1 files changed, 878 insertions, 0 deletions

diff --git a/src/cz/crcs/ectester/applet/AppletBase.java b/src/cz/crcs/ectester/applet/AppletBase.java
new file mode 100644
index 0000000..aa6bc07
--- /dev/null
+++ b/src/cz/crcs/ectester/applet/AppletBase.java
@@ -0,0 +1,878 @@
+package cz.crcs.ectester.applet;
+
+import javacard.framework.*;
+import javacard.security.*;
+
+public abstract class AppletBase extends Applet {
+
+    // MAIN INSTRUCTION CLASS
+    public static final byte CLA_ECTESTERAPPLET = (byte) 0xB0;
+
+    // INSTRUCTIONS
+    public static final byte INS_ALLOCATE = (byte) 0x5a;
+    public static final byte INS_CLEAR = (byte) 0x5b;
+    public static final byte INS_SET = (byte) 0x5c;
+    public static final byte INS_TRANSFORM = (byte) 0x5d;
+    public static final byte INS_GENERATE = (byte) 0x5e;
+    public static final byte INS_EXPORT = (byte) 0x5f;
+    public static final byte INS_ECDH = (byte) 0x70;
+    public static final byte INS_ECDH_DIRECT = (byte) 0x71;
+    public static final byte INS_ECDSA = (byte) 0x72;
+    public static final byte INS_ECDSA_SIGN = (byte) 0x73;
+    public static final byte INS_ECDSA_VERIFY = (byte) 0x74;
+    public static final byte INS_CLEANUP = (byte) 0x75;
+    public static final byte INS_ALLOCATE_KA = (byte) 0x76;
+    public static final byte INS_ALLOCATE_SIG = (byte) 0x77;
+    public static final byte INS_GET_INFO = (byte) 0x78;
+
+    // PARAMETERS for P1 and P2
+    public static final byte KEYPAIR_LOCAL = (byte) 0x01;
+    public static final byte KEYPAIR_REMOTE = (byte) 0x02;
+    public static final byte KEYPAIR_BOTH = KEYPAIR_LOCAL | KEYPAIR_REMOTE;
+    public static final byte EXPORT_TRUE = (byte) 0xff;
+    public static final byte EXPORT_FALSE = (byte) 0x00;
+
+    // STATUS WORDS
+    public static final short SW_SIG_VERIFY_FAIL = (short) 0x0ee1;
+    public static final short SW_DH_DHC_MISMATCH = (short) 0x0ee2;
+    public static final short SW_KEYPAIR_NULL = (short) 0x0ee3;
+    public static final short SW_KA_NULL = (short) 0x0ee4;
+    public static final short SW_SIGNATURE_NULL = (short) 0x0ee5;
+    public static final short SW_OBJECT_NULL = (short) 0x0ee6;
+    public static final short SW_Exception = (short) 0xff01;
+    public static final short SW_ArrayIndexOutOfBoundsException = (short) 0xff02;
+    public static final short SW_ArithmeticException = (short) 0xff03;
+    public static final short SW_ArrayStoreException = (short) 0xff04;
+    public static final short SW_NullPointerException = (short) 0xff05;
+    public static final short SW_NegativeArraySizeException = (short) 0xff06;
+    public static final short SW_CryptoException_prefix = (short) 0xf100;
+    public static final short SW_SystemException_prefix = (short) 0xf200;
+    public static final short SW_PINException_prefix = (short) 0xf300;
+    public static final short SW_TransactionException_prefix = (short) 0xf400;
+    public static final short SW_CardRuntimeException_prefix = (short) 0xf500;
+
+    //
+    public static final short BASE_221 = (short) 0x0221;
+    public static final short BASE_222 = (short) 0x0222;
+
+    //
+    public static final byte[] VERSION = {'v', '0', '.', '3', '.', '0'};
+
+    public static final short ARRAY_LENGTH = 0xff;
+    public static final short APDU_MAX_LENGTH = 1024;
+
+    // TEMPORARRY ARRAY IN RAM
+    byte[] ramArray = null;
+    byte[] ramArray2 = null;
+    byte[] apduArray = null;
+
+    RandomData randomData = null;
+
+    ECKeyTester keyTester = null;
+    ECKeyGenerator keyGenerator = null;
+    KeyPair localKeypair = null;
+    KeyPair remoteKeypair = null;
+
+    protected AppletBase(byte[] buffer, short offset, byte length) {
+        if (length > 9) {
+            /*
+            short dataOffset = offset;
+            // shift to privilege offset
+            dataOffset += (short) (1 + buffer[offset]);
+            // finally shift to Application specific offset
+            dataOffset += (short) (1 + buffer[dataOffset]);
+            // go to proprietary data
+            dataOffset++;
+            */
+
+            ramArray = JCSystem.makeTransientByteArray(ARRAY_LENGTH, JCSystem.CLEAR_ON_RESET);
+            ramArray2 = JCSystem.makeTransientByteArray(ARRAY_LENGTH, JCSystem.CLEAR_ON_RESET);
+            apduArray = JCSystem.makeTransientByteArray(APDU_MAX_LENGTH, JCSystem.CLEAR_ON_RESET);
+
+            randomData = RandomData.getInstance(RandomData.ALG_SECURE_RANDOM);
+            EC_Consts.randomData = randomData;
+
+            keyGenerator = new ECKeyGenerator();
+            keyTester = new ECKeyTester();
+        }
+    }
+
+    public void process(APDU apdu) throws ISOException {
+        // get the APDU buffer
+        byte[] apduBuffer = apdu.getBuffer();
+        byte cla = apduBuffer[ISO7816.OFFSET_CLA];
+        byte ins = apduBuffer[ISO7816.OFFSET_INS];
+
+        // ignore the applet select command dispatched to the process
+        if (selectingApplet()) {
+            return;
+        }
+
+        if (cla == CLA_ECTESTERAPPLET) {
+            try {
+                readAPDU(apdu, apduArray, APDU_MAX_LENGTH);
+
+                short length = 0;
+                switch (ins) {
+                    case INS_ALLOCATE_KA:
+                        length = insAllocateKA(apdu);
+                        break;
+                    case INS_ALLOCATE_SIG:
+                        length = insAllocateSig(apdu);
+                        break;
+                    case INS_ALLOCATE:
+                        length = insAllocate(apdu);
+                        break;
+                    case INS_CLEAR:
+                        length = insClear(apdu);
+                        break;
+                    case INS_SET:
+                        length = insSet(apdu);
+                        break;
+                    case INS_TRANSFORM:
+                        length = insTransform(apdu);
+                        break;
+                    case INS_GENERATE:
+                        length = insGenerate(apdu);
+                        break;
+                    case INS_EXPORT:
+                        length = insExport(apdu);
+                        break;
+                    case INS_ECDH:
+                        length = insECDH(apdu);
+                        break;
+                    case INS_ECDH_DIRECT:
+                        length = insECDH_direct(apdu);
+                        break;
+                    case INS_ECDSA:
+                        length = insECDSA(apdu);
+                        break;
+                    case INS_ECDSA_SIGN:
+                        length = insECDSA_sign(apdu);
+                        break;
+                    case INS_ECDSA_VERIFY:
+                        length = insECDSA_verify(apdu);
+                        break;
+                    case INS_CLEANUP:
+                        length = insCleanup(apdu);
+                        break;
+                    case INS_GET_INFO:
+                        length = insGetInfo(apdu);
+                        break;
+                    default:
+                        // The INS code is not supported by the dispatcher
+                        ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
+                        break;
+                }
+                apdu.setOutgoingAndSend((short) 0, length);
+
+            } catch (ISOException e) {
+                throw e; // Our exception from code, just re-emit
+            } catch (ArrayIndexOutOfBoundsException e) {
+                ISOException.throwIt(SW_ArrayIndexOutOfBoundsException);
+            } catch (ArithmeticException e) {
+                ISOException.throwIt(SW_ArithmeticException);
+            } catch (ArrayStoreException e) {
+                ISOException.throwIt(SW_ArrayStoreException);
+            } catch (NullPointerException e) {
+                ISOException.throwIt(SW_NullPointerException);
+            } catch (NegativeArraySizeException e) {
+                ISOException.throwIt(SW_NegativeArraySizeException);
+            } catch (CryptoException e) {
+                ISOException.throwIt((short) (SW_CryptoException_prefix | e.getReason()));
+            } catch (SystemException e) {
+                ISOException.throwIt((short) (SW_SystemException_prefix | e.getReason()));
+            } catch (PINException e) {
+                ISOException.throwIt((short) (SW_PINException_prefix | e.getReason()));
+            } catch (TransactionException e) {
+                ISOException.throwIt((short) (SW_TransactionException_prefix | e.getReason()));
+            } catch (CardRuntimeException e) {
+                ISOException.throwIt((short) (SW_CardRuntimeException_prefix | e.getReason()));
+            } catch (Exception e) {
+                ISOException.throwIt(SW_Exception);
+            }
+
+        } else ISOException.throwIt(ISO7816.SW_CLA_NOT_SUPPORTED);
+    }
+
+    private void readAPDU(APDU apdu, byte[] buffer, short length) {
+        short read = apdu.setIncomingAndReceive();
+        read += getOffsetCdata(apdu);
+        short total = getIncomingLength(apdu);
+        if (total > length) {
+            return;
+        }
+
+        byte[] apduBuffer = apdu.getBuffer();
+        short sum = 0;
+
+        do {
+            Util.arrayCopyNonAtomic(apduBuffer, (short) 0, buffer, sum, read);
+            sum += read;
+            read = apdu.receiveBytes((short) 0);
+        } while (sum < total);
+    }
+
+    abstract short getOffsetCdata(APDU apdu);
+
+    abstract short getIncomingLength(APDU apdu);
+
+    abstract short getBase();
+
+    /**
+     * Allocates KeyAgreement object, returns allocate SW.
+     *
+     * @param apdu DATA = byte KeyAgreementType
+     * @return length of response
+     */
+    private short insAllocateKA(APDU apdu) {
+        short cdata = getOffsetCdata(apdu);
+        byte kaType = apduArray[cdata];
+        short sw = keyTester.allocateKA(kaType);
+        Util.setShort(apdu.getBuffer(), (short) 0, sw);
+        return 2;
+    }
+
+    /**
+     * Allocates a Signature object, returns allocate SW.
+     *
+     * @param apdu DATA = byte SignatureType
+     * @return length of response
+     */
+    private short insAllocateSig(APDU apdu) {
+        short cdata = getOffsetCdata(apdu);
+        byte sigType = apduArray[cdata];
+        short sw = keyTester.allocateSig(sigType);
+        Util.setShort(apdu.getBuffer(), (short) 0, sw);
+        return 2;
+    }
+
+    /**
+     * Allocates local and remote keyPairs.
+     * returns allocate SWs
+     *
+     * @param apdu P1   = byte keyPair (KEYPAIR_* | ...)
+     *             P2   =
+     *             DATA = short keyLength
+     *             byte keyClass
+     * @return length of response
+     */
+    private short insAllocate(APDU apdu) {
+        byte keyPair = apduArray[ISO7816.OFFSET_P1];
+        short cdata = getOffsetCdata(apdu);
+        short keyLength = Util.getShort(apduArray, cdata);
+        byte keyClass = apduArray[(short) (cdata + 2)];
+
+        return allocate(keyPair, keyLength, keyClass, apdu.getBuffer(), (short) 0);
+    }
+
+    /**
+     * Clears local and remote keyPair's keys {@code .clearKey()}.
+     * returns clearKey SWs
+     *
+     * @param apdu P1   = byte keyPair (KEYPAIR_* | ...)
+     *             P2   =
+     * @return length of response
+     */
+    private short insClear(APDU apdu) {
+        byte keyPair = apduArray[ISO7816.OFFSET_P1];
+
+        short len = 0;
+        if ((keyPair & KEYPAIR_LOCAL) != 0) {
+            len += clear(localKeypair, apdu.getBuffer(), (short) 0);
+        }
+        if ((keyPair & KEYPAIR_REMOTE) != 0) {
+            len += clear(remoteKeypair, apdu.getBuffer(), len);
+        }
+
+        return len;
+    }
+
+    /**
+     * Sets curve parameters on local and remote keyPairs.
+     * returns setCurve SWs
+     *
+     * @param apdu P1   = byte keyPair (KEYPAIR_* | ...)
+     *             P2   = byte curve (EC_Consts.CURVE_*)
+     *             DATA = short params (EC_Consts.PARAMETER_* | ...)
+     *             <p>
+     *             if curveID = CURVE_EXTERNAL:
+     *             [short paramLength, byte[] param],
+     *             for all params in params,
+     *             in order: field,a,b,g,r,k,w,s
+     * @return length of response
+     */
+    private short insSet(APDU apdu) {
+        byte keyPair = apduArray[ISO7816.OFFSET_P1];
+        byte curve = apduArray[ISO7816.OFFSET_P2];
+        short cdata = getOffsetCdata(apdu);
+        short params = Util.getShort(apduArray, cdata);
+
+        short len = 0;
+
+        if ((keyPair & KEYPAIR_LOCAL) != 0) {
+            len += set(localKeypair, curve, params, apduArray, (short) (cdata + 2), apdu.getBuffer(), (short) 0);
+        }
+        if ((keyPair & KEYPAIR_REMOTE) != 0) {
+            len += set(remoteKeypair, curve, params, apduArray, (short) (cdata + 2), apdu.getBuffer(), len);
+        }
+
+        return len;
+    }
+
+    /**
+     * Transforms curve paramaters of local and remote keyPairs.
+     * returns transformCurve SWs
+     *
+     * @param apdu P1 = byte keyPair (KEYPAIR_* | ...)
+     *             P2 = byte key (EC_Consts.KEY_* | ...)
+     *             DATA = short params (EC_Consts.PARAMETER_* | ...)
+     *             short transformation (EC_Consts.TRANSFORMATION_* || ...)
+     * @return length of response
+     */
+    private short insTransform(APDU apdu) {
+        byte keyPair = apduArray[ISO7816.OFFSET_P1];
+        byte key = apduArray[ISO7816.OFFSET_P2];
+        short cdata = getOffsetCdata(apdu);
+        short params = Util.getShort(apduArray, cdata);
+        short transformation = Util.getShort(apduArray, (short) (cdata + 2));
+
+        short len = 0;
+        if ((keyPair & KEYPAIR_LOCAL) != 0) {
+            len += transform(localKeypair, key, params, transformation, apdu.getBuffer(), (short) 0);
+        }
+
+        if ((keyPair & KEYPAIR_REMOTE) != 0) {
+            len += transform(remoteKeypair, key, params, transformation, apdu.getBuffer(), len);
+        }
+
+        return len;
+    }
+
+    /**
+     * Generates the local and remote keyPairs.
+     * returns generate SWs
+     *
+     * @param apdu P1   = byte keyPair (KEYPAIR_* | ...)
+     *             P2   =
+     * @return length of response
+     */
+    private short insGenerate(APDU apdu) {
+        byte keyPair = apduArray[ISO7816.OFFSET_P1];
+
+        short len = 0;
+        if ((keyPair & KEYPAIR_LOCAL) != 0) {
+            len += generate(localKeypair, apdu.getBuffer(), (short) 0);
+        }
+        if ((keyPair & KEYPAIR_REMOTE) != 0) {
+            len += generate(remoteKeypair, apdu.getBuffer(), len);
+        }
+
+        return len;
+    }
+
+    /**
+     * Exports selected key and domain parameters from the selected keyPair and key.
+     *
+     * @param apdu P1   = byte keyPair (KEYPAIR_* | ...)
+     *             P2   = byte key (EC_Consts.KEY_* | ...)
+     *             DATA = short params
+     * @return length of response
+     */
+    private short insExport(APDU apdu) {
+        byte keyPair = apduArray[ISO7816.OFFSET_P1];
+        byte key = apduArray[ISO7816.OFFSET_P2];
+        short cdata = getOffsetCdata(apdu);
+        short params = Util.getShort(apduArray, cdata);
+
+        short swOffset = 0;
+        short len = (short) (keyPair == KEYPAIR_BOTH ? 4 : 2);
+
+        if ((keyPair & KEYPAIR_LOCAL) != 0) {
+            len += export(localKeypair, key, params, apdu.getBuffer(), swOffset, len);
+            swOffset += 2;
+        }
+        if ((keyPair & KEYPAIR_REMOTE) != 0) {
+            len += export(remoteKeypair, key, params, apdu.getBuffer(), swOffset, len);
+        }
+
+        return len;
+    }
+
+    /**
+     * Performs ECDH, between the pubkey specified in P1(local/remote) and the privkey specified in P2(local/remote).
+     * returns deriveSecret SW, {@code if(export == EXPORT_TRUE)} => short secretlen, byte[] secret
+     *
+     * @param apdu P1   = byte pubkey (KEYPAIR_*)
+     *             P2   = byte privkey (KEYPAIR_*)
+     *             DATA = byte export (EXPORT_TRUE || EXPORT_FALSE)
+     *             short transformation (EC_Consts.TRANSFORMATION_* | ...)
+     *             byte type (EC_Consts.KA_* | ...)
+     * @return length of response
+     */
+    private short insECDH(APDU apdu) {
+        byte pubkey = apduArray[ISO7816.OFFSET_P1];
+        byte privkey = apduArray[ISO7816.OFFSET_P2];
+        short cdata = getOffsetCdata(apdu);
+        byte export = apduArray[cdata];
+        short transformation = Util.getShort(apduArray, (short) (cdata + 1));
+        byte type = apduArray[(short) (cdata + 3)];
+
+        return ecdh(pubkey, privkey, export, transformation, type, apdu.getBuffer(), (short) 0);
+    }
+
+    /**
+     * Performs ECDH, directly between the privkey specified in P1(local/remote) and the raw data
+     *
+     * @param apdu P1   = byte privkey (KEYPAIR_*)
+     *             P2   = byte export (EXPORT_TRUE || EXPORT_FALSE)
+     *             DATA = short transformation (EC_Consts.TRANSFORMATION_* | ...)
+     *             byte type (EC_Consts.KA_* | ...)
+     *             short length
+     *             byte[] pubkey
+     * @return length of response
+     */
+    private short insECDH_direct(APDU apdu) {
+        byte privkey = apduArray[ISO7816.OFFSET_P1];
+        byte export = apduArray[ISO7816.OFFSET_P2];
+        short cdata = getOffsetCdata(apdu);
+        short transformation = Util.getShort(apduArray, cdata);
+        byte type = apduArray[(short) (cdata + 2)];
+        short length = Util.getShort(apduArray, (short) (cdata + 3));
+
+        return ecdh_direct(privkey, export, transformation, type, (short) (cdata + 5), length, apdu.getBuffer(), (short) 0);
+    }
+
+    /**
+     * Performs ECDSA signature and verification on data provided or random, using the keyPair in P1(local/remote).
+     * returns ecdsa SW, {@code if(export == EXPORT_TRUE)} => short signature_length, byte[] signature
+     *
+     * @param apdu P1   = byte keyPair (KEYPAIR_*)
+     *             P2   = byte export (EXPORT_TRUE || EXPORT_FALSE)
+     *             DATA = byte sigType
+     *             short dataLength (00 = random data generated, !00 = data length)
+     *             byte[] data
+     * @return length of response
+     */
+    private short insECDSA(APDU apdu) {
+        byte keyPair = apduArray[ISO7816.OFFSET_P1];
+        byte export = apduArray[ISO7816.OFFSET_P2];
+        short cdata = getOffsetCdata(apdu);
+        byte sigType = apduArray[cdata];
+
+        short len = 0;
+        if ((keyPair & KEYPAIR_LOCAL) != 0) {
+            len += ecdsa(localKeypair, sigType, export, apduArray, (short) (cdata + 1), apdu.getBuffer(), (short) 0);
+        }
+        if ((keyPair & KEYPAIR_REMOTE) != 0) {
+            len += ecdsa(remoteKeypair, sigType, export, apduArray, (short) (cdata + 1), apdu.getBuffer(), len);
+        }
+
+        return len;
+    }
+
+    /**
+     * @param apdu P1   = byte keyPair (KEYPAIR_*)
+     *             P2   = byte export (EXPORT_TRUE || EXPORT_FALSE)
+     *             DATA = byte sigType
+     *             short dataLength (00 = random data generated, !00 = data length)
+     *             byte[] data
+     * @return length of response
+     */
+    private short insECDSA_sign(APDU apdu) {
+        byte keyPair = apduArray[ISO7816.OFFSET_P1];
+        byte export = apduArray[ISO7816.OFFSET_P2];
+        short cdata = getOffsetCdata(apdu);
+        byte sigType = apduArray[cdata];
+
+        short len = 0;
+        if ((keyPair & KEYPAIR_LOCAL) != 0) {
+            len += ecdsa_sign(localKeypair, sigType, export, apduArray, (short) (cdata + 1), apdu.getBuffer(), (short) 0);
+        }
+        if ((keyPair & KEYPAIR_REMOTE) != 0) {
+            len += ecdsa_sign(remoteKeypair, sigType, export, apduArray, (short) (cdata + 1), apdu.getBuffer(), len);
+        }
+        return len;
+    }
+
+    /**
+     * @param apdu P1   = byte keyPair (KEYPAIR_*)
+     *             P2   = byte sigType
+     *             DATA = short dataLength (00 = random data generated, !00 = data length)
+     *             byte[] data
+     *             short sigLength
+     *             byte[] signature
+     * @return length of response
+     */
+    private short insECDSA_verify(APDU apdu) {
+        byte keyPair = apduArray[ISO7816.OFFSET_P1];
+        byte sigType = apduArray[ISO7816.OFFSET_P2];
+        short cdata = getOffsetCdata(apdu);
+
+        short len = 0;
+        if ((keyPair & KEYPAIR_LOCAL) != 0) {
+            len += ecdsa_verify(localKeypair, sigType, apduArray, cdata, apdu.getBuffer(), (short) 0);
+        }
+        if ((keyPair & KEYPAIR_REMOTE) != 0) {
+            len += ecdsa_verify(remoteKeypair, sigType, apduArray, cdata, apdu.getBuffer(), len);
+        }
+        return len;
+    }
+
+
+    /**
+     * Performs card memory cleanup via JCSystem.requestObjectDeletion()
+     *
+     * @param apdu no data
+     * @return length of response
+     */
+    private short insCleanup(APDU apdu) {
+        byte[] apdubuf = apdu.getBuffer();
+
+        return cleanup(apdubuf, (short) 0);
+    }
+
+    /**
+     * Gathers info about the applet and the card environment.
+     *
+     * @param apdu no data
+     * @return length of response
+     */
+    private short insGetInfo(APDU apdu) {
+        byte[] apdubuf = apdu.getBuffer();
+
+        return getInfo(apdubuf, (short) 0);
+    }
+
+    /**
+     * @param keyPair   which keyPair to use, local/remote (KEYPAIR_* | ...)
+     * @param keyLength key length to set
+     * @param keyClass  key class to allocate
+     * @param outBuffer buffer to write sw to
+     * @param outOffset offset into buffer
+     * @return length of data written to the buffer
+     */
+    private short allocate(byte keyPair, short keyLength, byte keyClass, byte[] outBuffer, short outOffset) {
+        short length = 0;
+        if ((keyPair & KEYPAIR_LOCAL) != 0) {
+            localKeypair = keyGenerator.allocatePair(keyClass, keyLength);
+            Util.setShort(outBuffer, outOffset, keyGenerator.getSW());
+            length += 2;
+        }
+
+        if ((keyPair & KEYPAIR_REMOTE) != 0) {
+            remoteKeypair = keyGenerator.allocatePair(keyClass, keyLength);
+            Util.setShort(outBuffer, (short) (outOffset + length), keyGenerator.getSW());
+            length += 2;
+        }
+
+        return length;
+    }
+
+    /**
+     * @param keyPair   KeyPair to clear
+     * @param outBuffer buffer to write sw to
+     * @param outOffset offset into buffer
+     * @return length of data written to the buffer
+     */
+    private short clear(KeyPair keyPair, byte[] outBuffer, short outOffset) {
+        short sw = keyGenerator.clearPair(keyPair, EC_Consts.KEY_BOTH);
+        Util.setShort(outBuffer, outOffset, sw);
+
+        return 2;
+    }
+
+    /**
+     * @param keyPair   KeyPair to set params on
+     * @param curve     curve to set (EC_Consts.CURVE_*)
+     * @param params    parameters to set (EC_Consts.PARAMETER_* | ...)
+     * @param inBuffer  buffer to read params from
+     * @param inOffset  input offset in buffer
+     * @param outBuffer buffer to write sw to
+     * @param outOffset output offset in buffer
+     * @return length of data written to the buffer
+     */
+    private short set(KeyPair keyPair, byte curve, short params, byte[] inBuffer, short inOffset, byte[] outBuffer, short outOffset) {
+        short sw = ISO7816.SW_NO_ERROR;
+
+        switch (curve) {
+            case EC_Consts.CURVE_default:
+                //default, dont set anything
+                break;
+            case EC_Consts.CURVE_external:
+                //external
+                sw = keyGenerator.setExternalCurve(keyPair, params, inBuffer, inOffset);
+                break;
+            default:
+                //custom
+                sw = keyGenerator.setCurve(keyPair, curve, params, ramArray, (short) 0);
+                break;
+        }
+
+        Util.setShort(outBuffer, outOffset, sw);
+        return 2;
+    }
+
+    /**
+     * @param keyPair        KeyPair to transform
+     * @param key            key to transform (EC_Consts.KEY_* | ...)
+     * @param params         parameters to transform (EC_Consts.PARAMETER_* | ...)
+     * @param transformation transformation type (EC_Consts.TRANSFORMATION_*)
+     * @param outBuffer      buffer to output sw to
+     * @param outOffset      output offset in buffer
+     * @return length of data written to the buffer
+     */
+    private short transform(KeyPair keyPair, byte key, short params, short transformation, byte[] outBuffer, short outOffset) {
+        short sw = keyGenerator.transformCurve(keyPair, key, params, transformation, ramArray, (short) 0);
+        Util.setShort(outBuffer, outOffset, sw);
+        return 2;
+    }
+
+    /**
+     * @param keyPair   KeyPair to generate
+     * @param outBuffer buffer to output sw to
+     * @param outOffset output offset in buffer
+     * @return length of data written to the buffer
+     */
+    private short generate(KeyPair keyPair, byte[] outBuffer, short outOffset) {
+        short sw = keyGenerator.generatePair(keyPair);
+        Util.setShort(outBuffer, outOffset, sw);
+
+        return 2;
+    }
+
+    /**
+     * @param keyPair   KeyPair to export from
+     * @param key       which key to export from (EC_Consts.KEY_PUBLIC | EC_Consts.KEY_PRIVATE)
+     * @param params    which params to export (EC_Consts.PARAMETER_* | ...)
+     * @param outBuffer buffer to export params to
+     * @param swOffset  offset to output sw to buffer
+     * @param outOffset output offset in buffer
+     * @return length of data written to the buffer
+     */
+    private short export(KeyPair keyPair, byte key, short params, byte[] outBuffer, short swOffset, short outOffset) {
+        short length = 0;
+
+        short sw = ISO7816.SW_NO_ERROR;
+        if ((key & EC_Consts.KEY_PUBLIC) != 0) {
+            //export params from public
+            length += keyGenerator.exportParameters(keyPair, EC_Consts.KEY_PUBLIC, params, outBuffer, outOffset);
+            sw = keyGenerator.getSW();
+        }
+        if ((key & EC_Consts.KEY_PRIVATE) != 0 && sw == ISO7816.SW_NO_ERROR) {
+            //export params from private
+            length += keyGenerator.exportParameters(keyPair, EC_Consts.KEY_PRIVATE, params, outBuffer, (short) (outOffset + length));
+            sw = keyGenerator.getSW();
+        }
+        Util.setShort(outBuffer, swOffset, sw);
+
+        return length;
+    }
+
+    /**
+     * @param pubkey         keyPair to use for public key, (KEYPAIR_LOCAL || KEYPAIR_REMOTE)
+     * @param privkey        keyPair to use for private key, (KEYPAIR_LOCAL || KEYPAIR_REMOTE)
+     * @param export         whether to export ECDH secret
+     * @param transformation whether to transform the pubkey before ECDH
+     * @param type           KeyAgreement type to test
+     * @param outBuffer      buffer to write sw to, and export ECDH secret {@code if(export == EXPORT_TRUE)}
+     * @param outOffset      output offset in buffer
+     * @return length of data written to the buffer
+     */
+    private short ecdh(byte pubkey, byte privkey, byte export, short transformation, byte type, byte[] outBuffer, short outOffset) {
+        short length = 0;
+
+        KeyPair pub = ((pubkey & KEYPAIR_LOCAL) != 0) ? localKeypair : remoteKeypair;
+        KeyPair priv = ((privkey & KEYPAIR_LOCAL) != 0) ? localKeypair : remoteKeypair;
+
+        short secretLength = 0;
+        if (keyTester.getKaType() == type) {
+            secretLength = keyTester.testKA(priv, pub, ramArray, (short) 0, ramArray2, (short) 0, transformation);
+        } else {
+            short allocateSW = keyTester.allocateKA(type);
+            if (allocateSW == ISO7816.SW_NO_ERROR) {
+                secretLength = keyTester.testKA(priv, pub, ramArray, (short) 0, ramArray2, (short) 0, transformation);
+            }
+        }
+        Util.setShort(outBuffer, outOffset, keyTester.getSW());
+        length += 2;
+
+        if ((export == EXPORT_TRUE)) {
+            Util.setShort(outBuffer, (short) (outOffset + length), secretLength);
+            length += 2;
+            Util.arrayCopyNonAtomic(ramArray2, (short) 0, outBuffer, (short) (outOffset + length), secretLength);
+            length += secretLength;
+        }
+
+        return length;
+    }
+
+    private short ecdh_direct(byte privkey, byte export, short transformation, byte type, short keyOffset, short keyLength, byte[] outBuffer, short outOffset) {
+        short length = 0;
+
+        KeyPair priv = ((privkey & KEYPAIR_LOCAL) != 0) ? localKeypair : remoteKeypair;
+
+        short secretLength = 0;
+        if (keyTester.getKaType() == type) {
+            secretLength = keyTester.testKA_direct(priv, apduArray, keyOffset, keyLength, ramArray2, (short) 0, transformation);
+        } else {
+            short allocateSW = keyTester.allocateKA(type);
+            if (allocateSW == ISO7816.SW_NO_ERROR) {
+                secretLength = keyTester.testKA_direct(priv, apduArray, keyOffset, keyLength, ramArray2, (short) 0, transformation);
+            }
+        }
+
+        Util.setShort(outBuffer, outOffset, keyTester.getSW());
+        length += 2;
+
+        if ((export == EXPORT_TRUE)) {
+            Util.setShort(outBuffer, (short) (outOffset + length), secretLength);
+            length += 2;
+            Util.arrayCopyNonAtomic(ramArray2, (short) 0, outBuffer, (short) (outOffset + length), secretLength);
+            length += secretLength;
+        }
+        return length;
+    }
+
+    /**
+     * @param sign      keyPair to use for signing and verification
+     * @param sigType   Signature type to use
+     * @param export    whether to export ECDSA signature
+     * @param inBuffer  buffer to read dataLength and data to sign from
+     * @param inOffset  input offset in buffer
+     * @param outBuffer buffer to write sw to, and export ECDSA signature {@code if(export == EXPORT_TRUE)}
+     * @param outOffset output offset in buffer
+     * @return length of data written to the buffer
+     */
+    private short ecdsa(KeyPair sign, byte sigType, byte export, byte[] inBuffer, short inOffset, byte[] outBuffer, short outOffset) {
+        short length = 0;
+
+        short dataLength = Util.getShort(inBuffer, inOffset);
+        if (dataLength == 0) { //no data to sign
+            //generate random
+            dataLength = 64;
+            randomData.generateData(ramArray, (short) 0, dataLength);
+        } else {
+            Util.arrayCopyNonAtomic(inBuffer, (short) (inOffset + 2), ramArray, (short) 0, dataLength);
+        }
+
+        short signatureLength = 0;
+        if (keyTester.getSigType() == sigType) {
+            signatureLength = keyTester.testECDSA((ECPrivateKey) sign.getPrivate(), (ECPublicKey) sign.getPublic(), ramArray, (short) 0, dataLength, ramArray2, (short) 0);
+        } else {
+            short allocateSW = keyTester.allocateSig(sigType);
+            if (allocateSW == ISO7816.SW_NO_ERROR) {
+                signatureLength = keyTester.testECDSA((ECPrivateKey) sign.getPrivate(), (ECPublicKey) sign.getPublic(), ramArray, (short) 0, dataLength, ramArray2, (short) 0);
+            }
+        }
+        Util.setShort(outBuffer, outOffset, keyTester.getSW());
+        length += 2;
+
+        if (export == EXPORT_TRUE) {
+            Util.setShort(outBuffer, (short) (outOffset + length), signatureLength);
+            length += 2;
+
+            Util.arrayCopyNonAtomic(ramArray2, (short) 0, outBuffer, (short) (outOffset + length), signatureLength);
+            length += signatureLength;
+        }
+
+        return length;
+    }
+
+    private short ecdsa_sign(KeyPair sign, byte sigType, byte export, byte[] inBuffer, short inOffset, byte[] outBuffer, short outOffset) {
+        short length = 0;
+
+        short dataLength = Util.getShort(inBuffer, inOffset);
+        if (dataLength == 0) { //no data to sign
+            //generate random
+            dataLength = 64;
+            randomData.generateData(ramArray, (short) 0, dataLength);
+        } else {
+            Util.arrayCopyNonAtomic(inBuffer, (short) (inOffset + 2), ramArray, (short) 0, dataLength);
+        }
+
+        short signatureLength = 0;
+        if (keyTester.getSigType() == sigType) {
+            signatureLength = keyTester.testECDSA_sign((ECPrivateKey) sign.getPrivate(), ramArray, (short) 0, dataLength, ramArray2, (short) 0);
+        } else {
+            short allocateSW = keyTester.allocateSig(sigType);
+            if (allocateSW == ISO7816.SW_NO_ERROR) {
+                signatureLength = keyTester.testECDSA_sign((ECPrivateKey) sign.getPrivate(), ramArray, (short) 0, dataLength, ramArray2, (short) 0);
+            }
+        }
+        Util.setShort(outBuffer, outOffset, keyTester.getSW());
+        length += 2;
+
+        if (export == EXPORT_TRUE) {
+            Util.setShort(outBuffer, (short) (outOffset + length), signatureLength);
+            length += 2;
+
+            Util.arrayCopyNonAtomic(ramArray2, (short) 0, outBuffer, (short) (outOffset + length), signatureLength);
+            length += signatureLength;
+        }
+
+        return length;
+    }
+
+    private short ecdsa_verify(KeyPair verify, byte sigType, byte[] inBuffer, short inOffset, byte[] outBuffer, short outOffset) {
+        short length = 0;
+
+        short dataLength = Util.getShort(inBuffer, inOffset);
+        short dataOffset = (short) (inOffset + 2);
+        short sigLength = Util.getShort(inBuffer, (short) (dataOffset + dataLength));
+        short sigOffset = (short) (dataOffset + dataLength + 2);
+
+        if (keyTester.getSigType() == sigType) {
+            keyTester.testECDSA_verify((ECPublicKey) verify.getPublic(), inBuffer, dataOffset, dataLength, inBuffer, sigOffset, sigLength);
+        } else {
+            short allocateSW = keyTester.allocateSig(sigType);
+            if (allocateSW == ISO7816.SW_NO_ERROR) {
+                keyTester.testECDSA_verify((ECPublicKey) verify.getPublic(), inBuffer, dataOffset, dataLength, inBuffer, sigOffset, sigLength);
+            }
+        }
+        Util.setShort(outBuffer, outOffset, keyTester.getSW());
+        length += 2;
+
+        return length;
+    }
+
+    /**
+     * @param buffer buffer to write sw to
+     * @param offset output offset in buffer
+     * @return length of data written to the buffer
+     */
+    private short cleanup(byte[] buffer, short offset) {
+        short sw = ISO7816.SW_NO_ERROR;
+        try {
+            if (JCSystem.isObjectDeletionSupported())
+                JCSystem.requestObjectDeletion();
+        } catch (CardRuntimeException crex) {
+            sw = crex.getReason();
+        }
+
+        Util.setShort(buffer, offset, sw);
+        return 2;
+    }
+
+    /**
+     * @param buffer buffer to write sw to
+     * @param offset output offset in buffer
+     * @return length of data written to the buffer
+     */
+    private short getInfo(byte[] buffer, short offset) {
+        short length = 0;
+        Util.setShort(buffer, (short) (offset + length), ISO7816.SW_NO_ERROR);
+        length += 2;
+        Util.setShort(buffer, (short) (offset + length), (short) VERSION.length);
+        length += 2;
+        Util.arrayCopyNonAtomic(VERSION, (short) 0, buffer, (short) (offset + length), (short) (VERSION.length));
+        length += VERSION.length;
+        Util.setShort(buffer, (short) (offset + length), getBase());
+        length += 2;
+        Util.setShort(buffer, (short) (offset + length), JCSystem.getVersion());
+        length += 2;
+        Util.setShort(buffer, (short) (offset + length), (short) (JCSystem.isObjectDeletionSupported() ? 1 : 0));
+        length += 2;
+        return length;
+    }
+}