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BLAKE2s.h
1 /*
2  * Copyright (C) 2015 Southern Storm Software, Pty Ltd.
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22 
23 #ifndef CRYPTO_BLAKE2S_H
24 #define CRYPTO_BLAKE2S_H
25 
26 #include "Hash.h"
27 
28 class BLAKE2s : public Hash
29 {
30 public:
31  BLAKE2s();
32  virtual ~BLAKE2s();
33 
34  size_t hashSize() const;
35  size_t blockSize() const;
36 
37  void reset();
38  void reset(uint8_t outputLength);
39  void reset(const void *key, size_t keyLen, uint8_t outputLength = 32);
40 
41  void update(const void *data, size_t len);
42  void finalize(void *hash, size_t len);
43 
44  void clear();
45 
46  void resetHMAC(const void *key, size_t keyLen);
47  void finalizeHMAC(const void *key, size_t keyLen, void *hash, size_t hashLen);
48 
49 private:
50  struct {
51  uint32_t h[8];
52  uint32_t m[16];
53  uint64_t length;
54  uint8_t chunkSize;
55  } state;
56 
57  void processChunk(uint32_t f0);
58 };
59 
60 #endif
virtual ~BLAKE2s()
Destroys this BLAKE2s hash object after clearing sensitive information.
Definition: BLAKE2s.cpp:84
size_t hashSize() const
Size of the hash result from finalize().
Definition: BLAKE2s.cpp:89
void clear()
Clears the hash state, removing all sensitive data, and then resets the hash ready for a new hashing ...
Definition: BLAKE2s.cpp:227
void reset()
Resets the hash ready for a new hashing process.
Definition: BLAKE2s.cpp:109
size_t blockSize() const
Size of the internal block used by the hash algorithm.
Definition: BLAKE2s.cpp:94
Abstract base class for cryptographic hash algorithms.
Definition: Hash.h:29
void update(const void *data, size_t len)
Updates the hash with more data.
Definition: BLAKE2s.cpp:189
BLAKE2s hash algorithm.
Definition: BLAKE2s.h:28
void resetHMAC(const void *key, size_t keyLen)
Resets the hash ready for a new HMAC hashing process.
Definition: BLAKE2s.cpp:233
void finalize(void *hash, size_t len)
Finalizes the hashing process and returns the hash.
Definition: BLAKE2s.cpp:211
void finalizeHMAC(const void *key, size_t keyLen, void *hash, size_t hashLen)
Finalizes the HMAC hashing process and returns the hash.
Definition: BLAKE2s.cpp:240
BLAKE2s()
Constructs a BLAKE2s hash object.
Definition: BLAKE2s.cpp:75