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Understanding FIPS Self-Tests

 

The cryptographic module enforces security rules to ensure that a switch running the Juniper Networks Junos operating system (Junos OS) in FIPS mode meets the security requirements of FIPS 140-2 Level 1. To validate the output of cryptographic algorithms approved for FIPS and test the integrity of some system modules, the system performs the following series of known answer test (KAT) self-tests:

  • kernel_kats—KAT for kernel cryptographic routines

  • md_kats—KAT for libmd and libc

  • openssl_kats—KAT for OpenSSL cryptographic implementation

  • quicksec_kats—KAT for QuickSec Toolkit cryptographic implementation

  • ssh_ipsec_kats—KAT for SSH IPsec Toolkit cryptographic implementation

The KAT self-tests are performed automatically at startup and reboot, regardless of whether FIPS mode is enabled on the switch. Conditional self-tests are also performed automatically to verify digitally signed software packages, generated random numbers, RSA and DSA key pairs, and manually entered keys.

If the KATs are completed successfully, the system log (syslog) file is updated to display the tests that were executed.

If the system fails a KAT, it writes the details to a system log file, enters FIPS error state (panic), and reboots the switch.

The file show /var/log/messages command displays the system log.