diff options
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 881c23c8c8..70dc509d2f 100644 --- a/libavutil/random_seed.c +++ b/libavutil/random_seed.c @@ -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 |