Tony Arcieri
0993b4b343
This reverts commit a03cda2372 (#146)
Revives `RecoverableSignPrimitive` since there have been some
requests/use cases for it.
First, there was interest in supporting such a primitive for `p256`:
https://github.com/RustCrypto/elliptic-curves/pull/184
Second, it would be helpful for Ethereum, since it seems implementations
often use (HMAC-DRBG-)SHA-256 for RFC6979, but Keccak256 as the message
digest function. Exposing this interface would allow for such
combinations which aren't possible otherwise.
RustCrypto: signatures 
Support for digital signatures, which provide authentication of data using public-key cryptography.
All algorithms reside in the separate crates and implemented using traits from
the signature crate.
Crates are designed so they do not require the standard library (i.e. no_std)
and can be easily used for bare-metal or lightweight WebAssembly programming.
Crates
| Name | Algorithm | Crates.io | Documentation | Build |
|---|---|---|---|---|
ecdsa |
ECDSA |  |
 |
 |
ed25519 |
Ed25519 |  |
 |
 |
Minimum Supported Rust Version
All crates in this repository support Rust 1.41 or higher. In future minimum supported Rust version can be changed, but it will be done with the minor version bump.
Usage
Crates functionality is expressed in terms of traits defined in the signature
crate.
License
All crates licensed under either of
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.