diff options
| author | Steve Lhomme <robux4@ycbcr.xyz> | 2018-04-03 11:44:25 +0200 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2018-04-19 10:54:26 +0300 |
| commit | abf806f7f1601c7e54de7f863bbb816af144a88c (patch) | |
| tree | 7b4e72aa0d802aef82c2bee2edb4acd487891f94 /libavutil | |
| parent | 347aa8f72356124ec6b95bf8ebd1faf72db03f8d (diff) | |
random_seed: use bcrypt instead of the old wincrypt API
Remove the wincrypt API calls since we don't support XP anymore and
bcrypt is available since Vista, even on Windows Store builds.
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavutil')
| -rw-r--r-- | libavutil/random_seed.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/libavutil/random_seed.c b/libavutil/random_seed.c index 089d883916..388cb401ba 100644 --- a/libavutil/random_seed.c +++ b/libavutil/random_seed.c @@ -23,9 +23,9 @@ #if HAVE_UNISTD_H #include <unistd.h> #endif -#if HAVE_WINCRYPT +#if HAVE_BCRYPT #include <windows.h> -#include <wincrypt.h> +#include <bcrypt.h> #endif #include <fcntl.h> #include <math.h> @@ -96,13 +96,14 @@ 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 |