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ff 0.13 (#269)

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* Partial move to ff 0.13

It turns out the newly released k256 0.12 isn't on ff 0.13, preventing further
work at this time.

* Update all crates to work on ff 0.13

The provided curves still need to be expanded to fit the new API.

* Finish adding dalek-ff-group ff 0.13 constants

* Correct FieldElement::product definition

Also stops exporting macros.

* Test most new parts of ff 0.13

* Additionally test ff-group-tests with BLS12-381 and the pasta curves

We only tested curves from RustCrypto. Now we test a curve offered by zk-crypto,
the group behind ff/group, and the pasta curves, which is by Zcash (though
Zcash developers are also behind zk-crypto).

* Finish Ed448

Fully specifies all constants, passes all tests in ff-group-tests, and finishes moving to ff-0.13.

* Add RustCrypto/elliptic-curves to allowed git repos

Needed due to k256/p256 incorrectly defining product.

* Finish writing ff 0.13 tests

* Add additional comments to dalek

* Further comments

* Update ethereum-serai to ff 0.13
This commit is contained in:
Luke Parker
2023-03-28 04:38:01 -04:00
committed by GitHub
parent a9f6300e86
commit 79aff5d4c8
59 changed files with 865 additions and 429 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
coins/ethereum/src/crypto.rs
View File

@@ -2,7 +2,9 @@ use sha3::{Digest, Keccak256};
use group::Group;
use k256::{
elliptic_curve::{bigint::ArrayEncoding, ops::Reduce, sec1::ToEncodedPoint, DecompressPoint},
elliptic_curve::{
bigint::ArrayEncoding, ops::Reduce, point::DecompressPoint, sec1::ToEncodedPoint,
},
AffinePoint, ProjectivePoint, Scalar, U256,
};
@@ -13,7 +15,7 @@ pub fn keccak256(data: &[u8]) -> [u8; 32] {
}
pub fn hash_to_scalar(data: &[u8]) -> Scalar {
Scalar::from_uint_reduced(U256::from_be_slice(&keccak256(data)))
Scalar::reduce(U256::from_be_slice(&keccak256(data)))
}
pub fn address(point: &ProjectivePoint) -> [u8; 20] {
@@ -56,7 +58,7 @@ impl Hram<Secp256k1> for EthereumHram {
let mut data = address(R).to_vec();
data.append(&mut a_encoded);
data.append(&mut m.to_vec());
Scalar::from_uint_reduced(U256::from_be_slice(&keccak256(&data)))
Scalar::reduce(U256::from_be_slice(&keccak256(&data)))
}
}
@@ -92,7 +94,7 @@ pub fn process_signature_for_contract(
) -> ProcessedSignature {
let encoded_pk = A.to_encoded_point(true);
let px = &encoded_pk.as_ref()[1 .. 33];
let px_scalar = Scalar::from_uint_reduced(U256::from_be_slice(px));
let px_scalar = Scalar::reduce(U256::from_be_slice(px));
let e = EthereumHram::hram(R, A, &[chain_id.to_be_byte_array().as_slice(), &m].concat());
ProcessedSignature {
s,