base64

A text-based data encoding that allows binary data to be sent over channels which only support ASCII text (e.g. teletype systems), at the cost of a 33% increase in size. Standardized by [RFC 4648](https://www.rfc-editor.org/rfc/rfc4648). Often recognizable by the presence of one or two equals signs (=) at the end of the text, though this is not possible when padding characters are ommitted, or when the length (in bytes) of the original data is a multiple of 3.