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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.