Commit Graph

22 Commits

Author SHA1 Message Date
Luke Parker
8de465af87 Have Transcript::append_message take in AsRef<[u8]>, not &[u8]
Simplifies calling it.
2022-11-05 18:43:36 -04:00
Luke Parker
2379855b31 Create a dedicated crate for the DKG (#141)
* Add dkg crate

* Remove F_len and G_len

They're generally no longer used.

* Replace hash_to_vec with a provided method around associated type H: Digest

Part of trying to minimize this trait so it can be moved elsewhere. Vec, 
which isn't std, may have been a blocker.

* Encrypt secret shares within the FROST library

Reduces requirements on callers in order to be correct.

* Update usage of Zeroize within FROST

* Inline functions in key_gen

There was no reason to have them separated as they were. sign probably 
has the same statement available, yet that isn't the focus right now.

* Add a ciphersuite package which provides hash_to_F

* Set the Ciphersuite version to something valid

* Have ed448 export Scalar/FieldElement/Point at the top level

* Move FROST over to Ciphersuite

* Correct usage of ff in ciphersuite

* Correct documentation handling

* Move Schnorr signatures to their own crate

* Remove unused feature from schnorr

* Fix Schnorr tests

* Split DKG into a separate crate

* Add serialize to Commitments and SecretShare

Helper for buf = vec![]; .write(buf).unwrap(); buf

* Move FROST over to the new dkg crate

* Update Monero lib to latest FROST

* Correct ethereum's usage of features

* Add serialize to GeneratorProof

* Add serialize helper function to FROST

* Rename AddendumSerialize to WriteAddendum

* Update processor

* Slight fix to processor
2022-10-29 03:54:42 -05:00
Luke Parker
cbceaff678 Create dedicated message structures for FROST messages (#140)
* Create message types for FROST key gen

Taking in reader borrows absolutely wasn't feasible. Now, proper types
which can be read (and then passed directly, without a mutable borrow)
exist for key_gen. sign coming next.

* Move FROST signing to messages, not Readers/Writers/Vec<u8>

Also takes the nonce handling code and makes a dedicated file for it, 
aiming to resolve complex types and make the code more legible by 
replacing its previously inlined state.

* clippy

* Update FROST tests

* read_signature_share

* Update the Monero library to the new FROST packages

* Update processor to latest FROST

* Tweaks to terminology and documentation
2022-10-25 23:17:25 -05:00
Luke Parker
2b7c9378c0 Update to FROST v10
Further expands documentation to near-completion.
2022-09-29 07:08:20 -04:00
Luke Parker
ca091a5f04 Expand and correct documentation 2022-09-29 05:25:29 -04:00
Luke Parker
885d816309 Use a non-constant generator in FROST 2022-08-13 08:50:59 -04:00
Luke Parker
76a7160ea5 Correct clippy warnings
Currently intended to be done with:
cargo clippy --features "recommended merlin batch serialize experimental 
ed25519 ristretto p256 secp256k1 multisig" -- -A clippy::type_complexity 
-A dead_code
2022-07-22 02:35:17 -04:00
Luke Parker
e67033a207 Apply an initial set of rustfmt rules 2022-07-16 15:16:30 -05:00
Luke Parker
6cc8ce840e Move FROST to Read
Fixes https://github.com/serai-dex/serai/issues/33 and 
https://github.com/serai-dex/serai/issues/35. Also fixes a few potential 
panics/DoS AFAICT.
2022-07-13 02:38:29 -04:00
Luke Parker
94f380f857 Update to FROST v7 2022-07-12 02:45:18 -04:00
Luke Parker
5eb61f3a87 Fix https://github.com/serai-dex/serai/issues/14. 2022-07-12 01:28:01 -04:00
Luke Parker
f7106f09ed Add further must_uses 2022-07-07 14:28:42 -04:00
Luke Parker
1430b189bf Enable no_std on transcript
Removes the Vec challenge for an associated type.

Fixes the merlin feature which was horribly broken.

Also adds no_std to dalek-ff-group.
2022-06-28 04:02:56 -04:00
Luke Parker
ac17645fc8 Rename MultisigParams/MultisigKeys/MultisigView to Frost* 2022-06-28 00:09:41 -04:00
Luke Parker
7b4c5dbe52 Remove rng_seed's additional entropy
It was never used as we derive entropy via the other fields in the 
transcript, and explicitly add fields directly as needed for entropy.

Also drops an unused crate and corrects a bug in FROST's Schnorr 
implementation which used the Group's generator, instead of the Curve's.

Also updates the Monero crate's description.
2022-05-31 02:12:14 -04:00
Luke Parker
1eaf2f897b Consolidate Schnorr code in FROST 2022-05-25 00:22:00 -04:00
Luke Parker
d67d6f2f98 Add PartialEq to structs 2022-05-25 00:21:01 -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
fd0fd77cf5 Simplify Monero key image handling 2022-05-17 19:15:53 -04:00
Luke Parker
964cb357e6 Use a global transcript 2022-05-06 07:33:08 -04:00
Luke Parker
bf257b3a1f Transcript crate with both a merlin backend and a basic label len value backend
Moves binding factor/seeded RNGs over to the transcripts.
2022-05-03 07:20:24 -04:00
Luke Parker
87f38cafe4 Rename sign folder to crypto
Inspired by #3 and #5.
2022-05-03 00:46:50 -04:00