jetring-diff - shows the differences between two keyrings
jetring-diff keyring1.gpg keyring2.gpg
Given two gpg keyrings, it displays a diff of the changes between the
two keyrings. The diff is designed to be sure to show a change whenever
anything changes between the two keyrings, with human readability as a
secondary criteria. (It is based on gpg --with-colons output.)
This is a low-level command, that is run by higher-level commands like
Joey Hess, <firstname.lastname@example.org>.