- CLSAG signature scheme added
- type hints added
xmr: optimize protocol, send only required data
- real_out_additional_tx_keys contains only one element as nothing more is needed during signature
- only src_entr.outputs[index] is HMACed and always present. Other outputs are present only if needed which reduces comm and CPU overhead.
- getting rid of subaddresses dictionary (memory requirements), now subaddr indices are present per source entry so keys are computed when needed
xmr: prepare for permutation sending removal, specify index
- specify source entry ordering index prior sorting by key images as original HMAC keys are generated based on these.
- permutation checked just by valid HMACs, size of the set, key image sort order
- sending permutation is now deprecated, will be removed in the following protocol versions
- more strict state transition checks, guard strict check with respect to steps ordering
otherwise code like the following would fail:
>>> self.assertRaises(AssertionError, ensure, False)
because the AssertionError raised internally by `ensure` would be
conflated with the AssertionError raised by the tested function
expose ff.c constants, raise them as arguments to FatFSError
introduce NotMounted and NoFilesystem as subclasses of FatFSError with
the appropriate error code set
- different approach to vector manipulation - more on the fly operations. Prepared for fully offloaded operations, BP on Trezor with constant memory.
- memory requirements reduced from (4MN + const) to (2MN + const)
- more raw methods to avoid unnecessary encoding/decoding
- chunking improved, chunk size set as a constant, changed from 64 to 32, missing pieces implemented to cover also BP 16
- proof_v8 support discontinued, old hardfork, not needed anymore
- get_exponent register clash fixed (for large vectors)
- reduced heap fragmentation by removing some temporary allocations
- hashing with len and offset to reduce heap fragmentation by creating a sliced arrays
- use to() wherever possible to avoid allocations and return of mutable private object
- global functions start with _ prefix, reduce import footprint
- use __slots__ in classes to minimize footprint
