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/*
Copyright 2012 to 2017 TeamWin
This file is part of TWRP/TeamWin Recovery Project.
TWRP is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
TWRP 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with TWRP. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __TWRPSHA_H
#define __TWRPSHA_H
#include <openssl/sha.h>
#include "twrpDigest.hpp"
class twrpSHA256: public twrpDigest {
public:
twrpSHA256(); // Initialize the SHA256 digest for streaming activities only
void init(); // Initialize the SHA256 digest algorithm
protected:
void update(const unsigned char* stream, size_t len); // Update the SHA256 digest stream
void finalize(); // Finalize the SHA256 digest for computation
std::string return_digest_string(); // Return the digest string computed to the callee
private:
uint8_t sha256_store[SHA256_DIGEST_LENGTH]; // Initialize the SHA256 digest array that holds the computation
SHA256_CTX sha256_ctx; // Initialize the SHA256 control structure
};
class twrpSHA512: public twrpDigest {
public:
twrpSHA512(); // Initialize the SHA512 digest for streaming activities only
void init(); // Initialize the SHA512 digest algorithm
protected:
void update(const unsigned char* stream, size_t len); // Update the SHA512 digest stream
void finalize(); // Finalize the SHA512 digest for computation
std::string return_digest_string(); // Return the digest string computed to the callee
private:
uint8_t sha512_store[SHA512_DIGEST_LENGTH]; // Initialize the SHA512 digest array that holds the computation
SHA512_CTX sha512_ctx; // Initialize the SHA512 control structure
};
#endif //__TWRPSHA_H
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