Examples of org.jpos.security.EncryptedPIN

org.jpos.security.EncryptedPIN

The PIN (Personal Identification Number), is used to authenticate card holders. A user enters his/her PIN on the pin-pad (also called pin entry device) of a terminal (whether ATM or POS). The terminal forms the PIN Block, which is a mix of the PIN and the account number.
In a typical environment, the PIN Block (not the PIN) gets encrypted and sent to the acquirer. This Encrypted PIN Block is the typical content of the PIN Data ISO Field (Field 52). This class represents an encrypted PIN, no matter by whom it is encrypted. Typically a PIN is encrypted under one of these three:
1- Under a terminal PIN key (like TPK or DUKPT)
2- Under an Interchange PIN key (like ZPK)
3- Under the the security module itself (i.e. under LMK)
This class knows nothing about, who encrypted it.

This class represents an encrypted PIN using:
1- The PIN Block (encrypted)
2- The account number (the 12 right-most digits of the account number excluding the check digit)
3- The PIN Block Format

The PIN Block Format specifies how the clear pin (as entered by the card holder) and the account number get mixed to form the PIN Block.

@author Hani Samuel Kirollos @version $Revision$ $Date$ @see SMAdapter

    @BeforeClass
    public static void setUpClass() throws Exception {
      jcesecmod = new JCESecurityModule(PREFIX+"secret.lmk");
      pinUnderLMK = jcesecmod.encryptPIN("1234", "1234567890123");
      pinUnderTPK = jcesecmod.exportPINImpl(pinUnderLMK, tpk, SMAdapter.FORMAT01);
      pinUnderZPK  =  new EncryptedPIN("ABE38E29B58EA392", SMAdapter.FORMAT01, accountNoA);
    }

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    }




    @Test
    public void testDecryptPINImpl() throws Throwable {
        EncryptedPIN ep  =  new EncryptedPIN("B7D085B0EB9E0956",(byte)0, "12Characters");
        ep.setAccountNumber("12Characters");
        String pin = jcesecmod.decryptPINImpl(ep);
        String expected = "123456789012";
        assertEquals(expected, pin);
    }

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        }
    }


    @Test
    public void testEncryptPINImpl1() throws Throwable {
        EncryptedPIN ep = jcesecmod.encryptPINImpl("123456789012", "12Characters");
        byte[] expected = ISOUtil.hex2byte("B7D085B0EB9E0956");
        assertArrayEquals(expected, ep.getPINBlock());
        assertEquals(SMAdapter.FORMAT00, ep.getPINBlockFormat());
    }

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        }
    }


    @Test
    public void testExportPINImpl() throws Throwable {
        EncryptedPIN ep = jcesecmod.encryptPINImpl("1234", "123456789012");
        EncryptedPIN pinUnderZPK = jcesecmod.exportPINImpl(ep, zpk, SMAdapter.FORMAT01);
        byte[] expected = ISOUtil.hex2byte("3C0CA40863092C3A");
        assertArrayEquals(expected, pinUnderZPK.getPINBlock());
        assertEquals(SMAdapter.FORMAT01, pinUnderZPK.getPINBlockFormat());
        assertEquals("123456789012", pinUnderZPK.getAccountNumber());
    }

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    }


    @Test
    public void testImportPINImplThrowsNullPointerException() throws Throwable {
        try {
            new JCESecurityModule().importPINImpl(new EncryptedPIN("testJCESecurityModulePinBlockHexString", (byte) 0,
                    "testJCESecurityModuleAccountNumber"), null);
            fail("Expected NullPointerException to be thrown");
        } catch (NullPointerException ex) {
            assertNull("ex.getMessage()", ex.getMessage());
        }

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    @Test
    public void testImportPINImplThrowsNullPointerException1() throws Throwable {
        byte[] keyBytes = new byte[0];
        try {
            new JCESecurityModule().importPINImpl(new EncryptedPIN("testJCESecurityModulePinBlockHexString", (byte) 0,
                    "testJCESecurityModuleAccountNumber"), new SecureDESKey((short) 100, "testJCESecurityModuleKeyType", keyBytes,
                    "testString".getBytes()));
            fail("Expected NullPointerException to be thrown");
        } catch (NullPointerException ex) {
            assertNull("ex.getMessage()", ex.getMessage());

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        }
    }


    @Test
    public void testImportPINImpl() throws Throwable {
        EncryptedPIN pinUnderKd1 = new EncryptedPIN("3C0CA40863092C3A", SMAdapter.FORMAT01,"1234567890120");
        EncryptedPIN ep = jcesecmod.importPINImpl(pinUnderKd1, zpk);
        String pin = jcesecmod.decryptPINImpl(ep);
        assertEquals("1234", pin);
    }

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    }


    @Test
    public void testTranslatePINImplThrowsNullPointerException() throws Throwable {
        try {
            new JCESecurityModule().translatePINImpl(new EncryptedPIN("testString".getBytes(), (byte) 0,
                    "testJCESecurityModuleAccountNumber"), null, new SecureDESKey(), (byte) 0);
            fail("Expected NullPointerException to be thrown");
        } catch (NullPointerException ex) {
            assertNull("ex.getMessage()", ex.getMessage());
        }

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    @Test
    public void testTranslatePINImplThrowsNullPointerException1() throws Throwable {
        byte[] keyBytes = new byte[0];
        try {
            new JCESecurityModule().translatePINImpl(new EncryptedPIN(), new SecureDESKey((short) 100,
                    "testJCESecurityModuleKeyType", keyBytes, "testString".getBytes()), new SecureDESKey(), (byte) 0);
            fail("Expected NullPointerException to be thrown");
        } catch (NullPointerException ex) {
            assertNull("ex.getMessage()", ex.getMessage());
        }

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        }
    }


    @Test
    public void testTranslatePINImpl() throws Throwable {
        EncryptedPIN pinUnderZPK = new EncryptedPIN("3C0CA40863092C3A", SMAdapter.FORMAT01,"1234567890120");
        EncryptedPIN pinUnderTPK = jcesecmod.translatePINImpl(pinUnderZPK, zpk, tpk, SMAdapter.FORMAT01);
        //Clear keys are that same so after translation expected result must be unchanged
        byte[] expected = ISOUtil.hex2byte("3C0CA40863092C3A");
        assertArrayEquals(expected, pinUnderTPK.getPINBlock());
        assertEquals(SMAdapter.FORMAT01, pinUnderTPK.getPINBlockFormat());
        assertEquals("123456789012", pinUnderTPK.getAccountNumber());
    }

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Related Classes of org.jpos.security.EncryptedPIN

org.jpos.security.jceadapter.DUKPTTest

org.jpos.security.jceadapter.JCESecurityModuleTest

java.security.InvalidParameterException

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