Name

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

Synopsis

cmsutil [options] [[arguments]]

STATUS

This documentation is still work in progress. Please contribute to the initial review in Mozilla NSS bug 836477

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

For information about NSS and other tools related to NSS (like JSS), check out the NSS project wiki at http://www.mozilla.org/projects/security/pki/nss/. The NSS site relates directly to NSS code changes and releases.

Mailing lists: https://lists.mozilla.org/listinfo/dev-tech-crypto

IRC: Freenode at #dogtag-pki

Authors

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

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

LICENSE

Licensed under the Mozilla Public License, version 1.1, and/or the GNU General Public License, version 2 or later, and/or the GNU Lesser General Public License, version 2.1 or later.