Add type assertions for sig/pub/privkey implemenetations

priv_key.go

@@ -64,6 +64,8 @@ var privKeyMapper = data.NewMapper(PrivKey{}).
 
 //-------------------------------------
 
+var _ PrivKeyInner = PrivKeyEd25519{}
+
 // Implements PrivKey
 type PrivKeyEd25519 [64]byte
 
@@ -149,6 +151,8 @@ func GenPrivKeyEd25519FromSecret(secret []byte) PrivKeyEd25519 {
 
 //-------------------------------------
 
+var _ PrivKeyInner = PrivKeySecp256k1{}
+
 // Implements PrivKey
 type PrivKeySecp256k1 [32]byte
 

pub_key.go

@@ -67,6 +67,8 @@ var pubKeyMapper = data.NewMapper(PubKey{}).
 
 //-------------------------------------
 
+var _ PubKeyInner = PubKeyEd25519{}
+
 // Implements PubKeyInner
 type PubKeyEd25519 [32]byte
 
@@ -146,6 +148,8 @@ func (pubKey PubKeyEd25519) Wrap() PubKey {
 
 //-------------------------------------
 
+var _ PubKeyInner = PubKeySecp256k1{}
+
 // Implements PubKey.
 // Compressed pubkey (just the x-cord),
 // prefixed with 0x02 or 0x03, depending on the y-cord.

signature.go

@@ -62,6 +62,8 @@ var sigMapper = data.NewMapper(Signature{}).
 
 //-------------------------------------
 
+var _ SignatureInner = SignatureEd25519{}
+
 // Implements Signature
 type SignatureEd25519 [64]byte
 
@@ -100,6 +102,8 @@ func (sig SignatureEd25519) Wrap() Signature {
 
 //-------------------------------------
 
+var _ SignatureInner = SignatureSecp256k1{}
+
 // Implements Signature
 type SignatureSecp256k1 []byte