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SSHM-bM-^@M-^PRANDM-bM-^@M-^PHELPER(8) BSD System ManagerM-bM-^@M-^Ys Manual SSHM-bM-^@M-^PRANDM-bM-^@M-^PHELPER(8)
^[[1mNAME^[[0m
^[[1msshM-bM-^@M-^PrandM-bM-^@M-^Phelper ^[[22mM-bMM-^R Random number gatherer for OpenSSH
^[[1mSYNOPSIS^[[0m
^[[1msshM-bM-^@M-^PrandM-bM-^@M-^Phlper ^[[22m[^[[1mM-bMM-^RvxXh^[[22m] [^[[1mM-bMM-^Rb ^[[4m^[[22mbytes^[[24m]
^[[1mDESCRIPTION^[[0m
^[[1msshM-bM-^@M-^PrandM-bM-^@M-^Phelper ^[[22mis a small helper program used by ssh(1), sshM-bM-^@M-^Padd(1),
sshM-bM-^@M-^Pagent(1), sshM-bM-^@M-^Pkeygen(1), sshM-bM-^@M-^Pkeyscan(1) and sshd(8) to gather random
numbers of cryptographic quality if the openssl(4) library has not been
configured to provide them itself.
Normally ^[[1msshM-bM-^@M-^PrandM-bM-^@M-^Phelper ^[[22mwill generate a strong random seed and provide
it to the calling program via standard output. If standard output is a
tty, ^[[1msshM-bM-^@M-^PrandM-bM-^@M-^Phelper ^[[22mwill instead print the seed in hexidecimal format
unless told otherwise.
^[[1msshM-bM-^@M-^PrandM-bM-^@M-^Phelper ^[[22mwill by default gather random numbers from the system
commands listed in ^[[4m/etc/ssh/ssh_prng_cmds^[[24m. The output of each of the
commands listed will be hashed and used to generate a random seed for the
calling program. ^[[1msshM-bM-^@M-^PrandM-bM-^@M-^Phelper ^[[22mwill also store seed files in
^[[4m~/.ssh/prng_seed^[[24m between executions.
Alternately, ^[[1msshM-bM-^@M-^PrandM-bM-^@M-^Phelper ^[[22mmay be configured at build time to collect
random numbers from a EGD/PRNGd server via a unix domain or localhost tcp
socket.
This program is not intended to be run by the endM-bM-^@M-^Puser, so the few comM-bM-^@M-^P
mandline options are for debugging purposes only.
^[[1mM-bMM-^Rb ^[[4m^[[22mbytes^[[0m
Specify the number of random bytes to include in the output.
^[[1mM-bMM-^Rx ^[[22mOutput a hexidecimal instead of a binary seed.
^[[1mM-bMM-^RX ^[[22mForce output of a binary seed, even if standard output is a tty
^[[1mM-bMM-^Rv ^[[22mTurn on debugging message. Multiple ^[[1mM-bMM-^Rv ^[[22moptions will increase the
debugging level. ^[[1mM-bMM-^Rh ^[[22mDisplay a summary of options.
^[[1mAUTHORS^[[0m
Damien Miller <djm@mindrot.org>
^[[1mSEE ALSO^[[0m
ssh(1), sshM-bM-^@M-^Padd(1), sshM-bM-^@M-^Pkeygen(1), sshd(8)
BSD April 14, 2002 BSD
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