diff --git a/js/tools/build/ndn-js.js b/js/tools/build/ndn-js.js
index 7284c7e..73d2112 100644
--- a/js/tools/build/ndn-js.js
+++ b/js/tools/build/ndn-js.js
@@ -250,8 +250,8 @@
 BigInteger.prototype.millerRabin=bnpMillerRabin;BigInteger.prototype.clone=bnClone;BigInteger.prototype.intValue=bnIntValue;BigInteger.prototype.byteValue=bnByteValue;BigInteger.prototype.shortValue=bnShortValue;BigInteger.prototype.signum=bnSigNum;BigInteger.prototype.toByteArray=bnToByteArray;BigInteger.prototype.equals=bnEquals;BigInteger.prototype.min=bnMin;BigInteger.prototype.max=bnMax;BigInteger.prototype.and=bnAnd;BigInteger.prototype.or=bnOr;BigInteger.prototype.xor=bnXor;
 BigInteger.prototype.andNot=bnAndNot;BigInteger.prototype.not=bnNot;BigInteger.prototype.shiftLeft=bnShiftLeft;BigInteger.prototype.shiftRight=bnShiftRight;BigInteger.prototype.getLowestSetBit=bnGetLowestSetBit;BigInteger.prototype.bitCount=bnBitCount;BigInteger.prototype.testBit=bnTestBit;BigInteger.prototype.setBit=bnSetBit;BigInteger.prototype.clearBit=bnClearBit;BigInteger.prototype.flipBit=bnFlipBit;BigInteger.prototype.add=bnAdd;BigInteger.prototype.subtract=bnSubtract;
 BigInteger.prototype.multiply=bnMultiply;BigInteger.prototype.divide=bnDivide;BigInteger.prototype.remainder=bnRemainder;BigInteger.prototype.divideAndRemainder=bnDivideAndRemainder;BigInteger.prototype.modPow=bnModPow;BigInteger.prototype.modInverse=bnModInverse;BigInteger.prototype.pow=bnPow;BigInteger.prototype.gcd=bnGCD;BigInteger.prototype.isProbablePrime=bnIsProbablePrime;
-var LOG=0,NDN=function NDN(b){b=b||{};this.transport=(b.getTransport||function(){return new WebSocketTransport})();this.getHostAndPort=b.getHostAndPort||this.transport.defaultGetHostAndPort;this.host=void 0!==b.host?b.host:"localhost";this.port=b.port||9696;this.readyStatus=NDN.UNOPEN;this.onopen=b.onopen||function(){3<LOG&&console.log("NDN connection established.")};this.onclose=b.onclose||function(){3<LOG&&console.log("NDN connection closed.")};this.ccndid=null};NDN.UNOPEN=0;NDN.OPENED=1;
-NDN.CLOSED=2;NDN.ccndIdFetcher=new Name("/%C1.M.S.localhost/%C1.M.SRV/ccnd/KEY");NDN.prototype.createRoute=function(a,b){this.host=a;this.port=b};NDN.KeyStore=[];var KeyStoreEntry=function(a,b,c){this.keyName=a;this.rsaKey=b;this.timeStamp=c};NDN.addKeyEntry=function(a){null==NDN.getKeyByName(a.keyName)&&NDN.KeyStore.push(a)};
+var LOG=0,NDN=function NDN(b){b=b||{};this.transport=(b.getTransport||function(){return new WebSocketTransport})();this.getHostAndPort=b.getHostAndPort||this.transport.defaultGetHostAndPort;this.host=void 0!==b.host?b.host:"localhost";this.port=b.port||9696;this.readyStatus=NDN.UNOPEN;this.verify=void 0!==b.verify?b.verify:!0;this.onopen=b.onopen||function(){3<LOG&&console.log("NDN connection established.")};this.onclose=b.onclose||function(){3<LOG&&console.log("NDN connection closed.")};this.ccndid=
+null};NDN.UNOPEN=0;NDN.OPENED=1;NDN.CLOSED=2;NDN.ccndIdFetcher=new Name("/%C1.M.S.localhost/%C1.M.SRV/ccnd/KEY");NDN.prototype.createRoute=function(a,b){this.host=a;this.port=b};NDN.KeyStore=[];var KeyStoreEntry=function(a,b,c){this.keyName=a;this.rsaKey=b;this.timeStamp=c};NDN.addKeyEntry=function(a){null==NDN.getKeyByName(a.keyName)&&NDN.KeyStore.push(a)};
 NDN.getKeyByName=function(a){for(var b=null,c=0;c<NDN.KeyStore.length;c++)if(NDN.KeyStore[c].keyName.contentName.match(a.contentName)&&(null==b||NDN.KeyStore[c].keyName.contentName.components.length>b.keyName.contentName.components.length))b=NDN.KeyStore[c];return b};NDN.PITTable=[];var PITEntry=function(a,b){this.interest=a;this.closure=b;this.timerID=-1};
 NDN.getEntryForExpressedInterest=function(a){for(var b=null,c=0;c<NDN.PITTable.length;c++)if(NDN.PITTable[c].interest.matches_name(a)&&(null==b||NDN.PITTable[c].interest.name.components.length>b.interest.name.components.length))b=NDN.PITTable[c];return b};NDN.CSTable=[];var CSEntry=function(a,b){this.name=a;this.closure=b};function getEntryForRegisteredPrefix(a){for(var b=0;b<NDN.CSTable.length;b++)if(null!=NDN.CSTable[b].name.match(a))return NDN.CSTable[b];return null}
 NDN.makeShuffledGetHostAndPort=function(a,b){a=a.slice(0,a.length);DataUtils.shuffle(a);return function(){return 0==a.length?null:{host:a.splice(0,1)[0],port:b}}};
@@ -261,11 +261,11 @@
 1;3<LOG&&console.log("Send Interest registration packet.");d=new CSEntry(a.getName(),b);NDN.CSTable.push(d);this.transport.send(encodeToBinaryInterest(c));return 0};
 NDN.prototype.onReceivedElement=function(a){3<LOG&&console.log("Complete element received. Length "+a.length+". Start decoding.");var b=new BinaryXMLDecoder(a);if(b.peekStartElement(CCNProtocolDTags.Interest))3<LOG&&console.log("Interest packet received."),a=new Interest,a.from_ccnb(b),3<LOG&&console.log(a),b=escape(a.name.getName()),3<LOG&&console.log(b),b=getEntryForRegisteredPrefix(b),null!=b&&(a=new UpcallInfo(this,a,0,null),b.closure.upcall(Closure.UPCALL_INTEREST,a)==Closure.RESULT_INTEREST_CONSUMED&&
 null!=a.contentObject&&this.transport.send(encodeToBinaryContentObject(a.contentObject)));else if(b.peekStartElement(CCNProtocolDTags.ContentObject))if(3<LOG&&console.log("ContentObject packet received."),a=new ContentObject,a.from_ccnb(b),null==this.ccndid&&NDN.ccndIdFetcher.match(a.name))!a.signedInfo||!a.signedInfo.publisher||!a.signedInfo.publisher.publisherPublicKeyDigest?(console.log("Cannot contact router, close NDN now."),this.readyStatus=NDN.CLOSED,this.onclose()):(this.ccndid=a.signedInfo.publisher.publisherPublicKeyDigest,
-3<LOG&&console.log(ndn.ccndid),this.readyStatus=NDN.OPENED,this.onopen());else{var c=NDN.getEntryForExpressedInterest(a.name);if(null!=c){b=NDN.PITTable.indexOf(c);0<=b&&NDN.PITTable.splice(b,1);b=c.closure;clearTimeout(c.timerID);var d=function(a,b,c,d,e){this.contentObject=a;this.closure=b;this.keyName=c;this.sigHex=d;this.witness=e;Closure.call(this)},e=this;d.prototype.upcall=function(a,b){if(a==Closure.UPCALL_INTEREST_TIMED_OUT)console.log("In KeyFetchClosure.upcall: interest time out."),console.log(this.keyName.contentName.getName());
-else if(a==Closure.UPCALL_CONTENT){var c=decodeSubjectPublicKeyInfo(b.contentObject.content),d=!0==c.verifyByteArray(this.contentObject.rawSignatureData,this.witness,this.sigHex)?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD;this.closure.upcall(d,new UpcallInfo(e,null,0,this.contentObject));c=new KeyStoreEntry(g.keyName,c,(new Date).getTime());NDN.addKeyEntry(c)}else a==Closure.UPCALL_CONTENT_BAD&&console.log("In KeyFetchClosure.upcall: signature verification failed")};if(a.signedInfo&&a.signedInfo.locator&&
-a.signature){3<LOG&&console.log("Key verification...");var c=DataUtils.toHex(a.signature.signature).toLowerCase(),f=null;null!=a.signature.Witness&&(f=new Witness,f.decode(a.signature.Witness));var g=a.signedInfo.locator;if(g.type==KeyLocatorType.KEYNAME)if(3<LOG&&console.log("KeyLocator contains KEYNAME"),g.keyName.contentName.match(a.name))3<LOG&&console.log("Content is key itself"),d=decodeSubjectPublicKeyInfo(a.content),c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:
-Closure.UPCALL_CONTENT_BAD,b.upcall(c,new UpcallInfo(this,null,0,a));else{var j=NDN.getKeyByName(g.keyName);j?(3<LOG&&console.log("Local key cache hit"),d=j.rsaKey,c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD,b.upcall(c,new UpcallInfo(this,null,0,a))):(3<LOG&&console.log("Fetch key according to keylocator"),a=new d(a,b,g.keyName,c,f),this.expressInterest(g.keyName.contentName.getPrefix(4),a))}else g.type==KeyLocatorType.KEY?(3<LOG&&console.log("Keylocator contains KEY"),
-d=decodeSubjectPublicKeyInfo(a.signedInfo.locator.publicKey),c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD,b.upcall(Closure.UPCALL_CONTENT,new UpcallInfo(this,null,0,a))):(a=g.certificate,console.log("KeyLocator contains CERT"),console.log(a))}}}else console.log("Incoming packet is not Interest or ContentObject. Discard now.")};
+3<LOG&&console.log(ndn.ccndid),this.readyStatus=NDN.OPENED,this.onopen());else{var c=NDN.getEntryForExpressedInterest(a.name);if(null!=c)if(b=NDN.PITTable.indexOf(c),0<=b&&NDN.PITTable.splice(b,1),b=c.closure,clearTimeout(c.timerID),!1==this.verify)b.upcall(Closure.UPCALL_CONTENT_UNVERIFIED,new UpcallInfo(this,null,0,a));else{var d=function(a,b,c,d,e){this.contentObject=a;this.closure=b;this.keyName=c;this.sigHex=d;this.witness=e;Closure.call(this)},e=this;d.prototype.upcall=function(a,b){if(a==Closure.UPCALL_INTEREST_TIMED_OUT)console.log("In KeyFetchClosure.upcall: interest time out."),
+console.log(this.keyName.contentName.getName());else if(a==Closure.UPCALL_CONTENT){var c=decodeSubjectPublicKeyInfo(b.contentObject.content),d=!0==c.verifyByteArray(this.contentObject.rawSignatureData,this.witness,this.sigHex)?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD;this.closure.upcall(d,new UpcallInfo(e,null,0,this.contentObject));c=new KeyStoreEntry(g.keyName,c,(new Date).getTime());NDN.addKeyEntry(c)}else a==Closure.UPCALL_CONTENT_BAD&&console.log("In KeyFetchClosure.upcall: signature verification failed")};
+if(a.signedInfo&&a.signedInfo.locator&&a.signature){3<LOG&&console.log("Key verification...");var c=DataUtils.toHex(a.signature.signature).toLowerCase(),f=null;null!=a.signature.Witness&&(f=new Witness,f.decode(a.signature.Witness));var g=a.signedInfo.locator;if(g.type==KeyLocatorType.KEYNAME)if(3<LOG&&console.log("KeyLocator contains KEYNAME"),g.keyName.contentName.match(a.name))3<LOG&&console.log("Content is key itself"),d=decodeSubjectPublicKeyInfo(a.content),c=d.verifyByteArray(a.rawSignatureData,
+f,c),c=!0==c?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD,b.upcall(c,new UpcallInfo(this,null,0,a));else{var j=NDN.getKeyByName(g.keyName);j?(3<LOG&&console.log("Local key cache hit"),d=j.rsaKey,c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD,b.upcall(c,new UpcallInfo(this,null,0,a))):(3<LOG&&console.log("Fetch key according to keylocator"),a=new d(a,b,g.keyName,c,f),this.expressInterest(g.keyName.contentName.getPrefix(4),a))}else g.type==
+KeyLocatorType.KEY?(3<LOG&&console.log("Keylocator contains KEY"),d=decodeSubjectPublicKeyInfo(a.signedInfo.locator.publicKey),c=d.verifyByteArray(a.rawSignatureData,f,c),c=!0==c?Closure.UPCALL_CONTENT:Closure.UPCALL_CONTENT_BAD,b.upcall(Closure.UPCALL_CONTENT,new UpcallInfo(this,null,0,a))):(a=g.certificate,console.log("KeyLocator contains CERT"),console.log(a))}}}else console.log("Incoming packet is not Interest or ContentObject. Discard now.")};
 NDN.prototype.connectAndExpressInterest=function(a,b){var c=this.getHostAndPort();if(null==c)console.log("ERROR: No more hosts from getHostAndPort"),this.host=null;else if(c.host==this.host&&c.port==this.port)console.log("ERROR: The host returned by getHostAndPort is not alive: "+this.host+":"+this.port);else{this.host=c.host;this.port=c.port;console.log("Trying host from getHostAndPort: "+this.host);c=new Interest(new Name("/"));c.interestLifetime=4E3;var d=this,e=setTimeout(function(){console.log("Timeout waiting for host "+
 d.host);d.connectAndExpressInterest(a,b)},3E3);this.transport.expressInterest(this,c,new NDN.ConnectClosure(this,a,b,e))}};NDN.ConnectClosure=function(a,b,c,d){Closure.call(this);this.ndn=a;this.callerInterest=b;this.callerClosure=c;this.timerID=d};
 NDN.ConnectClosure.prototype.upcall=function(a){if(!(a==Closure.UPCALL_CONTENT||a==Closure.UPCALL_CONTENT_UNVERIFIED))return Closure.RESULT_ERR;clearTimeout(this.timerID);console.log(this.ndn.host+": Host is alive. Fetching callerInterest.");this.ndn.transport.expressInterest(this.ndn,this.callerInterest,this.callerClosure);return Closure.RESULT_OK};var BinaryXmlElementReader=function(a){this.elementListener=a;this.dataParts=[];this.structureDecoder=new BinaryXMLStructureDecoder};