1#ifndef BASE_HASH_H
2#define BASE_HASH_H
3
4#include <cstddef> // size_t
5
6enum
7{
8 SHA256_DIGEST_LENGTH = 256 / 8,
9 SHA256_MAXSTRSIZE = 2 * SHA256_DIGEST_LENGTH + 1,
10 MD5_DIGEST_LENGTH = 128 / 8,
11 MD5_MAXSTRSIZE = 2 * MD5_DIGEST_LENGTH + 1,
12};
13
14struct SHA256_DIGEST
15{
16 unsigned char data[SHA256_DIGEST_LENGTH];
17};
18
19struct MD5_DIGEST
20{
21 unsigned char data[MD5_DIGEST_LENGTH];
22};
23
24SHA256_DIGEST sha256(const void *message, size_t message_len);
25void sha256_str(SHA256_DIGEST digest, char *str, size_t max_len);
26int sha256_from_str(SHA256_DIGEST *out, const char *str);
27int sha256_comp(SHA256_DIGEST digest1, SHA256_DIGEST digest2);
28
29MD5_DIGEST md5(const void *message, size_t message_len);
30void md5_str(MD5_DIGEST digest, char *str, size_t max_len);
31int md5_from_str(MD5_DIGEST *out, const char *str);
32int md5_comp(MD5_DIGEST digest1, MD5_DIGEST digest2);
33
34extern const SHA256_DIGEST SHA256_ZEROED;
35
36inline bool operator==(const SHA256_DIGEST &that, const SHA256_DIGEST &other)
37{
38 return sha256_comp(digest1: that, digest2: other) == 0;
39}
40inline bool operator!=(const SHA256_DIGEST &that, const SHA256_DIGEST &other)
41{
42 return !(that == other);
43}
44inline bool operator==(const MD5_DIGEST &that, const MD5_DIGEST &other)
45{
46 return md5_comp(digest1: that, digest2: other) == 0;
47}
48inline bool operator!=(const MD5_DIGEST &that, const MD5_DIGEST &other)
49{
50 return !(that == other);
51}
52
53#endif // BASE_HASH_H
54