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2024-05-14crypto: add NUMS_H constjosibake
2024-01-16Add missing XOnlyPubKey::data() to get mutable dataMarcoFalke
This is needed for consistency, and also to allow std::span construction from XOnlyPubKey.
2023-10-08pubkey: introduce a GetEvenCorrespondingCPubKey helperAntoine Poinsot
We'll need to get a compressed key out of an x-only one in other places. Avoid duplicating the code.
2023-10-04descriptors: disallow hybrid public keysPieter Wuille
The descriptor documentation (doc/descriptors.md) and BIP380 explicitly require that hex-encoded public keys start with 02 or 03 (compressed) or 04 (uncompressed). However, the current parsing/inference code permit 06 and 07 (hybrid) encoding as well. Fix this.
2023-09-07crypto: Spanify EllSwiftPubKey constructorPieter Wuille
2023-07-26Add BIP324Cipher, encapsulating key agreement, derivation, and stream/AEAD ↵Pieter Wuille
ciphers Co-authored-by: dhruv <856960+dhruv@users.noreply.github.com>
2023-06-27Use only Span{} constructor for byte-like types where possibleMarcoFalke
This removes bloat that is not needed.
2023-06-23Fuzz test for Ellswift ECDHdhruv
Co-authored-by: Pieter Wuille <bitcoin-dev@wuille.net>
2023-06-23Add ElligatorSwift key creation and ECDH logicPieter Wuille
Co-authored-by: Dhruv Mehta <856960+dhruv@users.noreply.github.com>
2023-01-13Merge bitcoin/bitcoin#26691: Update secp256k1 subtree to libsecp256k1 ↵fanquake
version 0.2.0 202291722300b86f36e97de7960d40a32544c2d1 Add secp256k1_selftest call (Pieter Wuille) 3bfca788b0dae879bfc745cc52c2cb6edc49fd70 Remove explicit enabling of default modules (Pieter Wuille) 4462cb04986d77eddcfc6e8f75e04dc278a8147a Adapt to libsecp256k1 API changes (Pieter Wuille) 9d47e7b71b2805430e8c7b43816efd225a6ccd8c Squashed 'src/secp256k1/' changes from 44c2452fd3..21ffe4b22a (Pieter Wuille) Pull request description: Now that libsecp256k1 has a release (https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-December/021271.html), update the subtree to match it. The changes themselves are not very impactful for Bitcoin Core, but include: * It's no longer needed to specify whether contexts are for signing or verification or both (all contexts support everything), so make use of that in this PR. * Verification operations can use the static context now, removing the need for some infrastructure in pubkey.cpp to make sure a context exists. * Most modules are now enabled by default, so we can drop explicit enabling for them. * CI improvements (in particular, MSVC and more recent MacOS) * Introduction of an internal int128 type, which has no effect for GCC/Clang builds, but enables 128-bit multiplication in MSVC, giving a ~20% speedup there (but still slower than GCC/Clang). * Release process changes (process documentation, changelog, ...). ACKs for top commit: Sjors: ACK 202291722300b86f36e97de7960d40a32544c2d1, but 4462cb04986d77eddcfc6e8f75e04dc278a8147a could use more eyes on it. achow101: ACK 202291722300b86f36e97de7960d40a32544c2d1 jonasnick: utACK 202291722300b86f36e97de7960d40a32544c2d1 Tree-SHA512: 8a9fe28852abe74abd6f96fef16a94d5a427b1d99bff4caab1699014d24698aab9b966a5364a46ed1001c07a7c1d825154ed4e6557c7decce952b77330a8616b
2022-12-24scripted-diff: Bump copyright headersHennadii Stepanov
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT- Commits of previous years: - 2021: f47dda2c58b5d8d623e0e7ff4e74bc352dfa83d7 - 2020: fa0074e2d82928016a43ca408717154a1c70a4db - 2019: aaaaad6ac95b402fe18d019d67897ced6b316ee0
2022-12-13Adapt to libsecp256k1 API changesPieter Wuille
* Use SECP256K1_CONTEXT_NONE when creating signing context, as SECP256K1_CONTEXT_SIGN is deprecated and unnecessary. * Use secp256k1_static_context where applicable.
2022-08-04(pubk)key: mark Derive() as nodiscardAntoine Poinsot
2022-06-27Add serialization methods to XOnlyPubKeyAndrew Chow
It is useful to have serialzation methods for XOnlyPubKey. These will serialize the internal uint256, so it is not prefixed with the length as CPubKey does.
2022-01-02Use spans of std::byte in serializeMarcoFalke
This switches .read() and .write() to take spans of bytes.
2021-12-30scripted-diff: Bump copyright headersHennadii Stepanov
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT- Commits of previous years: * 2020: fa0074e2d82928016a43ca408717154a1c70a4db * 2019: aaaaad6ac95b402fe18d019d67897ced6b316ee0
2021-12-10Implement operator< for KeyOriginInfo and CExtPubKeyAndrew Chow
2021-12-10Store version bytes and be able to serialize them in CExtPubKeyAndrew Chow
CExtPubKey does not store the version bytes for the extended public key. We store these so that a CExtPubKey can be serialized and deserialized with the same version bytes.
2021-11-29More Span simplificationsPieter Wuille
Based on suggestions by MarcoFalke <falke.marco@gmail.com>
2021-11-29Replace MakeSpan helper with Span deduction guidePieter Wuille
2021-11-24Merge bitcoin/bitcoin#23451: span: Add std::byte helpersMarcoFalke
faa3ec2304051be7cfbe301cfbfbda3faf7514fc span: Add std::byte helpers (MarcoFalke) fa18038f519db76befb9a7bd0b1540143bfeb12b refactor: Use ignore helper when unserializing an invalid pubkey (MarcoFalke) fabe18d0b39b4b918bf60e3a313eaa36fb4067f2 Use value_type in CDataStream where possible (MarcoFalke) Pull request description: This adds (currently unused) span std::byte helpers, so that they can be used in new code. The refactors are also required for https://github.com/bitcoin/bitcoin/pull/23438, but they are split up because the other pull doesn't compile with msvc right now. The third commit is not needed for the other pull, but still nice. ACKs for top commit: klementtan: reACK faa3ec2. Verified that all the new `std::byte` helper functions are tested. laanwj: Code review ACK faa3ec2304051be7cfbe301cfbfbda3faf7514fc Tree-SHA512: b1f6af39f03ea4dfebf20d4a8538fa993a6104e7fc92ddf0c4606a7efc3ca9a8c1a4741d98a1418569c11bb9ce9258bf0c0c06d93d85ed7e208902a2db04e407
2021-11-09refactor: Use ignore helper when unserializing an invalid pubkeyMarcoFalke
2021-11-09fix `XOnlyPubKey::IsFullyValid` comment referenceSebastian Falbesoner
The method name `CreatePayToContract` doesn't exist, very likely it was a (local) working title that was renamed to `CreateTapTweak` later. Also mention `CheckTapTweak`.
2021-08-23Consolidate XOnlyPubKey lookup hackAndrew Chow
The places where we need to lookup information for a XOnlyPubKey currently implement a hack which makes both serializations of the full pubkey in order to try the CKeyIDs for the lookup functions. Instead of duplicating this everywhere it is needed, we can consolidate the CKeyID generation into a function, and then have wrappers around GetPubKey, GetKey, and GetKeyOrigin which takes the XOnlyPubKey, retrieves all of the CKeyIDs (using the new GetKeyIDs() function in XOnlyPubKey), and tries their respective underlying lookup function.
2021-06-12Add CKey::SignSchnorr function for BIP 340/341 signingPieter Wuille
2021-06-12Add TaprootSpendData data structure, equivalent to script map for P2[W]SHPieter Wuille
This data structures stores all information necessary for spending a taproot output (the internal key, the Merkle root, and the control blocks for every script leaf). It is added to signing providers, and populated by the tr() descriptor.
2021-05-24Add tr() descriptor (derivation only, no signing)Pieter Wuille
This adds a new descriptor with syntax e.g. tr(KEY,{S1,{{S2,S3},S4}) where KEY is a key expression for the internal key and S_i are script expression for the leaves. They have to be organized in nested {A,B} groups, with exactly two elements. tr() only exists at the top level, and inside the script expressions only pk() scripts are allowed for now.
2021-05-24Add TaprootBuilder classPieter Wuille
This class functions as a utility for building taproot outputs, from internal key and script leaves.
2021-05-24Add XOnlyPubKey::CreateTapTweakPieter Wuille
2021-05-24Make consensus checking of tweaks in pubkey.* Taproot-specificPieter Wuille
That results in a much safer interface (making the tweak commit to the key implicitly using a fixed tag means it can't be used for unrelated tweaking).
2021-05-24Make XOnlyPubKey act like byte containerPieter Wuille
2021-05-10Merge bitcoin/bitcoin#21745: refactor: Add missing includes in ↵W. J. van der Laan
pubkey.cpp/pubkey.h 71c824ed6cf70b39ca09e8b3962f452f69523af0 cleaned up and added missing "include" statements for pubkey.cpp and pubkey.h (William Bright) Pull request description: #### Problem: Many symbols in the files were undefined and causing issues when I was working on building independent sections of the codebase. The hidden imports from the "secp256k1" library was a particular pain point. The other standard and missing includes are following best practices and will help with refactoring, build process and others. #### Changes: Clean up and declared imports/include for `pubkey.cpp` and `pubkey.h` ACKs for top commit: jnewbery: utACK 71c824ed6c laanwj: Code review ACK 71c824ed6cf70b39ca09e8b3962f452f69523af0 Tree-SHA512: bce605cfde24d8e3be82a596cabab7a8577fec0aef7c5e6f7a56603357046d8e8dea11ac8e3dbe79600550291be7784e35c7a55ebf40b46525b8949e4bedae96
2021-05-04refactor: Avoid &foo[0] on C-Style arraysMarcoFalke
This is confusing at best when parts of a class use the redundant operators and other parts do not.
2021-05-04refactor: Use CPubKey vector constructor where possibleMarcoFalke
2021-04-22cleaned up and added missing "include" statements for pubkey.cpp and pubkey.hWilliam Bright
removed comments next to include statements. removed comments in include statements. changed assert.h to cassert based on pr comments
2020-12-31scripted-diff: Bump copyright headersMarcoFalke
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
2020-12-01refactor: Improve use of explicit keywordFabian Jahr
2020-11-26Add comments on CPubKey::IsValidPieter Wuille
2020-10-12Implement Taproot validation (BIP 341)Pieter Wuille
This includes key path spending and script path spending, but not the Tapscript execution implementation (leaf 0xc0 remains unemcumbered in this commit). Includes constants for various aspects of the consensus rules suggested by Jeremy Rubin.
2020-10-12Support for Schnorr signatures and integration in SignatureCheckers (BIP 340)Pieter Wuille
This enables the schnorrsig module in libsecp256k1, adds the relevant types and functions to src/pubkey, as well as in higher-level `SignatureChecker` classes. The (verification side of the) BIP340 test vectors is also added.
2020-10-06scripted-diff: put ECDSA in name of signature functionsPieter Wuille
In preparation for adding Schnorr versions of `CheckSig`, `VerifySignature`, and `ComputeEntry`, give them an ECDSA specific name. -BEGIN VERIFY SCRIPT- sed -i 's/CheckSig(/CheckECDSASignature(/g' $(git grep -l CheckSig ./src) sed -i 's/VerifySignature(/VerifyECDSASignature(/g' $(git grep -l VerifySignature ./src) sed -i 's/ComputeEntry(/ComputeEntryECDSA(/g' $(git grep -l ComputeEntry ./src) -END VERIFY SCRIPT-
2020-07-30Make Hash[160] consume range-like objectsPieter Wuille
2020-06-10Check size after Unserializing CPubKeyElichai Turkel
2020-04-23Implement TopUp in DescriptorScriptPubKeyManAndrew Chow
2019-12-30scripted-diff: Bump copyright of files changed in 2019MarcoFalke
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
2019-11-20Merge #12461: scripted-diff: Rename key size consts to be relative to their ↵Wladimir J. van der Laan
class 0580f86bb48004b797d4cb6273e7ffee0b0a0584 Fixup whitespace (Ben Woosley) 47101bbb27d0e13ea2b40ce1c7ff0dba9030f369 scripted-diff: Rename CPubKey and CKey::*_KEY_SIZE and COMPRESSED_*_KEY_SIZE (Ben Woosley) Pull request description: ~~And introduce CPubKeySig to host code relative to key sigs.~~ ACKs for top commit: meshcollider: utACK https://github.com/bitcoin/bitcoin/pull/12461/commits/0580f86bb48004b797d4cb6273e7ffee0b0a0584 Tree-SHA512: 29aa0be54912358b138e391b9db78639786f56580493e590ec9f773c0e1b421740133d05a79be247c7ee57e71c9c9e41b9cb54088cb3c0e3f813f74f0895287b
2019-10-22refactor: Remove unused CExt{Pub,}Key (de)serialization methodsSebastian Falbesoner
The serialization/deserialization methods for the classes CExtKey and CExtPubKey were only used in the BIP32 unit tests, where the relevant parts are removed as well.
2019-03-04Fixup whitespaceBen Woosley
2019-03-04scripted-diff: Rename CPubKey and CKey::*_KEY_SIZE and COMPRESSED_*_KEY_SIZEBen Woosley
To SIZE and COMPRESSED_SIZE -BEGIN VERIFY SCRIPT- sed -i 's/PRIVATE_KEY_SIZE/SIZE/g' src/*.h src/*.cpp src/**/*.h src/**/*.cpp sed -i 's/COMPRESSED_PRIVATE_KEY_SIZE/COMPRESSED_SIZE/g' src/*.h src/**/*.cpp src/**/*.h src/**/*.cpp sed -i 's/PUBLIC_KEY_SIZE/SIZE/g' src/*.h src/*.cpp src/**/*.h src/**/*.cpp sed -i 's/COMPRESSED_PUBLIC_KEY_SIZE/COMPRESSED_SIZE/g' src/*.h src/*.cpp src/**/*.h src/**/*.cpp -END VERIFY SCRIPT-
2018-07-27Update copyright headers to 2018DrahtBot
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