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Hierarchy Level

Release Information

Statement introduced in Junos OS Release 18.3R1.

HMAC DRBG option introduced in Junos OS Release 18.3R1 for non-FIPS mode also.

dyce option introduced in Junos OS Release 19.3R1.


Configure a system cryptographically secure pseudorandom number generator (CSPRNG). By default rng is not configured.


Only root users can configure rng options.

A device reboot is required for the change to take effect.

In FIPS mode, HMAC-DRBG will be the only active RNG available.



fortunaConfigure the fortuna CSPRNG.
hmac-drbgConfigure the HMAC DRBG CSPRNG.
dyceConfigure the DYCE CSPRNG.

Required Privilege Level

system—To view this statement in the configuration.