playfair_cipher 0.3.1

Playfair cipher as described at <https://en.wikipedia.org/wiki/Playfair_cipher> and Four square ad described at <https://en.wikipedia.org/wiki/Four-square_cipher>.
Documentation
Builds

playfair_cipher's sandbox limits

All the builds on docs.rs are executed inside a sandbox with limited resources. The limits for this crate are the following:

Available RAM 6.44 GB
Maximum rustdoc execution time 15m
Maximum size of a build log 102.4 kB
Network access blocked
Maximum number of build targets 10

If a build fails because it hit one of those limits please open an issue to get them increased.