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Binary serialization format with metadata, validation, and configurable hash IDs with proof-of-work (VDF) support.
Kasten is intended to wrap messages for transport agnostic communication.
Sending a message:
import kasten # Bob creates message message = b"hello world" # Mode for any external lib to use encrypt_mode = 0 packed_message: bytes = kasten.generator.pack.pack(message, 'txt', encrypt_mode) # We pick the base generator which checks for sha3_256 validity and that's it # However we could also pick KastenMimcGenerator which has both validity and proof-of-work ratelimiting # Or, we could make our own. Both parties just need the same logic. kasten = kasten.generator.KastenBaseGenerator.generate(packed_message) message_checksum: bytes = kasten.id # Bob sends packed_message and message_checksum to Alice
Receiving a message:
import kasten # Alice receives message bobs_message = b'\x93\xa3txt\x00\xce_F\xc7!\nhello world' bobs_checksum = b"\xac\x83K=n\xdb\xba\x9aJ\xca:\x82]'9b\xd0\x98\xda\xee'\x9f\xf2\xd7\x94\x9e\x91\x94\x9dnh6\x02\x03\xf0\xfe\x85\xbdrLj]R\xeb;xB@" # Recreate on Alice's end using the checksum, message, and the same generator # The generator will automatically check message validity and throw a kasten.exceptions.InvalidID exception if failed kasten_message = kasten.Kasten(bobs_checksum, bobs_message, kasten.generator.KastenBaseGenerator)