add traits to ecashcredential

common/nym_offline_compact_ecash/src/impls/clone.rs

@@ -1,4 +1,5 @@
 use crate::scheme::withdrawal::WithdrawalRequest;
+use crate::scheme::EcashCredential;
 use crate::traits::Bytable;
 
 macro_rules! impl_clone {
@@ -12,3 +13,4 @@ macro_rules! impl_clone {
 }
 
 impl_clone!(WithdrawalRequest);
+impl_clone!(EcashCredential);

common/nym_offline_compact_ecash/src/impls/serde.rs

@@ -1,4 +1,6 @@
+use crate::scheme::EcashCredential;
 use crate::traits::Base58;
+use crate::VerificationKeyAuth;
 use serde::de::Unexpected;
 use serde::{de::Error, de::Visitor, Deserialize, Deserializer, Serialize, Serializer};
 use std::fmt;
@@ -45,3 +47,5 @@ macro_rules! impl_serde {
 }
 
 impl_serde!(WithdrawalRequest, V1);
+impl_serde!(EcashCredential, V2);
+impl_serde!(VerificationKeyAuth, V3);

common/nym_offline_compact_ecash/src/scheme/mod.rs

@@ -702,3 +702,15 @@ impl TryFrom<&[u8]> for EcashCredential {
         })
     }
 }
+
+impl Bytable for EcashCredential {
+    fn to_byte_vec(&self) -> Vec<u8> {
+        self.to_bytes().to_vec()
+    }
+
+    fn try_from_byte_slice(slice: &[u8]) -> std::result::Result<Self, CompactEcashError> {
+        Self::try_from(slice)
+    }
+}
+
+impl Base58 for EcashCredential {}