diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/BaseNfcActivity.java | 56 |
1 files changed, 46 insertions, 10 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/BaseNfcActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/BaseNfcActivity.java index e68684c52..44db22ff2 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/BaseNfcActivity.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/BaseNfcActivity.java @@ -674,16 +674,7 @@ public abstract class BaseNfcActivity extends BaseActivity { // SW1/2 0x9000 is the generic "ok" response, which we expect most of the time. // See specification, page 51 String accepted = "9000"; - - // Command APDU for VERIFY command (page 32) - String login = - "00" // CLA - + "20" // INS - + "00" // P1 - + String.format("%02x", mode) // P2 - + String.format("%02x", pin.length) // Lc - + Hex.toHexString(pin); - String response = nfcCommunicate(login); // login + String response = tryPin(mode, pin); // login if (!response.equals(accepted)) { throw new CardException("Bad PIN!", parseCardStatus(response)); } @@ -698,6 +689,51 @@ public abstract class BaseNfcActivity extends BaseActivity { } } + public void nfcResetCard() throws IOException { + String accepted = "9000"; + + // try wrong PIN 4 times until counter goes to C0 + byte[] pin = "XXXXXX".getBytes(); + for (int i = 0; i <= 4; i++) { + String response = tryPin(0x81, pin); + if (response.equals(accepted)) { // Should NOT accept! + throw new CardException("Should never happen, XXXXXX has been accepted!", parseCardStatus(response)); + } + } + + // try wrong Admin PIN 4 times until counter goes to C0 + byte[] adminPin = "XXXXXXXX".getBytes(); + for (int i = 0; i <= 4; i++) { + String response = tryPin(0x83, adminPin); + if (response.equals(accepted)) { // Should NOT accept! + throw new CardException("Should never happen, XXXXXXXX has been accepted", parseCardStatus(response)); + } + } + + // reactivate card! + String reactivate1 = "00" + "e6" + "00" + "00"; + String reactivate2 = "00" + "44" + "00" + "00"; + String response1 = nfcCommunicate(reactivate1); + String response2 = nfcCommunicate(reactivate2); + if (!response1.equals(accepted) || !response2.equals(accepted)) { + throw new CardException("Reactivating failed!", parseCardStatus(response1)); + } + + } + + private String tryPin(int mode, byte[] pin) throws IOException { + // Command APDU for VERIFY command (page 32) + String login = + "00" // CLA + + "20" // INS + + "00" // P1 + + String.format("%02x", mode) // P2 + + String.format("%02x", pin.length) // Lc + + Hex.toHexString(pin); + + return nfcCommunicate(login); + } + /** Modifies the user's PW1 or PW3. Before sending, the new PIN will be validated for * conformance to the card's requirements for key length. * |