mirror of
https://github.com/bitcoin/bips.git
synced 2026-11-09 19:47:16 +00:00
Fabian Jahr
1eb496599c
Add a vendored copy of the secp256k1lab library (master branch, commit a265da139aea27386085a2a8760f8698e1bda64e) that the half-aggregation reference implementation and test vector scripts depend on.
26 lines
1.2 KiB
Markdown
26 lines
1.2 KiB
Markdown
# Changelog
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All notable changes to this project will be documented in this file.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [Unreleased]
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#### Added
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- Added new methods `Scalar.from_int_nonzero_checked` and `Scalar.from_bytes_nonzero_checked`
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that ensure a constructed scalar is in the range `0 < s < N` (i.e. is non-zero and within the
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group order) and throw a `ValueError` otherwise. This is e.g. useful for ensuring that newly
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generated secret keys or nonces are valid without having to do the non-zero check manually.
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The already existing methods `Scalar.from_int_checked` and `Scalar.from_bytes_checked` error
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on overflow, but not on zero, i.e. they only ensure `0 <= s < N`.
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- Added a new method `GE.from_bytes_compressed_with_infinity` to parse a compressed
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public key (33 bytes) to a group element, where the all-zeros bytestring maps to the
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point at infinity. This is the counterpart to the already existing serialization
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method `GE.to_bytes_compressed_with_infinity`.
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## [1.0.0] - 2025-03-31
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Initial release.
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