$manlookup

proc_keys

(5)

in-kernel key management

File formats and configurationmanpages 6.9.1-1also documents /proc/keys, /proc/key-users

DESCRIPTION

/proc/keys (since Linux 2.6.10)
See keyrings(7).
/proc/key-users (since Linux 2.6.10)
See keyrings(7).

See also

proc(5)