PRIME

Section: OpenSSL (1)
Updated: 2021-03-26
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NAME

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.

COPYRIGHT

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 <https://www.openssl.org/source/license.html>.