Suyu/mbedtls
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/mbedtls.git synced 2025-12-24 00:06:32 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

- Made function resilient to endianness differences.

Browse source
This commit is contained in:
Paul Bakker 2011-03-13 16:57:25 +00:00
parent 4cce2bbd5a
commit b3dcbc18f6
2 changed files with 35 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

37
tests/suites/helpers.function
View file

@ -1,3 +1,33 @@
#ifdef _MSC_VER
#include <basetsd.h>
typedef UINT32 uint32_t;
#else
#include <inttypes.h>
#endif
/*
* 32-bit integer manipulation macros (big endian)
*/
#ifndef GET_ULONG_BE
#define GET_ULONG_BE(n,b,i) \
{ \
(n) = ( (unsigned long) (b)[(i) ] << 24 ) \
| ( (unsigned long) (b)[(i) + 1] << 16 ) \
| ( (unsigned long) (b)[(i) + 2] << 8 ) \
| ( (unsigned long) (b)[(i) + 3] ); \
}
#endif
#ifndef PUT_ULONG_BE
#define PUT_ULONG_BE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
}
#endif
int unhexify(unsigned char *obuf, const char *ibuf)
{
unsigned char c, c2;
@ -138,11 +168,12 @@ static int rnd_buffer_rand( void *rng_state )
* Info structure for the pseudo random function
*
* Key should be set at the start to a test-unique value.
* Do not forget endianness!
* State( v0, v1 ) should be set to zero.
*/
typedef struct
{
unsigned char key[16];
uint32_t key[16];
uint32_t v0, v1;
} rnd_pseudo_info;
@ -157,12 +188,12 @@ typedef struct
static int rnd_pseudo_rand( void *rng_state )
{
rnd_pseudo_info *info = (rnd_pseudo_info *) rng_state;
uint32_t i, *k, sum, delta=0x9E3779B9;
uint32_t i, *k, sum = 0, delta=0x9E3779B9;
if( rng_state == NULL )
return( rand() );
k = (uint32_t *) info->key;
k = info->key;
for( i = 0; i < 32; i++ )
{
info->v0 += (((info->v1 << 4) ^ (info->v1 >> 5)) + info->v1) ^ (sum + k[sum & 3]);