imported from https://bitbucket.org/ustraca/crypto

encoding_test.go

@@ -0,0 +1,123 @@
+package paillier
+
+import (
+	"crypto/rand"
+	"encoding/json"
+	"math/big"
+	"reflect"
+	"testing"
+
+	"gopkg.in/mgo.v2/bson"
+)
+
+func AssertBSONIsGood(object, dump interface{}, t *testing.T) {
+	data, err := bson.Marshal(object)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	if err = bson.Unmarshal(data, dump); err != nil {
+		t.Error(err)
+		return
+	}
+	if !reflect.DeepEqual(object, dump) {
+		t.Fail()
+	}
+}
+
+func AssertJSONIsGood(object, dump interface{}, t *testing.T) {
+	data, err := json.Marshal(object)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	if err = json.Unmarshal(data, dump); err != nil {
+		t.Error(err)
+		return
+	}
+	if !reflect.DeepEqual(object, dump) {
+		t.Fail()
+	}
+}
+
+func TestCypherGetBSON(t *testing.T) {
+	key := CreatePrivateKey(big.NewInt(101), big.NewInt(113))
+	cypher, err := key.Encrypt(big.NewInt(100), rand.Reader)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	data, err := bson.Marshal(cypher)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	cypher2 := new(Cypher)
+	if err = bson.Unmarshal(data, cypher2); err != nil {
+		t.Error(err)
+		return
+	}
+	if !reflect.DeepEqual(cypher, cypher2) {
+		t.Fail()
+	}
+}
+
+func TestSetPrivateKeyBson(t *testing.T) {
+	key := CreatePrivateKey(big.NewInt(101), big.NewInt(113))
+	AssertBSONIsGood(key, new(PrivateKey), t)
+
+}
+
+func TestGetBSONEmptyKey(t *testing.T) {
+	key := new(PrivateKey)
+	m, err := key.GetBSON()
+	if err != nil {
+		t.Error(err)
+	}
+	if !reflect.DeepEqual(make(map[string]string), m) {
+		t.Error(m)
+	}
+}
+
+func TestPartialDecryptionZKPJsonification(t *testing.T) {
+	pd := new(PartialDecryptionZKP)
+	pd.Key = new(ThresholdKey)
+	pd.Key.Threshold = 98
+	pd.Key.TotalNumberOfDecryptionServers = 230
+	pd.Id = 1
+	pd.Key.Vi = []*big.Int{b(77), b(67)} // vi is 67
+	pd.Key.N = b(131)
+	pd.Key.V = b(101)
+	pd.Decryption = b(171)
+	pd.E = b(112)
+	pd.C = b(99)
+	pd.Key.N = b(345)
+	pd.Key.G = b(99)
+	pd.Z = b(88)
+
+	AssertJSONIsGood(pd, new(PartialDecryptionZKP), t)
+}
+
+func TestPartialDecryptionZKPBSONification(t *testing.T) {
+	pd := new(PartialDecryptionZKP)
+	pd.Key = new(ThresholdKey)
+	pd.Key.Threshold = 98
+	pd.Key.TotalNumberOfDecryptionServers = 230
+	pd.Id = 1
+	pd.Key.Vi = []*big.Int{b(77), b(67)} // vi is 67
+	pd.Key.N = b(131)
+	pd.Key.V = b(101)
+	pd.Decryption = b(171)
+	pd.E = b(112)
+	pd.C = b(99)
+	pd.Key.N = b(345)
+	pd.Key.G = b(99)
+	pd.Z = b(88)
+
+	AssertBSONIsGood(pd, new(PartialDecryptionZKP), t)
+}
+
+func TestThresholdKeyBSON(t *testing.T) {
+	key := &ThresholdKey{PublicKey{b(9), b(8), nil}, 7, 6, b(3), []*big.Int{b(2), b(34)}}
+	AssertBSONIsGood(key, new(ThresholdKey), t)
+}