Files
serai/crypto/dkg/Cargo.toml
Luke Parker 90bc364f9f Replace Ciphersuite::hash_to_F
The prior-present `Ciphersuite::hash_to_F` was a sin. Implementations took a
DST, yet were not require to securely handle it. It was also biased towards the
requirements of `modular-frost` as `ciphersuite` was originally written all
those years ago, when `modular-frost` had needs exceeding what `ff`, `group`
satisfied.

Now, the hash is bound to produce an output which can be converted to a scalar
with `ff::FromUniformBytes`. A new `hash_to_F`, which accepts a single argument
of the value to hash (removing the potential to insecurely handle the DST by
removing the DST entirely). Due to `digest` yielding a `GenericArray`, yet
`FromUniformBytes` taking a `const usize`, the `ciphersuite` crate now defines
a `FromUniformBytes` trait taking an array (then implemented for all satisfiers
of `ff::FromUniformBytes`). In order to get the array type from the
`GenericArray`, the output of the hash, `digest` is updated to the `0.11`
release candidate which moves to `flexible-array` which solves that problem.

The existing, specific `hash_to_F` functions have been moved to `modular-frost`
as necessary.

`flexible-array` itself is patched to a fork due to
https://github.com/RustCrypto/hybrid-array/issues/131.
2025-08-29 05:21:43 -04:00

42 lines
1.0 KiB
TOML

[package]
name = "dkg"
version = "0.6.1"
description = "Distributed key generation over ff/group"
license = "MIT"
repository = "https://github.com/serai-dex/serai/tree/develop/crypto/dkg"
authors = ["Luke Parker <lukeparker5132@gmail.com>"]
keywords = ["dkg", "multisig", "threshold", "ff", "group"]
edition = "2021"
rust-version = "1.85"
[package.metadata.docs.rs]
all-features = true
rustdoc-args = ["--cfg", "docsrs"]
[lints]
workspace = true
[dependencies]
zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive", "alloc"] }
thiserror = { version = "2", default-features = false }
std-shims = { version = "0.1", path = "../../common/std-shims", default-features = false }
borsh = { version = "1", default-features = false, features = ["derive", "de_strict_order"], optional = true }
ciphersuite = { path = "../ciphersuite", version = "^0.4.1", default-features = false, features = ["alloc"] }
[features]
std = [
"thiserror/std",
"std-shims/std",
"borsh?/std",
"ciphersuite/std",
]
borsh = ["dep:borsh"]
default = ["std"]