version 1.53.2.2, 2003/04/03 22:35:17 |
version 1.54, 2002/06/19 00:27:55 |
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.Nd authentication key generation, management and conversion |
.Nd authentication key generation, management and conversion |
.Sh SYNOPSIS |
.Sh SYNOPSIS |
.Nm ssh-keygen |
.Nm ssh-keygen |
.Bk -words |
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.Op Fl q |
.Op Fl q |
.Op Fl b Ar bits |
.Op Fl b Ar bits |
.Fl t Ar type |
.Fl t Ar type |
.Op Fl N Ar new_passphrase |
.Op Fl N Ar new_passphrase |
.Op Fl C Ar comment |
.Op Fl C Ar comment |
.Op Fl f Ar output_keyfile |
.Op Fl f Ar output_keyfile |
.Ek |
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.Nm ssh-keygen |
.Nm ssh-keygen |
.Fl p |
.Fl p |
.Op Fl P Ar old_passphrase |
.Op Fl P Ar old_passphrase |
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.It Fl b Ar bits |
.It Fl b Ar bits |
Specifies the number of bits in the key to create. |
Specifies the number of bits in the key to create. |
Minimum is 512 bits. |
Minimum is 512 bits. |
Generally, 1024 bits is considered sufficient. |
Generally 1024 bits is considered sufficient, and key sizes |
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above that no longer improve security but make things slower. |
The default is 1024 bits. |
The default is 1024 bits. |
.It Fl c |
.It Fl c |
Requests changing the comment in the private and public key files. |
Requests changing the comment in the private and public key files. |