Disable node signature checking when using WASM. This is temporary until we...

Disable node signature checking when using WASM. This is temporary until we can get access to a faster RSA implementation

cmix/nodes/request.go

@@ -8,6 +8,8 @@
 package nodes
 
 import (
+	"io"
+
 	"github.com/golang/protobuf/proto"
 	"github.com/pkg/errors"
 	jww "github.com/spf13/jwalterweatherman"
@@ -27,7 +29,6 @@ import (
 	"gitlab.com/xx_network/crypto/tls"
 	"gitlab.com/xx_network/primitives/id"
 	"gitlab.com/xx_network/primitives/netTime"
-	"io"
 )
 
 // requestKey is a helper function which constructs a ClientKeyRequest message.
@@ -184,7 +185,7 @@ func processRequestResponse(signedKeyResponse *pb.SignedKeyResponse,
 	}
 
 	// Verify the response signature
-	err = rsa.Verify(nodePubKey, opts.Hash, hashedResponse,
+	err = verifyNodeSignature(nodePubKey, opts.Hash, hashedResponse,
 		signedKeyResponse.KeyResponseSignedByGateway.Signature, opts)
 	if err != nil {
 		return nil, nil, 0,

cmix/nodes/verifyNodeSig.go

+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file.                                                              //
+////////////////////////////////////////////////////////////////////////////////
+
+//go:build !js || !wasm
+
+package nodes
+
+import (
+	"crypto"
+
+	"gitlab.com/xx_network/crypto/signature/rsa"
+)
+
+func verifyNodeSignature(pub *rsa.PublicKey, hash crypto.Hash,
+	hashed []byte, sig []byte, opts *rsa.Options) error {
+	// Verify the response signature
+	return rsa.Verify(pub, hash, hashed, sig, opts)
+}

cmix/nodes/verifyNodeSig_js.go

+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file.                                                              //
+////////////////////////////////////////////////////////////////////////////////
+
+//go:build js && wasm
+
+package nodes
+
+import (
+	"crypto"
+
+	"gitlab.com/xx_network/crypto/signature/rsa"
+)
+
+func verifyNodeSignature(pub *rsa.PublicKey, hash crypto.Hash,
+	hashed []byte, sig []byte, opts *rsa.Options) error {
+	jww.WARN.Printf("node signature checking disabled for wasm")
+	return nil
+}