things

rnex-core/src/prudp/encryption.rs

@@ -0,0 +1,20 @@
+use std::sync::LazyLock;
+
+use rc4::{Key, StreamCipher};
+use typenum::U5;
+
+pub struct EncryptionPair<T: StreamCipher + Send> {
+    pub send: T,
+    pub recv: T,
+}
+
+impl<T: StreamCipher + Send> EncryptionPair<T> {
+    pub fn init_both<F: Fn() -> T>(func: F) -> Self {
+        Self {
+            recv: func(),
+            send: func(),
+        }
+    }
+}
+
+pub static DEFAULT_KEY: LazyLock<Key<U5>> = LazyLock::new(|| Key::from(*b"CD&ML"));