function cackeyListCertificates(chromeCallback) {
	var callbackId;

	if (GoogleSmartCard.IS_DEBUG_BUILD) {
		console.log("[cackey] Asked to provide a list of certificates -- throwing that request over to the NaCl side... ");
	}

	callbackId = cackeyOutstandingCallbackCounter + 1;
	callbackId = ++cackeyOutstandingCallbackCounter;

	cackeyInitPCSC(function() {
		cackeyHandle.postMessage(
			{
				'target': "cackey",
				'command': "listcertificates",
				'id': callbackId
			}
		);

		cackeyOutstandingCallbackCounter = callbackId;
		cackeyOutstandingCallbacks[callbackId] = chromeCallback;

		if (GoogleSmartCard.IS_DEBUG_BUILD) {
			console.log("[cackey] Thrown.");
		}
	}, chromeCallback);

	return;
}

/*
 * Handler for messages from Chrome related to listing readers
 */
function cackeyListReaders(chromeCallback) {
	var callbackId;

	if (GoogleSmartCard.IS_DEBUG_BUILD) {
		console.log("[cackey] Asked to provide a list of readers -- throwing that request over to the NaCl side... ");
	}

	callbackId = cackeyOutstandingCallbackCounter + 1;
	callbackId = ++cackeyOutstandingCallbackCounter;

	cackeyInitPCSC(function() {
		cackeyHandle.postMessage(
			{
				'target': "cackey",
				'command': "listreaders",
				'id': callbackId
			}
		);

		cackeyOutstandingCallbackCounter = callbackId;
		cackeyOutstandingCallbacks[callbackId] = chromeCallback;

		if (GoogleSmartCard.IS_DEBUG_BUILD) {
			console.log("[cackey] Thrown.");
		}
	}, chromeCallback);

	delete digestHeader;

	if (GoogleSmartCard.IS_DEBUG_BUILD) {
		console.log("[cackey] Asked to sign a message -- throwing that request over to the NaCl side... ");
	}

	callbackId = cackeyOutstandingCallbackCounter + 1;
	callbackId = ++cackeyOutstandingCallbackCounter;

	command = {
		'target': "cackey",
		'command': "sign",
		'id': callbackId,
		'certificate': signRequest.certificate,
		'data': digest.buffer
	};

	certificateId = cackeyCertificateToPINID(command.certificate);

	if (cackeyCertificateToPINMap[certificateId] && cackeyCertificateToPINMap[certificateId].pin) {
		command.pin = cackeyCertificateToPINMap[certificateId].pin;

		cackeyCertificateToPINMapUpdateLastUsed(certificateId);
	}

	cackeyInitPCSC(function() {
		cackeyHandle.postMessage(command);

		cackeyOutstandingCallbackCounter = callbackId;
		cackeyOutstandingCallbacks[callbackId] = chromeCallback;

		if (GoogleSmartCard.IS_DEBUG_BUILD) {
			console.log("[cackey] Thrown.");
		}
	}, chromeCallback);