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Co-authored-by: iquerejeta <[email protected]>

Author: curiecrypt

mithril-common/src/crypto_helper/cardano/key_certification.rs

@@ -13,8 +13,7 @@ use mithril::key_reg::{ClosedKeyReg, KeyReg};
 use mithril::stm::{Stake, StmInitializer, StmParameters, StmSigner, StmVerificationKeyPoP};
 use mithril::RegisterError;
 
-use blake2::digest::FixedOutput;
-use blake2::{digest::consts::U32, Blake2b, Digest};
+use blake2::{digest::{consts::U32, FixedOutput}, Blake2b, Digest};
 use kes_summed_ed25519::kes::{Sum6Kes, Sum6KesSig};
 use kes_summed_ed25519::traits::{KesSig, KesSk};
 use rand_core::{CryptoRng, RngCore};

mithril-core/src/key_reg.rs

@@ -57,9 +57,9 @@ impl KeyReg {
 
     /// Finalize the key registration.
     /// This function disables `KeyReg::register`, consumes the instance of `self`, and returns a `ClosedKeyReg`.
-    pub fn close<D: Digest>(self) -> ClosedKeyReg<D>
+    pub fn close<D>(self) -> ClosedKeyReg<D>
     where
-        D: FixedOutput,
+        D: Digest + FixedOutput,
     {
         let mut total_stake: Stake = 0;
         let mut reg_parties = self