ffmpeg | branch: master | Steve Lhomme <rob...@ycbcr.xyz> | Tue Apr 3 11:44:25 2018 +0200| [aedbf1640ced8fc09dc980ead2a387a59d8f7f68] | committer: James Almer
avutil/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. Reviewed-by: Michael Niedermayer <mich...@niedermayer.cc> Signed-off-by: James Almer <jamr...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=aedbf1640ced8fc09dc980ead2a387a59d8f7f68 --- configure | 6 +++--- libavutil/random_seed.c | 19 ++++++++++--------- 2 files changed, 13 insertions(+), 12 deletions(-) diff --git a/configure b/configure index 73857f4511..36e425be62 100755 --- a/configure +++ b/configure @@ -2142,10 +2142,10 @@ SYSTEM_FUNCS=" " SYSTEM_LIBRARIES=" + bcrypt vaapi_drm vaapi_x11 vdpau_x11 - wincrypt " TOOLCHAIN_FEATURES=" @@ -3445,7 +3445,7 @@ avformat_deps="avcodec avutil" avformat_suggest="libm network zlib" avresample_deps="avutil" avresample_suggest="libm" -avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt" +avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt" postproc_deps="avutil gpl" postproc_suggest="libm" swresample_deps="avutil" @@ -5828,9 +5828,9 @@ check_header asm/types.h check_builtin stdatomic stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar" check_lib advapi32 "windows.h" RegCloseKey -ladvapi32 +check_lib bcrypt "windows.h bcrypt.h" BCryptGenRandom -lbcrypt check_lib ole32 "windows.h" CoTaskMemFree -lole32 check_lib shell32 "windows.h shellapi.h" CommandLineToArgvW -lshell32 -check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom -ladvapi32 check_lib psapi "windows.h psapi.h" GetProcessMemoryInfo -lpsapi check_lib android android/native_window.h ANativeWindow_acquire -landroid 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 _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
