Network Security Services

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Revision as of 11:40, 10 April 2011 by Danny8 (Talk | contribs) (Moved to category "internet applications")

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Network Security Services (NSS) is a set of libraries designed to support cross-platform development of security-enabled client and server applications. Applications built with NSS can support SSL v2 and v3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, S/MIME, X.509 v3 certificates, and other security standards.

Certificate management


For list all certificates:

certutil -d sql:$HOME/.pki/nssdb -L

For list details of a certificate:

certutil -d sql:$HOME/.pki/nssdb -L -n <certificate nickname>


To add a certificate use:

certutil -d sql:$HOME/.pki/nssdb -A -t <TRUSTARGS> -n <certificate nickname> -i <certificate filename>

The TRUSTARGS are three strings of zero or more alphabetic characters, separated by commas. They define how the certificate should be trusted for SSL, email, and object signing, and are explained in the certutil docs or Meena's blog post on trust flags.

To add a personal certificate and private key for SSL client authentication use the command:

pk12util -d sql:$HOME/.pki/nssdb -i PKCS12_file.p12

This will import a personal certificate and private key stored in a PKCS #12 file. The TRUSTARGS of the personal certificate will be set to "u,u,u".


certutil -d sql:$HOME/.pki/nssdb -M -t <TRUSTARGS> -n <certificate nickname>


certutil -d sql:$HOME/.pki/nssdb -D -n <certificate nickname>

Links and References