sixword

https://github.com/ab/sixword

Sixword implements the 6-word binary encoding created for S/Key (tm) and standardized by RFC 2289, RFC 1760, and RFC 1751. Binary data may be encoded using a dictionary of 2048 English words of 1-4 characters in length. Each block of 64 bits is encoded using 6 words, which includes 2 parity bits. It is ideal for transmitting binary data such as cryptographic keys where humans must communicate or enter the values. See also: Bubble Babble, PGP Word List, Diceware, Base64, Base32