diff --git a/CanUds.c b/CanUds.c
index 684475f..8368f8c 100644
--- a/CanUds.c
+++ b/CanUds.c
@@ -15,9 +15,6 @@
 #define LOG_SIGN "CAN_UDS"
 #define LOGGER env->logger
 
-uint32_t randomSecuritySeed = 0x853A08FB;
-
-
 extern uint32_t generate_key(uint32_t seed);
 
 
@@ -975,14 +972,16 @@ static uint16_t SecurityAccess_27(tCanUds *env) {
             env->dataResponse[5] = 0;
         } else {
 
-            if (randomSecuritySeed == 0) {
-                randomSecuritySeed = 0x11223344;
+            env->randomSecuritySeed = getRandom32(env->adcTask0);
+
+            if (env->randomSecuritySeed == 0) {
+                env->randomSecuritySeed = 0x11223344;
             }
 
-            env->dataResponse[2] = randomSecuritySeed >> 24;
-            env->dataResponse[3] = randomSecuritySeed >> 16;
-            env->dataResponse[4] = randomSecuritySeed >> 8;
-            env->dataResponse[5] = randomSecuritySeed;
+            env->dataResponse[2] = env->randomSecuritySeed >> 24;
+            env->dataResponse[3] = env->randomSecuritySeed >> 16;
+            env->dataResponse[4] = env->randomSecuritySeed >> 8;
+            env->dataResponse[5] = env->randomSecuritySeed;
         }
         return 6;
     }
@@ -1013,7 +1012,7 @@ static uint16_t SecurityAccess_27(tCanUds *env) {
         uint32_t securitySeedFromServer =
                 (env->data.data[2] << 24) | (env->data.data[3] << 16) | (env->data.data[4] << 8) | env->data.data[5];
 
-        uint32_t securitySeedMy = generate_key(randomSecuritySeed);
+        uint32_t securitySeedMy = generate_key(env->randomSecuritySeed);
 
         if (securitySeedMy != securitySeedFromServer) {
             ++env->SA.counter_max_attempts_default;
@@ -1360,12 +1359,14 @@ void CanUds_Init(
         tSerialPortFrameIO *CanIO,
         tDeviceStorage *deviceStorage,
         tCanSpamTransmitter *canSpamTransmitter,
+        tAdcTask *adcTask0,
         tLoggerInterface *logger) {
 
     env->logger = logger;
     env->CanIO = CanIO;
     env->deviceStorage = deviceStorage;
     env->Diagnostic = Diagnostic;
+    env->adcTask0 = adcTask0;
     env->filterIdCount = 2;
     env->canSpamTransmitter = canSpamTransmitter;
     env->queue = osMessageQueueNew(CAN_US_QUEUE_SIZE, sizeof(tCanTP_data), NULL);
diff --git a/CanUds.h b/CanUds.h
index 7fbe448..3fff669 100644
--- a/CanUds.h
+++ b/CanUds.h
@@ -9,6 +9,7 @@
 #include "DeviceStorage.h"
 #include "DiagnosticTask.h"
 #include "CanSpamTransmitter.h"
+#include "AdcTasks.h"
 
 #define LOG_UDS 1
 
@@ -143,6 +144,8 @@ typedef struct {
 
     osMessageQueueId_t queue;
 
+    tAdcTask *adcTask0;
+
     tCanTP_data data;
     uint8_t dataResponse[1024];
 
@@ -158,6 +161,8 @@ typedef struct {
 
     tCanSpamTransmitter *canSpamTransmitter;
 
+    uint32_t randomSecuritySeed;
+
     struct {
         bool requestSequenceRequestSeed;
         bool stateSecurityAccess;
@@ -181,6 +186,7 @@ void CanUds_Init(
         tSerialPortFrameIO *CanIO,
         tDeviceStorage *deviceStorage,
         tCanSpamTransmitter *canSpamTransmitter,
+        tAdcTask *adcTask0,
         tLoggerInterface *logger);
 
 void CanSerialPortCanUds_Start(tCanUds *env);