diff options
author | Wladimir J. van der Laan <laanwj@gmail.com> | 2016-04-15 07:56:22 +0200 |
---|---|---|
committer | Wladimir J. van der Laan <laanwj@gmail.com> | 2016-04-15 07:59:38 +0200 |
commit | 48c5adfbcea2006dc55011a3d7f27e30fbe4a6b3 (patch) | |
tree | aa97931757b0d32416152502e9cf83060c7ece2c | |
parent | 53adc8310da32484e7b5be2070c2120acb17fddd (diff) | |
parent | 90604f16af63ec066d6561337f476ccd8acec326 (diff) | |
download | bitcoin-48c5adfbcea2006dc55011a3d7f27e30fbe4a6b3.tar.xz |
Merge #6215: add bip32 pub key serialization
90604f1 add bip32 pubkey serialization (Jonas Schnelli)
-rw-r--r-- | src/base58.h | 4 | ||||
-rw-r--r-- | src/key.cpp | 6 | ||||
-rw-r--r-- | src/key.h | 21 | ||||
-rw-r--r-- | src/pubkey.cpp | 6 | ||||
-rw-r--r-- | src/pubkey.h | 30 | ||||
-rw-r--r-- | src/test/bip32_tests.cpp | 16 |
6 files changed, 71 insertions, 12 deletions
diff --git a/src/base58.h b/src/base58.h index a3980118aa..cccebc9e0e 100644 --- a/src/base58.h +++ b/src/base58.h @@ -164,7 +164,7 @@ public: CBitcoinExtKeyBase() {} }; -typedef CBitcoinExtKeyBase<CExtKey, 74, CChainParams::EXT_SECRET_KEY> CBitcoinExtKey; -typedef CBitcoinExtKeyBase<CExtPubKey, 74, CChainParams::EXT_PUBLIC_KEY> CBitcoinExtPubKey; +typedef CBitcoinExtKeyBase<CExtKey, BIP32_EXTKEY_SIZE, CChainParams::EXT_SECRET_KEY> CBitcoinExtKey; +typedef CBitcoinExtKeyBase<CExtPubKey, BIP32_EXTKEY_SIZE, CChainParams::EXT_PUBLIC_KEY> CBitcoinExtPubKey; #endif // BITCOIN_BASE58_H diff --git a/src/key.cpp b/src/key.cpp index 28ba5144e4..6a3d9aa140 100644 --- a/src/key.cpp +++ b/src/key.cpp @@ -275,7 +275,7 @@ CExtPubKey CExtKey::Neuter() const { return ret; } -void CExtKey::Encode(unsigned char code[74]) const { +void CExtKey::Encode(unsigned char code[BIP32_EXTKEY_SIZE]) const { code[0] = nDepth; memcpy(code+1, vchFingerprint, 4); code[5] = (nChild >> 24) & 0xFF; code[6] = (nChild >> 16) & 0xFF; @@ -286,12 +286,12 @@ void CExtKey::Encode(unsigned char code[74]) const { memcpy(code+42, key.begin(), 32); } -void CExtKey::Decode(const unsigned char code[74]) { +void CExtKey::Decode(const unsigned char code[BIP32_EXTKEY_SIZE]) { nDepth = code[0]; memcpy(vchFingerprint, code+1, 4); nChild = (code[5] << 24) | (code[6] << 16) | (code[7] << 8) | code[8]; memcpy(chaincode.begin(), code+9, 32); - key.Set(code+42, code+74, true); + key.Set(code+42, code+BIP32_EXTKEY_SIZE, true); } bool ECC_InitSanityCheck() { @@ -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. */ diff --git a/src/pubkey.cpp b/src/pubkey.cpp index db06a89285..be4ee27cd4 100644 --- a/src/pubkey.cpp +++ b/src/pubkey.cpp @@ -246,7 +246,7 @@ bool CPubKey::Derive(CPubKey& pubkeyChild, ChainCode &ccChild, unsigned int nChi return true; } -void CExtPubKey::Encode(unsigned char code[74]) const { +void CExtPubKey::Encode(unsigned char code[BIP32_EXTKEY_SIZE]) const { code[0] = nDepth; memcpy(code+1, vchFingerprint, 4); code[5] = (nChild >> 24) & 0xFF; code[6] = (nChild >> 16) & 0xFF; @@ -256,12 +256,12 @@ void CExtPubKey::Encode(unsigned char code[74]) const { memcpy(code+41, pubkey.begin(), 33); } -void CExtPubKey::Decode(const unsigned char code[74]) { +void CExtPubKey::Decode(const unsigned char code[BIP32_EXTKEY_SIZE]) { nDepth = code[0]; memcpy(vchFingerprint, code+1, 4); nChild = (code[5] << 24) | (code[6] << 16) | (code[7] << 8) | code[8]; memcpy(chaincode.begin(), code+9, 32); - pubkey.Set(code+41, code+74); + pubkey.Set(code+41, code+BIP32_EXTKEY_SIZE); } bool CExtPubKey::Derive(CExtPubKey &out, unsigned int nChild) const { diff --git a/src/pubkey.h b/src/pubkey.h index e1a17b6582..db5444ea9d 100644 --- a/src/pubkey.h +++ b/src/pubkey.h @@ -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 diff --git a/src/test/bip32_tests.cpp b/src/test/bip32_tests.cpp index ce29e692db..7f1c2a32dd 100644 --- a/src/test/bip32_tests.cpp +++ b/src/test/bip32_tests.cpp @@ -117,6 +117,22 @@ void RunTest(const TestVector &test) { } key = keyNew; pubkey = pubkeyNew; + + CDataStream ssPub(SER_DISK, CLIENT_VERSION); + ssPub << pubkeyNew; + BOOST_CHECK(ssPub.size() == 75); + + CDataStream ssPriv(SER_DISK, CLIENT_VERSION); + ssPriv << keyNew; + BOOST_CHECK(ssPriv.size() == 75); + + CExtPubKey pubCheck; + CExtKey privCheck; + ssPub >> pubCheck; + ssPriv >> privCheck; + + BOOST_CHECK(pubCheck == pubkeyNew); + BOOST_CHECK(privCheck == keyNew); } } |