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+# [RustCrypto]: Cryptographic Big Integers
+
+[![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]
+
+Pure Rust implementation of a big integer library which has been designed from
+the ground-up for use in cryptographic applications.
+
+Provides constant-time, `no_std`-friendly implementations of modern formulas
+using const generics.
+
+[Documentation][docs-link]
+
+## Goals
+
+- No heap allocations. `no_std`-friendly.
+- Constant-time by default. Variable-time functions are explicitly marked as such.
+- Leverage what is possible today with const generics on `stable` rust.
+- Support `const fn` as much as possible, including decoding big integers from
+  bytes/hex and performing arithmetic operations on them, with the goal of
+  being able to compute values at compile-time.
+
+## Minimum Supported Rust Version
+
+This crate requires **Rust 1.57** at a minimum.
+
+We may change the MSRV in the future, but it will be accompanied by 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/crypto-bigint
+[crate-link]: https://crates.io/crates/crypto-bigint
+[docs-image]: https://docs.rs/crypto-bigint/badge.svg
+[docs-link]: https://docs.rs/crypto-bigint/
+[build-image]: https://github.com/RustCrypto/crypto-bigint/actions/workflows/crypto-bigint.yml/badge.svg
+[build-link]: https://github.com/RustCrypto/crypto-bigint/actions/workflows/crypto-bigint.yml
+[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.57+-blue.svg
+[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
+[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/300602-crypto-bigint
+
+[//]: # (links)
+
+[RustCrypto]: https://github.com/rustcrypto