NSS tools : cmsutil

Name

   cmsutil — Performs basic cryptograpic operations, such as encryption and
   decryption, on Cryptographic Message Syntax (CMS) messages.

Synopsis

   cmsutil [options] arguments

Description

   The cmsutil command-line uses the S/MIME Toolkit to perform basic
   operations, such as encryption and decryption, on Cryptographic Message
   Syntax (CMS) messages.

   To run cmsutil, type the command cmsutil option [arguments] where option
   and arguments are combinations of the options and arguments listed in the
   following section. Each command takes one option. Each option may take
   zero or more arguments. To see a usage string, issue the command without
   options.

Options and Arguments

   Options

   Options specify an action. Option arguments modify an action. The options
   and arguments for the cmsutil command are defined as follows:

   -D

           Decode a message.

   -C

           Encrypt a message.

   -E

           Envelope a message.

   -O

           Create a certificates-only message.

   -S

           Sign a message.

   Arguments

   Option arguments modify an action and are lowercase.

   -c content

           Use this detached content (decode only).

   -d dbdir

           Specify the key/certificate database directory (default is ".")

   -e envfile

           Specify a file containing an enveloped message for a set of
           recipients to which you would like to send an encrypted message.
           If this is the first encrypted message for that set of recipients,
           a new enveloped message will be created that you can then use for
           future messages (encrypt only).

   -G

           Include a signing time attribute (sign only).

   -h num

           Generate email headers with info about CMS message (decode only).

   -i infile

           Use infile as a source of data (default is stdin).

   -N nickname

           Specify nickname of certificate to sign with (sign only).

   -n

           Suppress output of contents (decode only).

   -o outfile

           Use outfile as a destination of data (default is stdout).

   -P

           Include an S/MIME capabilities attribute.

   -p password

           Use password as key database password.

   -r recipient1,recipient2, ...

           Specify list of recipients (email addresses) for an encrypted or
           enveloped message. For certificates-only message, list of
           certificates to send.

   -T

           Suppress content in CMS message (sign only).

   -u certusage

           Set type of cert usage (default is certUsageEmailSigner).

   -Y ekprefnick

           Specify an encryption key preference by nickname.

Usage

   Encrypt Example

 cmsutil -C [-i infile] [-o outfile] [-d dbdir] [-p password] -r "recipient1,recipient2, . . ." -e envfile


   Decode Example

 cmsutil -D [-i infile] [-o outfile] [-d dbdir] [-p password] [-c content] [-n] [-h num]


   Envelope Example

 cmsutil -E [-i infile] [-o outfile] [-d dbdir] [-p password] -r "recipient1,recipient2, ..."


   Certificate-only Example

 cmsutil -O [-i infile] [-o outfile] [-d dbdir] [-p password] -r "cert1,cert2, . . ."


   Sign Message Example

 cmsutil -S [-i infile] [-o outfile] [-d dbdir] [-p password] -N nickname[-TGP] [-Y ekprefnick]


See also

   certutil(1)

See Also

Additional Resources

   NSS is maintained in conjunction with PKI and security-related projects
   through Mozilla dn Fedora. The most closely-related project is Dogtag PKI,
   with a project wiki at [1]http://pki.fedoraproject.org/wiki/.

   For information specifically about NSS, the NSS project wiki is located at
   [2]http://www.mozilla.org/projects/security/pki/nss/. The NSS site relates
   directly to NSS code changes and releases.

   Mailing lists: pki-devel@redhat.com and pki-users@redhat.com

   IRC: Freenode at #dogtag-pki

Authors

   The NSS tools were written and maintained by developers with Netscape and
   now with Red Hat.

   Authors: Elio Maldonado <emaldona@redhat.com>, Deon Lackey
   <dlackey@redhat.com>.

Copyright

   (c) 2010, Red Hat, Inc. Licensed under the GNU Public License version 2.

References

   Visible links
   1. http://pki.fedoraproject.org/wiki/
   2. http://www.mozilla.org/projects/security/pki/nss/