Module code_envelope 

Shared wire format for pasted coven codes: prefix + base64url(json).

Restore, device-pairing, and membership-operation codes are JSON payloads wrapped the same way — a recognizable prefix, then the payload base64url-encoded — so they share one implementation of those mechanics.

Enums

EnvelopeError

An envelope-level decode failure. Each caller maps this to its own user-facing error type.

FixedHexError

Constants

PREFIX

Prefix on a pasted coven code, so a string from an unrelated format is rejected immediately with a clear “missing prefix” error rather than failing confusingly at base64 or JSON decode.

Functions

decode_code

Decode {prefix}{base64url(json)} back into T. Trims surrounding whitespace first, so a pasted code with stray leading/trailing newlines still decodes.

decode_fixed_hex

Decode fixed-length hex material carried inside a pasted code.

encode_code

Encode code as {prefix}{base64url(json)}.