![bsdtalk117 - One Time Passwords](https://cdn.podcastcms.de/images/shows/315/9059/s/288987728/bsdtalk117-one-time-passwords.png)
bsdtalk117 - One Time Passwords
Important when you don't trust the computer you are using, such as a library computer or internet kiosk.Available by default in Free/Net/Open BSD.FreeBSD uses OPIE, Net/Open use S/Key.One time passwords are based on your pass phrase, a non-repeating sequ
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vor 8 Jahren
Important when you don't trust the computer you are using, such as a library computer or internet kiosk.Available by default in Free/Net/Open BSD.FreeBSD uses OPIE, Net/Open use S/Key.One time passwords are based on your pass phrase, a non-repeating sequence number, and a seed.Initial setup should be done directly on the server."skeyinit" for Net/Open, "opiepasswd -c" for FreeBSD.Enter a pass phrase that is not your regular account password.Find your current sequence number and seed with "opieinfo" or "skeyinfo", for example: "497 pc5246".Generate a list of the next 10 passwords and write them down, using "opiekey -n 10 497 pc5246" or "skey -n 10 497 pc5246".When you log in from a remote machine that might have a keystroke logger, you can now use a one time password instead of your regular password.For OpenBSD, log in as account:skey, for example "bob:skey", which will cause the system to present the s/key challenge.For NetBSD, the system will always present you with the s/key challenge if it is configured for your account, although you can still use your regular password.FreeBSD by default will force you to use a one time password if it is configured for your account.If you want both OPIE and password authentication, FreeBSD allows you to list trusted networks or hosts in /etc/opieaccess.Instead of carrying a list of passwords around, you can use s/key generators on a portable device that you trust, such as a palm pilot.For more info, check the man pages.File info: 6Min, 4MB.Ogg Link:https://archive.org/download/bsdtalk117/bsdtalk117.ogg
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