only:m74.9 seed/key

java_console/io/src/test/java/com/rusefi/uds/SeedKeyTest.java

@@ -0,0 +1,27 @@
+package com.rusefi.uds;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class SeedKeyTest {
+    public static int Uds_Security_CalcKey(int secret, int seed, int rnd) {
+        if (rnd < 220)
+            rnd += 35;
+        else
+            rnd = 255;
+
+        for (int i = 0; i < rnd; i++) {
+            if (seed < 0)
+                seed = secret ^ seed << 1;
+            else
+                seed <<= 1;
+        }
+        return seed;
+    }
+
+    @Test
+    public void testAssert() {
+        assertEquals(0xC42F15AE, Uds_Security_CalcKey(0xB24F5249, 0x5D8A2010, 0xF0));
+    }
+}