same_type(Data(0), X::encrypt((byte*)nullptr, UINT32_C(0), key));
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same_type(boost::optional<Data>(Data(0)), X::decrypt((byte*)nullptr, UINT32_C(0), key));
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}
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private:
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// Type deduction will fail unless the arguments have the same type.
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template <typename T> void same_type(T const&, T const&);
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};
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}
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}
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#endif
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