Module: types

class doubleratchet.types.EncryptedMessage(header, ciphertext)[source]

Bases: NamedTuple

A Double Ratchet-encrypted message, consisting of the header and ciphertext.

Parameters:

header (Header)
ciphertext (bytes)

header: Header: Alias for field number 0

ciphertext: bytes: Alias for field number 1

class doubleratchet.types.Header(ratchet_pub, previous_sending_chain_length, sending_chain_length)[source]

Bases: NamedTuple

The header structure sent with each Double Ratchet-encrypted message, containing the metadata to keep the ratchets synchronized.

Parameters:

ratchet_pub (bytes)
previous_sending_chain_length (int)
sending_chain_length (int)

ratchet_pub: bytes: Alias for field number 0

previous_sending_chain_length: int: Alias for field number 1

sending_chain_length: int: Alias for field number 2

Type Aliases

doubleratchet.types.JSONType: alias of Mapping[str, JSONType] | List[JSONType] | str | int | float | bool | None

doubleratchet.types.JSONObject: alias of Mapping[str, JSONType]

doubleratchet.types.SkippedMessageKeys: alias of OrderedDict[Tuple[bytes, int], bytes]