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Differential D2455 Diff 7044 src/script/sigencoding.cpp

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src/script/sigencoding.cpp

Show First 20 Lines • Show All 149 Lines • ▼ Show 20 Lines if (lenS > 1 && (sig[startS + 2] == 0x00) && !(sig[startS + 3] & 0x80)) {
return false; return false;
} }
return true; return true;
} }
static bool CheckRawSignatureEncoding(const slicedvaltype &sig, uint32_t flags, static bool CheckRawSignatureEncoding(const slicedvaltype &sig, uint32_t flags,
ScriptError *serror) { ScriptError *serror) {
if ((flags & SCRIPT_ENABLE_SCHNORR) && (sig.size() == 64)) {
// Schnorr signatures have no ambiguity over encoding.
return true;
}
if ((flags & (SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S | if ((flags & (SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S |
SCRIPT_VERIFY_STRICTENC)) && SCRIPT_VERIFY_STRICTENC)) &&
!IsValidSignatureEncoding(sig)) { !IsValidSignatureEncoding(sig)) {
return set_error(serror, SCRIPT_ERR_SIG_DER); return set_error(serror, SCRIPT_ERR_SIG_DER);
} }
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);
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