added serde support

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "chacha20stream"
-version = "1.0.2"
+version = "1.0.3"
 keywords = ["chacha20_poly1305", "stream", "wrapper", "encryption", "decryption"]
 description = "A writable wrapper stream for encryption and decryption with the stream cipher chacha20_poly1305"
 homepage = "https://git.flanchan.moe/flanchan/chacha20stream"
@@ -24,6 +24,7 @@ base64 = "0.13"
 getrandom = "0.2"
 openssl = "0.10"
 pin-project = {version = "1.0.6", optional = true}
+serde = {version = "1.0", features = ["derive"], optional = true}
 smallvec = {version = "1.6", features=["union"], optional = true}
 tokio = {version = "0.2", optional = true}
 

src/key.rs

@@ -40,6 +40,7 @@ use crate::ext::*;
 /// assert_eq!(key_encoded.parse::<Key>().unwrap(), key);
 /// ```
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Copy, Default)]
+#[cfg_attr(feature="serde", derive(serde::Serialize, serde::Deserialize))]
 #[repr(transparent)]
 pub struct Key([u8; KEY_SIZE]);
 
@@ -75,6 +76,7 @@ pub struct Key([u8; KEY_SIZE]);
 /// assert_eq!(iv_encoded.parse::<IV>().unwrap(), iv);
 /// ```
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Copy, Default)]
+#[cfg_attr(feature="serde", derive(serde::Serialize, serde::Deserialize))]
 #[repr(transparent)]
 pub struct IV([u8; IV_SIZE]);
 

src/lib.rs

@@ -36,6 +36,7 @@ fn decrypt_message_to<W: Write + ?Sized>(output: &mut W, encrypted: &[u8], key:
 * **smallvec** - Use `smallvec` crate to store the in-memory buffer on the stack if it's smalle enough (*default*)
 * **async** - Enable `AsyncSink` with tokio 0.2 `AsyncWrite`
 * **explicit_clear** - Explicitly clear in-memory buffer after operations.
+* **serde** - Enable `Key` and `IV` to be de/serialised with Serde.
 */
 
 #![cfg_attr(nightly, feature(asm))]