| SSH1
| SSH2
| OpenSSH
| Option
| Meaning
|
| -1 filename
| Convert SSH1 key file to SSH2
|
|
|
|
| -b bits
| # of bits in generated key
|
| N
| -B positive_integer [180]
| Specify numeric base for displaying key
|
|
|
| -c
| Change comment (with -C )
|
|
| -c comment
| Change comment
|
|
|
| -C comment
| Specify new comment (with -c)
|
|
| -d
| Generate DSA key
|
| N
| -D filename
| Derive public key from private key file
|
|
| -e filename
| Edit key file interactively
|
|
| [181]
|
| -f filename
| Output filename
|
|
| -F filename
| Print fingerprint of public key
|
|
| -h
| Print help and exit
|
|
| -l
| Print fingerprint of public key
|
|
|
| -N passphrase
| Specify new passphrase
|
|
| -o filename
| Output filename
|
|
|
| -p
| Change passphrase (with -P and -N )
|
| F
| -p passphrase
| Change passphrase
|
|
|
| -P passphrase
| Specify old passphrase (with -p)
|
|
| -P
| Use empty passphrase
|
|
|
| -q
| Quiet: suppress progress indicator
|
|
| -r
| Stir in data from random pool
|
|
| -R
| Detect RSA (exit code 0/1)
|
|
| -t algorithm
| Select key-generation algorithm
|
|
| -u
| Change encryption algorithm
|
| F
| -v
| Print version string and exit
|
| N
| -V
| Print version string and exit
|
|
| -x
| Convert OpenSSH public key to SSH2
|
|
| -X
| Convert SSH2 public key to OpenSSH
|
|
| -y
| Derive public key from private key file
|
|
| -? [182]
| Print help and exit |