use equal method from openssl

uses spacemonkeygo/openssl#126

crypto/openssl_common.go

@@ -63,15 +63,21 @@ func (pk *opensslPublicKey) Raw() ([]byte, error) {
 
 // Equals checks whether this key is equal to another
 func (pk *opensslPublicKey) Equals(k Key) bool {
-	a, err := pk.Raw()
-	if err != nil {
-		return false
-	}
-	b, err := k.Raw()
-	if err != nil {
-		return false
+	k0, ok := k.(*RsaPublicKey)
+	if !ok {
+		a, err := pk.Raw()
+		if err != nil {
+			return false
+		}
+		b, err := k.Raw()
+		if err != nil {
+			return false
+		}
+
+		return bytes.Equal(a, b)
 	}
-	return bytes.Equal(a, b)
+
+	return pk.key.Equal(k0.opensslPublicKey.key)
 }
 
 // Sign returns a signature of the input data
@@ -104,13 +110,19 @@ func (sk *opensslPrivateKey) Raw() ([]byte, error) {
 
 // Equals checks whether this key is equal to another
 func (sk *opensslPrivateKey) Equals(k Key) bool {
-	a, err := sk.Raw()
-	if err != nil {
-		return false
-	}
-	b, err := k.Raw()
-	if err != nil {
-		return false
+	k0, ok := k.(*RsaPrivateKey)
+	if !ok {
+		a, err := sk.Raw()
+		if err != nil {
+			return false
+		}
+		b, err := k.Raw()
+		if err != nil {
+			return false
+		}
+
+		return bytes.Equal(a, b)
 	}
-	return bytes.Equal(a, b)
+
+	return sk.key.Equal(k0.opensslPrivateKey.key)
 }

go.mod

@@ -15,3 +15,5 @@ require (
 	go.opencensus.io v0.21.0
 	golang.org/x/crypto v0.0.0-20190618222545-ea8f1a30c443
 )
+
+replace github.com/spacemonkeygo/openssl => github.com/dignifiedquire/openssl v0.0.0-20190628113709-80f7894f8393

go.sum

@@ -21,6 +21,8 @@ github.com/coreos/go-semver v0.3.0 h1:wkHLiw0WNATZnSG7epLsujiMCgPAc9xhjJ4tgnAxmf
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495 h1:6IyqGr3fnd0tM3YxipK27TUskaOVUjU2nG45yzwcQKY=
 github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dignifiedquire/openssl v0.0.0-20190628113709-80f7894f8393 h1:B92kIXsWHWxJF8o6rtFGipDDFHbL7Fq8u8o8wM4OWYk=
+github.com/dignifiedquire/openssl v0.0.0-20190628113709-80f7894f8393/go.mod h1:7AyxJNCJ7SBZ1MfVQCWD6Uqo2oubI2Eq2y2eqf+A5r0=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/gogo/protobuf v1.2.1 h1:/s5zKNz0uPFCZ5hddgPdo2TK2TVrUNMn0OOX8/aZMTE=
 github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=