diff options
Diffstat (limited to 'src/script/sign.h')
| -rw-r--r-- | src/script/sign.h | 48 |
1 files changed, 43 insertions, 5 deletions
diff --git a/src/script/sign.h b/src/script/sign.h index 2fc4575e59..20c7203b26 100644 --- a/src/script/sign.h +++ b/src/script/sign.h @@ -24,6 +24,11 @@ struct KeyOriginInfo { unsigned char fingerprint[4]; std::vector<uint32_t> path; + + friend bool operator==(const KeyOriginInfo& a, const KeyOriginInfo& b) + { + return std::equal(std::begin(a.fingerprint), std::end(a.fingerprint), std::begin(b.fingerprint)) && a.path == b.path; + } }; /** An interface to be implemented by keystores that support signing. */ @@ -34,7 +39,7 @@ public: virtual bool GetCScript(const CScriptID &scriptid, CScript& script) const { return false; } virtual bool GetPubKey(const CKeyID &address, CPubKey& pubkey) const { return false; } virtual bool GetKey(const CKeyID &address, CKey& key) const { return false; } - virtual bool GetKeyOrigin(const CKeyID& id, KeyOriginInfo& info) const { return false; } + virtual bool GetKeyOrigin(const CKeyID& keyid, KeyOriginInfo& info) const { return false; } }; extern const SigningProvider& DUMMY_SIGNING_PROVIDER; @@ -58,10 +63,12 @@ struct FlatSigningProvider final : public SigningProvider { std::map<CScriptID, CScript> scripts; std::map<CKeyID, CPubKey> pubkeys; + std::map<CKeyID, KeyOriginInfo> origins; std::map<CKeyID, CKey> keys; bool GetCScript(const CScriptID& scriptid, CScript& script) const override; bool GetPubKey(const CKeyID& keyid, CPubKey& pubkey) const override; + bool GetKeyOrigin(const CKeyID& keyid, KeyOriginInfo& info) const override; bool GetKey(const CKeyID& keyid, CKey& key) const override; }; @@ -204,6 +211,9 @@ template<typename Stream> void SerializeHDKeypaths(Stream& s, const std::map<CPubKey, KeyOriginInfo>& hd_keypaths, uint8_t type) { for (auto keypath_pair : hd_keypaths) { + if (!keypath_pair.first.IsValid()) { + throw std::ios_base::failure("Invalid CPubKey being serialized"); + } SerializeToVector(s, type, MakeSpan(keypath_pair.first)); WriteCompactSize(s, (keypath_pair.second.path.size() + 1) * sizeof(uint32_t)); s << keypath_pair.second.fingerprint; @@ -300,6 +310,7 @@ struct PSBTInput template <typename Stream> inline void Unserialize(Stream& s) { // Read loop + bool found_sep = false; while(!s.empty()) { // Read std::vector<unsigned char> key; @@ -307,7 +318,10 @@ struct PSBTInput // the key is empty if that was actually a separator byte // This is a special case for key lengths 0 as those are not allowed (except for separator) - if (key.empty()) return; + if (key.empty()) { + found_sep = true; + break; + } // First byte of key is the type unsigned char type = key[0]; @@ -422,6 +436,10 @@ struct PSBTInput break; } } + + if (!found_sep) { + throw std::ios_base::failure("Separator is missing at the end of an input map"); + } } template <typename Stream> @@ -475,6 +493,7 @@ struct PSBTOutput template <typename Stream> inline void Unserialize(Stream& s) { // Read loop + bool found_sep = false; while(!s.empty()) { // Read std::vector<unsigned char> key; @@ -482,7 +501,10 @@ struct PSBTOutput // the key is empty if that was actually a separator byte // This is a special case for key lengths 0 as those are not allowed (except for separator) - if (key.empty()) return; + if (key.empty()) { + found_sep = true; + break; + } // First byte of key is the type unsigned char type = key[0]; @@ -527,6 +549,10 @@ struct PSBTOutput } } } + + if (!found_sep) { + throw std::ios_base::failure("Separator is missing at the end of an output map"); + } } template <typename Stream> @@ -548,6 +574,7 @@ struct PartiallySignedTransaction bool IsSane() const; PartiallySignedTransaction() {} PartiallySignedTransaction(const PartiallySignedTransaction& psbt_in) : tx(psbt_in.tx), inputs(psbt_in.inputs), outputs(psbt_in.outputs), unknown(psbt_in.unknown) {} + explicit PartiallySignedTransaction(const CTransaction& tx); // Only checks if they refer to the same transaction friend bool operator==(const PartiallySignedTransaction& a, const PartiallySignedTransaction &b) @@ -602,6 +629,7 @@ struct PartiallySignedTransaction } // Read global data + bool found_sep = false; while(!s.empty()) { // Read std::vector<unsigned char> key; @@ -609,7 +637,10 @@ struct PartiallySignedTransaction // the key is empty if that was actually a separator byte // This is a special case for key lengths 0 as those are not allowed (except for separator) - if (key.empty()) break; + if (key.empty()) { + found_sep = true; + break; + } // First byte of key is the type unsigned char type = key[0]; @@ -649,6 +680,10 @@ struct PartiallySignedTransaction } } + if (!found_sep) { + throw std::ios_base::failure("Separator is missing at the end of the global map"); + } + // Make sure that we got an unsigned tx if (!tx) { throw std::ios_base::failure("No unsigned transcation was provided"); @@ -703,8 +738,11 @@ bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreato bool SignSignature(const SigningProvider &provider, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, const CAmount& amount, int nHashType); bool SignSignature(const SigningProvider &provider, const CTransaction& txFrom, CMutableTransaction& txTo, unsigned int nIn, int nHashType); +/** Checks whether a PSBTInput is already signed. */ +bool PSBTInputSigned(PSBTInput& input); + /** Signs a PSBTInput, verifying that all provided data matches what is being signed. */ -bool SignPSBTInput(const SigningProvider& provider, const CMutableTransaction& tx, PSBTInput& input, int index, int sighash = SIGHASH_ALL); +bool SignPSBTInput(const SigningProvider& provider, PartiallySignedTransaction& psbt, int index, int sighash = SIGHASH_ALL); /** Extract signature data from a transaction input, and insert it. */ SignatureData DataFromTransaction(const CMutableTransaction& tx, unsigned int nIn, const CTxOut& txout); |