diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0c25a749..cd27b0f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -317,7 +317,7 @@ endif()
 
 
 # Check if PIP support compress/decompress using zlib library
-find_library(zlib_FOUND NAMES zlib z)
+find_library(zlib_FOUND NAMES z zlib)
 if(zlib_FOUND)
 	message(STATUS "Building with zlib compress support")
 	add_definitions(-DPIP_COMPRESS)
diff --git a/main.cpp b/main.cpp
index 5b82da8c..1d21569e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -60,11 +60,40 @@ int main(int argc, char *argv[]) {
 	piCout << "decrypted" << dba.toHex() << PIString(dba);
 
 
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 	piCout << "=======================================";
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 	PIAuth server(PIAuth::generateSign(pkey1));
+
 	msg = "This is Server with PIAuth";
 	server.setInfoData(msg.toUTF8());
+
 	PIAuth client(PIAuth::generateSign(pkey2));
+
 	client.setAuthorizedPublicKeys(PIVector<PIByteArray>() << server.getSignPublicKey());
 //	server.setAuthorizedPublicKeys(PIVector<PIByteArray>() << client.getSignPublicKey());
 	Obj o;
@@ -77,6 +106,9 @@ int main(int argc, char *argv[]) {
 	ba = server.startServer();
 	int st = PIAuth::AuthProbe;
 	piCout << "server" << st << ba.toHex() << ba.size();
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 //	ba[40] = 2;
 //		{
 //			int s;
@@ -94,6 +126,9 @@ int main(int argc, char *argv[]) {
 //			rsign = crypt.signMessage(ba, sign2);
 //			ba << rsign;
 //		}
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 	st = client.receive(ba);
 	piCout << "client" << st << ba.toHex() << ba.size();
 	st = server.receive(ba);
@@ -113,3 +148,26 @@ int main(int argc, char *argv[]) {
 	return 0;
 }
 
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diff --git a/src_main/io/pican.cpp b/src_main/io/pican.cpp
new file mode 100644
index 00000000..df488e7f
--- /dev/null
+++ b/src_main/io/pican.cpp
@@ -0,0 +1,131 @@
+#include "pican.h"
+#include "piincludes_p.h"
+#if !defined(WINDOWS) && !defined(MAC_OS)
+#  define PIP_CAN
+#endif
+#ifdef PIP_CAN
+#  include <sys/ioctl.h>
+#  include <net/if.h>
+#  include <linux/can.h>
+#  include <linux/can/raw.h>
+#  ifndef AF_CAN
+#  define AF_CAN 29
+#  endif
+#  ifndef PF_CAN
+#  define PF_CAN AF_CAN
+#  endif
+#endif
+
+
+//PRIVATE_DEFINITION_START(PICAN)
+//#ifdef PIP_CAN
+//int fd;
+//spi_ioc_transfer spi_ioc_tr;
+//#endif
+//PRIVATE_DEFINITION_END(PICAN)
+
+
+REGISTER_DEVICE(PICAN)
+
+
+PICAN::PICAN(const PIString & path, PIIODevice::DeviceMode mode) : PIIODevice(path, mode) {
+	setThreadedReadBufferSize(256);
+	setPath(path);
+	can_id = 0;
+}
+
+
+bool PICAN::openDevice() {
+#ifdef PIP_CAN
+	sock = socket(PF_CAN, SOCK_RAW, CAN_RAW);
+	if(sock < 0){
+		piCoutObj << "Error! while opening socket";
+		return false;
+	}
+	struct ifreq ifr;
+	strcpy(ifr.ifr_name, path.dataAscii());
+	if(ioctl(sock, SIOCGIFINDEX, &ifr) < 0){
+		piCoutObj << "Error! while determin the interface ioctl";
+		return false;
+	}
+	// bind socket to all CAN interface
+	struct sockaddr_can addr;
+	addr.can_family = AF_CAN;
+	addr.can_ifindex = ifr.ifr_ifindex;
+	if(bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0){
+		piCoutObj << "Error! while binding socket";
+		return false;
+	}
+	return true;
+#else
+	piCoutObj << "PICAN not implemented on windows";
+	return false;
+#endif
+}
+
+
+bool PICAN::closeDevice() {
+#ifdef PIP_CAN
+	if (sock > 0) ::close(sock);
+#endif
+	return true;
+}
+
+
+int PICAN::readDevice(void * read_to, int max_size) {
+#ifdef PIP_CAN
+	int ret = 0;
+	ret = read(sock, &frame, sizeof(can_frame));
+	if(ret < 0) {piCoutObj << "Error while read CAN frame " << ret; return -1;}
+	piCoutObj << "receive CAN frame Id =" << frame.can_id;
+	memcpy(read_to, frame.data, piMini(frame.can_dlc, max_size));
+	return max_size;
+#endif
+	return 0;
+}
+
+
+int PICAN::writeDevice(const void * data, int max_size) {
+#ifdef PIP_CAN
+	if (max_size > 8) {piCoutObj << "Can't send CAN frame bigger than 8 bytes (requested " << max_size << ")!"; return -1;}
+	can_frame frame;
+	frame.can_id = can_id;
+	frame.can_dlc = max_size;
+	memcpy(frame.data, data, max_size);
+	int ret = 0;
+	ret = write(sock, &frame, sizeof(can_frame));
+	if(ret < 0) {piCoutObj << "Error while send CAN frame " << ret; return -1;}
+	return max_size;
+#endif
+	return 0;
+}
+
+
+void PICAN::setCANID(int id) {
+	can_id = id;
+}
+
+
+int PICAN::CANID() const {
+	return can_id;
+}
+
+
+PIString PICAN::constructFullPathDevice() const {
+	PIString ret;
+	ret << path() << ":" << CANID();
+	return ret;
+}
+
+
+void PICAN::configureFromFullPathDevice(const PIString & full_path) {
+	PIStringList pl = full_path.split(":");
+	for (int i = 0; i < pl.size_s(); ++i) {
+		PIString p(pl[i]);
+		switch (i) {
+		case 0: setPath(p); break;
+		case 1: setCANID(p.toInt(16)); break;
+		default: break;
+		}
+	}
+}
diff --git a/src_main/io/pican.h b/src_main/io/pican.h
new file mode 100644
index 00000000..797a79cb
--- /dev/null
+++ b/src_main/io/pican.h
@@ -0,0 +1,33 @@
+#ifndef PICAN_H
+#define PICAN_H
+
+#include "piiodevice.h"
+
+
+class PIP_EXPORT PICAN: public PIIODevice
+{
+	PIIODEVICE(PICAN)
+public:
+	explicit PICAN(const PIString & path = PIString(), PIIODevice::DeviceMode mode = PIIODevice::ReadWrite);
+	~PICAN() {}
+
+protected:
+	bool openDevice();
+	bool closeDevice();
+	int readDevice(void * read_to, int max_size);
+	int writeDevice(const void * data, int max_size);
+
+	void setCANID(int id);
+	int CANID() const;
+
+	PIString fullPathPrefix() const {return PIStringAscii("can");}
+	PIString constructFullPathDevice() const;
+	void configureFromFullPathDevice(const PIString & full_path);
+	DeviceInfoFlags deviceInfoFlags() const {return PIIODevice::Reliable;}
+
+private:
+	int sock;
+	int can_id;
+};
+
+#endif // PICAN_H