1 # Linux Cert Management
3 **NOTE:** SSL client authentication with personal certificates does not work
4 completely in Linux, see [issue 16830](https://crbug.com/16830) and
5 [issue 25241](https://crbug.com/25241).
7 The easy way to manage certificates is navigate to chrome://settings/search#ssl.
8 Then click on the "Manage Certificates" button. This will load a built-in
9 interface for managing certificates.
11 On Linux, Chromium uses the
12 [NSS Shared DB](https://wiki.mozilla.org/NSS_Shared_DB_And_LINUX). If the
13 built-in manager does not work for you then you can configure certificates with
15 [NSS command line tools](http://www.mozilla.org/projects/security/pki/nss/tools/).
21 * Debian/Ubuntu: `sudo apt-get install libnss3-tools`
22 * Fedora: `su -c "yum install nss-tools"`
23 * Gentoo: `su -c "echo 'dev-libs/nss utils' >> /etc/portage/package.use &&
24 emerge dev-libs/nss"` (You need to launch all commands below with the `nss`
25 prefix, e.g., `nsscertutil`.)
26 * Opensuse: `sudo zypper install mozilla-nss-tools`
28 ### List all certificates
30 certutil -d sql:$HOME/.pki/nssdb -L
32 #### Ubuntu Jaunty error
34 Above (and most commands) gives:
36 certutil: function failed: security library: invalid arguments.
38 Package version 3.12.3.1-0ubuntu0.9.04.2
40 ### List details of a certificate
42 certutil -d sql:$HOME/.pki/nssdb -L -n <certificate nickname>
47 certutil -d sql:$HOME/.pki/nssdb -A -t <TRUSTARGS> -n <certificate nickname> \
48 -i <certificate filename>
51 The TRUSTARGS are three strings of zero or more alphabetic characters, separated
52 by commas. They define how the certificate should be trusted for SSL, email, and
53 object signing, and are explained in the
54 [certutil docs](http://www.mozilla.org/projects/security/pki/nss/tools/certutil.html#1034193)
56 [Meena's blog post on trust flags](https://blogs.oracle.com/meena/entry/notes_about_trust_flags).
58 For example, to trust a root CA certificate for issuing SSL server certificates,
62 certutil -d sql:$HOME/.pki/nssdb -A -t "C,," -n <certificate nickname> \
63 -i <certificate filename>
66 To import an intermediate CA certificate, use
69 certutil -d sql:$HOME/.pki/nssdb -A -t ",," -n <certificate nickname> \
70 -i <certificate filename>
73 Note: to trust a self-signed server certificate, we should use
76 certutil -d sql:$HOME/.pki/nssdb -A -t "P,," -n <certificate nickname> \
77 -i <certificate filename>
80 This should work now, because
81 [NSS bug 531160](https://bugzilla.mozilla.org/show_bug.cgi?id=531160) is claimed
82 to be fixed in a related bug report. If it doesn't work, then to work around
83 the NSS bug, you have to trust it as a CA using the "C,," trust flags.
85 #### Add a personal certificate and private key for SSL client authentication
89 pk12util -d sql:$HOME/.pki/nssdb -i PKCS12_file.p12
91 to import a personal certificate and private key stored in a PKCS #12 file. The
92 TRUSTARGS of the personal certificate will be set to "u,u,u".
94 ### Delete a certificate
96 certutil -d sql:$HOME/.pki/nssdb -D -n <certificate nickname>