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Shortened name of the partial decryption verification function

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Piotr Dyraga committed 2018-06-01 21:42:49 +02:00
1 parent 9d17da0d33
commit ba2c5aaa5f
2 files changed
+7 -7
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thresholdkey.go
+4 -4
View File
@@ -48,7 +48,7 @@ func (tk *ThresholdPublicKey) delta() *big.Int {
// Checks if the number of received, unique shares is less than the // Checks if the number of received, unique shares is less than the
// required threshold. // required threshold.
// This method does not execute ZKP on received shares. // This method does not execute ZKP on received shares.
func (tk *ThresholdPublicKey) makeVerificationBeforeCombiningPartialDecryptions(shares []*PartialDecryption) error { func (tk *ThresholdPublicKey) verifyPartialDecryptions(shares []*PartialDecryption) error {
if len(shares) < tk.Threshold { if len(shares) < tk.Threshold {
return errors.New("Threshold not meet") return errors.New("Threshold not meet")
} }
@@ -118,7 +118,7 @@ func (tk *ThresholdPublicKey) computeDecryption(cprime *big.Int) *big.Int {
// This function does not verify zero knowledge proofs. Returned message can be // This function does not verify zero knowledge proofs. Returned message can be
// incorrectly decrypted if an adversary corrupted partial decryption. // incorrectly decrypted if an adversary corrupted partial decryption.
func (tk *ThresholdPublicKey) CombinePartialDecryptions(shares []*PartialDecryption) (*big.Int, error) { func (tk *ThresholdPublicKey) CombinePartialDecryptions(shares []*PartialDecryption) (*big.Int, error) {
if err := tk.makeVerificationBeforeCombiningPartialDecryptions(shares); err != nil { if err := tk.verifyPartialDecryptions(shares); err != nil {
return nil, err return nil, err
} }
@@ -131,8 +131,8 @@ func (tk *ThresholdPublicKey) CombinePartialDecryptions(shares []*PartialDecrypt
return tk.computeDecryption(cprime), nil return tk.computeDecryption(cprime), nil
} }
// Combines partial decryptions provided by decription servers and returns // Combines partial decryptions provided by decryption servers and returns
// decrypted message. // full decrypted message.
// Function verifies zero knowledge proofs and filters out all shares that failed // Function verifies zero knowledge proofs and filters out all shares that failed
// verification. // verification.
func (tk *ThresholdPublicKey) CombinePartialDecryptionsZKP(shares []*PartialDecryptionZKP) (*big.Int, error) { func (tk *ThresholdPublicKey) CombinePartialDecryptionsZKP(shares []*PartialDecryptionZKP) (*big.Int, error) {
thresholdkey_test.go
+3 -3
View File
@@ -129,16 +129,16 @@ func TestDecryptAndProduceZNP(t *testing.T) {
func TestMakeVerificationBeforeCombiningPartialDecryptions(t *testing.T) { func TestMakeVerificationBeforeCombiningPartialDecryptions(t *testing.T) {
tk := new(ThresholdPublicKey) tk := new(ThresholdPublicKey)
tk.Threshold = 2 tk.Threshold = 2
if tk.makeVerificationBeforeCombiningPartialDecryptions([]*PartialDecryption{}) == nil { if tk.verifyPartialDecryptions([]*PartialDecryption{}) == nil {
t.Fail() t.Fail()
} }
prms := []*PartialDecryption{new(PartialDecryption), new(PartialDecryption)} prms := []*PartialDecryption{new(PartialDecryption), new(PartialDecryption)}
prms[1].Id = 1 prms[1].Id = 1
if tk.makeVerificationBeforeCombiningPartialDecryptions(prms) != nil { if tk.verifyPartialDecryptions(prms) != nil {
t.Fail() t.Fail()
} }
prms[1].Id = 0 prms[1].Id = 0
if tk.makeVerificationBeforeCombiningPartialDecryptions(prms) == nil { if tk.verifyPartialDecryptions(prms) == nil {
t.Fail() t.Fail()
} }
} }