This requires updating a couple serde test vectors -- we are tightening
validation so that some existing serde-serialized PSBTs no longer
deserialize. I believe this is the correct thing to do.
The `units::locktime` types are used for two things:
- They are the inner types of `primitives` `LockTime`s
- They are used ephemerally for checking satisfaction
Neither of these use cases requires `serde` impls for the `units` types.
Since we are trying to release 1.0 with minimal amounts of code we
should remove them.
For `LockTime`s that need to be stored on disk or go over the wire we
can manually implement the `serde` traits. For `absolute::LockTime` this
is done already and there is no reason the `relative::LockTime` impl
cannot be the same [0]. This differs from the current `serde` trait impls
but we have already decided that in 0.33 we are going to accept breakage
and direct users to use 0.32 to handle it.
- Remove `serde` stuff from `units::locktime`
- Manually implement `serde` traits on `relative::LockTime`
- Fix the regression test to use the new format
While we are at it use a uniform terse call in `serialize`.
[0] This is because there is an unambiguous encoding for the whole set
of locktimes - consensus encoding.
Replace derived Psbt serde implementation with one that conforms to
BIP-174. In human readable serde contexts, serialize to the base64
encoded format, and in binary serde contexts, serialize to the raw
binary format.
The previous derived serde implementation cannot be used in a backward or
forward compatible way in binary formats like bincode, which means that
every field added to the Psbt struct would break serde de/serialization
into binary formats. Instead, this one-time breaking change will fix the
issue going forward.
Downstream users with persisted data in the old serde format should continue
using 0.32.x to create migrations to the new format.
We plan on enforcing MAX_MONEY in the amount types. In preparation use
MAX_MONEY in the serde regression test instead of the arbitrary, and too
large DEADBEEFCAFEBABE value.
Currently we use `u8` for key type but it was pointed out that we should
be using a `u64` and encoding it as a compact type. The reason our code
works now is because the compact type encoding for a `u8` (less than
253) is the same as for a `u8`.
This breaks the `serde` impl, as shown by changes to the regression tests.
In BIP0032, m is used as a variable for the root extended key. It is not
meant to be used as a constant prefix when serializing paths.
Update the DerivationPath parser to no longer require the m prefix.
Remove the m prefix from the unit tests and the bip32, ecdsa-psbt,
and taproot-psbt examples.
close#2449
Implementing this for spendinfo is really complicated because it
contains some cached data without retaining the components that are used
to compute them.
Users should serde the 1) NodeInfo and 2) internal key and reconstruct
TaprootSpendInfo from it.
Cleanly separate `TapTree` and `NodeInfo`. Fix serde not respecting
invariants for several data structures
Repurpose some tests from removed taproot builder for taptree
"schnorr" is a dirty word; the current `schnorr` module defines a
`Signature` that includes a sighash type, this sighash type is a bitcoin
specific construct related to taproot. Therefore the `Signature` is
better named `taproot::Signature`. Note also that the usage of `schnorr`
in `secp256k1` is probably justified because the
`secp256::schnorr::Signature` is just doing the crypto.
While we are at it, update docs and error messages to use "taproot"
instead of "schnorr". Also change function names and identifiers that
use "schnorr".
In order that we can safely change/maintain de/serialization code we
need to have regression tests with hard coded serializations for each
type that implements serde.
It is enough to test a single serde data format, use JSON for `opcodes`
and bincode for other types.
Do regression testing in a newly added `tests` module.
Andrew Poelstra
Tobin C. Harding
Daniel Roberts
Jose Storopoli
josibake
Subhradeep Chakraborty
sanket1729