For `ecdsa` crate: MSRV is 1.73 due to a bump of `elliptic-curve` to
v0.14.0-pre.0.
This commit begins the next round of breaking changes and bumps all
crates to prerelease versions.
The main change in `signature` is an upgrade of the `digest` crate to
v0.11.0-pre.3, which is what brings the new MSRV 1.71 requirement.
Basically all of the `actions-rs/*` actions are unmaintained. See
<https://github.com/actions-rs/toolchain/issues/216> for more
information. Due to their age they generate several warnings in
CI runs.
To get rid of some of those warnings the occurrences of
`actions-rs/toolchain` are replaced by `dtolnay/rust-toolchain`,
and the occurrences of `actions-rs/cargo` are replaced by direct
invocations of `cargo`.
Since workspaces have to be bumped to MSRV 1.60 at the same time, this
also bumps the MSRV of other crates in this repo along with bumping
their version numbers to `-pre`.
Adds an initial implementation of DSA (see #8)
The following things work when tested against OpenSSL:
- The generated keys are valid and can be imported and exported from/to their DER/PEM representation
- Signatures generated by this library can be successfully verified
- Signatures can be imported and exported from/into their DER representation
- Signatures generated by OpenSSL can be successfully imported and verified
dependabot[bot]