rand − generate pseudo−random bytes |
openssl rand [−out file] [−rand file(s)] [−base64] [−hex] num |
The rand command outputs num pseudo-random bytes after seeding the random number generator once. As in other openssl command line tools, PRNG seeding uses the file $HOME/.rnd or .rnd in addition to the files given in the −rand option. A new $HOME/.rnd or .rnd file will be written back if enough seeding was obtained from these sources. |
−out file |
Write to file instead of standard output. |
−rand file(s) |
Use specified file or files or EGD socket (see RAND_egd(3)) for seeding the random number generator. Multiple files can be specified separated by a OS-dependent character. The separator is ; for MS-Windows, , for OpenVMS, and : for all others. |
−base64 |
Perform base64 encoding on the output. |
−hex |
Show the output as a hex string. |
RAND_bytes(3) |