feat: works

examples/encrypt_and_decrypt.rs

@@ -0,0 +1,39 @@
+use chacha20_poly1305_stream::{ChaCha20Poly1305StreamDecryptor, ChaCha20Poly1305StreamEncryptor};
+
+fn main() {
+    encrypt();
+    decrypt();
+}
+
+fn encrypt() {
+    // IMPORTANT! key and nonce SHOULD generate by random
+    let key = [0u8; 32];
+    let nonce = [0; 12];
+
+    let mut encryptor = ChaCha20Poly1305StreamEncryptor::new(&key, &nonce).unwrap();
+
+    let mut ciphertext = vec![];
+    ciphertext.extend_from_slice(&encryptor.update(b"Hello "));
+    ciphertext.extend_from_slice(&encryptor.update(b" World"));
+    ciphertext.extend_from_slice(&encryptor.update(b"!"));
+    let (last_block, tag) = encryptor.finalize();
+    ciphertext.extend_from_slice(&last_block);
+    ciphertext.extend_from_slice(&tag);
+
+    println!("Ciphertext: {}", hex::encode(&ciphertext));
+}
+
+fn decrypt() {
+    // IMPORTANT! key and nonce SHOULD generate by random
+    let key = [0u8; 32];
+    let nonce = [0; 12];
+    let cipher_text = hex::decode("d7628bd23a71182df7c8fb1852d3dc42b88a61e2fce340d9c5b323884d").unwrap();
+
+    let mut decryptor = ChaCha20Poly1305StreamDecryptor::new(&key, &nonce).unwrap();
+
+    let mut plaintext = decryptor.update(&cipher_text);
+    let last_block = decryptor.finalize().unwrap();
+    plaintext.extend_from_slice(&last_block);
+
+    println!("Plaintext : {}", String::from_utf8_lossy(&plaintext));
+}