RetroShare/libretroshare/src/crypto/hashstream.h
2018-05-28 22:03:39 +02:00

55 lines
2.3 KiB
C++

/*******************************************************************************
* libretroshare/src/crypto: hashstream.h *
* *
* libretroshare: retroshare core library *
* *
* Copyright 2018 by Retroshare Team <retroshare.team@gmail.com> *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this program. If not, see <https://www.gnu.org/licenses/>. *
* *
*******************************************************************************/
#pragma once
#include <openssl/evp.h>
#include <util/rsdir.h>
namespace librs
{
namespace crypto
{
class HashStream
{
public:
enum HashType { UNKNOWN = 0x00,
SHA1 = 0x01
};
HashStream(HashType t);
~HashStream();
Sha1CheckSum hash() ;
template<class T> friend HashStream& operator<<(HashStream& u, const T&) ;
template<uint32_t ID_SIZE_IN_BYTES,bool UPPER_CASE,uint32_t UNIQUE_IDENTIFIER>
friend HashStream& operator<<(HashStream& u,const t_RsGenericIdType<ID_SIZE_IN_BYTES,UPPER_CASE,UNIQUE_IDENTIFIER>& r)
{
EVP_DigestUpdate(u.mdctx,r.toByteArray(),ID_SIZE_IN_BYTES);
return u;
}
private:
EVP_MD_CTX *mdctx ;
};
}
}