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+# RustCrypto: Digital Signature Algorithms
+
+[![crate][crate-image]][crate-link]
+[![Docs][docs-image]][docs-link]
+[![Build Status][build-image]][build-link]
+![Apache2/MIT licensed][license-image]
+![Rust Version][rustc-image]
+[![Project Chat][chat-image]][chat-link]
+
+This crate contains traits which provide generic, object-safe APIs for
+generating and verifying [digital signatures][1].
+
+Used by the [`ecdsa`][2] and [`ed25519`][3] crates, with forthcoming support
+in the [`rsa`][4] crate.
+
+See also the [Signatory][5] crate for trait wrappers for using these traits
+with many popular Rust cryptography crates, including `ed25519-dalek`, *ring*,
+`secp256k1-rs`, and `sodiumoxide`.
+
+[Documentation][docs-link]
+
+## Minimum Supported Rust Version
+
+Rust **1.56** or higher.
+
+Minimum supported Rust version can be changed in the future, but it will be
+done with a minor version bump.
+
+## SemVer Policy
+
+- All on-by-default features of this library are covered by SemVer
+- MSRV is considered exempt from SemVer as noted above
+- The off-by-default features `derive-preview` and `digest-preview` are
+ unstable "preview" features which are also considered exempt from SemVer.
+ Breaking changes to these features will, like MSRV, be done with a minor
+ version bump.
+
+## License
+
+Licensed under either of
+
+ * [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
+ * [MIT license](http://opensource.org/licenses/MIT)
+
+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.
+
+[//]: # (badges)
+
+[crate-image]: https://buildstats.info/crate/signature
+[crate-link]: https://crates.io/crates/signature
+[docs-image]: https://docs.rs/signature/badge.svg
+[docs-link]: https://docs.rs/signature/
+[build-image]: https://github.com/RustCrypto/traits/actions/workflows/signature.yml/badge.svg
+[build-link]: https://github.com/RustCrypto/traits/actions/workflows/signature.yml
+[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.56+-blue.svg
+[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
+[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260048-signatures
+
+[//]: # (general links)
+
+[1]: https://en.wikipedia.org/wiki/Digital_signature
+[2]: https://github.com/RustCrypto/signatures/tree/master/ecdsa
+[3]: https://github.com/RustCrypto/signatures/tree/master/ed25519
+[4]: https://github.com/RustCrypto/RSA
+[5]: https://docs.rs/signatory