Patrick Fallberg
1040fbebc5
Cleaned up the AES driver and removed some cppcheck isues in the process.
43 lines
881 B
C++
43 lines
881 B
C++
// This code is taken from https://github.com/Cathedrow/Cryptosuite (Peter Knight) and is lightly modified for MySensors use
|
|
#ifndef Sha256_h
|
|
#define Sha256_h
|
|
#if !DOXYGEN
|
|
#include <inttypes.h>
|
|
|
|
#define HASH_LENGTH 32
|
|
#define BLOCK_LENGTH 64
|
|
|
|
union _buffer {
|
|
uint8_t b[BLOCK_LENGTH];
|
|
uint32_t w[BLOCK_LENGTH/4];
|
|
};
|
|
union _state {
|
|
uint8_t b[HASH_LENGTH];
|
|
uint32_t w[HASH_LENGTH/4];
|
|
};
|
|
|
|
class Sha256Class
|
|
{
|
|
public:
|
|
Sha256Class(); // Constructor
|
|
void init(void);
|
|
void initHmac(const uint8_t* secret, int secretLength);
|
|
uint8_t* result(void);
|
|
uint8_t* resultHmac(void);
|
|
void write(uint8_t);
|
|
private:
|
|
void pad();
|
|
void addUncounted(uint8_t data);
|
|
void hashBlock();
|
|
uint32_t ror32(uint32_t number, uint8_t bits);
|
|
_buffer buffer;
|
|
uint8_t bufferOffset;
|
|
_state state;
|
|
uint32_t byteCount;
|
|
uint8_t keyBuffer[BLOCK_LENGTH];
|
|
uint8_t innerHash[HASH_LENGTH];
|
|
};
|
|
|
|
#endif
|
|
#endif
|