Merging upstream version 1.70.0+dfsg2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

21 files changed, 1037 insertions, 0 deletions

diff --git a/vendor/hmac/.cargo-checksum.json b/vendor/hmac/.cargo-checksum.json
new file mode 100644
index 000000000..ade558309
--- /dev/null
+++ b/vendor/hmac/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"CHANGELOG.md":"9475fa89d1ca3bf8780d4eb95fc23fcf9e46bc80745136caf858cbe1a56da7bb","Cargo.toml":"b56253cfaec8c49b49ce90736dde78025f0b820f2a018edff569bba27e5a5080","LICENSE-APACHE":"a9040321c3712d8fd0b09cf52b17445de04a23a10165049ae187cd39e5c86be5","LICENSE-MIT":"9e0dfd2dd4173a530e238cb6adb37aa78c34c6bc7444e0e10c1ab5d8881f63ba","README.md":"d0b99c8c2b5a15bfa1315b2160fec26b9b59b4e5f242ed046b61474351520e82","src/lib.rs":"66ba692fd324d2b9d0fbb55ab96e978a2a72cc3bae7fc9efb14bba5534e79a16","src/optim.rs":"3c16b46effd4980cd2e98b5b2090aa57049dc9d4a9ea1c87e758875bf1ab0b63","src/simple.rs":"160abf6a160f606185d18ac15984b7e0eb6662f43588539d9533b7cb1b016cca","tests/data/md5.blb":"41f33f80dbc25391a47c474432362597a4ed1b45bae3a1b817fa8b5d7548dad7","tests/data/sha224.blb":"d5428cdd466e35fd954da1b8c5a222e9e3f37aaebb8c16a3c4204272bfd1dbfe","tests/data/sha256.blb":"98d4a64debfda8e232490cd464353d083fdf252333cca139d5379b5fd568b1a9","tests/data/sha384.blb":"35c0ef0537ad23aba89a2943e4a62c650af5d5c695ab9084c792149535f5e6ee","tests/data/sha512.blb":"cd881eab93b8bb07b892cf8a676673a48170f63db9c21b43b6e73f0d1b5b363f","tests/data/streebog256.blb":"66df5c6eb5aba37cfa0cc5a059d2ffa2ba6af6aead3b2bfe3122aae11bc7ea0c","tests/data/streebog512.blb":"13d5b55d89e2c7782db965ed779b67838acf5b09dbb4f3332fed146471c90ee4","tests/data/wycheproof-sha1.blb":"8c364fb223c563d75d4b49ac4af582c92a9cb5dbca25af345b98b6122aa6aa40","tests/data/wycheproof-sha256.blb":"9855ca5a11de9a95024084e6999764de48ed3dee1bd445d7aebf7e72c379d62a","tests/data/wycheproof-sha384.blb":"a39b0e05cf9a47651722f0afe6294db053ad542dc5bd598271a358e884e771cc","tests/data/wycheproof-sha512.blb":"0329587a988335059c956a1bd62ac55c727749a6482f0eeb2e0d0954f2582462","tests/mod.rs":"27941c34466ba4fe43e7e1c6118cbf2f5c854d79c53b7d73a77636328bf7146e"},"package":"6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"}
\ No newline at end of file
diff --git a/vendor/hmac/CHANGELOG.md b/vendor/hmac/CHANGELOG.md
new file mode 100644
index 000000000..2569cc511
--- /dev/null
+++ b/vendor/hmac/CHANGELOG.md
@@ -0,0 +1,97 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## 0.12.1 (2022-02-17)
+### Fixed
+- Minimal versions build ([#108])
+
+[#108]: https://github.com/RustCrypto/MACs/pull/108
+
+## 0.12.0 (2021-12-07)
+### Changed
+- Bump `digest` crate dependency to v0.10 and remove `crypto-mac` ([#97])
+- Use a more efficient state representation by using block-level hash API ([#97])
+
+### Added
+- `SimpleHmac` as a less constrained alternative to `Hmac` ([#97])
+
+[#97]: https://github.com/RustCrypto/MACs/pull/97
+
+## 0.11.0 (2021-04-29)
+### Changed
+- Bump `crypto-mac` crate dependency to v0.11 ([#73])
+
+[#73]: https://github.com/RustCrypto/MACs/pull/73
+
+## 0.10.1 (2020-10-16)
+### Added
+- Zulip badge ([#64])
+
+[#64]: https://github.com/RustCrypto/MACs/pull/64
+
+## 0.10.0 (2020-10-16)
+### Changed
+- Bump `crypto-mac` dependency to v0.10 ([#62])
+
+[#62]: https://github.com/RustCrypto/MACs/pull/62
+
+## 0.9.0 (2020-08-12)
+### Changed
+- Bump `crypto-mac` dependency to v0.9 ([#57])
+
+### Added
+- Implement `io::Write` ([#55])
+
+[#55]: https://github.com/RustCrypto/MACs/pull/55
+[#57]: https://github.com/RustCrypto/MACs/pull/57
+
+## 0.8.1 (2020-06-24)
+### Fixed
+- Replace outdated `code` with `into_bytes` in documentation ([#50])
+
+[#50]: https://github.com/RustCrypto/MACs/pull/50
+
+## 0.8.0 (2020-06-09)
+### Changed
+- Upgrade to `digest` v0.9 crate release; MSRV 1.41 ([#45])
+- Upgrade `crypto-mac` to v0.8 ([#33])
+- Rename `*result*` to `finalize` ([#38])
+- Upgrade to Rust 2018 edition  ([#33])
+
+[#45]: https://github.com/RustCrypto/MACs/pull/45
+[#38]: https://github.com/RustCrypto/MACs/pull/38
+[#33]: https://github.com/RustCrypto/MACs/pull/33
+
+## 0.7.1 (2019-07-11)
+
+## 0.7.0 (2018-10-03)
+
+## 0.6.3 (2018-08-15)
+
+## 0.6.2 (2018-04-15)
+
+## 0.6.1 (2018-04-05)
+
+## 0.6.0 (2018-03-30)
+
+## 0.5.0 (2017-11-15)
+
+## 0.4.2 (2017-07-24)
+
+## 0.4.1 (2017-07-24)
+
+## 0.4.0 (2017-07-24)
+
+## 0.3.1 (2017-06-12)
+
+## 0.1.2 (2017-07-24)
+
+## 0.1.1 (2017-05-14)
+
+## 0.1.0 (2017-05-14)
+
+## 0.0.1 (2016-10-21)
diff --git a/vendor/hmac/Cargo.toml b/vendor/hmac/Cargo.toml
new file mode 100644
index 000000000..ca1c001a3
--- /dev/null
+++ b/vendor/hmac/Cargo.toml
@@ -0,0 +1,55 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2018"
+name = "hmac"
+version = "0.12.1"
+authors = ["RustCrypto Developers"]
+description = "Generic implementation of Hash-based Message Authentication Code (HMAC)"
+documentation = "https://docs.rs/hmac"
+readme = "README.md"
+keywords = ["crypto", "mac", "hmac", "digest"]
+categories = ["cryptography", "no-std"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/RustCrypto/MACs"
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]
+[dependencies.digest]
+version = "0.10.3"
+features = ["mac"]
+[dev-dependencies.digest]
+version = "0.10"
+features = ["dev"]
+
+[dev-dependencies.hex-literal]
+version = "0.2.2"
+
+[dev-dependencies.md-5]
+version = "0.10"
+default-features = false
+
+[dev-dependencies.sha-1]
+version = "0.10"
+default-features = false
+
+[dev-dependencies.sha2]
+version = "0.10"
+default-features = false
+
+[dev-dependencies.streebog]
+version = "0.10"
+default-features = false
+
+[features]
+reset = []
+std = ["digest/std"]
diff --git a/vendor/hmac/LICENSE-APACHE b/vendor/hmac/LICENSE-APACHE
new file mode 100644
index 000000000..78173fa2e
--- /dev/null
+++ b/vendor/hmac/LICENSE-APACHE
@@ -0,0 +1,201 @@
+                              Apache License
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diff --git a/vendor/hmac/LICENSE-MIT b/vendor/hmac/LICENSE-MIT
new file mode 100644
index 000000000..8dcb85b30
--- /dev/null
+++ b/vendor/hmac/LICENSE-MIT
@@ -0,0 +1,25 @@
+Copyright (c) 2017 Artyom Pavlov
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
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+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/vendor/hmac/README.md b/vendor/hmac/README.md
new file mode 100644
index 000000000..52d4ef968
--- /dev/null
+++ b/vendor/hmac/README.md
@@ -0,0 +1,53 @@
+# RustCrypto: HMAC
+
+[![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]
+
+Pure Rust implementation of the [Hash-based Message Authentication Code (HMAC)][1].
+
+[Documentation][docs-link]
+
+## Minimum Supported Rust Version
+
+Rust **1.41** 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
+
+## 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/hmac.svg
+[crate-link]: https://crates.io/crates/hmac
+[docs-image]: https://docs.rs/hmac/badge.svg
+[docs-link]: https://docs.rs/hmac/
+[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
+[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/260044-MACs
+
+[//]: # (general links)
+
+[1]: https://en.wikipedia.org/wiki/HMAC
diff --git a/vendor/hmac/src/lib.rs b/vendor/hmac/src/lib.rs
new file mode 100644
index 000000000..e79c068d8
--- /dev/null
+++ b/vendor/hmac/src/lib.rs
@@ -0,0 +1,131 @@
+//! Generic implementation of Hash-based Message Authentication Code (HMAC).
+//!
+//! To use it you will need a cryptographic hash function implementation which
+//! implements the [`digest`] crate traits. You can find compatible crates
+//! (e.g. [`sha2`]) in the [`RustCrypto/hashes`] repository.
+//!
+//! This crate provides two HMAC implementation [`Hmac`] and [`SimpleHmac`].
+//! The first one is a buffered wrapper around block-level [`HmacCore`].
+//! Internally it uses efficient state representation, but works only with
+//! hash functions which expose block-level API and consume blocks eagerly
+//! (e.g. it will not work with the BLAKE2 family of  hash functions).
+//! On the other hand, [`SimpleHmac`] is a bit less efficient memory-wise,
+//! but works with all hash functions which implement the [`Digest`] trait.
+//!
+//! # Examples
+//! Let us demonstrate how to use HMAC using the SHA-256 hash function.
+//!
+//! In the following examples [`Hmac`] is interchangeable with [`SimpleHmac`].
+//!
+//! To get authentication code:
+//!
+//! ```rust
+//! use sha2::Sha256;
+//! use hmac::{Hmac, Mac};
+//! use hex_literal::hex;
+//!
+//! // Create alias for HMAC-SHA256
+//! type HmacSha256 = Hmac<Sha256>;
+//!
+//! let mut mac = HmacSha256::new_from_slice(b"my secret and secure key")
+//!     .expect("HMAC can take key of any size");
+//! mac.update(b"input message");
+//!
+//! // `result` has type `CtOutput` which is a thin wrapper around array of
+//! // bytes for providing constant time equality check
+//! let result = mac.finalize();
+//! // To get underlying array use `into_bytes`, but be careful, since
+//! // incorrect use of the code value may permit timing attacks which defeats
+//! // the security provided by the `CtOutput`
+//! let code_bytes = result.into_bytes();
+//! let expected = hex!("
+//!     97d2a569059bbcd8ead4444ff99071f4
+//!     c01d005bcefe0d3567e1be628e5fdcd9
+//! ");
+//! assert_eq!(code_bytes[..], expected[..]);
+//! ```
+//!
+//! To verify the message:
+//!
+//! ```rust
+//! # use sha2::Sha256;
+//! # use hmac::{Hmac, Mac};
+//! # use hex_literal::hex;
+//! # type HmacSha256 = Hmac<Sha256>;
+//! let mut mac = HmacSha256::new_from_slice(b"my secret and secure key")
+//!     .expect("HMAC can take key of any size");
+//!
+//! mac.update(b"input message");
+//!
+//! let code_bytes = hex!("
+//!     97d2a569059bbcd8ead4444ff99071f4
+//!     c01d005bcefe0d3567e1be628e5fdcd9
+//! ");
+//! // `verify_slice` will return `Ok(())` if code is correct, `Err(MacError)` otherwise
+//! mac.verify_slice(&code_bytes[..]).unwrap();
+//! ```
+//!
+//! # Block and input sizes
+//! Usually it is assumed that block size is larger than output size. Due to the
+//! generic nature of the implementation, this edge case must be handled as well
+//! to remove potential panic. This is done by truncating hash output to the hash
+//! block size if needed.
+//!
+//! [`digest`]: https://docs.rs/digest
+//! [`sha2`]: https://docs.rs/sha2
+//! [`RustCrypto/hashes`]: https://github.com/RustCrypto/hashes
+
+#![no_std]
+#![doc(
+    html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/26acc39f/logo.svg",
+    html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/media/26acc39f/logo.svg",
+    html_root_url = "https://docs.rs/hmac/0.12.1"
+)]
+#![forbid(unsafe_code)]
+#![cfg_attr(docsrs, feature(doc_cfg))]
+#![warn(missing_docs, rust_2018_idioms)]
+
+#[cfg(feature = "std")]
+extern crate std;
+
+pub use digest;
+pub use digest::Mac;
+
+use digest::{
+    core_api::{Block, BlockSizeUser},
+    Digest,
+};
+
+mod optim;
+mod simple;
+
+pub use optim::{Hmac, HmacCore};
+pub use simple::SimpleHmac;
+
+const IPAD: u8 = 0x36;
+const OPAD: u8 = 0x5C;
+
+fn get_der_key<D: Digest + BlockSizeUser>(key: &[u8]) -> Block<D> {
+    let mut der_key = Block::<D>::default();
+    // The key that HMAC processes must be the same as the block size of the
+    // underlying hash function. If the provided key is smaller than that,
+    // we just pad it with zeros. If its larger, we hash it and then pad it
+    // with zeros.
+    if key.len() <= der_key.len() {
+        der_key[..key.len()].copy_from_slice(key);
+    } else {
+        let hash = D::digest(key);
+        // All commonly used hash functions have block size bigger
+        // than output hash size, but to be extra rigorous we
+        // handle the potential uncommon cases as well.
+        // The condition is calcualted at compile time, so this
+        // branch gets removed from the final binary.
+        if hash.len() <= der_key.len() {
+            der_key[..hash.len()].copy_from_slice(&hash);
+        } else {
+            let n = der_key.len();
+            der_key.copy_from_slice(&hash[..n]);
+        }
+    }
+    der_key
+}
diff --git a/vendor/hmac/src/optim.rs b/vendor/hmac/src/optim.rs
new file mode 100644
index 000000000..32d6277ef
--- /dev/null
+++ b/vendor/hmac/src/optim.rs
@@ -0,0 +1,280 @@
+use super::{get_der_key, IPAD, OPAD};
+use core::{fmt, slice};
+#[cfg(feature = "reset")]
+use digest::Reset;
+use digest::{
+    block_buffer::Eager,
+    core_api::{
+        AlgorithmName, Block, BlockSizeUser, Buffer, BufferKindUser, CoreProxy, CoreWrapper,
+        FixedOutputCore, OutputSizeUser, UpdateCore,
+    },
+    crypto_common::{Key, KeySizeUser},
+    generic_array::typenum::{IsLess, Le, NonZero, U256},
+    HashMarker, InvalidLength, KeyInit, MacMarker, Output,
+};
+
+/// Generic HMAC instance.
+pub type Hmac<D> = CoreWrapper<HmacCore<D>>;
+
+/// Generic core HMAC instance, which operates over blocks.
+pub struct HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    digest: D::Core,
+    opad_digest: D::Core,
+    #[cfg(feature = "reset")]
+    ipad_digest: D::Core,
+}
+
+impl<D> Clone for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    fn clone(&self) -> Self {
+        Self {
+            digest: self.digest.clone(),
+            opad_digest: self.opad_digest.clone(),
+            #[cfg(feature = "reset")]
+            ipad_digest: self.ipad_digest.clone(),
+        }
+    }
+}
+
+impl<D> MacMarker for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+}
+
+impl<D> BufferKindUser for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    type BufferKind = Eager;
+}
+
+impl<D> KeySizeUser for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    type KeySize = <<D as CoreProxy>::Core as BlockSizeUser>::BlockSize;
+}
+
+impl<D> BlockSizeUser for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    type BlockSize = <<D as CoreProxy>::Core as BlockSizeUser>::BlockSize;
+}
+
+impl<D> OutputSizeUser for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    type OutputSize = <<D as CoreProxy>::Core as OutputSizeUser>::OutputSize;
+}
+
+impl<D> KeyInit for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    #[inline(always)]
+    fn new(key: &Key<Self>) -> Self {
+        Self::new_from_slice(key.as_slice()).unwrap()
+    }
+
+    #[inline(always)]
+    fn new_from_slice(key: &[u8]) -> Result<Self, InvalidLength> {
+        let mut buf = get_der_key::<CoreWrapper<D::Core>>(key);
+        for b in buf.iter_mut() {
+            *b ^= IPAD;
+        }
+        let mut digest = D::Core::default();
+        digest.update_blocks(slice::from_ref(&buf));
+
+        for b in buf.iter_mut() {
+            *b ^= IPAD ^ OPAD;
+        }
+
+        let mut opad_digest = D::Core::default();
+        opad_digest.update_blocks(slice::from_ref(&buf));
+
+        Ok(Self {
+            #[cfg(feature = "reset")]
+            ipad_digest: digest.clone(),
+            opad_digest,
+            digest,
+        })
+    }
+}
+
+impl<D> UpdateCore for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    #[inline(always)]
+    fn update_blocks(&mut self, blocks: &[Block<Self>]) {
+        self.digest.update_blocks(blocks);
+    }
+}
+
+impl<D> FixedOutputCore for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    #[inline(always)]
+    fn finalize_fixed_core(&mut self, buffer: &mut Buffer<Self>, out: &mut Output<Self>) {
+        let mut hash = Output::<D::Core>::default();
+        self.digest.finalize_fixed_core(buffer, &mut hash);
+        // finalize_fixed_core should reset the buffer as well, but
+        // to be extra safe we reset it explicitly again.
+        buffer.reset();
+        #[cfg(not(feature = "reset"))]
+        let h = &mut self.opad_digest;
+        #[cfg(feature = "reset")]
+        let mut h = self.opad_digest.clone();
+        buffer.digest_blocks(&hash, |b| h.update_blocks(b));
+        h.finalize_fixed_core(buffer, out);
+    }
+}
+
+#[cfg(feature = "reset")]
+#[cfg_attr(docsrs, doc(cfg(feature = "reset")))]
+impl<D> Reset for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    #[inline(always)]
+    fn reset(&mut self) {
+        self.digest = self.ipad_digest.clone();
+    }
+}
+
+impl<D> AlgorithmName for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + AlgorithmName
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    fn write_alg_name(f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str("Hmac<")?;
+        <D::Core as AlgorithmName>::write_alg_name(f)?;
+        f.write_str(">")
+    }
+}
+
+impl<D> fmt::Debug for HmacCore<D>
+where
+    D: CoreProxy,
+    D::Core: HashMarker
+        + AlgorithmName
+        + UpdateCore
+        + FixedOutputCore
+        + BufferKindUser<BufferKind = Eager>
+        + Default
+        + Clone,
+    <D::Core as BlockSizeUser>::BlockSize: IsLess<U256>,
+    Le<<D::Core as BlockSizeUser>::BlockSize, U256>: NonZero,
+{
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str("HmacCore<")?;
+        <D::Core as AlgorithmName>::write_alg_name(f)?;
+        f.write_str("> { ... }")
+    }
+}
diff --git a/vendor/hmac/src/simple.rs b/vendor/hmac/src/simple.rs
new file mode 100644
index 000000000..e28c4c34b
--- /dev/null
+++ b/vendor/hmac/src/simple.rs
@@ -0,0 +1,106 @@
+use super::{get_der_key, IPAD, OPAD};
+use core::fmt;
+use digest::{
+    crypto_common::{Block, BlockSizeUser, InvalidLength, Key, KeySizeUser},
+    Digest, FixedOutput, KeyInit, MacMarker, Output, OutputSizeUser, Update,
+};
+#[cfg(feature = "reset")]
+use digest::{FixedOutputReset, Reset};
+
+/// Simplified HMAC instance able to operate over hash functions
+/// which do not expose block-level API and hash functions which
+/// process blocks lazily (e.g. BLAKE2).
+#[derive(Clone)]
+pub struct SimpleHmac<D: Digest + BlockSizeUser> {
+    digest: D,
+    opad_key: Block<D>,
+    #[cfg(feature = "reset")]
+    ipad_key: Block<D>,
+}
+
+impl<D: Digest + BlockSizeUser> KeySizeUser for SimpleHmac<D> {
+    type KeySize = D::BlockSize;
+}
+
+impl<D: Digest + BlockSizeUser> MacMarker for SimpleHmac<D> {}
+
+impl<D: Digest + BlockSizeUser> KeyInit for SimpleHmac<D> {
+    fn new(key: &Key<Self>) -> Self {
+        Self::new_from_slice(key.as_slice()).unwrap()
+    }
+
+    #[inline]
+    fn new_from_slice(key: &[u8]) -> Result<Self, InvalidLength> {
+        let der_key = get_der_key::<D>(key);
+        let mut ipad_key = der_key.clone();
+        for b in ipad_key.iter_mut() {
+            *b ^= IPAD;
+        }
+        let mut digest = D::new();
+        digest.update(&ipad_key);
+
+        let mut opad_key = der_key;
+        for b in opad_key.iter_mut() {
+            *b ^= OPAD;
+        }
+
+        Ok(Self {
+            digest,
+            opad_key,
+            #[cfg(feature = "reset")]
+            ipad_key,
+        })
+    }
+}
+
+impl<D: Digest + BlockSizeUser> Update for SimpleHmac<D> {
+    #[inline(always)]
+    fn update(&mut self, data: &[u8]) {
+        self.digest.update(data);
+    }
+}
+
+impl<D: Digest + BlockSizeUser> OutputSizeUser for SimpleHmac<D> {
+    type OutputSize = D::OutputSize;
+}
+
+impl<D: Digest + BlockSizeUser> FixedOutput for SimpleHmac<D> {
+    fn finalize_into(self, out: &mut Output<Self>) {
+        let mut h = D::new();
+        h.update(&self.opad_key);
+        h.update(&self.digest.finalize());
+        h.finalize_into(out);
+    }
+}
+
+impl<D: Digest + BlockSizeUser + fmt::Debug> fmt::Debug for SimpleHmac<D> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_struct("SimpleHmac")
+            .field("digest", &self.digest)
+            // TODO: replace with `finish_non_exhaustive` on MSRV
+            // bump to 1.53
+            .field("..", &"..")
+            .finish()
+    }
+}
+
+#[cfg(feature = "reset")]
+#[cfg_attr(docsrs, doc(cfg(feature = "reset")))]
+impl<D: Digest + BlockSizeUser + Reset> Reset for SimpleHmac<D> {
+    fn reset(&mut self) {
+        Reset::reset(&mut self.digest);
+        self.digest.update(&self.ipad_key);
+    }
+}
+
+#[cfg(feature = "reset")]
+#[cfg_attr(docsrs, doc(cfg(feature = "reset")))]
+impl<D: Digest + BlockSizeUser + FixedOutputReset> FixedOutputReset for SimpleHmac<D> {
+    fn finalize_into_reset(&mut self, out: &mut Output<Self>) {
+        let mut h = D::new();
+        Update::update(&mut h, &self.opad_key);
+        Update::update(&mut h, &self.digest.finalize_reset());
+        Update::update(&mut self.digest, &self.ipad_key);
+        Digest::finalize_into(h, out);
+    }
+}
diff --git a/vendor/hmac/tests/data/md5.blb b/vendor/hmac/tests/data/md5.blb
new file mode 100644
index 000000000..731a0ae4d
--- /dev/null
+++ b/vendor/hmac/tests/data/md5.blb
diff --git a/vendor/hmac/tests/data/sha224.blb b/vendor/hmac/tests/data/sha224.blb
new file mode 100644
index 000000000..dabb20b3d
--- /dev/null
+++ b/vendor/hmac/tests/data/sha224.blb
diff --git a/vendor/hmac/tests/data/sha256.blb b/vendor/hmac/tests/data/sha256.blb
new file mode 100644
index 000000000..6b5b288e1
--- /dev/null
+++ b/vendor/hmac/tests/data/sha256.blb
diff --git a/vendor/hmac/tests/data/sha384.blb b/vendor/hmac/tests/data/sha384.blb
new file mode 100644
index 000000000..d5cddb312
--- /dev/null
+++ b/vendor/hmac/tests/data/sha384.blb
diff --git a/vendor/hmac/tests/data/sha512.blb b/vendor/hmac/tests/data/sha512.blb
new file mode 100644
index 000000000..b79ae49fe
--- /dev/null
+++ b/vendor/hmac/tests/data/sha512.blb
diff --git a/vendor/hmac/tests/data/streebog256.blb b/vendor/hmac/tests/data/streebog256.blb
new file mode 100644
index 000000000..99d972294
--- /dev/null
+++ b/vendor/hmac/tests/data/streebog256.blb
diff --git a/vendor/hmac/tests/data/streebog512.blb b/vendor/hmac/tests/data/streebog512.blb
new file mode 100644
index 000000000..8f0f151fc
--- /dev/null
+++ b/vendor/hmac/tests/data/streebog512.blb
diff --git a/vendor/hmac/tests/data/wycheproof-sha1.blb b/vendor/hmac/tests/data/wycheproof-sha1.blb
new file mode 100644
index 000000000..a4f8f4363
--- /dev/null
+++ b/vendor/hmac/tests/data/wycheproof-sha1.blb
diff --git a/vendor/hmac/tests/data/wycheproof-sha256.blb b/vendor/hmac/tests/data/wycheproof-sha256.blb
new file mode 100644
index 000000000..62f1d3570
--- /dev/null
+++ b/vendor/hmac/tests/data/wycheproof-sha256.blb
diff --git a/vendor/hmac/tests/data/wycheproof-sha384.blb b/vendor/hmac/tests/data/wycheproof-sha384.blb
new file mode 100644
index 000000000..69a787437
--- /dev/null
+++ b/vendor/hmac/tests/data/wycheproof-sha384.blb
diff --git a/vendor/hmac/tests/data/wycheproof-sha512.blb b/vendor/hmac/tests/data/wycheproof-sha512.blb
new file mode 100644
index 000000000..e061fd554
--- /dev/null
+++ b/vendor/hmac/tests/data/wycheproof-sha512.blb
diff --git a/vendor/hmac/tests/mod.rs b/vendor/hmac/tests/mod.rs
new file mode 100644
index 000000000..d1798c891
--- /dev/null
+++ b/vendor/hmac/tests/mod.rs
@@ -0,0 +1,88 @@
+#[cfg(not(feature = "reset"))]
+use digest::new_mac_test as test;
+#[cfg(feature = "reset")]
+use digest::new_resettable_mac_test as test;
+use hmac::{Hmac, SimpleHmac};
+use sha1::Sha1;
+use sha2::{Sha224, Sha256, Sha384, Sha512};
+use streebog::{Streebog256, Streebog512};
+
+// Test vectors from RFC 2104, plus wiki test
+test!(hmac_md5_rfc2104, "md5", Hmac<md5::Md5>);
+test!(hmac_md5_rfc2104_simple, "md5", SimpleHmac<md5::Md5>);
+
+// Test vectors from RFC 4231
+test!(hmac_sha224_rfc4231, "sha224", Hmac<Sha224>);
+test!(hmac_sha256_rfc4231, "sha256", Hmac<Sha256>);
+test!(hmac_sha384_rfc4231, "sha384", Hmac<Sha384>);
+test!(hmac_sha512_rfc4231, "sha512", Hmac<Sha512>);
+test!(hmac_sha224_rfc4231_simple, "sha224", SimpleHmac<Sha224>);
+test!(hmac_sha256_rfc4231_simple, "sha256", SimpleHmac<Sha256>);
+test!(hmac_sha384_rfc4231_simple, "sha384", SimpleHmac<Sha384>);
+test!(hmac_sha512_rfc4231_simple, "sha512", SimpleHmac<Sha512>);
+
+// Test vectors from R 50.1.113-2016:
+// https://tc26.ru/standard/rs/Р 50.1.113-2016.pdf
+test!(hmac_streebog256, "streebog256", Hmac<Streebog256>);
+test!(hmac_streebog512, "streebog512", Hmac<Streebog512>);
+test!(
+    hmac_streebog256_simple,
+    "streebog256",
+    SimpleHmac<Streebog256>
+);
+test!(
+    hmac_streebog512_simple,
+    "streebog512",
+    SimpleHmac<Streebog512>
+);
+
+// Tests from Project Wycheproof:
+// https://github.com/google/wycheproof
+test!(
+    hmac_sha1_wycheproof,
+    "wycheproof-sha1",
+    Hmac<Sha1>,
+    trunc_left,
+);
+test!(
+    hmac_sha256_wycheproof,
+    "wycheproof-sha256",
+    Hmac<Sha256>,
+    trunc_left,
+);
+test!(
+    hmac_sha384_wycheproof,
+    "wycheproof-sha384",
+    Hmac<Sha384>,
+    trunc_left,
+);
+test!(
+    hmac_sha512_wycheproof,
+    "wycheproof-sha512",
+    Hmac<Sha512>,
+    trunc_left,
+);
+test!(
+    hmac_sha1_wycheproof_simple,
+    "wycheproof-sha1",
+    SimpleHmac<Sha1>,
+    trunc_left,
+);
+test!(
+    hmac_sha256_wycheproof_simple,
+    "wycheproof-sha256",
+    SimpleHmac<Sha256>,
+    trunc_left,
+);
+test!(
+    hmac_sha384_wycheproof_simple,
+    "wycheproof-sha384",
+    SimpleHmac<Sha384>,
+    trunc_left,
+);
+test!(
+    hmac_sha512_wycheproof_simple,
+    "wycheproof-sha512",
+    SimpleHmac<Sha512>,
+    trunc_left,
+);