add another test for AES keyschedule 128

tests/nodes/exec_aes_keyschedule.rb

@@ -78,4 +78,29 @@ class TestExecAesKeySchedule < Minitest::Unit::TestCase
             0x9b, 0x98, 0x98, 0xc9, 0xf9, 0xfb, 0xfb, 0xaa, 0x9b, 0x98, 0x98, 0xc9, 0xf9, 0xfb, 0xfb, 0xaa 
         ])
     end
+
+    def test_chain_aes128()
+        k = InputNode.new(name:"K0",dimensions:[4,4])
+        ks1 = AESKeyScheduleNode.new(name:"KS1", input:k.outputs[0], subtable:@sbox, rcon:1)
+        ks2 = AESKeyScheduleNode.new(name:"KS2", input:ks1.outputs[0], subtable:@sbox, rcon:2)
+        computed_outputs = compute_set_of_operators(
+            [0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0],
+            [
+                k.outputs[0][0][0],k.outputs[0][1][0],k.outputs[0][2][0],k.outputs[0][3][0],
+                k.outputs[0][0][1],k.outputs[0][1][1],k.outputs[0][2][1],k.outputs[0][3][1],
+                k.outputs[0][0][2],k.outputs[0][1][2],k.outputs[0][2][2],k.outputs[0][3][2],
+                k.outputs[0][0][3],k.outputs[0][1][3],k.outputs[0][2][3],k.outputs[0][3][3],
+            ],
+            [
+                ks2.outputs[0][0][0],ks2.outputs[0][1][0],ks2.outputs[0][2][0],ks2.outputs[0][3][0],
+                ks2.outputs[0][0][1],ks2.outputs[0][1][1],ks2.outputs[0][2][1],ks2.outputs[0][3][1],
+                ks2.outputs[0][0][2],ks2.outputs[0][1][2],ks2.outputs[0][2][2],ks2.outputs[0][3][2],
+                ks2.outputs[0][0][3],ks2.outputs[0][1][3],ks2.outputs[0][2][3],ks2.outputs[0][3][3],
+            ],
+            ks1.operators+ks2.operators
+        )
+        assert_equal(computed_outputs, [
+            0x9b, 0x98, 0x98, 0xc9, 0xf9, 0xfb, 0xfb, 0xaa, 0x9b, 0x98, 0x98, 0xc9, 0xf9, 0xfb, 0xfb, 0xaa 
+        ])
+    end
 end
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