MODULI(5) File Formats Manual MODULI(5) moduli - - OpenSSH (DESCRIPTION) /etc/ssh/moduli sshd(8) - (Diffie- Hellman Group Exchange) . ssh-keygen(1) . (candidate generation) ssh-keygen -M generate . (primality testing) ssh-keygen -M screen - sshd(8) . moduli . ( ) . : timestamp YYYYMMDDHHMMSS. type . : 0 . 2 <<>> (Safe prime) (p-1)/2 . 4 (Sophie Germain) 2p+1 . ssh-keygen(1) ( 4) . ssh-keygen(1) ( 2) sshd(8) . OpenSSH . tests : 0x00 . 0x01 - . 0x02 (Sieve of Eratosthenes). 0x04 - (Miller-Rabin). ssh-keygen(1) ( 0x02) . ssh-keygen(1) - ( 0x04) . trials . size . generator ( ). modulus (). - (Diffie-Hellman Group Exchange) sshd(8) - . sshd(8) /etc/ssh/moduli . (SEE ALSO) ssh-keygen(1), sshd(8) (STANDARDS) M. Friedl, N. Provos, and W. Simpson, Diffie-Hellman Group Exchange for the Secure Shell (SSH) Transport Layer Protocol, RFC 4419, March 2006. Linux 6.12.107+deb13-amd64 April 16, 2022 Linux 6.12.107+deb13-amd64