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feat: ecdh with openpgp card x25519

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Hatter Jiang
2023-10-05 17:25:25 +08:00
parent a32ef922c7
commit 05afe67de7
1 changed files with 21 additions and 4 deletions
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25
__crypto/curve25519/src/main.rs
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@@ -1,9 +1,11 @@
use std::convert::TryInto;
use ed25519_dalek::{Keypair, Signer, Verifier};
use rand::rngs::OsRng; use rand::rngs::OsRng;
use ed25519_dalek::{ Keypair, Signer, Verifier }; use x25519_dalek::{EphemeralSecret, PublicKey};
use x25519_dalek::{ EphemeralSecret, PublicKey };
fn main() { fn main() {
let mut csprng = OsRng{}; let mut csprng = OsRng {};
let keypair = Keypair::generate(&mut csprng); let keypair = Keypair::generate(&mut csprng);
println!("Key pair: {:#?}", keypair); println!("Key pair: {:#?}", keypair);
@@ -15,14 +17,29 @@ fn main() {
println!("Verify result: {:?}", public_key.verify(message, &signature)); println!("Verify result: {:?}", public_key.verify(message, &signature));
// key exchange // key exchange
println!("{}", "-".repeat(88));
let alice_secret = EphemeralSecret::new(OsRng); let alice_secret = EphemeralSecret::new(OsRng);
let alice_public = PublicKey::from(&alice_secret); let alice_public = PublicKey::from(&alice_secret);
let bob_secret = EphemeralSecret::new(OsRng); let bob_secret = EphemeralSecret::new(OsRng);
let bob_public = PublicKey::from(&bob_secret); let bob_public = PublicKey::from(&bob_secret);
let alice_shared_secret = alice_secret.diffie_hellman(&bob_public); let alice_shared_secret = alice_secret.diffie_hellman(&bob_public);
let bob_shared_secret = bob_secret.diffie_hellman(&alice_public); let bob_shared_secret = bob_secret.diffie_hellman(&alice_public);
println!("Alice public key : {}", hex::encode(alice_public.as_bytes()));
println!("Bob public key : {}", hex::encode(bob_public.as_bytes()));
println!("Alice shared secret: {}", hex::encode(alice_shared_secret.as_bytes())); println!("Alice shared secret: {}", hex::encode(alice_shared_secret.as_bytes()));
println!("Bob shared secret: {}", hex::encode(bob_shared_secret.as_bytes())); println!("Bob shared secret: {}", hex::encode(bob_shared_secret.as_bytes()));
println!("{}", "-".repeat(88));
let public_key_bytes = hex::decode("7FEBAAB0D80CED24730B613F3D86924560EBCF13A838DEBC065F63C69C24C61E").unwrap();
let public_key_bytes: [u8; 32] = public_key_bytes.try_into().unwrap();
let public_key_card = PublicKey::from(public_key_bytes);
println!("Public key card: {}", hex::encode(public_key_card.as_bytes()));
let new_secret = EphemeralSecret::new(OsRng);
let new_public = PublicKey::from(&new_secret);
println!("New public key: {}", hex::encode(new_public.as_bytes()));
let new_card_shared_secret = new_secret.diffie_hellman(&public_key_card);
println!("New&card shared secret: {}", hex::encode(new_card_shared_secret.as_bytes()));
} }