Merge branch 'master' of https://git.efi.th-nuernberg.de/gitea/hopfma/appsec

src/bin/client.rs

@@ -1,12 +1,12 @@
-use std::io::Write;
-use std::net::TcpStream;
 use crypto_box::{
     aead::{Aead, AeadCore, OsRng},
-    SalsaBox, PublicKey, SecretKey
+    PublicKey, SalsaBox, SecretKey,
 };
+use std::io::Write;
+use std::net::TcpStream;
 
 fn main() {
-    let port: u32 = 7878;
+    let port: u32 = 7878; // Port Server
                           //let stream = TcpStream::connect("172.30.16.1:8080");
                           //let stream = TcpStream::connect("27.0.0.1:8080");
     match TcpStream::connect(format!("localhost:{}", port)) {
@@ -14,10 +14,9 @@ fn main() {
             println!("Successfully connected to server");
 
             let bob_init_pub_key = PublicKey::from([
-                0xe8, 0x98, 0xc, 0x86, 0xe0, 0x32, 0xf1, 0xeb,
-                0x29, 0x75, 0x5, 0x2e, 0x8d, 0x65, 0xbd, 0xdd,
-                0x15, 0xc3, 0xb5, 0x96, 0x41, 0x17, 0x4e, 0xc9,
-                0x67, 0x8a, 0x53, 0x78, 0x9d, 0x92, 0xc7, 0x54,
+                0xe8, 0x98, 0xc, 0x86, 0xe0, 0x32, 0xf1, 0xeb, 0x29, 0x75, 0x5, 0x2e, 0x8d, 0x65,
+                0xbd, 0xdd, 0x15, 0xc3, 0xb5, 0x96, 0x41, 0x17, 0x4e, 0xc9, 0x67, 0x8a, 0x53, 0x78,
+                0x9d, 0x92, 0xc7, 0x54,
             ]);
 
             // Generate a random secret key.
@@ -59,11 +58,16 @@ fn main() {
                         //
 
                         // Decrypt the message, using the same randomly generated nonce
-                        let decrypted_plaintext = salsa_box.decrypt(&nonce, &ciphertext[..]).expect("Fehler");
-                        let dec_plain_plaintext = std::str::from_utf8(&*decrypted_plaintext).expect("Nö");
+                        let decrypted_plaintext =
+                            salsa_box.decrypt(&nonce, &ciphertext[..]).expect("Fehler");
+                        let dec_plain_plaintext =
+                            std::str::from_utf8(&*decrypted_plaintext).expect("Nö");
                         assert_eq!(&plaintext[..], &decrypted_plaintext[..]);
 
-                        println!("Sent {0:?} as cypher: {1:?}, decrypted: {2:?}, {3}", plaintext, ciphertext, decrypted_plaintext, dec_plain_plaintext);
+                        println!(
+                            "Sent {0:?} as cypher: {1:?}, decrypted: {2:?}, {3}",
+                            plaintext, ciphertext, decrypted_plaintext, dec_plain_plaintext
+                        );
                     }
                     Err(error) => {
                         println!("error: {error}");
@@ -78,3 +82,17 @@ fn main() {
     }
     println!("Terminated.");
 }
+
+fn generate_box(partner_public_key: PublicKey) -> (SalsaBox, PublicKey) {
+    // Generate a random secret key.
+    // NOTE: The secret key bytes can be accessed by calling `secret_key.as_bytes()`
+    let own_secret_key = SecretKey::generate(&mut OsRng);
+
+    // Get the public key for the secret key we just generated
+    let own_public_key = own_secret_key.public_key().clone();
+
+    // Create a `SalsaBox` by performing Diffie-Hellman key agreement between
+    // the two keys.
+    let salsa_box = SalsaBox::new(&partner_public_key, &own_secret_key);
+    (salsa_box, own_public_key)
+}