hkdf: migrate to hmac v0.12

Author: newpavlov

.gitattributes

@@ -2,3 +2,10 @@
 members = [
     "hkdf",
 ]
+
+[patch.crates-io]
+digest = { git = "https://github.com/RustCrypto/traits/", branch = "digest/v0.10" }
+block-buffer = { git = "https://github.com/RustCrypto/utils", branch = "block-buffer/v0.10" }
+sha-1 = { git = "https://github.com/RustCrypto/hashes/", branch = "digest/v0.10.0-pre" }
+sha2 = { git = "https://github.com/RustCrypto/hashes/", branch = "digest/v0.10.0-pre" }
+hmac = { git = "https://github.com/RustCrypto/MACs/", branch = "hmac/v0.12" }

Cargo.lock

@@ -1,15 +1,19 @@
-# RustCrypto KDFs ![Rust Version][rustc-image] [![Project Chat][chat-image]][chat-link] [![dependency status][deps-image]][deps-link]
+# RustCrypto: Key Derivation Functions [![Project Chat][chat-image]][chat-link] [![dependency status][deps-image]][deps-link]
 
-Collection of key derivation functions (KDFs) written in pure Rust.
+Collection of [Key Derivation Functions][KDF] (KDF) written in pure Rust.
 
-## Crates
+## Supported Algorithms
 
-| Name   | Algorithm | Crates.io     | Documentation | Build Status |
-|--------|-----------|---------------|---------------|--------------|
-| `hkdf` | [HKDF]    | [![crates.io](https://img.shields.io/crates/v/hkdf.svg)](https://crates.io/crates/hkdf) | [![Documentation](https://docs.rs/hkdf/badge.svg)](https://docs.rs/hkdf) | [![Build](https://github.com/RustCrypto/KDFs/workflows/hkdf/badge.svg?branch=master&event=push)](https://github.com/RustCrypto/KDFs/actions?query=workflow:hkdf+branch:master)
+| Algorithm | Crate  | Crates.io     | Documentation | MSRV |
+|-----------|--------|:-------------:|:-------------:|:----:|
+| [HKDF]    | `hkdf` | [![crates.io](https://img.shields.io/crates/v/hkdf.svg)](https://crates.io/crates/hkdf) | [![Documentation](https://docs.rs/hkdf/badge.svg)](https://docs.rs/hkdf) | ![MSRV 1.41][msrv-1.41] |
 
 *NOTE: for password-based KDFs (e.g. Argon2, PBKDF2, scrypt), please see [RustCrypto/password-hashes]*
 
+### Minimum Supported Rust Version (MSRV) Policy
+
+MSRV bumps are considered breaking changes and will be performed only with minor version bump.
+
 ## License
 
 All crates licensed under either of
@@ -21,19 +25,18 @@ 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.
+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)
 
-[rustc-image]: https://img.shields.io/badge/rustc-1.41+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260043-KDFs
 [deps-image]: https://deps.rs/repo/github/RustCrypto/KDFs/status.svg
 [deps-link]: https://deps.rs/repo/github/RustCrypto/KDFs
+[msrv-1.41]: https://img.shields.io/badge/rustc-1.41.0+-blue.svg
 
 [//]: # (algorithms)
 
+[KDF]: https://en.wikipedia.org/wiki/Key_derivation_function
 [HKDF]: https://en.wikipedia.org/wiki/HKDF
 [RustCrypto/password-hashes]: https://github.com/RustCrypto/password-hashes

Cargo.toml

@@ -1,34 +1,28 @@
 [package]
 name = "hkdf"
-version = "0.11.0"
-authors = ["vladikoff", "warner", "RustCrypto Developers"]
-license = "MIT/Apache-2.0"
+version = "0.12.0" # Also update html_root_url in lib.rs when bumping this
+authors = ["RustCrypto Developers"]
+license = "MIT OR Apache-2.0"
 homepage = "https://github.com/RustCrypto/KDFs/"
 repository = "https://github.com/RustCrypto/KDFs/"
 description = "HMAC-based Extract-and-Expand Key Derivation Function (HKDF)"
-keywords = [ "HKDF", "Crypto" ]
+keywords = ["crypto", "HKDF", "KDF"]
+categories = ["cryptography", "no-std"]
 readme = "README.md"
 edition = "2018"
 
-[features]
-std = []
-
-[lib]
-name = "hkdf"
-path = "src/hkdf.rs"
-
 [dependencies]
-digest = "0.9"
-hmac = "0.11"
+hmac = "0.12"
 
 [dev-dependencies]
 blobby = "0.3"
-crypto-tests = "0.5.*"
-hex = "0.4"
-sha-1 = "0.9"
-sha2 = "0.9"
-bencher = "0.1"
+hex-literal = "0.2"
+sha-1 = { version = "0.10", default-features = false }
+sha2 = { version = "0.10", default-features = false }
 
-[[bench]]
-name = "hkdf"
-harness = false
+[features]
+std = ["hmac/std"]
+
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]