openssl-prime, prime - compute prime numbers
openssl prime [-help] [-hex]
[-generate] [-bits] [-safe] [-checks]
The prime command checks if the specified numbers are
If no numbers are given on the command line, the -generate
flag should be used to generate primes according to the requirements
specified by the rest of the flags.
- Display an option summary.
- Generate hex output.
- Generate a prime number.
- [-bits num]
- Generate a prime with num bits.
- When used with -generate, generates a "safe" prime. If
the number generated is n, then check that (n-1)/2 is also
- [-checks num]
- Perform the checks num times to see that the generated number is
prime. The default is 20.
Copyright 2017 The OpenSSL Project Authors. All Rights
Licensed under the OpenSSL license (the "License"). You
may not use this file except in compliance with the License. You can obtain
a copy in the file LICENSE in the source distribution or at