FFmpeg
|
Modules | |
AES | |
AES-CTR | |
Base64 | |
Blowfish | |
CAMELLIA | |
CAST5 | |
DES | |
Hash Functions | |
HMAC | |
LZO | |
RC4 | |
TEA | |
TWOFISH | |
XTEA | |
Functions | |
uint32_t | av_get_random_seed (void) |
Get a seed to use in conjunction with random functions. More... | |
int | av_random_bytes (uint8_t *buf, size_t len) |
Generate cryptographically secure random data, i.e. More... | |
uint32_t av_get_random_seed | ( | void | ) |
Get a seed to use in conjunction with random functions.
This function tries to provide a good seed at a best effort bases. Its possible to call this function multiple times if more bits are needed. It can be quite slow, which is why it should only be used as seed for a faster PRNG. The quality of the seed depends on the platform.
Definition at line 167 of file random_seed.c.
Referenced by av_aes_ctr_set_random_iv(), av_parse_color(), config_input(), config_output(), config_props(), do_adobe_auth(), do_llnw_auth(), ff_perlin_init(), init(), main(), make_digest_auth(), mkv_init(), mxf_gen_umid(), ogg_init(), prompeg_init(), rtmp_server_handshake(), rtp_write_header(), rtsp_read_setup(), and sap_write_header().
int av_random_bytes | ( | uint8_t * | buf, |
size_t | len | ||
) |
Generate cryptographically secure random data, i.e.
suitable for use as encryption keys and similar.
buf | buffer into which the random data will be written |
len | size of buf in bytes |
0 | success, len bytes of random data was written into buf |
a negative AVERROR code | random data could not be generated |
Definition at line 130 of file random_seed.c.
Referenced by av_get_random_seed(), and do_encrypt().