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// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// Copyright by contributors to this project.
// SPDX-License-Identifier: (Apache-2.0 OR MIT)
use alloc::vec::Vec;
use core::{
fmt::{self, Debug},
ops::{Deref, DerefMut},
};
use zeroize::Zeroizing;
// #[cfg_attr(
// all(feature = "ffi", not(test)),
// safer_ffi_gen::ffi_type(clone, opaque)
// )]
#[derive(Clone, Eq, PartialEq)]
/// Wrapper struct that represents a zeroize-on-drop `Vec<u8>`
pub struct Secret(Zeroizing<Vec<u8>>);
impl Debug for Secret {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
crate::debug::pretty_bytes(&self.0).named("Secret").fmt(f)
}
}
// #[cfg_attr(all(feature = "ffi", not(test)), safer_ffi_gen::safer_ffi_gen)]
impl Secret {
pub fn as_bytes(&self) -> &[u8] {
&self.0
}
}
impl From<Vec<u8>> for Secret {
fn from(bytes: Vec<u8>) -> Self {
Zeroizing::new(bytes).into()
}
}
impl From<Zeroizing<Vec<u8>>> for Secret {
fn from(bytes: Zeroizing<Vec<u8>>) -> Self {
Self(bytes)
}
}
impl Deref for Secret {
type Target = [u8];
fn deref(&self) -> &[u8] {
&self.0
}
}
impl DerefMut for Secret {
fn deref_mut(&mut self) -> &mut [u8] {
&mut self.0
}
}