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Sienna Meridian Satterwhite
2026-03-26 22:33:59 +00:00
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{"files":{".cargo_vcs_info.json":"b72ee970d967fc9036bfd809116b979c28d5165653c0e33cc522b4779697a9a1","CHANGELOG.md":"9475fa89d1ca3bf8780d4eb95fc23fcf9e46bc80745136caf858cbe1a56da7bb","Cargo.toml":"b56253cfaec8c49b49ce90736dde78025f0b820f2a018edff569bba27e5a5080","Cargo.toml.orig":"e705a2073ad24a785485b1d24e1c761313db1ca933514cd5cacb248abce2a7ee","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"}

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{
"git": {
"sha1": "46797e3b44973a30edb9d7f3a3ebb41810061d90"
},
"path_in_vcs": "hmac"
}

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# 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)

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# 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"]

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Copyright (c) 2017 Artyom Pavlov
Permission is hereby granted, free of charge, to any
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DEALINGS IN THE SOFTWARE.

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# 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

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//! 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
}

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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("> { ... }")
}
}

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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);
}
}

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{"name":"hmac","vers":"0.12.1","deps":[{"name":"digest","req":"^0.10.3","features":["mac"],"optional":false,"default_features":true,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"digest","req":"^0.10","features":["dev"],"optional":false,"default_features":true,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"hex-literal","req":"^0.2.2","features":[],"optional":false,"default_features":true,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"md-5","req":"^0.10","features":[],"optional":false,"default_features":false,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"sha-1","req":"^0.10","features":[],"optional":false,"default_features":false,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"sha2","req":"^0.10","features":[],"optional":false,"default_features":false,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false},{"name":"streebog","req":"^0.10","features":[],"optional":false,"default_features":false,"target":null,"kind":"dev","registry":"https://github.com/rust-lang/crates.io-index","package":null,"public":null,"artifact":null,"bindep_target":null,"lib":false}],"features":{"reset":[],"std":["digest/std"]},"features2":null,"cksum":"65586204db6996a710c500cdd753503b2f24d17c7b9e22cc6e44d248d6881002","yanked":null,"links":null,"rust_version":null,"v":2}

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#[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,
);