A5.2

A5/2 is an implementation of the A5 Algorithm.

It was made intentionally weaker so that European nations could crack it after selling it to the Eastern Bloc.

• https://web.archive.org/web/20161221091853/https://asecuritysite.com/encryption/a5
• https://laforge.gnumonks.org/blog/20101112-history_of_a52_withdrawal/