RAND_egd

RAND_egd ? query entropy gathering daemon

 #include <openssl/rand.h>

 int RAND_egd(const char *path);

RAND_egd() queries the entropy gathering daemon EGD on socket path.

EGD is available from http://www.lothar.com/tech/crypto/ (perl Makefile.PL; make; make install to install). It is run as egd path, where path is an absolute path designating a socket. When RAND_egd() is called with that path as an argument, it tries to read random bytes that EGD has collected. The read is performed in non-blocking mode.

RAND_egd() returns the number of bytes read from the daemon on success, and ?1 if the connection failed or the daemon did not return enough data to fully seed the PRNG.

rand(3), RAND_add(3), RAND_cleanup(3)

RAND_egd() is available since OpenSSL 0.9.5.