Differential D3265 Diff 9262 src/script/sigencoding.cpp

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src/script/sigencoding.cpp

Show First 20 Lines • Show All 167 Lines • ▼ Show 20 Lines	static bool CheckRawECDSASignatureEncoding(const slicedvaltype &sig,

if ((flags & SCRIPT_VERIFY_LOW_S) && !CPubKey::CheckLowS(sig)) {		if ((flags & SCRIPT_VERIFY_LOW_S) && !CPubKey::CheckLowS(sig)) {
return set_error(serror, SCRIPT_ERR_SIG_HIGH_S);		return set_error(serror, SCRIPT_ERR_SIG_HIGH_S);
}		}

return true;		return true;
}		}

		static bool CheckRawSchnorrSignatureEncoding(const slicedvaltype &sig,
		uint32_t flags,
		ScriptError *serror) {
		if (sig.size() == 64) {
		// In a generic-signature context, 64-byte signatures are interpreted
		// as Schnorr signatures (which are never incorrectly encoded).
		return true;
		}
		return set_error(serror, SCRIPT_ERR_SIG_ECDSA);
		}

static bool CheckRawSignatureEncoding(const slicedvaltype &sig, uint32_t flags,		static bool CheckRawSignatureEncoding(const slicedvaltype &sig, uint32_t flags,
ScriptError *serror) {		ScriptError *serror) {
if (sig.size() == 64) {		if (sig.size() == 64) {
// In a generic-signature context, 64-byte signatures are interpreted		// In a generic-signature context, 64-byte signatures are interpreted
// as Schnorr signatures (which are never incorrectly encoded).		// as Schnorr signatures (which are never incorrectly encoded).
return true;		return true;
}		}
return CheckRawECDSASignatureEncoding(sig, flags, serror);		return CheckRawECDSASignatureEncoding(sig, flags, serror);
▲ Show 20 Lines • Show All 69 Lines • ▼ Show 20 Lines	return CheckTransactionSignatureEncodingImpl(
vchSig, flags, serror,		vchSig, flags, serror,
[](const slicedvaltype &templateSig, uint32_t templateFlags,		[](const slicedvaltype &templateSig, uint32_t templateFlags,
ScriptError *templateSerror) {		ScriptError *templateSerror) {
return CheckRawECDSASignatureEncoding(templateSig, templateFlags,		return CheckRawECDSASignatureEncoding(templateSig, templateFlags,
templateSerror);		templateSerror);
});		});
}		}

		bool CheckTransactionSchnorrSignatureEncoding(const valtype &vchSig,
		uint32_t flags,
		ScriptError *serror) {
		return CheckTransactionSignatureEncodingImpl(
		vchSig, flags, serror,
		[](const slicedvaltype &templateSig, uint32_t templateFlags,
		ScriptError *templateSerror) {
		return CheckRawSchnorrSignatureEncoding(templateSig, templateFlags,
		templateSerror);
		});
		}

static bool IsCompressedOrUncompressedPubKey(const valtype &vchPubKey) {		static bool IsCompressedOrUncompressedPubKey(const valtype &vchPubKey) {
switch (vchPubKey.size()) {		switch (vchPubKey.size()) {
case 33:		case 33:
// Compressed public key: must start with 0x02 or 0x03.		// Compressed public key: must start with 0x02 or 0x03.
return vchPubKey[0] == 0x02 \|\| vchPubKey[0] == 0x03;		return vchPubKey[0] == 0x02 \|\| vchPubKey[0] == 0x03;

case 65:		case 65:
// Non-compressed public key: must start with 0x04.		// Non-compressed public key: must start with 0x04.
Show All 34 Lines