mirrors/monero
1
0
Fork 0
mirror of https://github.com/monero-project/monero.git synced 2026-01-30 08:14:54 +01:00
Code Issues Projects Releases Wiki Activity

Add view tags to outputs to reduce wallet scanning time

Browse Source 
Implements view tags as proposed by @UkoeHB in MRL issue
https://github.com/monero-project/research-lab/issues/73

At tx construction, the sender adds a 1-byte view tag to each
output. The view tag is derived from the sender-receiver
shared secret. When scanning for outputs, the receiver can
check the view tag for a match, in order to reduce scanning
time. When the view tag does not match, the wallet avoids the
more expensive EC operations when deriving the output public
key using the shared secret.
This commit is contained in:
j-berman
2021-11-15 05:23:53 -08:00
parent 6694597974
commit ea87b30f89
39 changed files with 1165 additions and 230 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
src/serialization/json_object.cpp
View File

@@ -563,6 +563,27 @@ void fromJsonValue(const rapidjson::Value& val, cryptonote::txout_to_key& txout)
GET_FROM_JSON_OBJECT(val, txout.key, key);
}
void toJsonValue(rapidjson::Writer<epee::byte_stream>& dest, const cryptonote::txout_to_tagged_key& txout)
{
dest.StartObject();
INSERT_INTO_JSON_OBJECT(dest, key, txout.key);
INSERT_INTO_JSON_OBJECT(dest, view_tag, txout.view_tag);
dest.EndObject();
}
void fromJsonValue(const rapidjson::Value& val, cryptonote::txout_to_tagged_key& txout)
{
if (!val.IsObject())
{
throw WRONG_TYPE("json object");
}
GET_FROM_JSON_OBJECT(val, txout.key, key);
GET_FROM_JSON_OBJECT(val, txout.view_tag, view_tag);
}
void toJsonValue(rapidjson::Writer<epee::byte_stream>& dest, const cryptonote::tx_out& txout)
{
dest.StartObject();
@@ -578,6 +599,10 @@ void toJsonValue(rapidjson::Writer<epee::byte_stream>& dest, const cryptonote::t
{
INSERT_INTO_JSON_OBJECT(dest, to_key, output);
}
void operator()(cryptonote::txout_to_tagged_key const& output) const
{
INSERT_INTO_JSON_OBJECT(dest, to_tagged_key, output);
}
void operator()(cryptonote::txout_to_script const& output) const
{
INSERT_INTO_JSON_OBJECT(dest, to_script, output);
@@ -616,6 +641,12 @@ void fromJsonValue(const rapidjson::Value& val, cryptonote::tx_out& txout)
fromJsonValue(elem.value, tmpVal);
txout.target = std::move(tmpVal);
}
else if (elem.name == "to_tagged_key")
{
cryptonote::txout_to_tagged_key tmpVal;
fromJsonValue(elem.value, tmpVal);
txout.target = std::move(tmpVal);
}
else if (elem.name == "to_script")
{
cryptonote::txout_to_script tmpVal;