dcrypt_pke/
lib.rs

1//! Public Key Encryption (PKE) schemes for the dcrypt library.
2#![cfg_attr(not(feature = "std"), no_std)]
3#![forbid(unsafe_code)]
4
5macro_rules! impl_zeroize_on_drop_tuple {
6    ($type:ty) => {
7        impl dcrypt_internal::zeroing::Zeroize for $type {
8            fn zeroize(&mut self) {
9                dcrypt_internal::zeroing::Zeroize::zeroize(&mut self.0);
10            }
11        }
12
13        impl Drop for $type {
14            fn drop(&mut self) {
15                dcrypt_internal::zeroing::Zeroize::zeroize(self);
16            }
17        }
18
19        impl dcrypt_internal::zeroing::ZeroizeOnDrop for $type {}
20    };
21}
22
23#[cfg(test)]
24pub(crate) mod test_rng {
25    use core::sync::atomic::{AtomicU64, Ordering};
26    use dcrypt_internal::random::{
27        try_fill_bytes_zeroing_on_error, ChaCha20Rng, CryptoRng, Error, RngCore,
28    };
29
30    static NEXT_STREAM: AtomicU64 = AtomicU64::new(1);
31
32    pub struct TestRng;
33
34    impl RngCore for TestRng {
35        fn try_fill_bytes(&mut self, destination: &mut [u8]) -> Result<(), Error> {
36            let stream = NEXT_STREAM.fetch_add(1, Ordering::Relaxed);
37            let mut seed = [0u8; 32];
38            seed[..8].copy_from_slice(&stream.to_le_bytes());
39            let mut rng = ChaCha20Rng::from_seed(seed);
40            try_fill_bytes_zeroing_on_error(&mut rng, destination)
41        }
42    }
43
44    impl CryptoRng for TestRng {}
45}
46
47// The published no_std profile requires an allocator, including when default
48// features are disabled.
49#[cfg(not(feature = "std"))]
50extern crate alloc;
51
52pub mod ecies;
53pub mod error;
54
55// Re-export key items
56pub use ecies::{EciesP224, EciesP256, EciesP384, EciesP521};
57pub use error::{Error, Result};
dcrypt_pke/lib.rs

dcrypt_pke/
lib.rs
