chore: update static keys

rln/rln_test.go

@@ -158,7 +158,7 @@ func (s *RLNSuite) TestCheckCorrectness() {
 	groupKeys := STATIC_GROUP_KEYS
 
 	// create a set of MembershipKeyPair objects from groupKeys
-	groupKeyPairs, err := toMembershipKeyPairs(groupKeys)
+	groupKeyPairs, err := ToIdentityCredentials(groupKeys)
 	s.NoError(err)
 
 	// extract the id commitments

rln/utils.go

@@ -1,26 +1,46 @@
 package rln
 
-import "encoding/hex"
+import (
+	"encoding/hex"
+)
 
-func toMembershipKeyPairs(groupKeys [][]string) ([]IdentityCredential, error) {
+func ToIdentityCredentials(groupKeys [][]string) ([]IdentityCredential, error) {
 	// groupKeys is  sequence of membership key tuples in the form of (identity key, identity commitment) all in the hexadecimal format
-	// the toMembershipKeyPairs proc populates a sequence of MembershipKeyPairs using the supplied groupKeys
+	// the toIdentityCredentials proc populates a sequence of IdentityCredentials using the supplied groupKeys
+	// Returns an error if the conversion fails
 
-	groupKeyPairs := []IdentityCredential{}
-	for _, pair := range groupKeys {
-		idSecretHash, err := hex.DecodeString(pair[0])
-		if err != nil {
-			return nil, err
-		}
-		idCommitment, err := hex.DecodeString(pair[1])
+	var groupIdCredentials []IdentityCredential
+
+	for _, gk := range groupKeys {
+		idTrapdoor, err := ToBytes32LE(gk[0])
 		if err != nil {
 			return nil, err
 		}
 
-		groupKeyPairs = append(groupKeyPairs, IdentityCredential{IDSecretHash: IDSecretHash(Bytes32(idSecretHash)), IDCommitment: IDCommitment(Bytes32(idCommitment))})
+		idNullifier, err := ToBytes32LE(gk[1])
+		if err != nil {
+			return nil, err
+		}
+
+		idSecretHash, err := ToBytes32LE(gk[2])
+		if err != nil {
+			return nil, err
+		}
+
+		idCommitment, err := ToBytes32LE(gk[3])
+		if err != nil {
+			return nil, err
+		}
+
+		groupIdCredentials = append(groupIdCredentials, IdentityCredential{
+			IDTrapdoor:   idTrapdoor,
+			IDNullifier:  idNullifier,
+			IDSecretHash: idSecretHash,
+			IDCommitment: idCommitment,
+		})
 	}
 
-	return groupKeyPairs, nil
+	return groupIdCredentials, nil
 }
 
 func Bytes32(b []byte) [32]byte {
@@ -34,3 +54,17 @@ func Bytes128(b []byte) [128]byte {
 	copy(result[128-len(b):], b)
 	return result
 }
+
+func ToBytes32LE(hexStr string) ([32]byte, error) {
+
+	b, err := hex.DecodeString(hexStr)
+	if err != nil {
+		return [32]byte{}, err
+	}
+
+	for i := 0; i < len(b)/2; i++ {
+		b[i], b[len(b)-i-1] = b[len(b)-i-1], b[i]
+	}
+
+	return Bytes32(b), nil
+}