74 lines
4.1 KiB
Plaintext
74 lines
4.1 KiB
Plaintext
Future development will continue at https://github.com/lfs-book
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make-ca is a utility to deliver and manage a complete PKI configuration for
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workstations and servers using only standard Unix utilities, OpenSSL, and
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p11-kit, using a Mozilla cacerts.txt or like file as the trust source. It can
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optionally generate keystores for OpenJDK PKCS#12 and NSS if installed. It was
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originally developed for use with Linux From Scratch to minimize dependencies
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for early system build, but has been written to be generic enough for any Linux
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distribution.
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The make-ca script will process the certificates included in the certdata.txt
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file, and place them in the system trust anchors, for use in multiple
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certificate stores. Additionally, any local OpenSSL Trusted certificates
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stored in /etc/ssl/local will also be imported into the system trust anchors
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and certificate stores making it a full trust management utiltiy.
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The make-ca script depends on OpenSSL >= 1.1.0, P11-Kit >= 0.23.19, and
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optionally NSS >= 3.23 and Java >= 1.7. Additionally, Coreutils, gawk, and
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sed are used. The default locations for output files can be tailored for
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your environment via the /etc/make-ca.conf configuration file (copy
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/etc/make-ca/make-ca.conf.dist).
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A p11-kit helper, copy-trust-modifications, is included for use in p11-kit's
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trust-extract-compat script (which should be symlinked to the user's path as
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update-ca-certificates). Manual creation of OpenSSL Trusted certificates is no
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longer required for general use. Instead, import the certificate using
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p11-kit's 'trust anchor --store /path/to/certificate.crt' functionality.
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This will recreate the individual stores assigning approriate permissions to
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the newly added anchor(s). Additionally, a copy of any newly added anchors will be placed into $LOCALDIR for future use.
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For the p11-kit distro hook, remove the "not configured" and "exit 1" lines
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from trust/trust-extract-compat, and append the following:
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===============================================================================
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# Copy existing modifications to local store
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/usr/libexec/make-ca/copy-trust-modifications
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# Update trust stores
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/usr/sbin/make-ca -r
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===============================================================================
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If you wish to distribute the results of this script as a standalone package,
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unlike in the BLFS distribution for which it was originally written, where the
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end user is ultimately responsible for the content, you, as the distributor, are
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taking ownership for the results. You are strongly encouraged to define a
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written inclusion policy, distribute all blacklisted files as a part of the
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local directory, and to provide the written policy in the distributed package.
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While the p11-kit trust utility can be used in most simple cases, you may
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require additional trust arguments for certian certificates. In these cases,
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you will need to manually create an OpenSSL trusted certificate from a regular
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PEM encoded file (use -inform for der or pkcs7 encoded certs). There are three
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trust types that are recognized by the make-ca.sh script, SSL/TLS, S/Mime, and
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code signing. For example, using the CAcert root, if you want it to be trusted
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for all three roles, the following commands will create an appropriate OpenSSL
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Trusted certificate:
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# install -vdm755 /etc/ssl/local &&
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# wget http://www.cacert.org/certs/root.crt &&
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# openssl x509 -in root.crt -text -fingerprint -setalias "CAcert Class 1 root" \
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-addtrust serverAuth -addtrust emailProtection -addtrust codeSigning \
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> /etc/ssl/local/CAcert_Class_1_root.pem
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If one of the three trust arguments is omitted, the certificate is neither
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trusted, nor rejected for that role. Clients using GnuTLS without p11-kit
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support are not aware of trusted certificates. To include this CA into the
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ca-bundle.crt (used for GnuTLS linked applications not using the p11-module),
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it must have serverAuth trust. Additionally, to explicitly disallow a
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certificate for a particular use, replace the -addtrust flag with the
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-addreject flag.
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Local trust overrides are handled entirely using the /etc/ssl/local directory.
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To override Mozilla's trust values, simply make a copy of the certificate in
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the local directory with alternate trust values.
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