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| author | j-berman <justinberman@protonmail.com> | 2021-11-15 05:23:53 -0800 |
|---|---|---|
| committer | j-berman <justinberman@protonmail.com> | 2022-04-18 00:49:53 -0700 |
| commit | ea87b30f8907ee11252433811e7a7d0c46758cca (patch) | |
| tree | 61dedf56a781a83285be092b078019bebdc94f2e /src/device/device.hpp | |
| parent | Merge pull request #8207 (diff) | |
| download | monero-ea87b30f8907ee11252433811e7a7d0c46758cca.tar.xz | |
Add view tags to outputs to reduce wallet scanning time
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.
Diffstat (limited to 'src/device/device.hpp')
| -rw-r--r-- | src/device/device.hpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/device/device.hpp b/src/device/device.hpp index ba47115e7..eca91006f 100644 --- a/src/device/device.hpp +++ b/src/device/device.hpp @@ -222,7 +222,8 @@ namespace hw { const bool &need_additional_txkeys, const std::vector<crypto::secret_key> &additional_tx_keys, std::vector<crypto::public_key> &additional_tx_public_keys, std::vector<rct::key> &amount_keys, - crypto::public_key &out_eph_public_key) = 0; + crypto::public_key &out_eph_public_key, + const bool use_view_tags, crypto::view_tag &view_tag) = 0; virtual bool mlsag_prehash(const std::string &blob, size_t inputs_size, size_t outputs_size, const rct::keyV &hashes, const rct::ctkeyV &outPk, rct::key &prehash) = 0; virtual bool mlsag_prepare(const rct::key &H, const rct::key &xx, rct::key &a, rct::key &aG, rct::key &aHP, rct::key &rvII) = 0; |