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Florian Philipp wrote: |
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> Hi! |
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> |
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> Now that my initrd-script is ready and provides me with the means to |
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> encrypt partitions with a gpg-encrypted key-file [1], I'd like to use |
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> the very same file for user authentication. |
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> |
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> It would be even better if gpg-agent could get it right from the user |
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> authentication (pam) to use it for as many services as possible, ssh, |
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> gpg, gnome-keyring (?), sudo (?), password database. |
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> |
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> I think what I really want is something like a poor man's version of |
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> smartcard authentication. |
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> |
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> Could you please give me some hints? I'd be pleased to hear any |
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> comments, criticism and recommendations on that issue. |
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> |
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> Thanks in advance! |
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> |
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> Florian Philipp |
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> |
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> [1] basically 1k of random data, encrypted with 3DES by gpg |
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|
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emerge pam_usb |
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|
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The latest version of pam_usb uses the usb serial number of the drive, |
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the older one uses an encrypted key in a hidden directory and can be |
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used with more than just a usb key (basically any mountable device would |
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work). |
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|
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I would also recommend checking out how to make your own custom rules in |
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udev. This can let you auto-mount the device on connect, or run a |
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command on connect, etc.. |
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|
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Between the two you should be able to make a good auth function. If you |
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know any C/C++ you could combine the two into a custom setup (e.g. using |
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the contents of a file on the key, decrypted via the serial number to |
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get your gpg data..., or use your imagination.) |
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|
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Good luck, |
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Chris Frederick |
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-- |
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