The Debian Package ca-certificates-local ---------------------------- This package includes local CA certificates to be installed in /usr/local/share/ca-certificates. The CA certificates installed by this package will be implicitly trusted. This is an example stub source package that includes a dummy CA certificate in the local/ directory. Remove the dummy certificate, copy your trusted local root CA (in PEM format with the filename ending in ".crt") to the local/ directory, edit files in the debian/ directory as desired, and build your custom package. ---------------------------- Steps to build your custom local root CA package from this example: - Check that your local root CA is in PEM-encoded format, the filename ends in ".crt", and that it is properly usable by openssl; for example: $ openssl x509 -text -in Deep_Thought_Dummy_Root_CA.crt Certificate: Data: Version: 3 (0x2) Serial Number: 66 (0x42) Signature Algorithm: sha1WithRSAEncryption Issuer: CN=Deep Thought Dummy Root CA Validity Not Before: Aug 29 00:00:00 2013 GMT Not After : Aug 28 23:59:59 2042 GMT Subject: CN=Deep Thought Dummy Root CA Subject Public Key Info: Public Key Algorithm: rsaEncryption Public-Key: (1024 bit) Modulus: 00:a2:e3:00:b0:d2:fa:92:57:02:97:5e:80:e0:1a: <...> c5:6e:dc:50:7f:3f:34:b8:29 Exponent: 65537 (0x10001) X509v3 extensions: X509v3 Basic Constraints: critical CA:TRUE X509v3 Subject Key Identifier: C3:FF:DB:49:E2:8A:A4:26:62:19:74:F0:66:41:E1:5F:F7:4B:3F:A7 X509v3 Key Usage: Certificate Sign, CRL Sign Netscape Cert Type: SSL CA, S/MIME CA, Object Signing CA Signature Algorithm: sha1WithRSAEncryption 1f:32:49:f2:7f:ed:80:62:2e:49:b7:ce:84:b9:c1:c5:1a:f6: <...> 32:2d -----BEGIN CERTIFICATE----- MIICEjCCAXugAwIBAgIBQjANBgkqhkiG9w0BAQUFADAlMSMwIQYDVQQDExpEZWVw <...> yTxhjDIt -----END CERTIFICATE----- - Copy this example source package somewhere to build as a normal user, for instance your home directory: $ cp -a /usr/share/doc/ca-certificates/examples/ca-certificates-local ~/ $ cd ~/ca-certificates-local/ - Remove the dummy CA certificate, copy your local root CA certificate(s) to the local/ directory, and build the package: $ rm local/Local_Root_CA.crt $ cp /path/to/YourOrg_Root_CA.crt local/ $ dpkg-buildpackage - Install the package (or copy it to your local apt repository for installation on lots of machines): $ sudo dpkg -i ../ca-certificates-local_0.1_all.deb - Feel free to edit the files under the debian/ directory for items like the maintainer name and email address, version, etc. to better reflect your own organization. This is just an example to get you started with a proper local root CA package.