diff options
Diffstat (limited to 'core/utils/utils.go')
| -rw-r--r-- | core/utils/utils.go | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/core/utils/utils.go b/core/utils/utils.go index 3e3803d..687d0ea 100644 --- a/core/utils/utils.go +++ b/core/utils/utils.go @@ -1,3 +1,20 @@ +// Copyright 2018 The dexon-consensus Authors +// This file is part of the dexon-consensus library. +// +// The dexon-consensus library is free software: you can redistribute it +// and/or modify it under the terms of the GNU Lesser General Public License as +// published by the Free Software Foundation, either version 3 of the License, +// or (at your option) any later version. +// +// The dexon-consensus library is distributed in the hope that it will be +// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser +// General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the dexon-consensus library. If not, see +// <http://www.gnu.org/licenses/>. + // This file is part of the dexon-consensus library. // // The dexon-consensus library is free software: you can redistribute it @@ -21,6 +38,7 @@ import ( "github.com/dexon-foundation/dexon-consensus/common" "github.com/dexon-foundation/dexon-consensus/core/types" + typesDKG "github.com/dexon-foundation/dexon-consensus/core/types/dkg" ) type configAccessor interface { @@ -57,5 +75,36 @@ func GetCRSWithPanic(accessor crsAccessor, round uint64, panic(fmt.Errorf("CRS is not ready %v", round)) } return crs +} +// VerifyDKGComplaint verifies if its a valid DKGCompliant. +func VerifyDKGComplaint( + complaint *typesDKG.Complaint, mpk *typesDKG.MasterPublicKey) (bool, error) { + ok, err := VerifyDKGComplaintSignature(complaint) + if err != nil { + return false, err + } + if !ok { + return false, nil + } + if complaint.IsNack() { + return true, nil + } + if complaint.Round != mpk.Round { + return false, nil + } + ok, err = VerifyDKGMasterPublicKeySignature(mpk) + if err != nil { + return false, err + } + if !ok { + return false, nil + } + ok, err = mpk.PublicKeyShares.VerifyPrvShare( + typesDKG.NewID(complaint.PrivateShare.ReceiverID), + &complaint.PrivateShare.PrivateShare) + if err != nil { + return false, err + } + return ok, nil } |