mk-ca-bundle(1) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | FILE FORMAT | SEE ALSO | COLOPHON

mk-ca-bundle(1)          General Commands Manual         mk-ca-bundle(1)

NAME         top

       mk-ca-bundle - convert Mozilla's certificate bundle to PEM format

SYNOPSIS         top

       mk-ca-bundle [options] [output]

DESCRIPTION         top

       This tool downloads the certdata.txt file from Mozilla's source
       tree over HTTPS, then parses it and extracts the included
       certificates into PEM format.  By default, only CA root
       certificates trusted to issue SSL server authentication
       certificates are extracted. These are then processed with the
       OpenSSL command line tool to produce the final ca-bundle output
       file.

       The default output name is ca-bundle.crt. By setting it to '-' (a
       single dash) you get the output sent to STDOUT instead of a file.

       The PEM format this scripts uses for output makes the result
       readily available for use by just about all OpenSSL or GnuTLS
       powered applications, such as curl and others.

OPTIONS         top

       The following options are supported:

       -b     backup an existing version of output

       -d [name]
              specify which Mozilla tree to pull certdata.txt from (or a
              custom URL).  Valid names are: aurora, beta, central,
              Mozilla, nss, release (default). They are shortcuts for
              which source tree to get the certificate data from.

       -f     force rebuild even if certdata.txt is current (Added in
              version 1.17)

       -i     print version info about used modules

       -k     Allow insecure data transfer. By default (since 1.27) this
              command fails if the HTTPS transfer fails. This overrides
              that decision (and opens for man-in-the-middle attacks).

       -l     print license info about certdata.txt

       -m     (Added in 1.26) Include meta data comments in the output.
              The meta data is specific information about each
              certificate that is stored in the original file as
              comments and using this option makes those comments get
              passed on to the output file. The meta data is not parsed
              in any way by mk-ca-bundle.

       -n     Do not download certdata.txt - use the existing.

       -p [purposes]:[levels]
              list of Mozilla trust purposes and levels for certificates
              to include in output. Takes the form of a comma separated
              list of purposes, a colon, and a comma separated list of
              levels. The default is to include all certificates trusted
              to issue SSL Server certificates
              (SERVER_AUTH:TRUSTED_DELEGATOR).

              Valid purposes are: ALL, DIGITAL_SIGNATURE,
              NON_REPUDIATION, KEY_ENCIPHERMENT, DATA_ENCIPHERMENT,
              KEY_AGREEMENT, KEY_CERT_SIGN, CRL_SIGN, SERVER_AUTH
              (default), CLIENT_AUTH, CODE_SIGNING, EMAIL_PROTECTION,
              IPSEC_END_SYSTEM, IPSEC_TUNNEL, IPSEC_USER, TIME_STAMPING,
              STEP_UP_APPROVED

              Valid trust levels are: ALL, TRUSTED_DELEGATOR (default),
              NOT_TRUSTED, MUST_VERIFY_TRUST, TRUSTED

       -q     be really quiet (no progress output at all)

       -t     include plain text listing of certificates

       -s [algorithms]
              A comma separated list of signature algorithms with which
              to hash/fingerprint each certificate and output when run
              in plain text mode.

              Valid algorithms are: ALL, NONE, MD5 (default), SHA1,
              SHA256, SHA384, SHA512

       -u     unlink (remove) certdata.txt after processing

       -v     be verbose and print out processed certificate authorities

EXIT STATUS         top

       Returns 0 on success. Returns 1 if it fails to download data.

FILE FORMAT         top

       The file format used by Mozilla for this trust information is
       documented here:

       https://p11-glue.freedesktop.org/doc/storing-trust-policy/storing-trust-existing.html

SEE ALSO         top

       curl(1)

COLOPHON         top

       This page is part of the curl (Command line tool and library for
       transferring data with URLs) project.  Information about the
       project can be found at ⟨https://curl.haxx.se/⟩.  If you have a
       bug report for this manual page, see
       ⟨https://curl.haxx.se/docs/bugs.html⟩.  This page was obtained
       from the project's upstream Git repository
       ⟨https://github.com/curl/curl.git⟩ on 2024-06-14.  (At that time,
       the date of the most recent commit that was found in the
       repository was 2024-06-14.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       [email protected]

mk-ca-bundle                   2024-06-07                mk-ca-bundle(1)