diff --git a/server/src/hosts/master.hpp b/server/src/hosts/master.hpp
index 9a9eaaa..7fd2d8f 100644
--- a/server/src/hosts/master.hpp
+++ b/server/src/hosts/master.hpp
@@ -72,8 +72,9 @@ private:
     bool authed;
     int auth_attempts;
     const int MAX_AUTH_ATTEMPTS = 3;
-    std::string license;
 
+    int32_t server_id;
+    std::string license;
 
     const db::QueryList* queries;
 };
diff --git a/server/src/hosts/master_intra.cpp b/server/src/hosts/master_intra.cpp
index 4c3b245..af24a61 100644
--- a/server/src/hosts/master_intra.cpp
+++ b/server/src/hosts/master_intra.cpp
@@ -15,43 +15,54 @@ sosc::MasterIntraPool::MasterIntraPool() {
         "WHERE `KEY_ID` = ? AND `SECRET` = ?"
     ));
 
-#define QRY_LICENSE_LIMIT 1
+#define QRY_LICENSE_VERIFY 1
+    this->queries.push_back(new db::Query(
+            "SELECT COUNT(*) FROM `SERVER_LICENSES` "
+            "WHERE `KEY_ID` = ?"
+        ));
+
+#define QRY_LICENSE_LIMIT 2
     this->queries.push_back(new db::Query(
         "SELECT `ALLOWANCE` FROM `SERVER_LICENSES` WHERE `KEY_ID` = ?"
     ));
 
-#define QRY_LICENSE_ACTIVE_COUNT 2
+#define QRY_LICENSE_ACTIVE_COUNT 3
     this->queries.push_back(new db::Query(
         "SELECT COUNT(*) FROM `SERVER_LIST` WHERE `LICENSE` = ?"
     , DB_USE_MEMORY));
 
-#define QRY_LICENSE_ADD 3
+#define QRY_LICENSE_ADD 4
     this->queries.push_back(new db::Query(
         "INSERT OR IGNORE INTO `SERVER_LICENSES` "
         "(`KEY_ID`, `SECRET`, `ALLOWANCE`) "
         "VALUES (?, RANDOMBLOB(512), ?)"
     ));
 
-#define QRY_LICENSE_REMOVE 4
+#define QRY_LICENSE_REMOVE 5
     this->queries.push_back(new db::Query(
         "DELETE FROM `SERVER_LICENSES` "
         "WHERE `KEY_ID` = ?"
     ));
 
-#define QRY_LICENSE_MODIFY 5
+#define QRY_LICENSE_MODIFY 6
     this->queries.push_back(new db::Query(
         "UPDATE `SERVER_LICENSES` "
         "SET `ALLOWANCE` = ? WHERE `KEY_ID` = ?"
     ));
 
-#define QRY_SERVER_LIST_ADD 6
+#define QRY_SERVER_LIST_ADD 7
     this->queries.push_back(new db::Query(
         "INSERT INTO `SERVER_LIST` "
         "(`NAME`, `LICENSE`, `IP_ADDR`, `PORT`) "
         "VALUES (?, ?, ?, ?)"
     , DB_USE_MEMORY));
 
-#define QRY_SERVER_LIST_DELETE 7
+#define QRY_SERVER_LIST_GET_ID 8
+    this->queries.push_back(new db::Query(
+        "SELECT MAX(`ID`) FROM `SERVER_LIST`"
+    , DB_USE_MEMORY));
+
+#define QRY_SERVER_LIST_DELETE 9
     this->queries.push_back(new db::Query(
         "DELETE FROM `SERVER_LIST` WHERE `ID` = ?"
     , DB_USE_MEMORY));
@@ -106,8 +117,9 @@ bool sosc::MasterIntra::InitAttempt(sosc::Packet& pck) {
         return this->Close(
             Packet(kEncryptionError, { net::htonv<uint16_t>(0x101) }));
 
-
+    this->cipher = cgc::Cipher(this->key);
     this->sock.Send(response);
+    this->sock.SetCipher(&this->cipher);
 }
 
 bool sosc::MasterIntra::Authentication(sosc::Packet& pck) {
@@ -149,6 +161,10 @@ bool sosc::MasterIntra::Authentication(sosc::Packet& pck) {
     query->BindInt32(net::ntohv<uint16_t>(pck[1]), 3);
     query->NonQuery();
 
+    query = this->queries->at(QRY_SERVER_LIST_GET_ID);
+    query->Reset();
+    this->server_id = query->ScalarInt32();
+
     _ctx.license_check_mtx.unlock();
 
     this->sock.Send(Packet(kPositiveAck, { packetId }));
@@ -187,6 +203,7 @@ bool sosc::MasterIntra::StatusUpdate(sosc::Packet &pck) {
         return this->Close();
 
 
+
     return true;
 }
 
diff --git a/server/src/sock/intrasock.cpp b/server/src/sock/intrasock.cpp
index ec23170..1baaa5c 100644
--- a/server/src/sock/intrasock.cpp
+++ b/server/src/sock/intrasock.cpp
@@ -6,6 +6,7 @@
 
 sosc::IntraClient::IntraClient() {
     this->client_open = false;
+    this->cipher = nullptr;
 }
 
 bool sosc::IntraClient::Open(std::string host, uint16_t port) {
@@ -21,6 +22,15 @@ void sosc::IntraClient::Open(TcpClient client) {
     this->client_open = true;
 }
 
+bool sosc::IntraClient::IsCiphered() const {
+    return this->cipher != nullptr;
+}
+
+void sosc::IntraClient::SetCipher(cgc::Cipher *cipher) {
+    this->cipher = cipher;
+    cipher->Parse(&this->buffer);
+}
+
 int sosc::IntraClient::Receive(Packet* packet, bool block) {
     if(!this->client_open)
         return PCK_ERR;
@@ -32,9 +42,12 @@ int sosc::IntraClient::Receive(Packet* packet, bool block) {
             return PCK_ERR;
         if(!block && !first_recv)
             return PCK_MORE;
-        
+
+        std::string::size_type offset = this->buffer.size();
         status = this->client.Receive
             (&this->buffer, SOSC_TCP_APPEND | (block ? SOSC_TCP_BLOCK : 0));
+        if(this->IsCiphered())
+            this->cipher->Parse(&this->buffer, offset);
             
         if(status == -1)
             return PCK_ERR;
@@ -50,6 +63,9 @@ bool sosc::IntraClient::Send(const Packet& packet) {
     
     std::string packet_raw;
     packet.ToString(&packet_raw);
+    if(this->IsCiphered())
+        this->cipher->Parse(&packet_raw);
+
     return this->client.Send(packet_raw) == 0;
 }
 
diff --git a/server/src/sock/intrasock.hpp b/server/src/sock/intrasock.hpp
index 1e736d6..e527ab2 100644
--- a/server/src/sock/intrasock.hpp
+++ b/server/src/sock/intrasock.hpp
@@ -3,13 +3,17 @@
 
 #include "tcpsock.hpp"
 #include "packet.hpp"
+#include "../crypto/cipher.hpp"
 
 namespace sosc {
 class IntraClient {
 public:
     IntraClient();
     bool Open(std::string host, uint16_t port);
-    
+
+    bool IsCiphered() const;
+    void SetCipher(cgc::Cipher* cipher);
+
     int Receive(Packet* packet, bool block = false);
     bool Send(const Packet& packet);
     
@@ -31,6 +35,7 @@ private:
     bool client_open;
     TcpClient client;
     std::string buffer;
+    cgc::Cipher* cipher;
     
     friend class IntraServer;
 };