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Enforce FROST StateMachine progression via the type system

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A comment on the matter was made in 
https://github.com/serai-dex/serai/issues/12. While I do believe the API 
is slightly worse, I appreciate the explicitness.
This commit is contained in:
Luke Parker
2022-06-24 08:40:14 -04:00
parent 462d0e74ce
commit 1caa6a9606
9 changed files with 276 additions and 351 deletions
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5
crypto/frost/src/lib.rs
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@@ -181,11 +181,6 @@ pub enum FrostError {
InvalidProofOfKnowledge(u16),
#[error("invalid share (participant {0})")]
InvalidShare(u16),
#[error("invalid key generation state machine transition (expected {0}, was {1})")]
InvalidKeyGenTransition(key_gen::State, key_gen::State),
#[error("invalid sign state machine transition (expected {0}, was {1})")]
InvalidSignTransition(sign::State, sign::State),
#[error("internal error ({0})")]
InternalError(String),