Commit graph

15 commits

Author SHA1 Message Date
Luke Parker
837c776297
Make Schnorr modular to its transcript 2023-03-07 05:30:21 -05:00
Luke Parker
e08adcc1ac
Have Ciphersuite re-export Group 2023-03-07 03:46:16 -05:00
Luke Parker
c37cc0b4e2
Update Zeroize pin to ^1.5 from 1.5 2023-03-07 02:29:59 -05:00
Luke Parker
97374a3e24
3.8.6 Correct transcript to scalar derivation
Replaces the externally passed in Digest with C::H since C is available.
2023-03-02 10:04:18 -05:00
Luke Parker
530671795a
3.8.5 Let the caller pass in a DST for the aggregation hash function
Also moves the aggregator over to Digest. While a bit verbose for this context,
as all appended items were fixed length, it's length prefixing is solid and
the API is pleasant. The downside is the additional dependency which is
in tree and quite compact.
2023-03-02 09:29:37 -05:00
Luke Parker
8b7e7b1a1c
3.8.4 Don't additionally transcript keys with challenges 2023-03-02 09:14:36 -05:00
Luke Parker
053f07a281
3.8.3 Document challenge requirements 2023-03-02 09:08:53 -05:00
Luke Parker
08f9287107
3.8.2 Add Ed25519 RFC 8032 test vectors 2023-03-02 09:06:03 -05:00
Luke Parker
35043d2889
3.8.1 Document RFC 8032 compatibility 2023-03-02 08:45:09 -05:00
Luke Parker
25f1549c6c
Move verify_share to return batch-verifiable statements
While the previous construction achieved n/2 average detection,
this will run in log2(n). Unfortunately, the need to keep entropy
around (or take in an RNG here) remains.
2022-12-13 20:31:00 -05:00
Luke Parker
d32c865c9a
Misc formatting fixes 2022-12-08 22:10:12 -05:00
Luke Parker
12136a9409
Document extensions to FROST
Also makes misc other doc corrections.
2022-12-07 20:23:25 -05:00
Luke Parker
84de427d72
Fix https://github.com/serai-dex/serai/issues/150 2022-11-10 22:35:09 -05:00
Luke Parker
5977aeb489
Implement Schnorr half-aggregation from https://eprint.iacr.org/2021/350.pdf
Relevant to https://github.com/serai-dex/serai/issues/99.
2022-11-04 08:04:49 -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