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add bip32 pubkey serialization

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CExtPubKey should be serializable like CPubKey
This commit is contained in:
Jonas Schnelli
2015-06-01 16:35:19 +02:00
committed by Jonas Schnelli
parent e6a4d48a9b
commit 90604f16af
6 changed files with 71 additions and 12 deletions
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30
src/pubkey.h
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@@ -23,6 +23,8 @@
* script supports up to 75 for single byte push
*/
const unsigned int BIP32_EXTKEY_SIZE = 74;
/** A reference to a CKey: the Hash160 of its serialized public key */
class CKeyID : public uint160
{
@@ -205,9 +207,33 @@ struct CExtPubKey {
a.chaincode == b.chaincode && a.pubkey == b.pubkey;
}
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(CExtPubKey& out, unsigned int nChild) const;
unsigned int GetSerializeSize(int nType, int nVersion) const
{
return BIP32_EXTKEY_SIZE+1; //add one byte for the size (compact int)
}
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];
if (len != BIP32_EXTKEY_SIZE)
throw std::runtime_error("Invalid extended key size\n");
s.read((char *)&code[0], len);
Decode(code);
}
};
/** Users of this module must hold an ECCVerifyHandle. The constructor and