Commit graph

80 commits

Author SHA1 Message Date
Luke Parker
bfa15283f5
Remove Monero's test FROST file in favor of FROST"s exposed test files
Moves private key recovery for given keys into FROST.
2022-05-30 16:37:51 -04:00
Luke Parker
ba032cca4a
Optimize decoy selection
Saves roughly 0.8s when running the tests, which took 16.6s and now take 
15.8 (5%).

Removes the larger sample size, which replaced the closest selected 
decoy with the real spend, per advice of Rucknium.
2022-05-28 03:17:02 -04:00
Luke Parker
c90e957e6a
Add a batch verifier to multiexp, along with constant time variants
Saves ~8% during FROST key gen, even with dropping a vartime for a 
constant time (as needed to be secure), as the new batch verifier is 
used where batch verification previously wasn't. The new multiexp API 
itself also offered a very slight performance boost, which may solely be 
a measurement error.

Handles most of https://github.com/serai-dex/serai/issues/10. The blame 
function isn't binary searched nor randomly sorted yet.
2022-05-27 00:52:44 -04:00
Luke Parker
d10c6e16dc
Move FROST to HashMaps
Honestly, the borrowed keys are frustrating, and this probably reduces 
performance while no longer offering an order when iterating. That said, 
they enable full u16 indexing and should mildly improve the API.

Cleans the Proof of Knowledge handling present in key gen.
2022-05-24 21:41:14 -04:00
Luke Parker
882d67838e
Fix test failure reporting 2022-05-21 22:23:16 -04:00
Luke Parker
517db6448a
Remove monero-rs types
Still missing an updated RPC file. Restructures the library as it makes 
sense
2022-05-21 15:33:35 -04:00
Luke Parker
573f847a9b
Implement shared key derivation according to https://github.com/monero-project/research-lab/issues/103
Currently solely used for single signer change outputs, intended to be 
used for funds into Serai and multisig change outputs (dependent on #2).

Also cleans the file layout, makes scanning a bit more robust, doesn't 
return outputs of amount 0, and shuffles outputs.
2022-05-20 01:03:54 -04:00
Luke Parker
7c0886a113
Support signing Monero TXs with multiple inputs
Remove's CLSAG's msg Rc for the msg available through AlgorithmMachine. 
Potentially slightly more inefficient, as it needs to be converted from 
a slice to a [u8; 32], yet removes a re-impl.

Also removes a match for an if.
2022-05-18 00:53:13 -04:00
Luke Parker
fd0fd77cf5
Simplify Monero key image handling 2022-05-17 19:15:53 -04:00
Luke Parker
94bd30083b
Slightly simplify CLSAG signing
Expands its test to test all possible ring indexes, though just 0 and a 
single n would be sufficient.
2022-05-14 00:45:13 -04:00
Luke Parker
3533e66c7f
Add Rust CLSAG verification
Marked experimental, not guaranteed to match Monero yet
2022-05-13 20:26:29 -04:00
Luke Parker
bb840da44d
Get Monero tests to pass on a brand new network
Updates decoy selection with an explicit panic, the removal of a divide 
by 0 (causing tests to fail on new chains), and a minor optimization 
when dealing with a large quantity of locked outputs.

Also increases documentation, acknowledging infinite loops and breakage 
from Monero more.
2022-05-13 00:05:34 -04:00
Luke Parker
3e7598315c
Reorganize CLSAG sign flow 2022-05-06 19:07:37 -04:00
Luke Parker
964cb357e6
Use a global transcript 2022-05-06 07:33:08 -04:00
Luke Parker
0f481773df
Use a gamma distribution for mixin selection 2022-05-04 08:18:43 -04:00
Luke Parker
9a42391b75
Cleanup which makes transcript optional, only required for multisig 2022-05-03 08:49:46 -04:00
Luke Parker
9ccf683e9d
Working multisig TXs 2022-04-30 04:32:19 -04:00
Luke Parker
d6649fffb1
Merge InputMultisig into Multisig
There's no reason to use the latter.
2022-04-30 01:43:15 -04:00
Luke Parker
22ac5ce3b6
Update the CLSAG multisig API for TX signing 2022-04-30 01:41:05 -04:00
Luke Parker
d0506e2e9b
Make a trait out of sign::StateMachine for more complex Transaction flows 2022-04-29 22:36:43 -04:00
Luke Parker
27396a6291
Implement a CLSAG algorithm extension which also does key images
Practically, this should be mergeable. There's little reason to do a 
CLSAG and not also a key image. Keeps them isolated for now.
2022-04-29 22:03:34 -04:00
Luke Parker
45559e14ee
Various corrections to multisig API 2022-04-29 15:28:04 -04:00
Luke Parker
8821eb0984
Consolidate FROST testing code 2022-04-28 21:47:25 -04:00
Luke Parker
777bb3df34
Add a send test 2022-04-28 20:41:43 -04:00
Luke Parker
c4b7cb71d7
Move SignableInput to clsag::Input 2022-04-28 17:29:56 -04:00
Luke Parker
7ed1fca270
Use a SeedableRng for CLSAG multisig signing 2022-04-28 17:12:54 -04:00
Luke Parker
20f214c300
Update CLSAG multisig to work again 2022-04-28 12:01:20 -04:00
Luke Parker
f3a5e3c27e
Implement TX creation
Updates CLSAG signing as needed. Moves around Error types.

CLSAG multisig and the multisig feature is currently completely borked 
because of this. The created TXs are accepted by Monero nodes.
2022-04-28 03:31:09 -04:00
Luke Parker
a37a21f891
Rename monero-sign to monero-serai 2022-04-27 22:48:58 -04:00
Luke Parker
df4be9ca0c
Move the Monero create to coins/
Includes misc bug fixes
2022-04-27 00:09:05 -04:00