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90bc364f9f
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.
47 lines
1.6 KiB
TOML
47 lines
1.6 KiB
TOML
[package]
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name = "dalek-ff-group"
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version = "0.4.6"
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description = "ff/group bindings around curve25519-dalek"
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license = "MIT"
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repository = "https://github.com/serai-dex/serai/tree/develop/crypto/dalek-ff-group"
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authors = ["Luke Parker <lukeparker5132@gmail.com>"]
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keywords = ["curve25519", "ed25519", "ristretto", "dalek", "group"]
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edition = "2021"
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rust-version = "1.85"
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[package.metadata.docs.rs]
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all-features = true
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rustdoc-args = ["--cfg", "docsrs"]
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[lints]
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workspace = true
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[dependencies]
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rustversion = "1"
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zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
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subtle = { version = "^2.4", default-features = false }
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rand_core = { version = "0.6", default-features = false }
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digest = { version = "0.10", default-features = false }
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sha2 = { version = "0.11.0-rc.0", default-features = false }
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ff = { version = "0.13", default-features = false, features = ["bits"] }
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group = { version = "0.13", default-features = false }
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ciphersuite = { version = "0.4.2", path = "../ciphersuite", default-features = false }
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crypto-bigint = { version = "0.5", default-features = false, features = ["zeroize"] }
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curve25519-dalek = { version = ">= 4.0, < 4.2", default-features = false, features = ["zeroize", "digest", "group", "precomputed-tables"] }
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[dev-dependencies]
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hex = "0.4"
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rand_core = { version = "0.6", default-features = false, features = ["std"] }
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ff-group-tests = { path = "../ff-group-tests" }
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[features]
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alloc = ["zeroize/alloc", "ciphersuite/alloc", "curve25519-dalek/alloc"]
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std = ["alloc", "zeroize/std", "subtle/std", "rand_core/std", "digest/std", "ciphersuite/std"]
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default = ["std"]
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