add bip32 pubkey serialization

CExtPubKey should be serializable like CPubKey

1 files changed, 19 insertions, 2 deletions

diff --git a/src/key.h b/src/key.h
index 6c820d49cd..b4f48d59f5 100644
--- a/src/key.h
+++ b/src/key.h
@@ -164,11 +164,28 @@ struct CExtKey {
                a.chaincode == b.chaincode && a.key == b.key;
     }
 
-    void Encode(unsigned char code[74]) const;
-    void Decode(const unsigned char code[74]);
+    void Encode(unsigned char code[BIP32_EXTKEY_SIZE]) const;
+    void Decode(const unsigned char code[BIP32_EXTKEY_SIZE]);
     bool Derive(CExtKey& out, unsigned int nChild) const;
     CExtPubKey Neuter() const;
     void SetMaster(const unsigned char* seed, unsigned int nSeedLen);
+    template <typename Stream>
+    void Serialize(Stream& s, int nType, int nVersion) const
+    {
+        unsigned int len = BIP32_EXTKEY_SIZE;
+        ::WriteCompactSize(s, len);
+        unsigned char code[BIP32_EXTKEY_SIZE];
+        Encode(code);
+        s.write((const char *)&code[0], len);
+    }
+    template <typename Stream>
+    void Unserialize(Stream& s, int nType, int nVersion)
+    {
+        unsigned int len = ::ReadCompactSize(s);
+        unsigned char code[BIP32_EXTKEY_SIZE];
+        s.read((char *)&code[0], len);
+        Decode(code);
+    }
 };
 
 /** Initialize the elliptic curve support. May not be called twice without calling ECC_Stop first. */