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Manual Reference Pages  -  SECSTORE (1)


aescbc, ipso, secstore - secstore commands


See Also


secstore [ -s server ] [ -(g|G) getfile ] [ -p putfile ] [ -r rmfile ] [ -c ] [ -u user ] [ -v ] [ -i ]

aescbc -e <cleartext >ciphertext
aescbc -d <ciphertext >cleartext

ipso [ -a -e -l -f ] [ file ... ]


Secstore authenticates to the server using a password and optionally a hardware token, then saves or retrieves a file. This is intended to be a credentials store (public/private keypairs, passwords, and other secrets) for a factotum.

Option -p stores a file on the secstore.

Option -g retrieves a file to the local directory; option -G writes it to standard output instead. Specifying getfile of . will send to standard output a list of remote files with dates, lengths and SHA1 hashes.

Option -r removes a file from the secstore.

Option -c prompts for a password change.

Option -v produces more verbose output, in particular providing a few bits of feedback to help the user detect mistyping.

Option -i says that the password should be read from standard input instead of from /dev/tty.

Option -n says that the password should be read from NVRAM (see authsrv(3)) instead of from /dev/tty.

The server is tcp!$auth!secstore, or the server specified by option -s.

For example, to add a secret to the file read by factotum(4), run

% cd somewhere-private
% auth/secstore -g factotum
secstore password:
% echo ’key proto=apop user=ehg !password=hi’ >> factotum
% auth/secstore -p factotum
secstore password:
% cat factotum | 9p write -l factotum/ctl

and delete the window. The middle commands fetch the persistent copy of the secrets, append a new secret, and save the updated file back to secstore. The final command loads the new secret into the running factotum.

The ipso command packages this sequence into a convenient script to simplify editing of files stored on a secure store. It copies the named files into a private directory, plumbs them to the editor, and waits for a line on the console Once a line is typed, signifying that editing is complete, ipso prompts the user to confirm copying modifed or newly created files back to secstore. If no file is mentioned, ipso grabs all the user’s files from secstore for editing.

By default, ipso will edit the secstore files and, if one of them is named factotum, flush current keys from factotum and load the new ones from the file. If the -e, -f, or -l options are given, ipso will just perform only the requested operations, i.e., edit, flush, and/or load.

The -a option of ipso provides a similar service for files encrypted by aescbc (q.v.). With the -a option, the full rooted pathname of the file must be specified and all files must be encrypted with the same key. Also with -a, newly created files are ignored.

Aescbc encrypts and decrypts using AES (Rijndael) in cipher block chaining (CBC) mode.




factotum(4), secstored(1)


There is deliberately no backup of files on the secstore, so -r (or a disk crash) is irrevocable. You are advised to store important secrets in a second location.

When using ipso, secrets will appear as plain text in the editor window, so use the command in private.

Establishing a private directory in which to store the secret files is difficult on Unix. On most systems, ipso creates a mode 700 directory /tmp/ipso.user and works there. On Linux systems, ipso looks for a tmpfs file system; if it exists, ipso creates the ipso.user directory in its root instead of /tmp.

Ipso should zero the secret files before removing them.

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