blob: 1a6bcd6a052576664bcf273184c6987292b1ec95 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/*
* HMAC
* (C) 1999-2007,2014 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_HMAC_H_
#define BOTAN_HMAC_H_
#include <botan/mac.h>
#include <botan/hash.h>
namespace Botan {
/**
* HMAC
*/
class BOTAN_PUBLIC_API(2,0) HMAC final : public MessageAuthenticationCode
{
public:
void clear() override;
std::string name() const override;
MessageAuthenticationCode* clone() const override;
size_t output_length() const override;
Key_Length_Specification key_spec() const override;
/**
* @param hash the hash to use for HMACing
*/
explicit HMAC(HashFunction* hash);
HMAC(const HMAC&) = delete;
HMAC& operator=(const HMAC&) = delete;
private:
void add_data(const uint8_t[], size_t) override;
void final_result(uint8_t[]) override;
void key_schedule(const uint8_t[], size_t) override;
std::unique_ptr<HashFunction> m_hash;
secure_vector<uint8_t> m_ikey, m_okey;
size_t m_hash_output_length;
size_t m_hash_block_size;
};
}
#endif
|
