mjolnir42 / hash64

Hash64 encoding wrapper for Go

Hash64 - Encoding Wrapper around base64

Hash64 is the term Python's passlib coined for a variant of base64 encoding traditionally used for encoding password hashes in passwd(5) files.

FreeBSD's md5crypt by Poul-Henning Kamp introduced the $1$ identifier which was chosen since $ does not appear in the Hash64 character map and thus avoided collisions with existing DES hashes; thus laying the groundwork for what is now refered to as the Modular Crypt Format. A number of schemes in MCF use Hash64 to encode salt and hash digest.

This encoding type is usually unpadded.

Hash64 implements two trivial wrappers Hash64.StdEncoding for the unpadded encoding and Hash64.PadEncoding for the padded one. They are of type *base64.Encoding, and as such the regular functions offered by it can be used: Decode, DecodeToString, DecodedLen, Encode, EncodeToString and EncodedLen.

License

It feels silly to add a license to 3 lines of code, but no license means no usage at all. This code is therefor put under Creative Commons Zero.