Commit Graph

690 Commits

Author SHA1 Message Date
Dr Maxim Orlovsky 62a27a51e2 Document that serde impl of LeafVersion uses u8 in consensus encoding
Closes #764
2022-01-13 17:53:50 +01:00
Dr Maxim Orlovsky 6364ebd927 Code style fixups to taproot key functions 2022-01-13 17:48:13 +01:00
Dr Maxim Orlovsky 7514f2ca18 Tweaked -> untweaked keys conversions 2022-01-13 17:40:27 +01:00
KaFai Choi 40f38b3edc
enforce strict SI(treat capital of m, u, n, p as invalid) in parsing amount denomiation. add disallow_unknown_denomination test 2022-01-13 20:27:41 +07:00
sanket1729 7d62277f83
Merge rust-bitcoin/rust-bitcoin#696: Taproot tweaks generalization & KeyPair support
7405836411 Fix warning about deprecated method use (Dr Maxim Orlovsky)
f39b1300fa CI: do not fail fast (Dr Maxim Orlovsky)
f77c57195a Making Script method new_* names more consistent (Dr Maxim Orlovsky)
91b68a468d Taproot-related methods for Script type (Dr Maxim Orlovsky)
599c5f9488 Generalizing taproot key tweaking for KeyPairs (Dr Maxim Orlovsky)

Pull request description:

  * Adds taproot-related methods to `Script`
  * Fixes API for existing taproot methods
  * Generalizes `TapTweak` trait to work with both public keys and key pairs

  ~~UPD: PR is pending https://github.com/rust-bitcoin/rust-secp256k1/pull/342~~

ACKs for top commit:
  sanket1729:
    ACK 7405836411
  apoelstra:
    ACK 7405836411

Tree-SHA512: 4a76dfffa1452baadc15e19812831ef9d2e66794c090a8fc123388d7119b2c8a1f0420ce723ad22e01683c8198711fe62e0cdf00c9ad2d2974606383baaf1cb0
2022-01-13 10:06:30 +05:30
Andrew Poelstra bc9388e24a
Merge rust-bitcoin/rust-bitcoin#774: Change type of final script witness to Witness from Vec<Vec<u8>>
9a8ab3f3ff Change type of final script witness to Witness from Vec<Vec<u8>> (sanket1729)

Pull request description:

  Doing this would certainly help APIs downstream that operate on &Witness because they would not conversion from &Vec<Vec<u8>> to &Witness.

ACKs for top commit:
  Kixunil:
    ACK 9a8ab3f3ff
  RCasatta:
    ACK 9a8ab3f3ff
  dr-orlovsky:
    ACK 9a8ab3f3ff
  apoelstra:
    ACK 9a8ab3f3ff

Tree-SHA512: 647e18d254a51d6216a0122407146e8bc1d39504e76c1e0e746f740cec7cda587455b61d4cdadc3c59b1cf03eba87000de35fbde645a30fb166a84847ba101b2
2022-01-11 16:05:59 +00:00
sanket1729 9a8ab3f3ff Change type of final script witness to Witness from Vec<Vec<u8>> 2022-01-11 21:11:18 +05:30
Dr Maxim Orlovsky 7405836411 Fix warning about deprecated method use 2022-01-11 16:10:29 +01:00
Dr Maxim Orlovsky 599c5f9488 Generalizing taproot key tweaking for KeyPairs 2022-01-11 16:09:32 +01:00
KaFai Choi e80de8b1ee
add nano and pico BTC to Donomination enum 2022-01-11 19:23:45 +07:00
Dr Maxim Orlovsky eb09019720 Rename inner key field in PrivateKey and PublicKey
Closes #532
2022-01-11 08:39:52 +01:00
sanket1729 e4d5039a86
Merge rust-bitcoin/rust-bitcoin#591: PSBT BIP32 keys using to Secp256k1 keys instead of bitcoin ECDSA
a6e8f581db PSBT BIP32 keys moved to Secp256k1 from bitcoin ECDSA (Dr Maxim Orlovsky)

Pull request description:

  Fourth step in implementation of Schnorr key support after #588. This PR is a follow-up to non-API breaking #589 and API-breaking #590, which must be reviewed and merged first. ~~(The current PR includes all commits from #589 and #590, which should be reviewed there. The only commit specific to this PR is b8105e95dc8651626b783403ca060f7d32d21144)~~

  UPDATE: All related PRs are merged now and this PR is ready for the review

  PR description:
  While PSBT BIP174 does not specify whether uncompressed keys are supported in BIP32-related fields, from BIP32 it follows that it is impossible to use uncompressed keys within the extended keys.  This PR fixes this situation and is a companion to BIP174 PR clarifying key serialization: https://github.com/bitcoin/bips/pull/1100

ACKs for top commit:
  apoelstra:
    ACK a6e8f581db
  sanket1729:
    ACK a6e8f581db. Not sure which order to merge since there are many ready PRs which that would break each other.

Tree-SHA512: 198ba646bbce1949b255a54a97957d952acdad8b7f9580be123116c0f44d773e6d90e0cac0d5993ec9a6b3328aa43aced0908522817861585877c50008fec835
2022-01-11 12:42:53 +05:30
Dr Maxim Orlovsky a6e8f581db PSBT BIP32 keys moved to Secp256k1 from bitcoin ECDSA
Fourth step in implementation of Schnorr key support after #588.

While PSBT BIP174 does not specify whether uncompressed keys are supported in BIP32-related fields, from BIP32 it follows that it is impossible to use uncompressed keys within the extended keys.  This PR fixes this situation and is a companion to BIP174 PR clarifying key serialization: https://github.com/bitcoin/bips/pull/1100
2022-01-10 10:16:57 +01:00
KaFai Choi 9835736ef5
wrap u8 and LeafVersion in backticks and square bracket in doc 2022-01-10 15:09:44 +07:00
sanket1729 d82afc6ef5
Merge rust-bitcoin/rust-bitcoin#761: Taproot trivial post-merge fixups
7f06e91a93 LowerHex and UpperHex implementations for LeafVersion (Dr Maxim Orlovsky)
6a3f3aabaf Inverse alternative formatting for LeafVersion type (Dr Maxim Orlovsky)
bec6694233 Fix docs on error conditions in LeafVersion::from_consensus (Dr Maxim Orlovsky)
7c28b47451 LowerHex and UpperHex implementations for FutureLeafVersion (Dr Maxim Orlovsky)

Pull request description:

  Trivial post-merge fixups from review comments in #718

ACKs for top commit:
  Kixunil:
    ACK 7f06e91a93
  sanket1729:
    ACK 7f06e91a93

Tree-SHA512: d94c4bd3d0b466287c8965103f74ecaba185d14c13b6c3f37d9fbe194343b3fc902fd2c7716554ad01fe28ff89cda933df199b7e8388a3fa6097028caf62522b
2022-01-10 04:18:48 +05:30
sanket1729 476eed7f2f
Merge rust-bitcoin/rust-bitcoin#590: Taproot: BIP32 extended keys using Scep256k1 keys instead of bitcoin ECDSA
cf0c48cc86 Improve Debug for PrivateKey (Dr Maxim Orlovsky)
b65a6ae49b Test for extended private key keypair generation  f5875a (Dr Maxim Orlovsky)
e6a3d603c9 BIP32 extended key `to_ecdsa()` and `to_schnorr()` methods (Dr Maxim Orlovsky)
b72f56c4ae BIP32 extended keys are using Scep256k1 keys instead of bitcoin ECDSA (Dr Maxim Orlovsky)

Pull request description:

  This is third step required to introduce Schnorr key support according to #588. This PR starts API-breaking changes and is follow-up to non-API breaking #589, which is already merged.

  PR rationale: BIP32 does not support uncompressed keys and using type with compression flag was a mistake

ACKs for top commit:
  apoelstra:
    ACK cf0c48cc86
  sanket1729:
    ACK cf0c48cc86. #757 might need rework after this

Tree-SHA512: 6356a65004e7517256bacbf9aaeb69a22fd8536b341e567c5c4e819288e1105d083fe12ac0641404c407c97acf039bdc525f8e02b1b594a6cdda90106f3b1bdc
2022-01-10 03:46:05 +05:30
Dr Maxim Orlovsky 7f06e91a93 LowerHex and UpperHex implementations for LeafVersion 2022-01-09 20:52:38 +01:00
Dr Maxim Orlovsky 6a3f3aabaf Inverse alternative formatting for LeafVersion type 2022-01-09 20:50:22 +01:00
Dr Maxim Orlovsky bec6694233 Fix docs on error conditions in LeafVersion::from_consensus 2022-01-09 20:48:00 +01:00
Dr Maxim Orlovsky 7c28b47451 LowerHex and UpperHex implementations for FutureLeafVersion 2022-01-09 20:46:51 +01:00
Andrew Poelstra 8e9f99b620
Merge rust-bitcoin/rust-bitcoin#718: Converting LeafVersion into an enum
ef8a3a839e Introduce FutureLeafVersion (Dr Maxim Orlovsky)
b028385a72 Improve docs in LeafVersion (Dr Maxim Orlovsky)
839c022f29 Make serde for LeafVersion to have byte representation (Dr Maxim Orlovsky)
67b8db05a8 Converting LeafVersion into an enum (Dr Maxim Orlovsky)
2405417432 Use TAPROOT_ANNEX_PREFIX in sighash module (Dr Maxim Orlovsky)

Pull request description:

  The original `LeafVersion` implementation was just a newtype around `u8`. I think that having enum explicitly listing consensus script implementation rules may be more beneficial in terms of both code readibility and future use of multiple script types, where `LeafVersion` may operate as a context object provided to `Script` to specify interpretation rules for particular op codes.

ACKs for top commit:
  Kixunil:
    ACK ef8a3a839e
  sanket1729:
    crACK ef8a3a839e. Waiting a day to let others complete review before merging.
  apoelstra:
    ACK ef8a3a839e

Tree-SHA512: 3356d2b9b00cf904edfece26d26ffbc646ba74446cc23ec4b2b4026ed50861285802f077226e30ba8fed466f68f8e8556c729ce48cb38581b1d95a02a6fde9cf
2022-01-09 15:26:05 +00:00
Dr Maxim Orlovsky cf0c48cc86 Improve Debug for PrivateKey 2022-01-09 07:17:10 +01:00
Dr Maxim Orlovsky b65a6ae49b Test for extended private key keypair generation f5875a 2022-01-09 07:17:06 +01:00
Dr Maxim Orlovsky e6a3d603c9 BIP32 extended key `to_ecdsa()` and `to_schnorr()` methods 2022-01-09 07:17:02 +01:00
Dr Maxim Orlovsky b72f56c4ae BIP32 extended keys are using Scep256k1 keys instead of bitcoin ECDSA
According to #588, BIP32 does not support uncompressed keys and using type with compression flag is a mistake
2022-01-09 07:16:49 +01:00
Dr Maxim Orlovsky ef8a3a839e Introduce FutureLeafVersion 2022-01-08 23:40:21 +01:00
Dr Maxim Orlovsky 14ace92666 Fix SchnorrSig type references in PSBT serialization macros 2022-01-08 16:29:45 +01:00
Dr Maxim Orlovsky b028385a72 Improve docs in LeafVersion 2022-01-07 22:06:17 +01:00
Dr Maxim Orlovsky 839c022f29 Make serde for LeafVersion to have byte representation 2022-01-07 22:04:41 +01:00
Dr Maxim Orlovsky 2b530000d3 Use EcdsaSig in PSBT partial signatures instead of Vec<u8> 2022-01-07 21:57:42 +01:00
Dr Maxim Orlovsky 141dbbd1b9 Add serde impl for EcdsaSig 2022-01-07 21:57:42 +01:00
Dr Maxim Orlovsky c92057d98f PSBT serialize/deserialize impl for EcdsaSig type 2022-01-07 21:57:42 +01:00
Dr Maxim Orlovsky 0af1c3f320 Add Display and FromStr for EcdsaSig 2022-01-07 21:57:11 +01:00
Dr Maxim Orlovsky c36a3da6f0 Add EcdsaSig::sighash_all convenience constructor 2022-01-07 21:49:05 +01:00
Andrew Poelstra f332a1967e
Merge rust-bitcoin/rust-bitcoin#750: Use `test_data` for big objects, add big block for benchmarking
247a14f4c3 Use test big block for bench_stream_reader instead of making one (Riccardo Casatta)
b92dfbb63f exclude test_data when publishing the crate (Riccardo Casatta)
f5a9681a2a include a big block in test_data, use it for ser/de benchmark (Riccardo Casatta)
09dada55d6 Move bip158 test vectors to test_data (Riccardo Casatta)
06d1a820c3 Remove testnet block hex from tests, use test_data with include_bytes! (Riccardo Casatta)

Pull request description:

  In the first two commits I moved some data from source files to the newly introduced `test_data` dir, including it with `include_[str|bytes]!` macro.

  The second-to-last commit introduces a big block in test_data which is very handy in ser/de benchmark (I used it for #672) because with smaller blocks you may not notice performance improvements.

  Since I don't want to pollute the package the last commit excludes the `test_data` dir from the published package. I think it's fine to do it because dependent packages don't run dependencies tests.

ACKs for top commit:
  apoelstra:
    ACK 247a14f4c3
  Kixunil:
    tACK 247a14f4c3

Tree-SHA512: a2beb635b0a358737d0b57d3e7205b1ddf87652b9a8c889ce63e2867659a8eaf7e43a5b87a453345d56d953745913f40b58596f449e5fbc87340e0dd2aef0727
2022-01-07 20:22:02 +00:00
Dr Maxim Orlovsky 67b8db05a8 Converting LeafVersion into an enum 2022-01-07 20:28:36 +01:00
Dr Maxim Orlovsky 2405417432 Use TAPROOT_ANNEX_PREFIX in sighash module 2022-01-07 20:27:34 +01:00
sanket1729 91470f56c8 Uncomment sighash test
We can check tweak add priv key with latest secp
2022-01-07 04:45:40 +05:30
sanket1729 2178c7367c Update to secp256k1 0.21.2 2022-01-07 04:45:40 +05:30
Riccardo Casatta 09dada55d6
Move bip158 test vectors to test_data 2022-01-06 13:47:58 +01:00
Riccardo Casatta 06d1a820c3
Remove testnet block hex from tests, use test_data with include_bytes! 2022-01-06 13:47:51 +01:00
Tobin Harding 533120899e Put rustdocs above attributes
Rust idiomatic style is to put the rustdoc _above_ any attributes on
types, functions, etc.

Audit the codebase and move comments/attributes to the correct place.
Add a trailing full stop at times to neaten things up a little extra.
2022-01-06 13:04:47 +11:00
sanket1729 92ee5a7e5f Test BIP341 sighash code 2022-01-01 04:12:46 +05:30
Dr. Maxim Orlovsky 670e808c17
Merge rust-bitcoin/rust-bitcoin#681: Add support for taproot psbt fields BIP 371
7d982fa9a2 Add all tests from BIP 371 (sanket1729)
d22e0149ad Taproot psbt impl BIP 371 (sanket1729)
108fc3d4db Impl encodable traits for TapLeafhash (sanket1729)
c7478d8fd0 Derive serde for taproot stuctures (sanket1729)

Pull request description:

  Built on top of #677 . Will rebase and mark ready for review after #677 is merged.

ACKs for top commit:
  apoelstra:
    ACK 7d982fa9a2
  dr-orlovsky:
    re-tACK 7d982fa9a2 basing on `git range-diff`. The original PR before last re-base was tested commit-by-commit.

Tree-SHA512: feb30e4b38d13110a9c0fabf6466d8f0fb7df09a82f4e01d70b8371b34ab0187004a6c63f9796c6585ee30841e8ee765ae9becae139d2e1e3d839553d64c3d1e
2021-12-30 02:12:03 +02:00
Dr. Maxim Orlovsky 86055d9df5
Merge rust-bitcoin/rust-bitcoin#672: New Witness struct to improve ser/de perfomance
106acdc3ac Add fuzzing for Witness struct (Riccardo Casatta)
2fd0125bfa Introduce Witness struct mainly to improve ser/de performance while keeping most usability. (Riccardo Casatta)

Pull request description:

  At the moment the Witness struct is  `Vec<Vec<u8>>`, the vec inside a vec cause a lot of allocations, specifically:

  - empty witness -> 1 allocation, while an empty vec doesn't allocate, the outer vec is not empty
  - witness with n elements -> n+1 allocations

  The proposed Witness struct contains the serialized format of the witness. This reduces the allocations to:

  - empty witness -> 0 allocations
  - witness with n elements -> 1 allocation for most common cases (you don't know how many bytes is long the entire witness beforehand, thus you need to estimate a good value, not too big to avoid wasting space and not too low to avoid vector reallocation, I used 128 since it covers about 80% of cases on mainnet)

  The inconvenience is having slightly less comfortable access to the witness, but the iterator is efficient (no allocations) and you can always collect the iteration to have a Vec of slices. If you collect the iteration you end up doing allocation anyway, but the rationale is that it is an operation you need to do rarely while ser/de is done much more often.

  I had to add a bigger block to better see the improvement (ae860247e191e2136d7c87382f78c96e0908d700), these are the results of the benches on my machine:

  ```
  RCasatta/master_with_block
  test blockdata::block::benches::bench_block_deserialize                 ... bench:   5,496,821 ns/iter (+/- 298,859)
  test blockdata::block::benches::bench_block_serialize                   ... bench:     437,389 ns/iter (+/- 31,576)
  test blockdata::block::benches::bench_block_serialize_logic             ... bench:     108,759 ns/iter (+/- 5,807)
  test blockdata::transaction::benches::bench_transaction_deserialize     ... bench:         670 ns/iter (+/- 49)
  test blockdata::transaction::benches::bench_transaction_get_size        ... bench:           7 ns/iter (+/- 0)
  test blockdata::transaction::benches::bench_transaction_serialize       ... bench:          51 ns/iter (+/- 5)
  test blockdata::transaction::benches::bench_transaction_serialize_logic ... bench:          13 ns/iter (+/- 0)

  branch witness_with_block (this one)
  test blockdata::block::benches::bench_block_deserialize                 ... bench:   4,302,788 ns/iter (+/- 424,806)
  test blockdata::block::benches::bench_block_serialize                   ... bench:     366,493 ns/iter (+/- 42,216)
  test blockdata::block::benches::bench_block_serialize_logic             ... bench:      84,646 ns/iter (+/- 7,366)
  test blockdata::transaction::benches::bench_transaction_deserialize     ... bench:         648 ns/iter (+/- 77)
  test blockdata::transaction::benches::bench_transaction_get_size        ... bench:           7 ns/iter (+/- 0)
  test blockdata::transaction::benches::bench_transaction_serialize       ... bench:          50 ns/iter (+/- 5)
  test blockdata::transaction::benches::bench_transaction_serialize_logic ... bench:          14 ns/iter (+/- 0)
  ```

  With an increased performance to deserialize a block of about 21% and to serialize a block of about 16% (seems even higher than expected, need to do more tests to confirm, I'll appreciate tests results from reviewers)

ACKs for top commit:
  apoelstra:
    ACK 106acdc3ac
  sanket1729:
    ACK 106acdc3ac
  dr-orlovsky:
    utACK 106acdc3ac

Tree-SHA512: e4f23bdd55075c7ea788bc55846fd9e30f9cb76d5847cb259bddbf72523857715b0d4dbac505be3dfb9d4b1bcae289384ab39885b4887e188f8f1c06caf4049a
2021-12-30 01:55:44 +02:00
sanket1729 7d982fa9a2 Add all tests from BIP 371 2021-12-28 20:40:58 +05:30
sanket1729 d22e0149ad Taproot psbt impl BIP 371 2021-12-28 20:40:58 +05:30
sanket1729 108fc3d4db Impl encodable traits for TapLeafhash 2021-12-28 20:40:58 +05:30
sanket1729 c7478d8fd0 Derive serde for taproot stuctures 2021-12-28 20:40:58 +05:30
Riccardo Casatta 2fd0125bfa
Introduce Witness struct mainly to improve ser/de performance while keeping most usability.
Witness struct is in place of the Vec<Vec<u8>> we have before this commit.

from_vec() and to_vec() methods are provided to switch between this type and Vec<Vec<u8>>

Moreover, implementation of Default, Iterator and others allows to have similar behaviour but
using a single Vec prevent many allocations during deserialization which in turns results in
better performance, even 20% better perfomance on recent block.

last() and second_to_last() allows to access respective element without going through costly Vec
transformation
2021-12-28 09:56:38 +01:00
Alekos Filini 2959e04ebd
Allow specifing a raw `TapLeafHash` in sighash computation
Instead of always requiring the full raw script and leaf version, allow
just specifying a raw leaf hash to the sighash computation functions.

This is very useful when dealing with PSBTs, because the
`PSBT_IN_TAP_BIP32_DERIVATION` field only maps a public key to a leaf
hash, so a signer could just take it and produce a signature with it
rathern than having to jump through hoops to recover the full raw
script.
2021-12-27 16:18:19 +01:00
Riccardo Casatta 9e1f256b54
Merge rust-bitcoin/rust-bitcoin#731: Improve parsing of `Denomination` string
f690b8e362 Be more liberal when parsing Denomination (Tobin Harding)
628168e493 Add missing white space character (Tobin Harding)

Pull request description:

  There is no reason to force users to use a particular format or case for `Denomination` strings. Users may wish to write any of the following and all seem reasonable
  - 100 sats
  - 100 sat
  - 100 SAT

  The same goes for various other `Denomination`s.

  - Patch 1 enables usage of "sats", "sat", "bit", "bits"
  - Patch 2 enables usage of various lower/uper case formatting

  Fixes: #729

ACKs for top commit:
  Kixunil:
    ACK f690b8e362
  apoelstra:
    ACK f690b8e362

Tree-SHA512: a785608e19a7ba6f689dc022cb17a709041ff56abeaa74649d0832a8bd8aac4593c7a79b46a47dd417796c588d669f50fb3c8b8a984be332ca38a1fef2dcd4ce
2021-12-27 10:17:40 +01:00
Riccardo Casatta f9b3fc9ce8
Merge rust-bitcoin/rust-bitcoin#686: Fixed a bunch of clippy lints, added clippy.toml
779d4110c6 Fixed a bunch of clippy lints, added clippy.toml (Martin Habovstiak)

Pull request description:

  This is the initial step towards using and maybe enforcing clippy.
  It does not fix all lints as some are not applicable. They may be
  explicitly ignored later.

  Some discussion about clippy was in #685

ACKs for top commit:
  apoelstra:
    ACK 779d4110c6
  RCasatta:
    ACK 779d4110c6

Tree-SHA512: fb9192c77565a0b1b2118877c6413945d65900e4e95b3741107bf6cddef1fa65ff09fc5b7814de421382292321cca6bd860bf17b73a227d193a0a13758ee25eb
2021-12-24 09:41:03 +01:00
Riccardo Casatta 6fa8a82414
Merge rust-bitcoin/rust-bitcoin#695: BIP341 test vectors
7aacc3782a Add tests from BIP341 (sanket1729)
61629cc733 Make taproot hashes forward display (sanket1729)

Pull request description:

  Add tests for taproot.
  - ~Also fixes one bug in #677, namely, I was returning `LeafVersion::default()` instead of given version~
  - ~ Fixes a bug in #691 about taking secp context as a reference instead of consuming it. This should have not passed my review, but this is easy to miss. ~
  - Makes the display on taproot hashes forward instead of the reverse (because the BIP prints in a forward way, I think we should too and it is more natural. )

ACKs for top commit:
  RCasatta:
    ACK 7aacc3782a
  apoelstra:
    ACK 7aacc3782a

Tree-SHA512: 2e0442131fc036ffa10f88c91c8fc02d9b67ff6c16c592aa6f4e6a220c26a00fc6ca95a288f14aa40667a289fb0446219fd6c76c0196ead766252356592b9941
2021-12-23 15:32:49 +01:00
Tobin Harding f690b8e362 Be more liberal when parsing Denomination
There is no reason to force users to use one particular form when
providing a denomination string. We can be liberal in what we accept
with no loss of clarity.

Allow `Denomination` strings to use a variety of forms, in particular
lower case and uppercase.

Note, we explicitly disallow various forms of `Msat` because it is
ambiguous whether this means milli or mega sats.

Co-developed-by: Martin Habovštiak <martin.habovstiak@gmail.com>
2021-12-22 13:51:11 +11:00
Martin Habovstiak 779d4110c6 Fixed a bunch of clippy lints, added clippy.toml
This is the initial step towards using and maybe enforcing clippy.
It does not fix all lints as some are not applicable. They may be
explicitly ignored later.
2021-12-21 22:50:13 +01:00
Riccardo Casatta fe43e3c9d7
Merge rust-bitcoin/rust-bitcoin#710: Refactor bitcoin_merkle_root functions
b454cf8e15 Return None from merkle_root functions (Tobin Harding)
7a8b017ea3 Use correct spelling of merkle (Tobin Harding)

Pull request description:

  ~Do two minor refactorings to the `bitcoin_merkle_root[_inline] functions.~

  This PR has grown, is no longer a refactoring because the two functions have been changed to return an `Option`.

  First patch is cleanup. Here is the commit message for the second patch
  ```
  The merkle_root of an empty tree is undefined, this is the only error
  case we have for the two `bitcoin_merkle_root*` functions. We can fully
  describe this error case by returning an `Option` if args are found to
  be empty.

  While we are at it, refactor out a recursive helper function to make
  reading the code between the two functions easier.
  ```

ACKs for top commit:
  Kixunil:
    ACK b454cf8e15
  dr-orlovsky:
    ACK b454cf8e15

Tree-SHA512: 961714a8b0eb0dad493a1548317d875d64ca22d2d584c905c502369b5f6e5a9f8be1edd7345136b44964dc0bde7a4c43bfaff4287d1dbf7fd736da79818074e3
2021-12-16 09:48:29 +01:00
Riccardo Casatta e5c6d6559d
Merge rust-bitcoin/rust-bitcoin#742: add MAX_MONEY public constant to Amount
ab12410ae8 add MAX_MONEY public constant to Amount (z8674558)

Pull request description:

  Closes https://github.com/rust-bitcoin/rust-bitcoin/issues/740

ACKs for top commit:
  Kixunil:
    ACK ab12410ae8
  RCasatta:
    ACK ab12410ae8

Tree-SHA512: dfba40d8ae597d97653e13ba2ab1480822d5d75343da487e3d3e57cf6821bcc567d5a883be6fd76a3e1c7d60925fedc3a5a864789cf6370c6ebda0b1d02acdd1
2021-12-16 09:28:07 +01:00
Riccardo Casatta 970f574968
Merge rust-bitcoin/rust-bitcoin#702: Separate signature hash types
8361129518 Add SchnorrSig type (sanket1729)
94cfe79170 Rename existing SigHashType to EcdsaSigHashType (sanket1729)
648b3975a5 Add SchnorrSigHashType::from_u8 (sanket1729)
410e8bf46c Rename sighash::SigHashType::SigHashType to SchnorrSigHashType (sanket1729)
fa112a793a Add EcdsaSig (sanket1729)

Pull request description:

  Fixes #670 . Separates `SchnorrSigHashType` and `LegacySigHashType`. Also adds the following new structs:

  ```rust
  pub struct SchnorrSig {
      /// The underlying schnorr signature
      pub sig: secp256k1::schnorrsig::Signature,
      /// The corresponding hash type
      pub hash_ty: SchnorrSigHashType,
  }

  pub struct EcdsaSig {
      /// The underlying DER serialized Signature
      pub sig: secp256k1::Signature,
      /// The corresponding hash type
      pub hash_ty: LegacySigHashType,
  }
  ```

  This code is currently minimal to aid reviews. We can at a later point implement (Encodeable, psbt::Serialize, FromHex, ToHex) etc in follow-up PRs.

ACKs for top commit:
  Kixunil:
    ACK 8361129518
  RCasatta:
    ACK 8361129518

Tree-SHA512: 800ddcb3677a4f19e9d1c2a7eb7e95b0a677e9135e1e99f9e42956fc6a3fc94f639403076b4925b3adba6fdd95f56a99c2e47d0310675ad51ce5e7453c7355b6
2021-12-15 16:50:55 +01:00
sanket1729 36f3d230b8
Merge rust-bitcoin/rust-bitcoin#643: util/address: make address encoding more modular
506e03fa4d util/address: use hash functions of PublicKey/Script (Marko Bencun)
f826316c25 util/address: avoid .expect/panic (Marko Bencun)
ad83f6ae00 util/address: make address encoding more modular (Marko Bencun)

Pull request description:

  This allow library clients to plug their own encoding parameters in a
  backwards compatible manner.

Top commit has no ACKs.

Tree-SHA512: ae2ececbdfe4984fd62c975f4956686d79f6f5a6e65c34b55daa76fe785b8483ed7f35208d36b8bee545c7edd39ac878277a0fb8ea8c64a1943081e15c818bff
2021-12-15 20:17:45 +05:30
sanket1729 8361129518 Add SchnorrSig type
Export Sigs/Sigerrors
2021-12-15 20:00:52 +05:30
sanket1729 94cfe79170 Rename existing SigHashType to EcdsaSigHashType 2021-12-15 20:00:52 +05:30
sanket1729 648b3975a5 Add SchnorrSigHashType::from_u8 2021-12-15 20:00:52 +05:30
sanket1729 410e8bf46c Rename sighash::SigHashType::SigHashType to SchnorrSigHashType 2021-12-15 20:00:52 +05:30
sanket1729 fa112a793a Add EcdsaSig 2021-12-15 20:00:51 +05:30
z8674558 ab12410ae8 add MAX_MONEY public constant to Amount 2021-12-15 19:00:28 +09:00
sanket1729 b3cd308447
Merge rust-bitcoin/rust-bitcoin#743: add helpful message to division-by-zero panic
3e19983aa0 add helpful message to division-by-zero panic (z8674558)

Pull request description:

  Closes https://github.com/rust-bitcoin/rust-bitcoin/issues/739

ACKs for top commit:
  Kixunil:
    ACK 3e19983aa0
  sanket1729:
    cr ACK 3e19983aa0

Tree-SHA512: 60555da91e3c3053206b8c22c5b45f843b2f0fdfbfe46ff324c6ba49f64339447acd551991baecad2f411415f0ee7c50400df3f08465d8150bad264c50ed6c5d
2021-12-15 14:23:49 +05:30
z8674558 3e19983aa0 add helpful message to division-by-zero panic 2021-12-15 01:50:56 +09:00
sanket1729 7aacc3782a Add tests from BIP341 2021-12-12 21:49:36 +05:30
sanket1729 61629cc733 Make taproot hashes forward display 2021-12-12 21:38:17 +05:30
Dr. Maxim Orlovsky d0a87bea72 Add slice 'serialize' method for TweakedPublicKey 2021-12-12 16:24:31 +02:00
Dr. Maxim Orlovsky 37352d1df5 Add Display and LowerHex to TweakedPublicKey 2021-12-12 16:23:57 +02:00
Marko Bencun 506e03fa4d
util/address: use hash functions of PublicKey/Script
Simpler code, less duplication.
2021-12-12 13:11:15 +01:00
Marko Bencun f826316c25
util/address: avoid .expect/panic 2021-12-12 13:11:15 +01:00
Marko Bencun ad83f6ae00
util/address: make address encoding more modular
This allow library clients to plug their own encoding parameters in a
backwards compatible manner.
2021-12-12 13:10:48 +01:00
Dr. Maxim Orlovsky ed40f3d3a6
Merge rust-bitcoin/rust-bitcoin#728: Use un/tweaked public key types
b5bf6d7319 Improve rustdocs on schnorr module (Tobin Harding)
a6d3514f2b Return parity when doing tap_tweak (Tobin Harding)
7af0999745 Re-name TweakedPublicKey constructor (Tobin Harding)
3c3cf0396b Remove use of unreachable in error branch (Tobin Harding)
d8e42d153e Remove 'what' comments (Tobin Harding)
b60db79a3b Use un/tweaked public key types (Tobin Harding)
402bd993b2 Add standard derives to TweakedPublickKey (Tobin Harding)
9c015d9ce3 Add newline to end of file (Tobin Harding)

Pull request description:

  We have two types for tweaked/untweaked schnorr public keys to help users of the taproot API not mix these two keys up. Currently the `taproot` module uses 'raw' `schnoor::PublicKey`s.

  Use the `schnoor` module's tweak/untweaked public key types for the `taproot` API.

  Fixes: #725

  Please note, I saw this was labeled 'good-first-issue' but I ignored that and greedily implemented a solution because of two reasons
  1. We want to get taproot stuff done post haste.
  2. I'm struggling to follow what is going on with all the taproot work so this seemed like a way to get my hands dirty.

ACKs for top commit:
  dr-orlovsky:
    utACK b5bf6d7319
  sanket1729:
    ACK b5bf6d7319

Tree-SHA512: e3e0480e0d193877c33ac11d0e3a288b0393d9475b26056914e439cb3f19583c1936e70d048df8d2120a36a63b6b592d12e21ca3ab7e058dce6f8f873c3b598b
2021-12-12 08:31:50 +02:00
Dr. Maxim Orlovsky 9ae0f05d74
Merge rust-bitcoin/rust-bitcoin#701: Decrease Huffman Weights to u32
1518517374 Decrease Huffman weight type to 32 bits (Jeremy Rubin)

Pull request description:

  This builds on https://github.com/rust-bitcoin/rust-bitcoin/pull/699 but is the more bikesheddable part since it changes the API.

  > u32 of weight should be enough for any branch.
  -- Bill Gates

ACKs for top commit:
  dr-orlovsky:
    utACK 1518517374
  Kixunil:
    ACK 1518517374

Tree-SHA512: 9c507ae6129dda8dc069b0a142181a78cf89cb3ebf9d2169c46662822cb4ea9ed075bf484528f5399fe0ed383a425174a702e2d685f31c246f5a86c46ed17c3a
2021-12-11 22:41:16 +02:00
Tobin Harding b5bf6d7319 Improve rustdocs on schnorr module
Improve the docs by doing:

- Use [`Foo`] for types
- Use third person tense
- Add trailing periods
2021-12-10 11:46:20 +11:00
Tobin Harding a6d3514f2b Return parity when doing tap_tweak
Currently we calculate the parity during `tap_tweak` but do not return
it, this means others must re-do work done inside `tap_tweak` in order
to calculate the parity. We can just return the parity along with the
tweaked key.
2021-12-10 11:45:58 +11:00
Tobin Harding 7af0999745 Re-name TweakedPublicKey constructor
Keeping inline with the method on `UntweakedPublicKey` that outputs a
`TweakedPublicKey` we can use the same name, for the same reasons.

Use `dangerous_assume_tweaked` as the constructor name to highlight the
fact that this constructor should probably not be being used.
2021-12-10 11:45:06 +11:00
Tobin Harding 3c3cf0396b Remove use of unreachable in error branch
We currently run `tweak_add_check` and use the result as a conditional
branch, the error path of which uses `unreachable`. This usage of
`unreachable` is non-typical. An 'unreachable' statement is by
definition supposed to be unreachable, it is not clear why we would need
to have a conditional branch to check an unreachable statement.

Use `debug_assert!` so programmer errors get caught in un-optimised
builds but in optimised builds the call to `tweak_add_check` is not even
done.
2021-12-10 11:37:07 +11:00
Tobin Harding d8e42d153e Remove 'what' comments
When used, code comments should say _why_ we do something not _what_ we
do, the code already says what we do.

Remove 'what we do' style comments.
2021-12-10 11:37:07 +11:00
Tobin Harding b60db79a3b Use un/tweaked public key types
We have two types for tweaked/untweaked schnorr public keys to help
users of the taproot API not mix these two keys up. Currently the
`taproot` module uses 'raw' `schnoor::PublicKey`s.

Use the `schnoor` module's tweak/untweaked public key types for the
`taproot` API.
2021-12-10 11:37:07 +11:00
Tobin Harding 402bd993b2 Add standard derives to TweakedPublickKey
All new types in `rust-bitcoin` should use our standard set of derives.

Add said standard derives to `TweakedPublickKey`.
2021-12-10 11:37:07 +11:00
Tobin Harding 9c015d9ce3 Add newline to end of file
Idiomatic UNIX file handling leaves files with a newline at the end.

Add newline to end of `schnorr` module.
2021-12-10 11:37:07 +11:00
Tobin Harding b454cf8e15 Return None from merkle_root functions
The merkle_root of an empty tree is undefined, this is the only error
case we have for the two `bitcoin_merkle_root*` functions. We can fully
describe this error case by returning an `Option` if args are found to
be empty. We can do the same for the wrapper functions in `block`
module.

While we are at it, refactor out a recursive helper function to make
reading the code between the two functions easier.
2021-12-10 11:24:30 +11:00
Tobin Harding 7a8b017ea3 Use correct spelling of merkle
Fix typo in test function name to use the correct spelling of
'merkle' (not 'merkel').
2021-12-10 11:18:23 +11:00
Tobin Harding 628168e493 Add missing white space character 2021-12-10 10:03:15 +11:00
Dr. Maxim Orlovsky 95cf9b0a44
Merge rust-bitcoin/rust-bitcoin#697: Use TapTweakHash::from_key_and_tweak() method in computing tweak for UntweakedPublicKey
5b21a9cb1f Use TapTweakHash method for computing tweak (Noah)

Pull request description:

  Quick follow up PR to #691 using a method from #677.

  ### Changes
  - Updated `UntweakedPublicKey::tap_tweak(...)` to use `TapTweakHash::from_key_and_tweak(...)`

ACKs for top commit:
  Kixunil:
    ACK 5b21a9cb1f
  dr-orlovsky:
    utACK 5b21a9cb1f

Tree-SHA512: d00455bba51981e9ec942a6cf69672666e227850d073b1fdcd92d2eb6ad553659fb2967aec2ce12d3ed109cee5fa125cdda649cddb25404f08adae2bfd3e19bb
2021-12-02 10:43:50 +02:00
Riccardo Casatta 51b1abdab2
Merge rust-bitcoin/rust-bitcoin#719: Use expect instead of unwrap for calls to consensus_encode
e7b84e20d3 Use expect for concensus_encode on Vec (Tobin Harding)
4031fbf4ba Use expect for concensus_encode on sinks (Tobin Harding)
fa513bb5b5 Use expect for concensus_encode on engines (Tobin Harding)
a2efafcf9a Use error instead of err (Tobin Harding)

Pull request description:

  Calls to `unwrap` outside of tests are generally unfavourable. We currently call `unwrap` in a bunch of places on calls to `consensus_encode` when passing writers that do not fail.

  Remove `unwrap` calls on all calls to `consensus_encode` that pass a writer argument for which write functions do not fail. Use `expect` with a descriptive string instead.

  Fixes: #714

ACKs for top commit:
  Kixunil:
    ACK e7b84e20d3
  RCasatta:
    ACK e7b84e20d3

Tree-SHA512: 3f84598a14ecf3dcde4f418ad1a1dc5278b3ef8b2604f4e9fc4cf4e9aed8390a4a1cf0df47edb5956cc5b667d6c8864e34621c0dae974ea75d6daf1b133165dd
2021-12-01 10:57:27 +01:00
Tobin Harding e7b84e20d3 Use expect for concensus_encode on Vec
Calls to `unwrap` outside of tests are typically unfavourable.

In memory writers (`Vec`) do not error. We can use `expect` with a
descriptive message string to indicate this.
2021-11-25 10:07:25 +11:00
Tobin Harding fa513bb5b5 Use expect for concensus_encode on engines
Calls to `unwrap` outside of tests are typically unfavourable.

Hash engines do not error when calling `consensus_encode`. Instead of
the current usage of `unwrap` we can use `expect` with a descriptive
string as is done in other parts of the codebase.
2021-11-25 10:01:41 +11:00
Jeremy Rubin 1518517374 Decrease Huffman weight type to 32 bits 2021-11-24 14:55:34 -08:00
Tobin Harding a2efafcf9a Use error instead of err
In the name of uniformity use the same error message as argument to
`expect` througout the codebase.

Use "engines don't error" instead of "engines don't err".
2021-11-25 09:51:30 +11:00
Noah 5b21a9cb1f Use TapTweakHash method for computing tweak 2021-11-25 09:45:27 +11:00
Jeremy Rubin 3b968e482c Add Huffman Encoding Test 2021-11-24 12:21:55 -08:00
Dr Maxim Orlovsky 5286d0ab0c
Merge rust-bitcoin/rust-bitcoin#699: Huffman Bug Fix
f2a6827982 Fix BinaryHeap direction for Taproot Huffman Encoder (Jeremy Rubin)
cccd75d004 Fix Weighting Addition to never error on overflow + prevent overflows from ever happening with wider integers (Jeremy Rubin)

Pull request description:

  I noticed one cleanup & one bugfix while looking into the huffman algorithm:

  1) the cleanup: we can use a u128 to guarantee no overflows, and saturating_add to guarantee reasonable behavior in any case
  2) the bug: the binary heap is a max heap so the behavior ends up merging the nodes of the most likely entries repeatedly. a huffman encoder requires merging the least likely elements, so it should be reversed.

ACKs for top commit:
  sanket1729:
    ACK f2a6827982
  dr-orlovsky:
    utACK f2a6827982

Tree-SHA512: 07cadb8dd5cc2b7e6ae3ebc2c1639de054e41bcd7f3b7d338a93e77fd200c9591a89915aaae5d9f5313eff3d94032fdfe06d89fda1e2398881b711d149e9afe9
2021-11-23 19:23:03 +01:00
Dr Maxim Orlovsky d614b6c759
Merge rust-bitcoin/rust-bitcoin#704: util/address: Improve docs
822c99222d Improve constructor rustdocs for Address (Tobin Harding)
804a38cb67 Improve documentation of `WitnessVersion` (Tobin Harding)
eb8278fd2e util/address: Improve docs (Tobin Harding)

Pull request description:

  Improve documentation of the `address` module by doing:

  - Add full stops to all sentences
  - Use code ticks even inside links e.g., [`WitnessVersion`]
  - Use 100 character line length
  - Do grammar fixes
  - Use comment sections (e.g. `# Returns`)
  - Use 3rd person for function comments e.g. 'Converts foo to bar' instead of 'Convert foo to bar'
  - Use ticks for scriptPubkey

  This patch does a single file because a bunch of these changes pick an
  arbitrary stlye, if we can bikeshed on this PR then future PRs should be
  able to progress more quickly. I'll take lack of comment on any of the
  above as approval and I'll attempt to be uniform when doing the rest of
  the codebase. I plan on just chipping away at this, I can only do so
  much docs work in a day without getting bored of it :)

  Notes:

  - I didn't touch 'segwit' vs 'SegWit', seems both are widely used.
  - Using ticks inside links may be an overkill but seems more correct?
  - I'm not totally sure where the line is in the Rust ecosystem between
    readability in an editor and rendering as HTML, open to input on this.

ACKs for top commit:
  Kixunil:
    ACK 822c99222d
  dr-orlovsky:
    ACK 822c99222d

Tree-SHA512: bfbaeec74803dd0704ed3e39b9a4966db34dbb3d7ea850ed6230abf220b877687ac1479f4940b7bf39d7e8172cd62c36b232bfaa8186a92cc58b3d7e642674f6
2021-11-23 18:00:55 +01:00
Dr Maxim Orlovsky 435298c427
Merge rust-bitcoin/rust-bitcoin#707: P2tr fixes
e4774e74eb fixups to taptweaking code (sanket1729)

Pull request description:

  This was my bad for not clearly stating the expected spec #687 . Changed values to references so that we only take ownership where it is required.

  This should simplify the #697

ACKs for top commit:
  Kixunil:
    ACK e4774e74eb
  dr-orlovsky:
    utACK e4774e74eb

Tree-SHA512: adacbfa8a77f46b2c85720f3760ed12a437f40d8422731d0207662d7947c95dda79d576923f6056c77f57977a3dcd25afd270f0ee11e9c3be9d067ccdc63371a
2021-11-23 17:41:31 +01:00
Tobin Harding e04795093f Add unit test for bitcoin_merkle_root functions
We test `bitcoin_merkle_root` over in the `blockdata::block` module.
Although the `bitcoin_merkle_root` and `bitcoin_merkle_root_inline`
functions are almost identical there is enough index manipulation done
that it is not immediately obvious that the code is error free.

Add a unit test that verifies that the two functions return the same
resulting merkle root.
2021-11-22 13:03:31 +11:00