apps/ffmpeg-rockchip
1
0
Fork 0
mirror of https://github.com/nyanmisaka/ffmpeg-rockchip.git synced 2025-10-07 09:41:32 +08:00
Code Issues Packages Projects Releases Wiki Activity

avutil/random_seed: use bcrypt instead of the old wincrypt API

Browse Source 
Remove the wincrypt API calls since we don't support XP anymore and bcrypt is
available since Vista, even on Windows Store builds.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Steve Lhomme
2018-04-03 11:44:25 +02:00
committed by James Almer
parent a56580b117
commit aedbf1640c
2 changed files with 13 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
libavutil/random_seed.c
View File

@@ -26,9 +26,9 @@
#if HAVE_IO_H
#include <io.h>
#endif
#if HAVE_WINCRYPT
#if HAVE_BCRYPT
#include <windows.h>
#include <wincrypt.h>
#include <bcrypt.h>
#endif
#include <fcntl.h>
#include <math.h>
@@ -121,13 +121,14 @@ uint32_t av_get_random_seed(void)
{
uint32_t seed;
#if HAVE_WINCRYPT
HCRYPTPROV provider;
if (CryptAcquireContext(&provider, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
BOOL ret = CryptGenRandom(provider, sizeof(seed), (PBYTE) &seed);
CryptReleaseContext(provider, 0);
if (ret)
#if HAVE_BCRYPT
BCRYPT_ALG_HANDLE algo_handle;
NTSTATUS ret = BCryptOpenAlgorithmProvider(&algo_handle, BCRYPT_RNG_ALGORITHM,
MS_PRIMITIVE_PROVIDER, 0);
if (BCRYPT_SUCCESS(ret)) {
NTSTATUS ret = BCryptGenRandom(algo_handle, (UCHAR*)&seed, sizeof(seed), 0);
BCryptCloseAlgorithmProvider(algo_handle, 0);
if (BCRYPT_SUCCESS(ret))
return seed;
}
#endif