NAME

cpasswd - change passphrase on cfs directory

SYNOPSIS

cpasswd directory

DESCRIPTION

cpasswd changes the passphrase associated with a Cryptographic File System (CFS) directory. cpasswd prompts for the old passphrase, and, if it is correct, a new passphrase, which must be entered twice. Passphrases must contain at least a minimum number of characters (currently 16).

Only new format (CFS 1.3 or later) directories can have their passphrases changed.

FILES

directory/...

known-plaintext hash of the assigned keys.

directory/..c

identifies the cipher algorithm.

directory/..k

encrypted key file

SEE ALSO

cfsd(8), cattach(1), cmkdir(1)

BUGS

One passphrase per encrypted directory; there is no provision (yet) for individual users' passphrases.

AUTHOR

Matt Blaze; for information on cfs, email to cfs@research.att.com.