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Add Ed25519 to FROST and remove expand_xmd for elliptic_curve's

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Doesn't fully utilize ec's hash2curve module as k256 Scalar doesn't have 
FromOkm for some reason. The previously present bigint reduction is 
preserved.

Updates ff/group to 0.12.

Premised on https://github.com/cfrg/draft-irtf-cfrg-frost/pull/205 being 
merged, as while this Ed25519 is vector compliant, it's technically not 
spec compliant due to that conflict.
This commit is contained in:
Luke Parker
2022-06-06 02:18:25 -04:00
parent 55a895d65a
commit e0ce6e5c12
15 changed files with 189 additions and 266 deletions
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24
crypto/frost/Cargo.toml
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@@ -12,12 +12,15 @@ thiserror = "1"
rand_core = "0.6"
hex = "0.4"
ff = "0.11"
group = "0.11"
sha2 = { version = "0.10", optional = true }
p256 = { version = "0.10", optional = true }
k256 = { version = "0.10", optional = true }
ff = "0.12"
group = "0.12"
elliptic-curve = { version = "0.12", features = ["hash2curve"], optional = true }
p256 = { version = "0.11", features = ["arithmetic", "hash2curve"], optional = true }
k256 = { version = "0.11", features = ["arithmetic", "hash2curve"], optional = true }
dalek-ff-group = { path = "../dalek-ff-group", optional = true }
transcript = { path = "../transcript" }
@@ -25,9 +28,14 @@ multiexp = { path = "../multiexp", features = ["batch"] }
[dev-dependencies]
rand = "0.8"
sha2 = "0.10"
p256 = { version = "0.10", features = ["arithmetic"] }
elliptic-curve = { version = "0.12", features = ["hash2curve"] }
p256 = { version = "0.11", features = ["arithmetic", "hash2curve"] }
[features]
p256 = ["sha2", "dep:p256"]
k256 = ["sha2", "dep:k256"]
curves = []
kp256 = ["elliptic-curve"]
p256 = ["curves", "kp256", "sha2", "dep:p256"]
k256 = ["curves", "kp256", "sha2", "dep:k256"]
ed25519 = ["curves", "sha2", "dalek-ff-group"]