wedpr_l_crypto_ecies_secp256k1/
lib.rs

1// Copyright 2020 WeDPR Lab Project Authors. Licensed under Apache-2.0.
2
3//! Secp256k1 ECIES functions.
4
5use wedpr_l_utils::{error::WedprError, traits::Ecies};
6
7#[macro_use]
8extern crate wedpr_l_macros;
9
10/// Implements a ECIES instance on Secp256k1 curve.
11#[derive(Default, Debug, Clone)]
12pub struct WedprSecp256k1Ecies {}
13
14impl Ecies for WedprSecp256k1Ecies {
15    fn encrypt<T: ?Sized + AsRef<[u8]>>(
16        &self,
17        public_key: &T,
18        message: &T,
19    ) -> Result<Vec<u8>, WedprError> {
20        match ecies::encrypt(public_key.as_ref(), message.as_ref()) {
21            Ok(v) => Ok(v.to_vec()),
22            Err(_) => {
23                wedpr_println!("secp256k1 ECIES encrypt failed");
24                return Err(WedprError::FormatError);
25            },
26        }
27    }
28
29    fn decrypt<T: ?Sized + AsRef<[u8]>>(
30        &self,
31        private_key: &T,
32        ciphertext: &T,
33    ) -> Result<Vec<u8>, WedprError> {
34        match ecies::decrypt(private_key.as_ref(), ciphertext.as_ref()) {
35            Ok(v) => Ok(v.to_vec()),
36            Err(_) => {
37                wedpr_println!("secp256k1 ECIES decrypt failed");
38                return Err(WedprError::FormatError);
39            },
40        }
41    }
42}
43
44#[cfg(test)]
45mod tests {
46    use super::*;
47    use wedpr_l_utils::constant::tests::{
48        BASE64_ENCODED_TEST_MESSAGE, SECP256K1_TEST_PUBLIC_KEY,
49        SECP256K1_TEST_SECRET_KEY,
50    };
51
52    #[test]
53    fn test_secp256k1_ecies() {
54        let secp256k1_ecies = WedprSecp256k1Ecies::default();
55
56        let ciphertext = secp256k1_ecies
57            .encrypt(
58                &SECP256K1_TEST_PUBLIC_KEY.to_vec(),
59                &BASE64_ENCODED_TEST_MESSAGE.to_vec(),
60            )
61            .unwrap();
62        let decrypted_msg = secp256k1_ecies
63            .decrypt(&SECP256K1_TEST_SECRET_KEY.to_vec(), &ciphertext)
64            .unwrap();
65        assert_eq!(decrypted_msg, BASE64_ENCODED_TEST_MESSAGE);
66    }
67}
wedpr_l_crypto_ecies_secp256k1/lib.rs

wedpr_l_crypto_ecies_secp256k1/
lib.rs
