blob: b08022f1fc1c53ef7c94136a8d77227cfe8e01a4 (
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
|
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* message_digest.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: charles <me@cacharle.xyz> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/08/01 15:03:39 by charles #+# #+# */
/* Updated: 2020/08/01 19:25:07 by charles ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_ssl.h"
char *message_digest(t_message_digest_param *param)
{
size_t i;
uint64_t padding_size;
uint8_t *message;
padding_size = (64 - (param->size + 8) % 64) + 8;
message = malloc(param->size + padding_size);
if (message == NULL)
return (NULL);
ft_memcpy(message, param->message, param->size);
ft_memset(message + param->size, 0x0, padding_size);
message[param->size] |= 1 << 7;
*((uint64_t*)(message + param->size + padding_size - sizeof(uint64_t))) =
(uint64_t)param->size * 8;
param->size += padding_size;
i = 0;
while (i < param->size)
{
param->compression_state = param->compression_func(param->compression_state, message + i);
if (param->compression_state == NULL)
{
free(message);
return (NULL);
}
i += param->chunk_size;
}
return (bytes_to_str(param->compression_state, param->compression_state_size));
}
|
