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notes-service/vendor/hkdf/.cargo-checksum.json
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notes-service/vendor/hkdf/CHANGELOG.md
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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).
## 0.13.0 (2026-03-30)
### Added
- New `Hkdf` and `HkdfExtract` type aliases for `GenericHkdf` and `GenericHkdfExtract` ([#155])
- Implement `kdf::Kdf` for `GenericHkdfExtract` ([#173])
### Changed
- Bump MSRV to 1.85 and edition to 2024 ([#114])
- Bump `hmac` dependency to v0.13
- Use `digest::EagerHash` ([#148])
- Unseal `HmacImpl` trait ([#154])
- Rename `Hkdf` and `HkdfExtract` to `GenericHkdf` and `GenericHkdfExtract` respectively ([#155])
- Use simplified `H: HmacImpl` bounds ([#155])
### Removed
- `std` crate feature ([#105])
[#105]: https://github.com/RustCrypto/KDFs/pull/105
[#114]: https://github.com/RustCrypto/KDFs/pull/114
[#148]: https://github.com/RustCrypto/KDFs/pull/148
[#154]: https://github.com/RustCrypto/KDFs/pull/154
[#155]: https://github.com/RustCrypto/KDFs/pull/155
[#173]: https://github.com/RustCrypto/KDFs/pull/173
## 0.12.3 (2022-02-17)
### Fixed
- Minimal versions build ([#63])
[#63]: https://github.com/RustCrypto/KDFs/pull/63
## 0.12.2 (2022-01-27)
### Fixed
- Re-export `InvalidLength` and `InvalidPrkLength` ([#59])
[#59]: https://github.com/RustCrypto/KDFs/pull/59
## 0.12.1 (2022-01-27) [YANKED]
### Added
- Ability to switch HMAC implementation to `SimpleHmac` with respective `SimpleHkdfExtract` and `SimpleHkdf` aliases ([#57])
[#57]: https://github.com/RustCrypto/KDFs/pull/55
## 0.12.0 (2021-12-07)
### Changed
- Bump `hmac` crate dependency to v0.12 and `digest` to v0.10 ([#52])
[#52]: https://github.com/RustCrypto/KDFs/pull/52
## 0.11.0 (2021-04-29)
### Added
- Wycheproof HKDF test vectors ([#49])
### Changed
- Bump `hmac` crate dependency to v0.11 ([#50])
### Fixed
- HKDF-Extract with empty salt ([#46])
[#46]: https://github.com/RustCrypto/KDFs/pull/46
[#49]: https://github.com/RustCrypto/KDFs/pull/49
[#50]: https://github.com/RustCrypto/KDFs/pull/50
## 0.10.0 (2020-10-26)
### Changed
- Bump `hmac` dependency to v0.10 ([#40])
[#40]: https://github.com/RustCrypto/KDFs/pull/40
## 0.9.0 (2020-06-22)
### Added
- Multipart features for HKDF-Extract and HKDF-Expand ([#34])
### Changed
- Bump `digest` v0.9; `hmac` v0.9 ([#35])
[#34]: https://github.com/RustCrypto/KDFs/pull/34
[#35]: https://github.com/RustCrypto/KDFs/pull/35
## 0.8.0 (2019-07-26)
### Added
- `Hkdf::from_prk()`, `Hkdf::extract()`
## 0.7.1 (2019-07-15)
## 0.7.0 (2018-10-16)
### Changed
- Update digest to 0.8
- Refactor for API changes
### Removed
- Redundant `generic-array` crate.
## 0.6.0 (2018-08-20)
### Changed
- The `expand` signature has changed.
### Removed
- `std` requirement
## 0.5.0 (2018-05-20)
### Fixed
- Omitting HKDF salt.
### Removed
- Deprecated interface
## 0.4.0 (2018-03-20
### Added
- Benchmarks
- derive `Clone`
### Changed
- RFC-inspired interface
- Reduce heap allocation
- Bump deps: hex-0.3
### Removed
- Unnecessary mut
## 0.3.0 (2017-11-29)
### Changed
- update dependencies: digest-0.7, hmac-0.5
## 0.2.0 (2017-09-21)
### Fixed
- Support for rustc 1.20.0
## 0.1.2 (2017-09-21)
### Fixed
- Support for rustc 1.5.0
## 0.1.0 (2017-09-21)
- Initial release
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notes-service/vendor/hkdf/Cargo.toml
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notes-service/vendor/hkdf/Cargo.toml.orig
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[package]
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notes-service/vendor/hkdf/LICENSE-APACHE
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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notes-service/vendor/hkdf/LICENSE-MIT
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Copyright (c) 2015-2018 Vlad Filippov
Copyright (c) 2018-2021 RustCrypto Developers
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
limitation the rights to use, copy, modify, merge,
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.
notes-service/vendor/hkdf/README.md
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# [RustCrypto]: HKDF
[![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]
Pure Rust implementation of the [HMAC-based Extract-and-Expand Key Derivation Function (HKDF)](https://tools.ietf.org/html/rfc5869) generic over hash function.
# Usage
The most common way to use HKDF is as follows: you provide the Initial Key Material (IKM) and an optional salt, then you expand it (perhaps multiple times) into some Output Key Material (OKM) bound to an "info" context string.
```rust
use sha2::Sha256;
use hkdf::Hkdf;
use hex_literal::hex;
let ikm = hex!("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
let salt = hex!("000102030405060708090a0b0c");
let info = hex!("f0f1f2f3f4f5f6f7f8f9");
let hk = Hkdf::<Sha256>::new(Some(&salt[..]), &ikm);
let mut okm = [0u8; 42];
hk.expand(&info, &mut okm)
.expect("42 is a valid length for Sha256 to output");
let expected = hex!("
3cb25f25faacd57a90434f64d0362f2a
2d2d0a90cf1a5a4c5db02d56ecc4c5bf
34007208d5b887185865
");
assert_eq!(okm, expected);
```
Normally the PRK (Pseudo-Random Key) remains hidden within the HKDF object, but if you need to access it, use `Hkdf::extract` instead of `Hkdf::new`.
```rust
use sha2::Sha256;
use hkdf::Hkdf;
use hex_literal::hex;
let ikm = hex!("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
let salt = hex!("000102030405060708090a0b0c");
let (prk, hk) = Hkdf::<Sha256>::extract(Some(&salt[..]), &ikm);
let expected = hex!("
077709362c2e32df0ddc3f0dc47bba63
90b6c73bb50f9c3122ec844ad7c2b3e5
");
assert_eq!(prk[..], expected[..]);
```
If you already have a strong key to work from (uniformly-distributed and
long enough), you can save a tiny amount of time by skipping the extract
step. In this case, you pass a Pseudo-Random Key (PRK) into the
`Hkdf::from_prk` constructor, then use the resulting `Hkdf` object
as usual.
```rust
use sha2::Sha256;
use hkdf::Hkdf;
use hex_literal::hex;
let salt = hex!("000102030405060708090a0b0c");
let info = hex!("f0f1f2f3f4f5f6f7f8f9");
let prk = hex!("
077709362c2e32df0ddc3f0dc47bba63
90b6c73bb50f9c3122ec844ad7c2b3e5
");
let hk = Hkdf::<Sha256>::from_prk(&prk).expect("PRK should be large enough");
let mut okm = [0u8; 42];
hk.expand(&info, &mut okm)
.expect("42 is a valid length for Sha256 to output");
let expected = hex!("
3cb25f25faacd57a90434f64d0362f2a
2d2d0a90cf1a5a4c5db02d56ecc4c5bf
34007208d5b887185865
");
assert_eq!(okm, expected);
```
## 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/hkdf.svg
[crate-link]: https://crates.io/crates/hkdf
[docs-image]: https://docs.rs/hkdf/badge.svg
[docs-link]: https://docs.rs/hkdf/
[license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
[rustc-image]: https://img.shields.io/badge/rustc-1.85+-blue.svg
[chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
[chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260043-KDFs
[build-image]: https://github.com/RustCrypto/KDFs/workflows/hkdf/badge.svg?branch=master&event=push
[build-link]: https://github.com/RustCrypto/KDFs/actions?query=workflow:hkdf
[//]: # (links)
[RustCrypto]: https://github.com/RustCrypto
notes-service/vendor/hkdf/benches/mod.rs
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#![feature(test)]
extern crate test;
use test::Bencher;
type HkdfSha256 = hkdf::Hkdf<sha2::Sha256>;
#[bench]
fn hkdf_sha256_10(b: &mut Bencher) {
let mut okm = vec![0u8; 10];
b.iter(|| HkdfSha256::new(Some(&[]), &[]).expand(&[], &mut okm));
b.bytes = okm.len() as u64;
}
#[bench]
fn hkdf_sha256_1024(b: &mut Bencher) {
let mut okm = vec![0u8; 1024];
b.iter(|| HkdfSha256::new(Some(&[]), &[]).expand(&[], &mut okm));
b.bytes = okm.len() as u64;
}
#[bench]
fn hkdf_sha256_8000(b: &mut Bencher) {
let mut okm = vec![0u8; 8000];
b.iter(|| HkdfSha256::new(Some(&[]), &[]).expand(&[], &mut okm));
b.bytes = okm.len() as u64;
}
notes-service/vendor/hkdf/src/errors.rs
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use core::fmt;
/// Error that is returned when supplied pseudorandom key (PRK) is not long enough.
#[derive(Copy, Clone, Debug)]
pub struct InvalidPrkLength;
impl fmt::Display for InvalidPrkLength {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
f.write_str("invalid pseudorandom key length, too short")
}
}
impl core::error::Error for InvalidPrkLength {}
/// Structure for `InvalidLength`, used for output error handling.
#[derive(Copy, Clone, Debug)]
pub struct InvalidLength;
impl fmt::Display for InvalidLength {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
f.write_str("invalid number of blocks, too large output")
}
}
impl core::error::Error for InvalidLength {}
notes-service/vendor/hkdf/src/hmac_impl.rs
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use hmac::digest::{
Digest, FixedOutput, KeyInit, Output, Update,
block_api::{BlockSizeUser, OutputSizeUser},
};
use hmac::{EagerHash, Hmac, SimpleHmac};
/// Trait representing a HMAC implementation.
///
/// Most users should use [`Hmac`] or [`SimpleHmac`].
pub trait HmacImpl: Clone + OutputSizeUser {
/// Create new HMAC state with the given key.
fn new_from_slice(key: &[u8]) -> Self;
/// Update HMAC state.
fn update(&mut self, data: &[u8]);
/// Finalize the HMAC state and get generated tag.
fn finalize(self) -> Output<Self>;
}
impl<H: EagerHash> HmacImpl for Hmac<H> {
#[inline(always)]
fn new_from_slice(key: &[u8]) -> Self {
KeyInit::new_from_slice(key).expect("HMAC can take a key of any size")
}
#[inline(always)]
fn update(&mut self, data: &[u8]) {
Update::update(self, data);
}
#[inline(always)]
fn finalize(self) -> Output<Self> {
self.finalize_fixed()
}
}
impl<H> HmacImpl for SimpleHmac<H>
where
H: Digest + BlockSizeUser + Clone,
{
#[inline(always)]
fn new_from_slice(key: &[u8]) -> Self {
KeyInit::new_from_slice(key).expect("HMAC can take a key of any size")
}
#[inline(always)]
fn update(&mut self, data: &[u8]) {
Update::update(self, data);
}
#[inline(always)]
fn finalize(self) -> Output<H> {
self.finalize_fixed()
}
}
notes-service/vendor/hkdf/src/lib.rs
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#![no_std]
#![doc = include_str!("../README.md")]
#![doc(
html_logo_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg",
html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/media/6ee8e381/logo.svg"
)]
#![cfg_attr(docsrs, feature(doc_cfg))]
use hmac::{
Hmac, SimpleHmac,
digest::{Output, OutputSizeUser, array::typenum::Unsigned},
};
mod errors;
mod hmac_impl;
pub use errors::{InvalidLength, InvalidPrkLength};
pub use hmac;
pub use hmac_impl::HmacImpl;
#[cfg(feature = "kdf")]
pub use kdf::{self, Kdf};
/// [`GenericHkdfExtract`] variant which uses [`Hmac`] for the underlying HMAC implementation.
pub type HkdfExtract<H> = GenericHkdfExtract<Hmac<H>>;
/// [`GenericHkdf`] variant which uses [`Hmac`] for the underlying HMAC implementation.
pub type Hkdf<H> = GenericHkdf<Hmac<H>>;
/// [`GenericHkdfExtract`] variant which uses [`SimpleHmac`] for the underlying HMAC implementation.
pub type SimpleHkdfExtract<H> = GenericHkdfExtract<SimpleHmac<H>>;
/// [`GenericHkdf`] variant which uses [`SimpleHmac`] for the underlying HMAC implementation.
pub type SimpleHkdf<H> = GenericHkdf<SimpleHmac<H>>;
/// Structure representing the streaming context of an HKDF-Extract operation.
///
/// This type is generic over HMAC implementation. Most users should use
/// [`HkdfExtract`] or [`SimpleHkdfExtract`] type aliases.
#[derive(Clone, Debug)]
pub struct GenericHkdfExtract<H: HmacImpl> {
hmac: H,
}
impl<H: HmacImpl> GenericHkdfExtract<H> {
/// Initiates the HKDF-Extract context with the given optional salt
#[must_use]
pub fn new(salt: Option<&[u8]>) -> Self {
let default_salt = Output::<H>::default();
let salt = salt.unwrap_or(&default_salt);
let hmac = H::new_from_slice(salt);
Self { hmac }
}
/// Feeds in additional input key material to the HKDF-Extract context
pub fn input_ikm(&mut self, ikm: &[u8]) {
self.hmac.update(ikm);
}
/// Completes the HKDF-Extract operation, returning both the generated pseudorandom key and
/// `Hkdf` struct for expanding.
#[allow(clippy::missing_panics_doc, reason = "PRK size is correct")]
pub fn finalize(self) -> (Output<H>, GenericHkdf<H>) {
let prk = self.hmac.finalize();
let hkdf = GenericHkdf::<H>::from_prk(&prk).expect("PRK size is correct");
(prk, hkdf)
}
}
#[cfg(feature = "kdf")]
impl<H: HmacImpl> Kdf for GenericHkdfExtract<H> {
fn derive_key(&self, secret: &[u8], info: &[u8], out: &mut [u8]) -> kdf::Result<()> {
let mut extract = self.clone();
extract.input_ikm(secret);
let (_, hkdf) = extract.finalize();
hkdf.expand(info, out).map_err(|_| kdf::Error)
}
}
/// Structure representing the HKDF, capable of HKDF-Expand and HKDF-Extract operations.
/// Recommendations for the correct usage of the parameters can be found in the
/// [crate root](index.html#usage).
///
/// This type is generic over HMAC implementation. Most users should use
/// [`Hkdf`] or [`SimpleHkdf`] type aliases.
#[derive(Clone, Debug)]
pub struct GenericHkdf<H: HmacImpl> {
hmac: H,
}
impl<H: HmacImpl> GenericHkdf<H> {
/// Convenience method for [`extract`][Hkdf::extract] when the generated
/// pseudorandom key can be ignored and only HKDF-Expand operation is needed. This is the most
/// common constructor.
#[must_use]
pub fn new(salt: Option<&[u8]>, ikm: &[u8]) -> Self {
let (_, hkdf) = Self::extract(salt, ikm);
hkdf
}
/// Create `Hkdf` from an already cryptographically strong pseudorandom key
/// as per section 3.3 from RFC5869.
///
/// # Errors
/// Returns [`InvalidPrkLength`] if `prk` is shorter than the output size of `H`.
pub fn from_prk(prk: &[u8]) -> Result<Self, InvalidPrkLength> {
// section 2.3 specifies that `prk` must be "at least HashLen octets"
let hash_len = <H as OutputSizeUser>::OutputSize::to_usize();
if prk.len() < hash_len {
return Err(InvalidPrkLength);
}
let hmac = H::new_from_slice(prk);
Ok(Self { hmac })
}
/// The RFC5869 HKDF-Extract operation returning both the generated
/// pseudorandom key and `Hkdf` struct for expanding.
#[must_use]
pub fn extract(salt: Option<&[u8]>, ikm: &[u8]) -> (Output<H>, Self) {
let mut extract_ctx = GenericHkdfExtract::<H>::new(salt);
extract_ctx.input_ikm(ikm);
extract_ctx.finalize()
}
/// The RFC5869 HKDF-Expand operation. This is equivalent to calling
/// [`expand`][Hkdf::extract] with the `info` argument set equal to the
/// concatenation of all the elements of `info_components`.
///
/// # Errors
/// Returns [`InvalidLength`] in the event `okm` is too large.
#[allow(clippy::missing_panics_doc, reason = "expect should not fail")]
pub fn expand_multi_info(
&self,
info_components: &[&[u8]],
okm: &mut [u8],
) -> Result<(), InvalidLength> {
let mut prev: Option<Output<H>> = None;
let chunk_len = <H as OutputSizeUser>::OutputSize::USIZE;
if okm.len() > chunk_len * 255 {
return Err(InvalidLength);
}
for (block_n, block) in okm.chunks_mut(chunk_len).enumerate() {
let mut hmac = self.hmac.clone();
if let Some(ref prev) = prev {
hmac.update(prev);
};
// Feed in the info components in sequence. This is equivalent to feeding in the
// concatenation of all the info components
for info in info_components {
hmac.update(info);
}
hmac.update(&[u8::try_from(block_n).expect("should convert") + 1]);
let output = hmac.finalize();
let block_len = block.len();
block.copy_from_slice(&output[..block_len]);
prev = Some(output);
}
Ok(())
}
/// The RFC5869 HKDF-Expand operation
///
/// If you don't have any `info` to pass, use an empty slice.
///
/// # Errors
/// Returns [`InvalidLength`] in the event `okm` is too large.
pub fn expand(&self, info: &[u8], okm: &mut [u8]) -> Result<(), InvalidLength> {
self.expand_multi_info(&[info], okm)
}
}
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notes-service/vendor/hkdf/tests/rfc5869.rs
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//! Test vectors from <https://tools.ietf.org/html/rfc5869>.
#![allow(clippy::unwrap_used, reason = "tests")]
use hkdf::{GenericHkdf, HmacImpl};
use hmac::{Hmac, SimpleHmac};
#[derive(Copy, Clone, Debug)]
struct TestVector {
ikm: &'static [u8],
salt: &'static [u8],
info: &'static [u8],
prk: &'static [u8],
okm: &'static [u8],
}
fn test<H: HmacImpl>(tvs: &[TestVector]) {
let mut buf = [0u8; 128];
for tv in tvs {
let salt = if tv.salt.is_empty() {
None
} else {
Some(tv.salt)
};
let (prk2, hkdf) = GenericHkdf::<H>::extract(salt, tv.ikm);
let okm_dst = &mut buf[..tv.okm.len()];
assert!(hkdf.expand(tv.info, okm_dst).is_ok());
assert_eq!(prk2[..], tv.prk[..]);
assert_eq!(okm_dst, tv.okm);
okm_dst.fill(0);
let hkdf = GenericHkdf::<H>::from_prk(tv.prk).unwrap();
assert!(hkdf.expand(tv.info, okm_dst).is_ok());
assert_eq!(okm_dst, tv.okm);
}
}
macro_rules! new_test {
($name:ident, $hash:ty) => {
#[test]
fn $name() {
blobby::parse_into_structs!(
include_bytes!(concat!("data/", stringify!($name), ".blb"));
static TEST_VECTORS: &[TestVector { ikm, salt, info, prk, okm }];
);
test::<Hmac<$hash>>(TEST_VECTORS);
test::<SimpleHmac<$hash>>(TEST_VECTORS);
}
};
}
new_test!(rfc5869_sha1, sha1::Sha1);
new_test!(rfc5869_sha256, sha2::Sha256);
notes-service/vendor/hkdf/tests/tests.rs
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//! Integration tests.
use core::iter;
use hex_literal::hex;
use hkdf::{Hkdf, HkdfExtract, SimpleHkdfExtract};
use sha1::Sha1;
use sha2::Sha256;
const MAX_SHA256_LENGTH: usize = 255 * (256 / 8); // =8160
static COMPONENTS: &[&[u8]] = &[
b"09090909090909090909090909090909090909090909",
b"8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a",
b"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0",
b"4c4c4c4c4c4c4c4c4c4c4c4c4c4c4c4c4c4c4",
b"1d1d1d1d1d1d1d1d1d1d1d1d1d1d1d1d1d",
];
#[test]
fn test_lengths() {
let hkdf = Hkdf::<Sha256>::new(None, &[]);
let mut longest = vec![0u8; MAX_SHA256_LENGTH];
assert!(hkdf.expand(&[], &mut longest).is_ok());
// Runtime is O(length), so exhaustively testing all legal lengths
// would take too long (at least without --release). Only test a
// subset: the first 500, the last 10, and every 100th in between.
let range = 500..MAX_SHA256_LENGTH - 10;
let lengths = (0..MAX_SHA256_LENGTH + 1).filter(|len| !range.contains(len) || *len % 100 == 0);
for length in lengths {
let mut okm = vec![0u8; length];
assert!(hkdf.expand(&[], &mut okm).is_ok());
assert_eq!(okm.len(), length);
assert_eq!(okm[..], longest[..length]);
}
}
#[test]
fn test_max_length() {
let hkdf = Hkdf::<Sha256>::new(Some(&[]), &[]);
let mut okm = vec![0u8; MAX_SHA256_LENGTH];
assert!(hkdf.expand(&[], &mut okm).is_ok());
}
#[test]
fn test_max_length_exceeded() {
let hkdf = Hkdf::<Sha256>::new(Some(&[]), &[]);
let mut okm = vec![0u8; MAX_SHA256_LENGTH + 1];
assert!(hkdf.expand(&[], &mut okm).is_err());
}
#[test]
fn test_unsupported_length() {
let hkdf = Hkdf::<Sha256>::new(Some(&[]), &[]);
let mut okm = vec![0u8; 90000];
assert!(hkdf.expand(&[], &mut okm).is_err());
}
#[test]
fn test_prk_too_short() {
use sha2::digest::Digest;
let output_len = Sha256::output_size();
let prk = vec![0; output_len - 1];
assert!(Hkdf::<Sha256>::from_prk(&prk).is_err());
}
#[test]
#[rustfmt::skip]
fn test_derive_sha1_with_none() {
let ikm = hex!("0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c");
let salt = None;
let info = hex!("");
let (prk, hkdf) = Hkdf::<Sha1>::extract(salt, &ikm[..]);
let mut okm = [0u8; 42];
assert!(hkdf.expand(&info[..], &mut okm).is_ok());
assert_eq!(
prk[..],
hex!("2adccada18779e7c2077ad2eb19d3f3e731385dd")[..]
);
assert_eq!(
okm[..],
hex!("
2c91117204d745f3500d636a62f64f0a
b3bae548aa53d423b0d1f27ebba6f5e5
673a081d70cce7acfc48
")[..],
);
}
#[test]
fn test_expand_multi_info() {
let info_components = COMPONENTS;
let (_, hkdf_ctx) = Hkdf::<Sha256>::extract(None, b"some ikm here");
// Compute HKDF-Expand on the concatenation of all the info components
let mut oneshot_res = [0u8; 16];
hkdf_ctx
.expand(&info_components.concat(), &mut oneshot_res)
.unwrap();
// Now iteratively join the components of info_components until it's all 1 component. The value
// of HKDF-Expand should be the same throughout
let mut num_concatted = 0;
let mut info_head = Vec::new();
while num_concatted < info_components.len() {
info_head.extend(info_components[num_concatted]);
// Build the new input to be the info head followed by the remaining components
let input: Vec<&[u8]> = iter::once(info_head.as_slice())
.chain(info_components.iter().cloned().skip(num_concatted + 1))
.collect();
// Compute and compare to the one-shot answer
let mut multipart_res = [0u8; 16];
hkdf_ctx
.expand_multi_info(&input, &mut multipart_res)
.unwrap();
assert_eq!(multipart_res, oneshot_res);
num_concatted += 1;
}
}
#[test]
fn test_extract_streaming() {
let ikm_components = COMPONENTS;
let salt = b"mysalt";
// Compute HKDF-Extract on the concatenation of all the IKM components
let (oneshot_res, _) = Hkdf::<Sha256>::extract(Some(&salt[..]), &ikm_components.concat());
// Now iteratively join the components of ikm_components until it's all 1 component. The value
// of HKDF-Extract should be the same throughout
let mut num_concatted = 0;
let mut ikm_head = Vec::new();
while num_concatted < ikm_components.len() {
ikm_head.extend(ikm_components[num_concatted]);
// Make a new extraction context and build the new input to be the IKM head followed by the
// remaining components
let mut extract_ctx = HkdfExtract::<Sha256>::new(Some(&salt[..]));
let input = iter::once(ikm_head.as_slice())
.chain(ikm_components.iter().cloned().skip(num_concatted + 1));
// Stream in the IKM input in the chunks specified
for ikm in input {
extract_ctx.input_ikm(ikm);
}
// Finalize and compare to the one-shot answer
let (multipart_res, _) = extract_ctx.finalize();
assert_eq!(multipart_res, oneshot_res);
num_concatted += 1;
}
let mut num_concatted = 0;
let mut ikm_head = Vec::new();
while num_concatted < ikm_components.len() {
ikm_head.extend(ikm_components[num_concatted]);
// Make a new extraction context and build the new input to be the IKM head followed by the
// remaining components
let mut extract_ctx = SimpleHkdfExtract::<Sha256>::new(Some(&salt[..]));
let input = iter::once(ikm_head.as_slice())
.chain(ikm_components.iter().cloned().skip(num_concatted + 1));
// Stream in the IKM input in the chunks specified
for ikm in input {
extract_ctx.input_ikm(ikm);
}
// Finalize and compare to the one-shot answer
let (multipart_res, _) = extract_ctx.finalize();
assert_eq!(multipart_res, oneshot_res);
num_concatted += 1;
}
}
#[test]
fn test_debug_impls() {
fn needs_debug<T: core::fmt::Debug>() {}
needs_debug::<Hkdf<Sha256>>();
needs_debug::<HkdfExtract<Sha256>>();
}
notes-service/vendor/hkdf/tests/wycheproof.rs
Vendored
+52
View File
@@ -0,0 +1,52 @@
//! Wycheproof test vectors.
use hkdf::{GenericHkdf, HmacImpl};
use hmac::{Hmac, SimpleHmac};
#[derive(Copy, Clone, Debug)]
struct TestVector {
ikm: &'static [u8],
salt: &'static [u8],
info: &'static [u8],
okm: &'static [u8],
}
fn test<H: HmacImpl>(test_vectors: &[TestVector]) {
let mut buf = [0u8; 1 << 14];
for (i, tv) in test_vectors.iter().enumerate() {
let prk = GenericHkdf::<H>::new(Some(tv.salt), tv.ikm);
let okm_dst = &mut buf[..tv.okm.len()];
let mut err = None;
if prk.expand(tv.info, okm_dst).is_err() {
err = Some("prk expand");
}
if okm_dst != tv.okm {
err = Some("mismatch in okm");
}
if let Some(err_desc) = err {
panic!("Failed test #{i}: {err_desc}\nTest vector:\t{tv:#?}");
}
}
}
macro_rules! new_test {
($name:ident, $hash:ty) => {
#[test]
fn $name() {
blobby::parse_into_structs!(
include_bytes!(concat!("data/", stringify!($name), ".blb"));
static TEST_VECTORS: &[TestVector { ikm, salt, info, okm }];
);
test::<Hmac<$hash>>(TEST_VECTORS);
test::<SimpleHmac<$hash>>(TEST_VECTORS);
}
};
}
new_test!(wycheproof_sha1, sha1::Sha1);
new_test!(wycheproof_sha256, sha2::Sha256);
new_test!(wycheproof_sha384, sha2::Sha384);
new_test!(wycheproof_sha512, sha2::Sha512);