Files
serai/crypto/dkg/evrf/Cargo.toml
Luke Parker a141deaf36 Smash the singular Ciphersuite trait into multiple
This helps identify where the various functionalities are used, or rather, not
used. The `Ciphersuite` trait present in `patches/ciphersuite`, facilitating
the entire FCMP++ tree, only requires the markers _and_ canonical point
decoding. I've opened a PR to upstream such a trait into `group`
(https://github.com/zkcrypto/group/pull/68).

`WrappedGroup` is still justified for as long as `Group::generator` exists.
Moving `::generator()` to its own trait, on an independent structure (upstream)
would be massively appreciated. @tarcieri also wanted to update from
`fn generator()` to `const GENERATOR`, which would encourage further discussion
on https://github.com/zkcrypto/group/issues/32 and
https://github.com/zkcrypto/group/issues/45, which have been stagnant.

The `Id` trait is occasionally used yet really should be first off the chopping
block.

Finally, `WithPreferredHash` is only actually used around a third of the time,
which more than justifies it being a separate trait.

---

Updates `dalek_ff_group::Scalar` to directly re-export
`curve25519_dalek::Scalar`, as without issue. `dalek_ff_group::RistrettoPoint`
also could be replaced with an export of `curve25519_dalek::RistrettoPoint`,
yet the coordinator relies on how we implemented `Hash` on it for the hell of
it so it isn't worth it at this time. `dalek_ff_group::EdwardsPoint` can't be
replaced for an re-export of `curve25519_dalek::SubgroupPoint` as it doesn't
implement `zeroize`, `subtle` traits within a released, non-yanked version.
Relevance to https://github.com/serai-dex/serai/issues/201 and
https://github.com/dalek-cryptography/curve25519-dalek/issues/811#issuecomment-3247732746.

Also updates the `Ristretto` ciphersuite to prefer `Blake2b-512` over
`SHA2-512`. In order to maintain compliance with FROST's IETF standard,
`modular-frost` defines its own ciphersuite for Ristretto which still uses
`SHA2-512`.
2025-09-03 13:50:20 -04:00

91 lines
3.7 KiB
TOML

[package]
name = "dkg-evrf"
version = "0.1.0"
description = "Distributed key generation over ff/group"
license = "MIT"
repository = "https://github.com/serai-dex/serai/tree/develop/crypto/dkg/evrf"
authors = ["Luke Parker <lukeparker5132@gmail.com>"]
keywords = ["dkg", "multisig", "threshold", "ff", "group"]
edition = "2021"
rust-version = "1.89"
[package.metadata.docs.rs]
all-features = true
rustdoc-args = ["--cfg", "docsrs"]
[lints]
workspace = true
[dependencies]
thiserror = { version = "2", default-features = false }
rand_core = { version = "0.6", default-features = false, features = ["alloc"] }
zeroize = { version = "^1.5", default-features = false, features = ["alloc", "zeroize_derive"] }
std-shims = { version = "0.1", path = "../../../common/std-shims", default-features = false }
transcript = { package = "flexible-transcript", path = "../../transcript", version = "^0.3.2", default-features = false, features = ["recommended"] }
ciphersuite = { path = "../../ciphersuite", version = "^0.4.1", default-features = false, features = ["alloc"] }
multiexp = { path = "../../multiexp", version = "0.4", default-features = false }
generic-array = { version = "1", default-features = false, features = ["alloc"] }
blake2 = { version = "0.11.0-rc.2", default-features = false }
rand_chacha = { version = "0.3", default-features = false }
generalized-bulletproofs = { git = "https://github.com/monero-oxide/monero-oxide", rev = "7216a2e84c7671c167c3d81eafe0d2b1f418f102", default-features = false }
ec-divisors = { git = "https://github.com/monero-oxide/monero-oxide", rev = "7216a2e84c7671c167c3d81eafe0d2b1f418f102", default-features = false }
generalized-bulletproofs-circuit-abstraction = { git = "https://github.com/monero-oxide/monero-oxide", rev = "7216a2e84c7671c167c3d81eafe0d2b1f418f102", default-features = false }
generalized-bulletproofs-ec-gadgets = { git = "https://github.com/monero-oxide/monero-oxide", rev = "7216a2e84c7671c167c3d81eafe0d2b1f418f102", default-features = false }
dkg = { path = "..", default-features = false }
ciphersuite-kp256 = { path = "../../ciphersuite/kp256", default-features = false, features = ["alloc"], optional = true }
secq256k1 = { path = "../../secq256k1", default-features = false, features = ["alloc"], optional = true }
dalek-ff-group = { path = "../../dalek-ff-group", default-features = false, features = ["alloc"], optional = true }
embedwards25519 = { path = "../../embedwards25519", default-features = false, features = ["alloc"], optional = true }
[dev-dependencies]
rand_core = { version = "0.6", default-features = false, features = ["getrandom"] }
rand = { version = "0.8", default-features = false, features = ["std"] }
ciphersuite = { path = "../../ciphersuite", default-features = false, features = ["std"] }
embedwards25519 = { path = "../../embedwards25519", default-features = false, features = ["std"] }
dalek-ff-group = { path = "../../dalek-ff-group", default-features = false, features = ["std"] }
generalized-bulletproofs = { git = "https://github.com/monero-oxide/monero-oxide", rev = "7216a2e84c7671c167c3d81eafe0d2b1f418f102", features = ["tests"] }
dkg-recovery = { path = "../recovery" }
[features]
std = [
"thiserror/std",
"rand_core/std",
"zeroize/std",
"std-shims/std",
"transcript/std",
"ciphersuite/std",
"multiexp/std",
"multiexp/batch",
"rand_chacha/std",
"generalized-bulletproofs/std",
"ec-divisors/std",
"generalized-bulletproofs-circuit-abstraction/std",
"generalized-bulletproofs-ec-gadgets/std",
"dkg/std",
"ciphersuite-kp256?/std",
"secq256k1?/std",
"dalek-ff-group?/std",
"embedwards25519?/std",
]
secp256k1 = ["ciphersuite-kp256", "secq256k1"]
ed25519 = ["dalek-ff-group", "embedwards25519"]
tests = ["rand_core/getrandom"]
default = ["std"]