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-rw-r--r--src/applets/ECKeyGenerator.java276
1 files changed, 0 insertions, 276 deletions
diff --git a/src/applets/ECKeyGenerator.java b/src/applets/ECKeyGenerator.java
deleted file mode 100644
index 2eb5679..0000000
--- a/src/applets/ECKeyGenerator.java
+++ /dev/null
@@ -1,276 +0,0 @@
-package applets;
-
-import javacard.framework.ISO7816;
-import javacard.framework.ISOException;
-import javacard.framework.Util;
-import javacard.security.CryptoException;
-import javacard.security.ECPrivateKey;
-import javacard.security.ECPublicKey;
-import javacard.security.KeyPair;
-
-/**
- *
- */
-public class ECKeyGenerator {
-
- private KeyPair ecKeyPair = null;
- private ECPrivateKey ecPrivateKey = null;
- private ECPublicKey ecPublicKey = null;
-
- public static final byte KEY_PUBLIC = 0x01;
- public static final byte KEY_PRIVATE = 0x02;
- public static final byte KEY_BOTH = KEY_PUBLIC | KEY_PRIVATE;
-
-
- public short allocatePair(byte keyClass, short keyLength) {
- short result = ISO7816.SW_NO_ERROR;
- try {
- ecKeyPair = new KeyPair(keyClass, keyLength);
- ecPublicKey = (ECPublicKey) ecKeyPair.getPublic();
- ecPrivateKey = (ECPrivateKey) ecKeyPair.getPrivate();
- } catch (CryptoException ce) {
- result = ce.getReason();
- } catch (Exception e) {
- result = ISO7816.SW_UNKNOWN;
- }
- return result;
- }
-
- public boolean isAllocated() {
- return ecKeyPair != null;
- }
-
- public short generatePair() {
- short result = ISO7816.SW_NO_ERROR;
- try {
- ecKeyPair.genKeyPair();
- ecPublicKey = (ECPublicKey) ecKeyPair.getPublic();
- ecPrivateKey = (ECPrivateKey) ecKeyPair.getPrivate();
- } catch (CryptoException ce) {
- result = ce.getReason();
- } catch (Exception e) {
- result = ISO7816.SW_UNKNOWN;
- }
- return result;
- }
-
- public short setCustomCurve(byte keyClass, short keyLength, byte[] buffer, short offset) {
- return setCustomCurve(EC_Consts.getCurve(keyClass, keyLength), buffer, offset);
- }
-
- public short setCustomCurve(byte curve, byte[] buffer, short offset) {
- byte alg = EC_Consts.getCurveType(curve);
- short sw = ISO7816.SW_NO_ERROR;
- short length;
- if (alg == KeyPair.ALG_EC_FP) {
- length = EC_Consts.getCurveParameter(curve, EC_Consts.PARAMETER_FP, buffer, offset);
- sw = setParameter(KEY_BOTH, EC_Consts.PARAMETER_FP, buffer, offset, length);
- } else if (alg == KeyPair.ALG_EC_F2M) {
- length = EC_Consts.getCurveParameter(curve, EC_Consts.PARAMETER_F2M, buffer, offset);
- sw = setParameter(KEY_BOTH, EC_Consts.PARAMETER_F2M, buffer, offset, length);
- }
- if (sw != ISO7816.SW_NO_ERROR) return sw;
-
- //go through all params
- short param = EC_Consts.PARAMETER_A;
- while (param <= EC_Consts.PARAMETER_K) {
- length = EC_Consts.getCurveParameter(curve, param, buffer, offset);
- sw = setParameter(KEY_BOTH, param, buffer, offset, length);
- if (sw != ISO7816.SW_NO_ERROR) break;
- param = (short) (param << 1);
- }
- return sw;
- }
-
- public short setCustomInvalidCurve(short keyClass, short keyLength, byte key, short param, short corruptionType, byte[] buffer, short offset) {
- return setCustomInvalidCurve(EC_Consts.getCurve(keyClass, keyLength), key, param, corruptionType, buffer, offset);
- }
-
- public short setCustomInvalidCurve(byte curve, byte key, short param, short corruptionType, byte[] buffer, short offset) {
- short sw = setCustomCurve(curve, buffer, offset);
- if (sw != ISO7816.SW_NO_ERROR) return sw;
-
- //go through param bit by bit, and invalidate all selected params
- short paramMask = 0x01;
- while (paramMask <= EC_Consts.PARAMETER_K) {
- short masked = (short) (paramMask & param);
- if (masked != 0) {
- short length = EC_Consts.getCorruptCurveParameter(curve, masked, buffer, offset, corruptionType);
- sw = setParameter(key, masked, buffer, offset, length);
- if (sw != ISO7816.SW_NO_ERROR) return sw;
- }
- paramMask = (short) (paramMask << 1);
- }
- return sw;
- }
-
- public short setCustomAnomalousCurve(short keyClass, short keyLength, byte[] buffer, short offset) {
- return setCustomCurve(EC_Consts.getAnomalousCurve(keyClass, keyLength), buffer, offset);
- }
-
- public short setParameter(byte key, short param, byte[] data, short offset, short length) {
- short result = ISO7816.SW_NO_ERROR;
- try {
- switch (param) {
- case EC_Consts.PARAMETER_FP: {
- if ((key & KEY_PUBLIC) != 0) ecPublicKey.setFieldFP(data, offset, length);
- if ((key & KEY_PRIVATE) != 0) ecPrivateKey.setFieldFP(data, offset, length);
- break;
- }
- case EC_Consts.PARAMETER_F2M: {
- if (length == 2) {
- short i = Util.makeShort(data[offset], data[(short) (offset + 1)]);
- if ((key & KEY_PUBLIC) != 0) ecPublicKey.setFieldF2M(i);
- if ((key & KEY_PRIVATE) != 0) ecPrivateKey.setFieldF2M(i);
- } else if (length == 6) {
- short i1 = Util.makeShort(data[offset], data[(short) (offset + 1)]);
- short i2 = Util.makeShort(data[(short) (offset + 2)], data[(short) (offset + 3)]);
- short i3 = Util.makeShort(data[(short) (offset + 4)], data[(short) (offset + 5)]);
- if ((key & KEY_PUBLIC) != 0) ecPublicKey.setFieldF2M(i1, i2, i3);
- if ((key & KEY_PRIVATE) != 0) ecPrivateKey.setFieldF2M(i1, i2, i3);
- } else {
- result = ISO7816.SW_UNKNOWN;
- }
- break;
- }
- case EC_Consts.PARAMETER_A: {
- if ((key & KEY_PUBLIC) != 0) ecPublicKey.setA(data, offset, length);
- if ((key & KEY_PRIVATE) != 0) ecPrivateKey.setA(data, offset, length);
- break;
- }
- case EC_Consts.PARAMETER_B: {
- if ((key & KEY_PUBLIC) != 0) ecPublicKey.setB(data, offset, length);
- if ((key & KEY_PRIVATE) != 0) ecPrivateKey.setB(data, offset, length);
- break;
- }
- case EC_Consts.PARAMETER_G: {
- if ((key & KEY_PUBLIC) != 0) ecPublicKey.setG(data, offset, length);
- if ((key & KEY_PRIVATE) != 0) ecPrivateKey.setG(data, offset, length);
- break;
- }
- case EC_Consts.PARAMETER_R: {
- if ((key & KEY_PUBLIC) != 0) ecPublicKey.setR(data, offset, length);
- if ((key & KEY_PRIVATE) != 0) ecPrivateKey.setR(data, offset, length);
- break;
- }
- case EC_Consts.PARAMETER_K: {
- if (length != 2) {
- result = ISO7816.SW_UNKNOWN;
- } else {
- short k = Util.getShort(data, offset);
- if ((key & KEY_PUBLIC) != 0) ecPublicKey.setK(k);
- if ((key & KEY_PRIVATE) != 0) ecPrivateKey.setK(k);
- }
- break;
- }
- case EC_Consts.PARAMETER_S:
- if ((key & KEY_PRIVATE) != 0) ecPrivateKey.setS(data, offset, length);
- break;
- case EC_Consts.PARAMETER_W:
- if ((key & KEY_PUBLIC) != 0) ecPublicKey.setW(data, offset, length);
- break;
- default: {
- ISOException.throwIt(ISO7816.SW_FUNC_NOT_SUPPORTED);
- }
- }
- } catch (CryptoException ce) {
- result = ce.getReason();
- } catch (Exception e) {
- result = ISO7816.SW_UNKNOWN;
- }
- return result;
- }
-
- public short setExternalCurve(byte key, byte keyClass, byte[] buffer, short offset, short fieldLength, short aLength, short bLength, short gxLength, short gyLength, short rLength) {
- short sw = ISO7816.SW_NO_ERROR;
- if (keyClass == KeyPair.ALG_EC_FP) {
- sw = setParameter(key, EC_Consts.PARAMETER_FP, buffer, offset, fieldLength);
- } else if (keyClass == KeyPair.ALG_EC_F2M) {
- sw = setParameter(key, EC_Consts.PARAMETER_F2M, buffer, offset, fieldLength);
- }
- if (sw != ISO7816.SW_NO_ERROR) return sw;
-
- offset += fieldLength;
-
- //go through all params
- sw = setParameter(key, EC_Consts.PARAMETER_A, buffer, offset, aLength);
- if (sw != ISO7816.SW_NO_ERROR) return sw;
- offset += aLength;
- sw = setParameter(key, EC_Consts.PARAMETER_B, buffer, offset, bLength);
- if (sw != ISO7816.SW_NO_ERROR) return sw;
- offset += bLength;
-
- sw = setParameter(key, EC_Consts.PARAMETER_G, buffer, offset, (short) (gxLength + gyLength));
- if (sw != ISO7816.SW_NO_ERROR) return sw;
- offset += gxLength + gyLength;
-
-
- sw = setParameter(key, EC_Consts.PARAMETER_R, buffer, offset, aLength);
- if (sw != ISO7816.SW_NO_ERROR) return sw;
- offset += rLength;
-
- sw = setParameter(key, EC_Consts.PARAMETER_K, buffer, offset, (short) 2);
- return sw;
- }
-
- public short exportParameter(byte key, short param, byte[] outputBuffer, short outputOffset) {
- if (key == KEY_BOTH) {
- ISOException.throwIt(ISO7816.SW_FUNC_NOT_SUPPORTED);
- }
- short length = 0;
- try {
- switch (param) {
- case EC_Consts.PARAMETER_FP:
- case EC_Consts.PARAMETER_F2M:
- if ((key & KEY_PUBLIC) != 0) length = ecPublicKey.getField(outputBuffer, outputOffset);
- if ((key & KEY_PRIVATE) != 0) length = ecPrivateKey.getField(outputBuffer, outputOffset);
- break;
- case EC_Consts.PARAMETER_A:
- if ((key & KEY_PUBLIC) != 0) length = ecPublicKey.getA(outputBuffer, outputOffset);
- if ((key & KEY_PRIVATE) != 0) length = ecPrivateKey.getA(outputBuffer, outputOffset);
- break;
- case EC_Consts.PARAMETER_B:
- if ((key & KEY_PUBLIC) != 0) length = ecPublicKey.getB(outputBuffer, outputOffset);
- if ((key & KEY_PRIVATE) != 0) length = ecPrivateKey.getB(outputBuffer, outputOffset);
- break;
- case EC_Consts.PARAMETER_G:
- if ((key & KEY_PUBLIC) != 0) length = ecPublicKey.getG(outputBuffer, outputOffset);
- if ((key & KEY_PRIVATE) != 0) length = ecPrivateKey.getG(outputBuffer, outputOffset);
- break;
- case EC_Consts.PARAMETER_R:
- if ((key & KEY_PUBLIC) != 0) length = ecPublicKey.getR(outputBuffer, outputOffset);
- if ((key & KEY_PRIVATE) != 0) length = ecPrivateKey.getR(outputBuffer, outputOffset);
- break;
- case EC_Consts.PARAMETER_K:
- if ((key & KEY_PUBLIC) != 0) Util.setShort(outputBuffer, outputOffset, ecPublicKey.getK());
- if ((key & KEY_PRIVATE) != 0) Util.setShort(outputBuffer, outputOffset, ecPrivateKey.getK());
- length = 2;
- break;
- case EC_Consts.PARAMETER_S:
- if ((key & KEY_PRIVATE) != 0) length = ecPrivateKey.getS(outputBuffer, outputOffset);
- break;
- case EC_Consts.PARAMETER_W:
- if ((key & KEY_PUBLIC) != 0) length = ecPublicKey.getW(outputBuffer, outputOffset);
- default:
- ISOException.throwIt(ISO7816.SW_FUNC_NOT_SUPPORTED);
- }
- } catch (CryptoException ce) {
- ISOException.throwIt(ce.getReason());
- } catch (Exception e) {
- ISOException.throwIt(ISO7816.SW_UNKNOWN);
- }
- return length;
- }
-
- public ECPrivateKey getPrivateKey() {
- return ecPrivateKey;
- }
-
- public ECPublicKey getPublicKey() {
- return ecPublicKey;
- }
-
- public KeyPair getKeyPair() {
- return ecKeyPair;
- }
-}
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