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feat: add signature verification cache for export signatures

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Add cryptographic verification of export signatures as they arrive:
- stashTxnData() caches serialized txn for verification
- verifyAndAddSignature() verifies against cached data, rejects invalid
- isSignatureVerified() / verifySignature() for Transactor fallback
- Cleanup methods updated to clear verification cache

Also removes leftover debug std::cerr from OpenView, STObject, and tests.
This commit is contained in:
Nicholas Dudfield
2026-01-27 18:03:55 +07:00
parent b28793b0fa
commit 034010716e
7 changed files with 278 additions and 93 deletions
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53
src/test/app/Export_test.cpp
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@@ -528,59 +528,6 @@ struct Export_test : public beast::unit_test::suite
{
auto const exportedDirKey = keylet::exportedDir();
bool dirEmpty = dirIsEmpty(*env.current(), exportedDirKey);
// Debug: if not empty, inspect what's in there
if (!dirEmpty && expectCleanup)
{
std::cerr << "=== DEBUG: exportedDir not empty ==="
<< std::endl;
std::shared_ptr<SLE const> sleDirNode{};
unsigned int uDirEntry{0};
uint256 dirEntry{beast::zero};
if (cdirFirst(
*env.current(),
exportedDirKey.key,
sleDirNode,
uDirEntry,
dirEntry))
{
do
{
auto sleItem =
env.current()->read(Keylet{ltCHILD, dirEntry});
if (sleItem)
{
std::cerr << " Entry: " << dirEntry << std::endl;
std::cerr << " LedgerSeq: "
<< sleItem->getFieldU32(sfLedgerSequence)
<< std::endl;
std::cerr
<< " TxnHash: "
<< sleItem->getFieldH256(sfTransactionHash)
<< std::endl;
if (sleItem->isFieldPresent(sfSigners))
{
auto const& signers =
sleItem->getFieldArray(sfSigners);
std::cerr
<< " Signers count: " << signers.size()
<< std::endl;
}
else
{
std::cerr << " Signers: NONE" << std::endl;
}
}
} while (cdirNext(
*env.current(),
exportedDirKey.key,
sleDirNode,
uDirEntry,
dirEntry));
}
std::cerr << "=== END DEBUG ===" << std::endl;
}
BEAST_EXPECT(dirEmpty == expectCleanup);
}