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hash.h
1/*NB_REVISION*/
2
3/*NB_COPYRIGHT*/
4
5#ifndef __HASH_H
6#define __HASH_H
7
8#include <stdio.h>
9
13#define MD5_HASH_LENGTH (16)
14#define SHA1_HASH_LENGTH (20)
15#define SHA2_HASH_LENGTH (32)
16#define TLS1_HASH_LENGTH MD5_HASH_LENGTH + SHA1_HASH_LENGTH
17#define TLS1_2_HASH_LENGTH SHA1_HASH_LENGTH + SHA2_HASH_LENGTH
18#define MAX_HASH_LENGTH SHA2_HASH_LENGTH
19#define MAX_COMBINED_HASH_LENGTH TLS1_HASH_LENGTH
20
21struct __vtable_HASH_CTX_t;
22
23struct HASH_CTX
24{
25 __vtable_HASH_CTX_t *__vtable;
26
27 void Init();
28 void Update(const unsigned char *data, unsigned int len);
29 void Final(unsigned char *digest);
30 int GetDigestLen() const;
31 int GetOIDLen() const;
32 const unsigned char *GetOID() const;
33};
34
35typedef void (HASH_CTX::*HashInitFn)();
36typedef void (HASH_CTX::*HashUpdateFn)(const unsigned char *, unsigned int);
37typedef void (HASH_CTX::*HashFinalFn)(unsigned char *);
38typedef int (HASH_CTX::*HashDigestLenFn)() const;
39typedef int (HASH_CTX::*HashOIDLenFn)() const;
40typedef const unsigned char *(HASH_CTX::*HashOIDFn)() const;
41
42struct __vtable_HASH_CTX_t
43{
44 HashInitFn _Init;
45 HashUpdateFn _Update;
46 HashFinalFn _Final;
47 HashDigestLenFn _GetDigestLen;
48 HashOIDLenFn _GetOIDLen;
49 HashOIDFn _GetOID;
50};
51
52inline void HASH_CTX::Init()
53{
54 (this->*(this->__vtable->_Init))();
55}
56inline void HASH_CTX::Update(const unsigned char *data, unsigned int len)
57{
58 (this->*(this->__vtable->_Update))(data, len);
59}
60
61inline void HASH_CTX::Final(unsigned char *digest)
62{
63 (this->*(this->__vtable->_Final))(digest);
64}
65inline int HASH_CTX::GetDigestLen() const
66{
67 return (this->*(this->__vtable->_GetDigestLen))();
68}
69inline int HASH_CTX::GetOIDLen() const
70{
71 return (this->*(this->__vtable->_GetOIDLen))();
72}
73inline const unsigned char *HASH_CTX::GetOID() const
74{
75 return (this->*(this->__vtable->_GetOID))();
76}
77
78#endif /* ----- #ifndef __HASH_H ----- */