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Add another hash domain for HeavyHash

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Elichai Turkel 2021-11-06 21:31:29 +02:00
parent 2dddb650b9
commit c26b4deefe
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GPG Key ID: 9383CDE9E8E66A7F
1 changed files with 10 additions and 0 deletions
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10
domain/consensus/utils/hashes/domains.go
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@ -13,6 +13,7 @@ const (
transcationSigningECDSADomain = "TransactionSigningHashECDSA" transcationSigningECDSADomain = "TransactionSigningHashECDSA"
blockDomain = "BlockHash" blockDomain = "BlockHash"
proofOfWorkDomain = "ProofOfWorkHash" proofOfWorkDomain = "ProofOfWorkHash"
heavyHashDomain = "HeavyHash"
merkleBranchDomain = "MerkleBranchHash" merkleBranchDomain = "MerkleBranchHash"
) )
@ -73,6 +74,15 @@ func NewPoWHashWriter() HashWriter {
return HashWriter{blake} return HashWriter{blake}
} }
// NewHeavyHashWriter Returns a new HashWriter used for the HeavyHash function
func NewHeavyHashWriter() HashWriter {
blake, err := blake2b.New256([]byte(heavyHashDomain))
if err != nil {
panic(errors.Wrapf(err, "this should never happen. %s is less than 64 bytes", heavyHashDomain))
}
return HashWriter{blake}
}
// NewMerkleBranchHashWriter Returns a new HashWriter used for a merkle tree branch // NewMerkleBranchHashWriter Returns a new HashWriter used for a merkle tree branch
func NewMerkleBranchHashWriter() HashWriter { func NewMerkleBranchHashWriter() HashWriter {
blake, err := blake2b.New256([]byte(merkleBranchDomain)) blake, err := blake2b.New256([]byte(merkleBranchDomain))