Module nixbase32

Implements the slightly odd “base32” encoding that’s used in Nix.

Nix uses a custom alphabet. Contrary to other implementations (RFC4648), encoding to “nix base32” doesn’t use any padding, and reads in characters in reverse order.

This is also the main reason why we can’t use data_encoding::Encoding - it gets things wrong if there normally would be a need for padding.

Constants

ALPHABET 🔒

BASE32_ORD 🔒

This maps a nixbase32-encoded character to its binary representation, which is also the index of the character in the alphabet. Invalid characters are mapped to 0xFF, which is itself an invalid value.

Functions

decode

Returns decoded input

decode_fixed

decode_inner 🔒

decode_len

Returns the decoded length of an input of length len.

encode

Returns encoded input

encode_len

Returns the encoded length of an input of length len

find_invalid 🔒