- Update MSRV to 1.29.0
- Add feature-gated
bitcoin_hashes
dependency andThirtyTwoByteHash
trait - Add feature-gated global static context
- Allow all-zero messages to be constructed
- Bump rust-secp-sys to 0.2.0
- Fix linking in the
fuzztarget
feature.
- Correctly prefix the secp256k1-sys links field in Cargo.toml.
- Move FFI into secp256k1-sys crate.
- Add
external-symbols
feature for not building upstream. - Add functions to create a context from a raw pointer.
- Support passing custom hash functions to ECDH.
- Wrap Secp256k1 from raw context in a ManuallyDrop.
- Add
rand-std
feature. - Pin the cc build-dep version to
< 1.0.42
to remain compatible with rustc 1.22.0. - Changed all
as_*ptr()
to a new saferCPtr
trait
- Add feature
lowmemory
that reduces the EC mult window size to require significantly less memory for the validation context (~680B instead of ~520kB), at the cost of slower validation. It does not affect the speed of signing, nor the size of the signing context.
- Implement hex human-readable serde for PublicKey
- Implement fmt::LowerHex for SecretKey and PublicKey
- Relax
cc
dependency requirements - Add links manifest key to prevent cross-version linkage
- Implemented FFI functions:
secp256k1_context_create
andsecp256k1_context_destroy
in rust.
- Feature-gate endormorphism optimization because of a lack of clarity with respect to patents
- Got full no-std support including eliminating all use of libc in C bindings. PR 1 PR 2. This library should be usable in bare-metal environments and with rust-wasm. Thanks to Elichai Turkel for driving this forward!
- Update upstream libsecp256k1 version to 143dc6e9ee31852a60321b23eea407d2006171da
- Update minimum supported rust compiler 1.22.
- Replace
serialize_der
function withSerializedSignature
struct. - Allow building without a standard library (
no_std
).std
feature is on by default. - Add human readable serialization to
Signatures
andSecretKeys
. - Stop displaying 0 bytes if a
Signature
is less than 72 bytes. - Only compile recovery module if feature
recovery
is set (non-default). - Update
rand
dependency from 0.4 to 0.6 and addrand_core
0.4 dependency. - Relax
cc
dependency requirements.
- Fuzzer bug fix
- Minor bug fixes
- Fixed
cc
crate version to maintain minimum compiler version without breakage - Removed
libc
dependency as it our uses have been subsumed into stdlib
- Overhaul API to remove context object when no precomputation is needed
- Add
ThirtyTwoByteHash
trait which allows infallible conversions toMessage
s - Disallow 0-valued
Message
objects since signatures on them are forgeable for all keys - Remove
ops::Index
implementations forSignature
- Remove depecated constants and unsafe
ZERO_KEY
constant
- Use
pub extern crate
to export dependencies whose types are exported
- Add
FromStr
andDisplay
forSignature
and both key types - Fix
build.rs
for Windows and rustfmt configuration for docs.rs - Correct endianness issue for
Signature
Debug
output
- No changes, just fixed docs.rs configuration
- Correct endianness issue in RFC6979 nonce generation
- Put
PublicKey::combine
back because it is currently needed to implement Lightning BOLT 3
- Update
rand
to 0.4 andgcc
0.3 tocc
1.0. (rand
0.5 exists but has a lot of breaking changes and no longer compiles with 1.14.0.) - Remove
PublicKey::combine
from API since it cannot be used with anything else in the API - Detect whether 64-bit compilation is possible, and do it if we can (big performance improvement)
- A complete API overhaul to move many runtime errors into compiletime errors
- Update libsecp256k1 to
1e6f1f5ad5e7f1e3ef79313ec02023902bf8
. Should be no visible changes. - Remove
PublicKey::new()
andPublicKey::is_valid()
sincenew
was unsafe and it should now be impossible to create invalidPublicKey
objects through the API - Reintroduce serde support behind a feature gate using serde 1.0
- Clean up build process and various typos