rust-bitcoin

This commit adds new ways to print ECDSA Bitcoin signatures as hexadecimal text (lowercase and uppercase), matching formatting already available for Taproot signatures. It also makes the existing Display implementation reuse the new LowerHex implementation. There is no security fix or behavior change that affects signatures themselves—only how they look when formatted as text.

This commit fixes a formatting bug in how Bitcoin ECDSA signatures are printed as text. Previously, the signature was printed in two separate pieces (the DER-encoded signature and the sighash byte), which could mishandle formatting options like width or precision. Now it prints a single pre-serialized object, so formatting behaves consistently. This is a correctness bug, not a cryptographic vulnerability, and there is no evidence it enables code execution or theft of funds.

This commit simply adds standard sorting traits (PartialOrd and Ord) to an ECDSA signature type and its associated sighash type, matching what already exists for similar types. There is no indication this fixes or introduces a security problem.

This commit is a routine API cleanup, not a security fix. It removes a helper trait called PrivateKeyExt and hides a low-level accessor method (as_inner) that exposes the underlying secret key object. The same signing behavior is preserved inside the crate, just with less public surface area. There is no patch for an active vulnerability.

This commit removes a deprecated type alias named `DerivationError` from the public API, replacing it with the already-existing `DeriveXpubError`. It is a straightforward cleanup with no functional code changes and no security implications.

This commit is a pure code-style change. It reorders the implementation blocks for several error types in a Bitcoin-related Rust library so that the order of traits (From, std::error::Error, Display, helper methods) is consistent. No logic, behavior, or security properties of the code are changed.

This commit is a code cleanup: it splits one big error type into several smaller, more specific error types for BIP-32 extended key parsing. It does not change what the code accepts or rejects, only how errors are named and organized. There is no security fix here.

This commit removes old serialization/deserialization trait implementations (called Encodable and Decodable) from many Bitcoin data types in the rust-bitcoin library. It is described by the project as a cleanup step toward replacing the old consensus encoding code. There is no indication in the commit or supplied references that this fixes a security vulnerability; it appears to be a routine internal refactor.

This commit is a routine internal test refactor. It swaps one test-only helper for another so that a unit test can still decode hex transaction data after an older helper is removed. There is no change to production code or to how real transactions are handled.

This commit only changes test code and documentation examples in the rust-bitcoin library. It replaces older consensus encoding/decoding helper functions with newer equivalents from a different internal module. There is no change to production code, no bug fix, and no security-relevant behavior change.

This commit swaps out an older Bitcoin data-encoding system for a newer one across six files. It is a routine internal refactoring change. There is no direct evidence in the commit that it fixes a security vulnerability, but any encoding change in consensus-critical code carries a small risk that a subtle behavior difference could affect transaction or block validation. The commit message and diff do not describe any security issue or credit a researcher.

This commit adds a new convenience method, XOnlyPublicKey::verify, that lets users verify Schnorr (taproot) signatures without calling the underlying secp256k1 library directly. It is a straightforward API addition with no obvious security bug; it simply wraps the existing, well-tested secp256k1 Schnorr verification routine.

This commit is a routine code reorganization. It moves the TapTweak trait and its implementations from the main bitcoin crate into a smaller taproot-primitives crate. The actual logic for tweaking Taproot keys is copied unchanged; only its location in the codebase changes. There is no security bug being fixed or introduced.

This commit is a routine performance and code-quality refactor. It replaces dynamically-dispatched formatter parameters with concrete Rust formatter types so the compiler can inline the code. There is no security-relevant change: no new inputs are accepted, no validation logic changes, and no sensitive data handling is altered.

This commit only adds new unit tests to verify that a previously changed function, Target::from_compact, returns zero when a Bitcoin 'compact' difficulty value overflows a 256-bit target. It does not change any production code. The tests confirm the overflow behavior and check values right at the overflow boundary.

This commit fixes a bug in how rust-bitcoin converts Bitcoin 'compact' difficulty targets into full numeric Target values. Previously, if the compact value encoded a number too large to fit in a valid Target, the code would silently produce a truncated/wrapped result instead of treating it as invalid. The fix makes overflow behave like an invalid negative mantissa: return zero. This aligns the library with Bitcoin Core's consensus behavior, reducing the risk of consensus divergence or incorrect difficulty calculations.

This commit fixes a bug in how the library counts 'signature operations' (sigops) in Bitcoin scripts. A small cache that remembers recently pushed numbers was not being cleared after signature-checking opcodes. This could cause a later multi-signature operation to incorrectly reuse a stale number, making the sigop count too low or too high in edge cases. The fix resets the cache whenever a signature opcode is seen, matching Bitcoin Core's consensus behavior.

This commit is a routine internal code reorganization. It moves a helper function that computes a Taproot tweak hash from one module to another and removes an extension trait that was only used to attach that function. There is no security fix or behavior change visible in the diff.

This commit is a code cleanup (refactor) that splits one combined error type into two separate error types for parsing BIP32 derivation paths. It does not change the actual parsing rules or fix any security bug. It only changes how error messages are categorized internally, making the API clearer for developers. There is no indication this addresses a vulnerability.

This commit is a code cleanup in the rust-bitcoin library. It splits one general BIP32 derivation error type into several more specific error types and renames the old one. It does not change how keys are actually derived or add any new security behavior; it only changes how error conditions are named and reported to programmers.

This is a routine code cleanup change. It replaces an internal helper macro that generated `to_hex` methods with manually-written, equivalent `to_hex` methods that are marked as deprecated. The public API behavior stays the same; callers will just receive a deprecation warning encouraging them to use Rust's standard `format!("{var:x}")` instead. There is no security fix or vulnerability here.

This commit is a routine code reorganization. It moves a Rust macro called impl_array_newtype from one internal location to a shared include file and updates call sites to use the new location. No behavior changes, bug fixes, or security fixes are visible in the diff.

This commit only adds a new regression test. It does not change any production code. The test checks that a function called from_base64 correctly rejects base64 inputs that decode to fewer or more than 65 bytes. Because no actual fix is included in this commit, the commit itself does not introduce or remove a security vulnerability; it merely adds a test to help catch the bug in the future.

This commit fixes a bug where displaying a specific error message in Bitcoin address parsing could cause the program to crash with a stack overflow. The crash only happens in 'no_std' builds (a special configuration without the standard library). The fix replaces an incorrect macro with the correct one so the error message is shown without trying to endlessly include itself as its own source.

This commit is an automated code-formatting run by rustfmt. It only reorders import/use statements in two files without changing any program logic, behavior, or security properties.