3 files changed, 69 insertions, 0 deletions
diff --git a/ffi/go/bls/bls.go b/ffi/go/bls/bls.go
index 4d89baf..2448c3c 100644
--- a/ffi/go/bls/bls.go
+++ b/ffi/go/bls/bls.go
@@ -89,6 +89,16 @@ func (sec *SecretKey) SetLittleEndian(buf []byte) error {
 	return sec.v.SetLittleEndian(buf)
 }
 
+// SerializeToHexStr --
+func (sec *SecretKey) SerializeToHexStr() string {
+	return sec.v.GetString(IoSerializeHexStr)
+}
+
+// DeserializeHexStr --
+func (sec *SecretKey) DeserializeHexStr(s string) error {
+	return sec.v.SetString(s, IoSerializeHexStr)
+}
+
 // GetHexString --
 func (sec *SecretKey) GetHexString() string {
 	return sec.v.GetString(16)
@@ -184,6 +194,16 @@ func (pub *PublicKey) Deserialize(buf []byte) error {
 	return pub.v.Deserialize(buf)
 }
 
+// SerializeToHexStr --
+func (pub *PublicKey) SerializeToHexStr() string {
+	return pub.v.GetString(IoSerializeHexStr)
+}
+
+// DeserializeHexStr --
+func (pub *PublicKey) DeserializeHexStr(s string) error {
+	return pub.v.SetString(s, IoSerializeHexStr)
+}
+
 // GetHexString --
 func (pub *PublicKey) GetHexString() string {
 	return pub.v.GetString(16)
@@ -237,6 +257,16 @@ func (sign *Sign) Deserialize(buf []byte) error {
 	return sign.v.Deserialize(buf)
 }
 
+// SerializeToHexStr --
+func (sign *Sign) SerializeToHexStr() string {
+	return sign.v.GetString(IoSerializeHexStr)
+}
+
+// DeserializeHexStr --
+func (sign *Sign) DeserializeHexStr(s string) error {
+	return sign.v.SetString(s, IoSerializeHexStr)
+}
+
 // GetHexString --
 func (sign *Sign) GetHexString() string {
 	return sign.v.GetString(16)
diff --git a/ffi/go/bls/bls_test.go b/ffi/go/bls/bls_test.go
index 400f90d..adc2806 100644
--- a/ffi/go/bls/bls_test.go
+++ b/ffi/go/bls/bls_test.go
@@ -280,6 +280,41 @@ func testData(t *testing.T) {
 	}
 }
 
+func testSerializeToHexStr(t *testing.T) {
+	t.Log("testSerializeToHexStr")
+	var sec1, sec2 SecretKey
+	sec1.SetByCSPRNG()
+	s := sec1.SerializeToHexStr()
+	err := sec2.DeserializeHexStr(s)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !sec1.IsEqual(&sec2) {
+		t.Error("SecretKey not same")
+	}
+	pub1 := sec1.GetPublicKey()
+	s = pub1.SerializeToHexStr()
+	var pub2 PublicKey
+	err = pub2.DeserializeHexStr(s)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !pub1.IsEqual(&pub2) {
+		t.Error("PublicKey not same")
+	}
+	m := "doremi"
+	sign1 := sec1.Sign(m)
+	s = sign1.SerializeToHexStr()
+	var sign2 Sign
+	err = sign2.DeserializeHexStr(s)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !sign1.IsEqual(&sign2) {
+		t.Error("Sign not same")
+	}
+}
+
 func testOrder(t *testing.T, c int) {
 	var curve string
 	var field string
@@ -337,6 +372,7 @@ func test(t *testing.T, c int) {
 	testStringConversion(t)
 	testOrder(t, c)
 	testDHKeyExchange(t)
+	testSerializeToHexStr(t)
 }
 
 func TestMain(t *testing.T) {
diff --git a/ffi/go/bls/mcl.go b/ffi/go/bls/mcl.go
index 713a8cc..9771201 100644
--- a/ffi/go/bls/mcl.go
+++ b/ffi/go/bls/mcl.go
@@ -20,6 +20,9 @@ const CurveFp382_2 = C.mclBn_CurveFp382_2
 // BLS12_381
 const BLS12_381 = C.MCL_BLS12_381
 
+// IoSerializeHexStr
+const IoSerializeHexStr = C.MCLBN_IO_SERIALIZE_HEX_STR
+
 // GetMaxOpUnitSize --
 func GetMaxOpUnitSize() int {
 	return int(C.MCLBN_FP_UNIT_SIZE)