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// Copyright (c) 2012-2014 Konstantin Isakov <ikm@zbackup.org> and ZBackup contributors, see CONTRIBUTORS
// Part of ZBackup. Licensed under GNU GPLv2 or later + OpenSSL, see LICENSE
#ifndef SHA256_HH_INCLUDED
#define SHA256_HH_INCLUDED
#include <string>
#include <openssl/sha.h>
#include <stddef.h>
using std::string;
/// A simple wrapper over openssl
class Sha256
{
SHA256_CTX ctx;
public:
enum
{
// Number of bytes a digest has
Size = SHA256_DIGEST_LENGTH
};
Sha256();
/// Adds more data
void add( void const * data, size_t size );
/// Result should point at at least Size bytes
void finish( void * result );
/// Returns result as a string blob
string finish();
};
#endif
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