Stub out transparent addresses, keys with secp256k1

zebra-chain/src/addresses.rs

@@ -0,0 +1,6 @@
+//! Address types.
+
+pub enum TransparentAddress {
+    PayToScriptHash,
+    PayToPublicKeyHash,
+}

zebra-chain/src/keys.rs

@@ -2,3 +2,4 @@
 
 mod sapling;
 mod sprout;
+mod transparent;

zebra-chain/src/keys/sprout.rs

@@ -13,6 +13,6 @@ use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize}
 #[cfg(test)]
 proptest! {
 
-    #[test]
-    fn test() {}
+    // #[test]
+    // fn test() {}
 }

zebra-chain/src/keys/transparent.rs

@@ -0,0 +1,20 @@
+use std::io;
+
+use secp256k1::PublicKey;
+
+use crate::serialization::{
+    ReadZcashExt, SerializationError, WriteZcashExt, ZcashDeserialize, ZcashSerialize,
+};
+
+impl ZcashSerialize for PublicKey {
+    fn zcash_serialize<W: io::Write>(&self, mut writer: W) -> Result<(), io::Error> {
+        writer.write_all(&self.serialize())?;
+        Ok(())
+    }
+}
+
+impl ZcashDeserialize for PublicKey {
+    fn zcash_deserialize<R: io::Read>(mut _reader: R) -> Result<Self, SerializationError> {
+        unimplemented!();
+    }
+}