Update README.md

README.md

@@ -1,11 +1,11 @@
 ECTester
-=======
+========
 
 Tests support and behavior of smartcards with JavaCard platform with focus on Eliptic curves (TYPE_EC_FP and TYPE_EC_F2M).
 
-Usage:
-
-1. Upload simpleECC.cap using your favorite tool (e.g., GlobalPlatformPro tool https://github.com/martinpaljak/GlobalPlatform)
+Usage
+------
+1. Upload simpleECC.cap using your favorite tool (e.g., [GlobalPlatformPro tool](https://github.com/martinpaljak/GlobalPlatform))
 2. Run java -jar SimpleAPDU.jar
 3. Inspect output log with annotated results
 
@@ -16,4 +16,23 @@ Following operations are tested:
 - Generation of shared secret via ECDH
 - Behavior of card when invalid curves/points are provided (shoudl fail)
 
-If you are interested in testing support for other JavaCard algorithms, please visit: JCAlgTester project: https://github.com/crocs-muni/JCAlgTest
+Example output
+--------------
+
+    EC type:                                            ALG_EC_FP
+    EC key length (bits):                               224 bits
+      KeyPair object allocation:                        OK	  (0x9000)
+      Generate key with def curve (fails if no def):    fail  (ILLEGAL_VALUE,	0x1)
+      Set valid custom curve:                           OK	  (0x9000)
+      Generate key with valid curve:                    OK	  (0x9000)
+    !!ECDH agreement with valid point:                  fail	(0x9000)
+      ECDH agreement with invalid point (fail is good): fail  (unknown,	0x6f00)
+      Set invalid custom curve (fail is good):          fail  (ILLEGAL_VALUE,	0x1)
+      Generate key with invalid curve (fail is good):   fail  (skipped,	0xee1)
+
+
+*Explanation: ALG_EC_FP with 224b curve was tested. Is supported by card (KeyPair object allocation: OK), don't have preset default curve (Generate key with def curve: fail), custom curve can be set (Set valid custom curve: OK), new keypair can be generated (Generate key with valid curve: OK), ECDH key agreement failed to execute (ECDH agreement with valid point: fail) altough it was supposed to suceed (log line is therefore marked with !!), ECDH wil fail (expected behavior) if invalid point is provided (ECDH agreement with invalid point: fail), invalid custom curve cannot be set (expected behavior) (Set invalid custom curve: fail) and new keypair cannot be generated with invalid curve (Generate key with invalid curve: skipped) - last test was skipped as invalid curve canot be set.*
+
+
+If you are interested in testing support for other JavaCard algorithms, please visit JCAlgTester project: https://github.com/crocs-muni/JCAlgTest
+