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+# RustCrypto: Advanced Encryption Standard (AES)
+
+[![crate][crate-image]][crate-link]
+[![Docs][docs-image]][docs-link]
+![Apache2/MIT licensed][license-image]
+![Rust Version][rustc-image]
+[![Project Chat][chat-image]][chat-link]
+[![Build Status][build-image]][build-link]
+[![Downloads][downloads-image]][crate-link]
+[![HAZMAT][hazmat-image]][hazmat-link]
+
+Pure Rust implementation of the [Advanced Encryption Standard (AES)][1].
+
+This crate implements the low-level AES block function, and is intended
+for use for implementing higher-level constructions *only*. It is NOT
+intended for direct use in applications.
+
+[Documentation][docs-link]
+
+<img src="https://raw.githubusercontent.com/RustCrypto/media/85f62bb/img/block-ciphers/aes-round.svg" width="480px">
+
+## Security
+
+### ⚠️ Warning: [Hazmat!][hazmat-link]
+
+This crate does not ensure ciphertexts are authentic (i.e. by using a MAC to
+verify ciphertext integrity), which can lead to serious vulnerabilities
+if used incorrectly!
+
+To avoid this, use an [AEAD][2] mode based on AES, such as [AES-GCM][3] or [AES-GCM-SIV][4].
+See the [RustCrypto/AEADs][5] repository for more information.
+
+USE AT YOUR OWN RISK!
+
+### Notes
+
+This crate has received one [security audit by NCC Group][6], with no significant
+findings. We would like to thank [MobileCoin][7] for funding the audit.
+
+All implementations contained in the crate are designed to execute in constant
+time, either by relying on hardware intrinsics (i.e. AES-NI on x86/x86_64), or
+using a portable implementation based on bitslicing.
+
+## Minimum Supported Rust Version
+
+Rust **1.49** or higher.
+
+Minimum supported Rust version can be changed in future releases, 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
+
+## 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://img.shields.io/crates/v/aes.svg
+[crate-link]: https://crates.io/crates/aes
+[docs-image]: https://docs.rs/aes/badge.svg
+[docs-link]: https://docs.rs/aes/
+[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
+[rustc-image]: https://img.shields.io/badge/rustc-1.49+-blue.svg
+[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
+[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260039-block-ciphers
+[build-image]: https://github.com/RustCrypto/block-ciphers/workflows/aes/badge.svg?branch=master&event=push
+[build-link]: https://github.com/RustCrypto/block-ciphers/actions?query=workflow%3Aaes
+[downloads-image]: https://img.shields.io/crates/d/aes.svg
+[hazmat-image]: https://img.shields.io/badge/crypto-hazmat%E2%9A%A0-red.svg
+[hazmat-link]: https://github.com/RustCrypto/meta/blob/master/HAZMAT.md
+
+[//]: # (general links)
+
+[1]: https://en.wikipedia.org/wiki/Advanced_Encryption_Standard
+[2]: https://en.wikipedia.org/wiki/Authenticated_encryption
+[3]: https://github.com/RustCrypto/AEADs/tree/master/aes-gcm
+[4]: https://github.com/RustCrypto/AEADs/tree/master/aes-gcm-siv
+[5]: https://github.com/RustCrypto/AEADs
+[6]: https://research.nccgroup.com/2020/02/26/public-report-rustcrypto-aes-gcm-and-chacha20poly1305-implementation-review/
+[7]: https://www.mobilecoin.com/