nostr: add ConversationKey::new

Signed-off-by: Yuki Kishimoto <[email protected]>

Author: yukibtc

CHANGELOG.md

@@ -50,6 +50,7 @@
 * nostr: add `EventId::LEN` const ([Yuki Kishimoto])
 * nostr: add `UnsignedEvent::ensure_id` method ([Yuki Kishimoto])
 * nostr: add missing `payload` arg to `EventBuilder::job_result` ([Yuki Kishimoto])
+* nostr: add `ConversationKey::new` ([Yuki Kishimoto])
 * pool: add `RelayPoolNotification::Authenticated` variant ([Yuki Kishimoto])
 * sdk: add `Client::gift_wrap_to` and `Client::send_private_msg_to` ([reyamir])
 * sdk: add option to autoconnect relay on `Client::add_relay` method call ([Yuki Kishimoto])

crates/nostr/src/nips/nip44/mod.rs

@@ -107,7 +107,7 @@ impl TryFrom<u8> for Version {
     }
 }
 
-/// Encrypt - EXPERIMENTAL
+/// Encrypt
 #[inline]
 #[cfg(feature = "std")]
 pub fn encrypt<T>(
@@ -122,7 +122,7 @@ where
     encrypt_with_rng(&mut OsRng, secret_key, public_key, content, version)
 }
 
-/// Encrypt - EXPERIMENTAL
+/// Encrypt
 pub fn encrypt_with_rng<R, T>(
     rng: &mut R,
     secret_key: &SecretKey,

crates/nostr/src/nips/nip44/v2.rs

@@ -135,6 +135,12 @@ impl Deref for ConversationKey {
 }
 
 impl ConversationKey {
+    /// Construct conversation key from 32-byte array
+    #[inline]
+    pub fn new(bytes: [u8; 32]) -> Self {
+        Self(Hmac::from_byte_array(bytes))
+    }
+
     /// Derive Conversation Key
     #[inline]
     pub fn derive(secret_key: &SecretKey, public_key: &PublicKey) -> Self {