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use 5+27 length for quadrable keys instead of 9+23

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- reduces quadrable branching
- increases collision resistance
- good until year 2514
This commit is contained in:
Doug Hoyte
2023-01-25 16:31:31 -05:00
parent 485abee8ed
commit 9e2bc45a46
4 changed files with 7 additions and 4 deletions
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4
src/events.h
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@ -51,7 +51,9 @@ std::string_view decodeEventPayload(lmdb::txn &txn, Decompressor &decomp, std::s
std::string_view getEventJson(lmdb::txn &txn, Decompressor &decomp, uint64_t levId);
inline quadrable::Key flatEventToQuadrableKey(const NostrIndex::Event *flat) {
return quadrable::Key::fromIntegerAndHash(flat->created_at(), sv(flat->id()).substr(0, 23));
uint64_t timestamp = flat->created_at();
if (timestamp > MAX_TIMESTAMP) throw herr("timestamp is too large to encode in quadrable key");
return quadrable::Key::fromIntegerAndHash(timestamp, sv(flat->id()).substr(0, 27));
}