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mk-ca-bundle.1
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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 2008 - 2022, Daniel Stenberg, <[email protected]>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
.\" *
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
.\" *
.\" * SPDX-License-Identifier: curl
.\" *
.\" **************************************************************************
.\"
.TH mk-ca-bundle 1 "24 Oct 2016" "version 1.27" "mk-ca-bundle manual"
.SH NAME
mk-ca-bundle \- convert Mozilla's certificate bundle to PEM format
.SH SYNOPSIS
mk-ca-bundle [options]
.I [outputfile]
.SH DESCRIPTION
The mk-ca-bundle tool downloads the \fIcertdata.txt\fP file from Mozilla's
source tree over HTTPS, then parses \fIcertdata.txt\fP and extracts
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
file.
The default \fIoutputfile\fP name is \fBca-bundle.crt\fP. By setting it to '-'
(a single dash) you will 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.
.SH OPTIONS
The following options are supported:
.IP -b
backup an existing version of \fIoutputfilename\fP
.IP "-d [name]"
specify which Mozilla tree to pull \fIcertdata.txt\fP 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 certificates
data from.
.IP -f
force rebuild even if \fIcertdata.txt\fP is current (Added in version 1.17)
.IP -i
print version info about used modules
.IP -k
Allow insecure data transfer. By default (since 1.27) this command will fail
if the HTTPS transfer fails. This overrides that decision (and opens for
man-in-the-middle attacks).
.IP -l
print license info about \fIcertdata.txt\fP
.IP -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 will make those comments get passed on
to the output file. The meta data is not parsed in any way by mk-ca-bundle.
.IP -n
no download of \fIcertdata.txt\fP (to use existing)
.IP "-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
(\fISERVER_AUTH:TRUSTED_DELEGATOR\fP).
(Added in version 1.21, Perl only)
Valid purposes are:
.RS
\fIALL\fP, \fIDIGITAL_SIGNATURE\fP, \fINON_REPUDIATION\fP,
\fIKEY_ENCIPHERMENT\fP, \fIDATA_ENCIPHERMENT\fP, \fIKEY_AGREEMENT\fP,
\fIKEY_CERT_SIGN\fP, \fICRL_SIGN\fP, \fISERVER_AUTH\fP (default),
\fICLIENT_AUTH\fP, \fICODE_SIGNING\fP, \fIEMAIL_PROTECTION\fP,
\fIIPSEC_END_SYSTEM\fP, \fIIPSEC_TUNNEL\fP, \fIIPSEC_USER\fP,
\fITIME_STAMPING\fP, \fISTEP_UP_APPROVED\fP
.RE
.IP
Valid trust levels are:
.RS
\fIALL\fP, \fITRUSTED_DELEGATOR\fP (default), \fINOT_TRUSTED\fP, \fIMUST_VERIFY_TRUST\fP, \fITRUSTED\fP
.RE
.IP -q
be really quiet (no progress output at all)
.IP -t
include plain text listing of certificates
.IP "-s [algorithms]"
comma separated list of signature algorithms with which to hash/fingerprint
each certificate and output when run in plain text mode.
(Added in version 1.21, Perl only)
Valid algorithms are:
.RS
ALL, NONE, MD5 (default), SHA1, SHA256, SHA384, SHA512
.RE
.IP -u
unlink (remove) \fIcertdata.txt\fP after processing
.IP -v
be verbose and print out processed certificate authorities
.SH EXIT STATUS
Returns 0 on success. Returns 1 if it fails to download data.
.SH FILE FORMAT
The file format used by Mozilla for this trust information is documented here:
.nf
https://p11-glue.freedesktop.org/doc/storing-trust-policy/storing-trust-existing.html
.fi
.SH SEE ALSO
.BR curl (1)