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Use Bytes32 instead of std::string where possible, to reduce memory usage

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This commit is contained in:
Doug Hoyte
2024-09-05 15:12:40 -04:00
parent 55fa4dc032
commit 169e633a08
7 changed files with 82 additions and 32 deletions
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6
src/events.cpp
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@ -68,7 +68,7 @@ std::string nostrJsonToPackedEvent(const tao::json::value &v) {
return std::move(builder.buf);
}
std::string nostrHash(const tao::json::value &origJson) {
Bytes32 nostrHash(const tao::json::value &origJson) {
tao::json::value arr = tao::json::empty_array;
arr.emplace_back(0);
@ -84,7 +84,7 @@ std::string nostrHash(const tao::json::value &origJson) {
unsigned char hash[SHA256_DIGEST_LENGTH];
SHA256(reinterpret_cast<unsigned char*>(encoded.data()), encoded.size(), hash);
return std::string(reinterpret_cast<char*>(hash), SHA256_DIGEST_LENGTH);
return Bytes32(std::string_view(reinterpret_cast<char*>(hash), SHA256_DIGEST_LENGTH));
}
bool verifySig(secp256k1_context* ctx, std::string_view sig, std::string_view hash, std::string_view pubkey) {
@ -106,7 +106,7 @@ bool verifySig(secp256k1_context* ctx, std::string_view sig, std::string_view ha
void verifyNostrEvent(secp256k1_context *secpCtx, PackedEventView packed, const tao::json::value &origJson) {
auto hash = nostrHash(origJson);
if (hash != packed.id()) throw herr("bad event id");
if (hash != Bytes32(packed.id())) throw herr("bad event id");
bool valid = verifySig(secpCtx, from_hex(jsonGetString(origJson.at("sig"), "event sig was not a string"), false), packed.id(), packed.pubkey());
if (!valid) throw herr("bad signature");