Stealthkey AsSender functions obsolete

use StealthAddress instead

lib/expmt/stealthkey.js

@@ -44,15 +44,6 @@ Stealthkey.prototype.getSharedKeypairAsReceiver = function(senderPubkey) {
   return sharedKeypair;
 };
 
-Stealthkey.prototype.getSharedKeypairAsSender = function(senderKeypair) {
-  var sharedSecretPoint = this.scanKeypair.pubkey.point.mul(senderKeypair.privkey.bn);
-  var sharedSecretPubkey = Pubkey({point: sharedSecretPoint});
-  var buf = sharedSecretPubkey.toDER(true);
-  var sharedKeypair = KDF.sha256hmac2keypair(buf);
-
-  return sharedKeypair;
-};
-
 Stealthkey.prototype.getReceivePubkeyAsReceiver = function(senderPubkey) {
   var sharedKeypair = this.getSharedKeypairAsReceiver(senderPubkey);
   var pubkey = Pubkey({point: this.payloadKeypair.pubkey.point.add(sharedKeypair.pubkey.point)});
@@ -60,13 +51,6 @@ Stealthkey.prototype.getReceivePubkeyAsReceiver = function(senderPubkey) {
   return pubkey;
 };
 
-Stealthkey.prototype.getReceivePubkeyAsSender = function(senderKeypair) {
-  var sharedKeypair = this.getSharedKeypairAsSender(senderKeypair);
-  var pubkey = Pubkey({point: this.payloadKeypair.pubkey.point.add(sharedKeypair.pubkey.point)});
-
-  return pubkey;
-};
-
 Stealthkey.prototype.getReceiveKeypair = function(senderPubkey) {
   var sharedKeypair = this.getSharedKeypairAsReceiver(senderPubkey);
   var privkey = Privkey({bn: this.payloadKeypair.privkey.bn.add(sharedKeypair.privkey.bn).mod(Point.getN())});

test/stealthkey.js

@@ -71,32 +71,6 @@ describe('Stealthkey', function() {
 
   });
 
-  describe('#getSharedKeypairAsSender', function() {
-
-    it('should return a key', function() {
-      var stealthkey2 = new Stealthkey();
-      stealthkey2.payloadKeypair = new Keypair();
-      stealthkey2.payloadKeypair.pubkey = stealthkey.payloadKeypair.pubkey;
-      stealthkey2.scanKeypair = new Keypair();
-      stealthkey2.scanKeypair.pubkey = stealthkey.scanKeypair.pubkey;
-      var key = stealthkey2.getSharedKeypairAsSender(senderKeypair);
-      (key instanceof Keypair).should.equal(true);
-    });
-
-    it('should return the same key as getSharedKeypairAsReceiver', function() {
-      var stealthkey2 = new Stealthkey();
-      stealthkey2.payloadKeypair = new Keypair();
-      stealthkey2.payloadKeypair.pubkey = stealthkey.payloadKeypair.pubkey;
-      stealthkey2.scanKeypair = new Keypair();
-      stealthkey2.scanKeypair.pubkey = stealthkey.scanKeypair.pubkey;
-      var key = stealthkey2.getSharedKeypairAsSender(senderKeypair);
-
-      var key2 = stealthkey.getSharedKeypairAsReceiver(senderKeypair.pubkey);
-      key.toString().should.equal(key2.toString());
-    });
-
-  });
-
   describe('#getReceivePubkeyAsReceiver', function() {
     
     it('should return a pubkey', function() {
@@ -106,21 +80,6 @@ describe('Stealthkey', function() {
 
   });
 
-  describe('#getReceivePubkeyAsSender', function() {
-    
-    it('should return a pubkey', function() {
-      var pubkey = stealthkey.getReceivePubkeyAsSender(senderKeypair);
-      (pubkey instanceof Pubkey).should.equal(true);
-    });
-
-    it('should return the same pubkey as getReceivePubkeyAsReceiver', function() {
-      var pubkey = stealthkey.getReceivePubkeyAsSender(senderKeypair);
-      var pubkey2 = stealthkey.getReceivePubkeyAsReceiver(senderKeypair.pubkey);
-      pubkey2.toString().should.equal(pubkey.toString());
-    });
-
-  });
-
   describe('#getReceiveKeypair', function() {
 
     it('should return a key', function() {