diff options
| author | James Almer <jamrial@gmail.com> | 2023-07-04 19:49:23 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2023-07-06 15:30:27 -0300 |
| commit | b7f4d5fa7e04498fddd60d298bc4a95241a581da (patch) | |
| tree | 7873dfb90141b64cb64489cfc24f22076dec65c9 /libavutil/random_seed.c | |
| parent | 68e9d2835fa3e5c0f73a32a8455fdcd9a5a01e77 (diff) | |
avutil/random_seed: add support for gcrypt and OpenSSL as source of randomness
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavutil/random_seed.c')
| -rw-r--r-- | libavutil/random_seed.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libavutil/random_seed.c b/libavutil/random_seed.c index f5c291263e..2980e565e0 100644 --- a/libavutil/random_seed.c +++ b/libavutil/random_seed.c @@ -30,6 +30,11 @@ #include <windows.h> #include <bcrypt.h> #endif +#if CONFIG_GCRYPT +#include <gcrypt.h> +#elif CONFIG_OPENSSL +#include <openssl/rand.h> +#endif #include <fcntl.h> #include <math.h> #include <time.h> @@ -143,6 +148,17 @@ int av_random_bytes(uint8_t* buf, size_t len) #endif err = read_random(buf, len, "/dev/urandom"); + if (!err) + return err; + +#if CONFIG_GCRYPT + gcry_randomize(buf, len, GCRY_VERY_STRONG_RANDOM); + return 0; +#elif CONFIG_OPENSSL + if (RAND_bytes(buf, len) == 1) + return 0; + err = AVERROR_EXTERNAL; +#endif return err; } |