diff options
Diffstat (limited to 'src/cz/crcs/ectester/applet/ECTesterApplet.java')
| -rw-r--r-- | src/cz/crcs/ectester/applet/ECTesterApplet.java | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/src/cz/crcs/ectester/applet/ECTesterApplet.java b/src/cz/crcs/ectester/applet/ECTesterApplet.java index dfdd0f0..cb2c43f 100644 --- a/src/cz/crcs/ectester/applet/ECTesterApplet.java +++ b/src/cz/crcs/ectester/applet/ECTesterApplet.java @@ -44,10 +44,11 @@ public class ECTesterApplet extends Applet { //INSTRUCTIONS public static final byte INS_ALLOCATE = (byte) 0x5a; - public static final byte INS_SET = (byte) 0x5b; - public static final byte INS_GENERATE = (byte) 0x5c; - public static final byte INS_ECDH = (byte) 0x5d; - public static final byte INS_ECDSA = (byte) 0x5e; + public static final byte INS_CLEAR = (byte) 0x5b; + public static final byte INS_SET = (byte) 0x5c; + public static final byte INS_GENERATE = (byte) 0x5d; + public static final byte INS_ECDH = (byte) 0x5e; + public static final byte INS_ECDSA = (byte) 0x5f; //PARAMETERS for P1 and P2 public static final byte KEYPAIR_LOCAL = (byte) 0x01; @@ -127,6 +128,9 @@ public class ECTesterApplet extends Applet { case INS_ALLOCATE: insAllocate(apdu); break; + case INS_CLEAR: + insClear(apdu); + break; case INS_SET: insSet(apdu); break; @@ -170,6 +174,25 @@ public class ECTesterApplet extends Applet { } /** + * + * @param apdu P1 = byte keyPair (KEYPAIR_* | ...) + * P2 = + */ + private void insClear(APDU apdu) { + apdu.setIncomingAndReceive(); + byte[] apdubuf = apdu.getBuffer(); + byte keyPair = apdubuf[ISO7816.OFFSET_P1]; + + short len = 0; + if ((keyPair & KEYPAIR_LOCAL) != 0) + len += clear(localKeypair, apdubuf, (short) 0); + if ((keyPair & KEYPAIR_REMOTE) != 0) + len += clear(remoteKeypair, apdubuf, len); + + apdu.setOutgoingAndSend((short) 0, len); + } + + /** * Sets curve parameters on local and remote keyPairs. * returns setCurve SWs, set params if export * @@ -306,6 +329,13 @@ public class ECTesterApplet extends Applet { return length; } + private short clear(KeyPair keyPair, byte[] buffer, short offset) { + short sw = keyGenerator.clearPair(keyPair, ECKeyGenerator.KEY_BOTH); + Util.setShort(buffer, offset, sw); + + return 2; + } + /** * @param keyPair KeyPair to set params on * @param curve curve to set (EC_Consts.CURVE_*) |