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example_serde_encrypt_shared_key_owned_data.rs
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example_serde_encrypt_shared_key_owned_data.rs
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//! Shows how to use SerdeEncryptSharedKey.
use serde::{Deserialize, Serialize};
use serde_encrypt::{
serialize::impls::BincodeSerializer, shared_key::SharedKey, traits::SerdeEncryptSharedKey,
AsSharedKey, EncryptedMessage, Error,
};
#[derive(Debug, Serialize, Deserialize)]
struct Message {
content: String,
sender: String,
}
impl SerdeEncryptSharedKey for Message {
type S = BincodeSerializer<Self>;
}
fn alice_sends_secret_message(shared_key: &SharedKey) -> Result<Vec<u8>, Error> {
let msg = Message {
content: "I ❤️ you.".to_string(),
sender: "Alice".to_string(),
};
let encrypted_message = msg.encrypt(shared_key)?;
Ok(encrypted_message.serialize())
}
fn bob_receives_secret_message(
encrypted_serialized: Vec<u8>,
shared_key: &SharedKey,
) -> Result<Message, Error> {
let encrypted_message = EncryptedMessage::deserialize(encrypted_serialized)?;
Message::decrypt_owned(&encrypted_message, shared_key)
}
#[test]
fn test_serde_encrypt_shared_key() -> Result<(), Error> {
// Both Alice and Bob have this key secretly.
const SHARED_KEY: [u8; 32] = [42; 32];
let shared_key = SharedKey::from_array(SHARED_KEY);
let secret_message = alice_sends_secret_message(&shared_key)?;
let revealed_message = bob_receives_secret_message(secret_message, &shared_key)?;
// Congrats 🎉👏
assert_eq!(revealed_message.content, "I ❤️ you.");
assert_eq!(revealed_message.sender, "Alice");
Ok(())
}