prime.1ssl man page

openssl-prime, prime — compute prime numbers

Synopsis

openssl prime [-help] [-hex] [-generate] [-bits] [-safe] [-checks] [number...]

Description

The prime command checks if the specified numbers are prime.

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.

Options

[-help]

Display an option summary.

[-hex]

Generate hex output.

[-generate]

Generate a prime number.

[-bits num]

Generate a prime with num bits.

[-safe]

When used with -generate, generates a “safe” prime. If the number generated is n, then check that (n-1)/2 is also prime.

[-checks num]

Perform the checks num times to see that the generated number is prime.  The default is 20.

Referenced By

openssl.1ssl(1).

The man page openssl-prime.1ssl(1) is an alias of prime.1ssl(1).

2019-11-21 1.1.1d OpenSSL