river_core/
util.rs

1use base64::{engine::general_purpose, Engine as _};
2use data_encoding::BASE32;
3use ed25519_dalek::{Signature, SignatureError, Signer, SigningKey, Verifier, VerifyingKey};
4use serde::Serialize;
5
6pub fn sign_struct<T: Serialize>(message: T, signing_key: &SigningKey) -> Signature {
7    let mut data_to_sign = Vec::new();
8    ciborium::ser::into_writer(&message, &mut data_to_sign).expect("Serialization should not fail");
9    signing_key.sign(&data_to_sign)
10}
11
12pub fn verify_struct<T: Serialize>(
13    message: &T,
14    signature: &Signature,
15    verifying_key: &VerifyingKey,
16) -> Result<(), SignatureError> {
17    let mut data_to_sign = Vec::new();
18    ciborium::ser::into_writer(message, &mut data_to_sign).expect("Serialization should not fail");
19    verifying_key.verify(&data_to_sign, signature)
20}
21
22pub fn truncated_base64<T: AsRef<[u8]>>(data: T) -> String {
23    let encoded = general_purpose::STANDARD_NO_PAD.encode(data);
24    encoded.chars().take(10).collect()
25}
26
27pub fn truncated_base32(bytes: &[u8]) -> String {
28    let encoded = BASE32.encode(bytes);
29    encoded.chars().take(8).collect()
30}
31
32#[cfg(test)]
33mod tests {
34    use super::*;
35    use rand::rngs::OsRng;
36
37    #[test]
38    fn test_sign_verify_struct() {
39        let mut csprng = OsRng;
40        let signing_key = SigningKey::generate(&mut csprng);
41        let verifying_key = signing_key.verifying_key();
42
43        let message = "Hello, World!";
44        let signature = sign_struct(message, &signing_key);
45        assert!(verify_struct(&message, &signature, &verifying_key).is_ok());
46    }
47}
river_core/util.rs

river_core/
util.rs
