Add Hash as SymKey super trait.

CHANGELOG.md

@@ -2,6 +2,15 @@
 
 All notable changes to this project will be documented in this file.
 
+---
+## [2.0.1] - 2022-09-02
+### Added
+- `Hash` super trait to `SymKey`
+### Changed
+### Fixed
+### Removed
+---
+
 ---
 ## [2.0.0] - 2022-08-22
 ### Added

Cargo.toml

@@ -4,7 +4,7 @@ description = "Crypto lib for pure crypto primitives"
 edition = "2021"
 license = "MIT/Apache-2.0"
 name = "cosmian_crypto_core"
-version = "2.0.0"
+version = "2.0.1"
 
 [lib]
 crate-type = ["cdylib", "rlib"]

src/symmetric_crypto/key.rs

@@ -4,7 +4,7 @@ use crate::{symmetric_crypto::SymKey, CryptoCoreError, KeyTrait};
 use aes::cipher::generic_array::{ArrayLength, GenericArray};
 use rand_core::{CryptoRng, RngCore};
 use serde::{Deserialize, Serialize};
-use std::{convert::TryFrom, fmt::Display, ops::Deref};
+use std::{convert::TryFrom, fmt::Display, hash::Hash, ops::Deref};
 use zeroize::{Zeroize, ZeroizeOnDrop};
 
 /// Symmetric key of a given size.
@@ -36,7 +36,7 @@ impl<KeyLength: Eq + ArrayLength<u8>> KeyTrait for Key<KeyLength> {
     }
 }
 
-impl<KeyLength: Eq + ArrayLength<u8>> SymKey for Key<KeyLength> {
+impl<KeyLength: Hash + Eq + ArrayLength<u8>> SymKey for Key<KeyLength> {
     /// Convert the given key into a byte slice, without copy.
     fn as_bytes(&self) -> &[u8] {
         &self.0

src/symmetric_crypto/mod.rs

@@ -17,10 +17,11 @@ use crate::{CryptoCoreError, KeyTrait};
 use generic_array::GenericArray;
 use nonce::NonceTrait;
 use rand_core::{CryptoRng, RngCore};
+use std::hash::Hash;
 use std::vec::Vec;
 
 /// Defines a symmetric encryption key.
-pub trait SymKey: KeyTrait {
+pub trait SymKey: KeyTrait + Hash {
     /// Convert the given key into a byte slice.
     fn as_bytes(&self) -> &[u8];