javacard.framework.CardRuntimeException Java Examples

/**
 * @param keyClass
 * @param keyLength
 * @return
 */
public KeyPair allocatePair(byte keyClass, short keyLength) {
    sw = ISO7816.SW_NO_ERROR;
    KeyPair ecKeyPair = null;
    try {
        if (!dryRun) {
            ecKeyPair = new KeyPair(keyClass, keyLength);

            if (ecKeyPair.getPublic() == null || ecKeyPair.getPrivate() == null) {
                try {
                    ecKeyPair.genKeyPair();
                } catch (Exception ignored) {
                }
            }
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return ecKeyPair;
}
 

/**
 * @param keyClass
 * @param keyLength
 * @return
 */
public KeyPair constructPair(byte keyClass, short keyLength) {
    sw = ISO7816.SW_NO_ERROR;
    KeyPair ecKeyPair = null;
    byte privKeyType;
    byte pubKeyType;
    if (keyClass == KeyPair.ALG_EC_FP) {
        privKeyType = KeyBuilder.TYPE_EC_FP_PRIVATE;
        pubKeyType = KeyBuilder.TYPE_EC_FP_PUBLIC;
    } else {
        privKeyType = KeyBuilder.TYPE_EC_F2M_PRIVATE;
        pubKeyType = KeyBuilder.TYPE_EC_F2M_PUBLIC;
    }
    try {
        if (!dryRun) {
            ECPrivateKey privateKey = (ECPrivateKey) KeyBuilder.buildKey(privKeyType, keyLength, false);
            ECPublicKey publicKey = (ECPublicKey) KeyBuilder.buildKey(pubKeyType, keyLength, false);

            ecKeyPair = new KeyPair(publicKey, privateKey);
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return ecKeyPair;
}
 

/**
 * Copies this KeyPairs curve parameters to another ECKeyGenerator.
 *
 * @param from   keyPair to copy from
 * @param to     keyPair to copy to
 * @param params parameters to copy
 * @param buffer buffer to use for copying
 * @param offset offset to use in buffer
 * @return sw
 */
public short copyCurve(KeyPair from, KeyPair to, short params, byte[] buffer, short offset) {
    try {
        sw = AppletUtil.keypairCheck(from);
        sw = AppletUtil.keypairCheck(to);

        short param = EC_Consts.PARAMETER_FP;
        while (param <= EC_Consts.PARAMETER_K) {
            short masked = (short) (param & params);
            if (masked != 0) {
                short paramLength = exportParameter(from, EC_Consts.KEY_PUBLIC, masked, buffer, offset);
                setParameter(to, EC_Consts.KEY_BOTH, masked, buffer, offset, paramLength);
            }
            param = (short) (param << 1);
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return sw;
}
 

/**
 * Tests ECDH secret generation with keys from given {@code privatePair} and {@code publicPair}.
 * Uses {@code pubkeyBuffer} at {@code pubkeyOffset} for computations.
 * Output should equal with ECDHC output.
 *
 * @param privatePair    KeyPair from which the private key is used
 * @param publicPair     KeyPair from which the public key is used
 * @param pubkeyBuffer   buffer to be used for the public key
 * @param pubkeyOffset   offset into pubkeyBuffer that can be used for the public key
 * @param outputBuffer   buffer to be used for the secret output
 * @param outputOffset   offset into the outputBuffer
 * @param transformation (EC_Consts.TRANSFORMATION_* | ...)
 * @return derived secret length
 **/
public short testKA(KeyPair privatePair, KeyPair publicPair, byte[] pubkeyBuffer, short pubkeyOffset, byte[] outputBuffer, short outputOffset, short transformation) {
    short length = 0;
    try {
        sw = AppletUtil.kaCheck(ecKeyAgreement);
        sw = AppletUtil.keypairCheck(privatePair);
        sw = AppletUtil.keypairCheck(publicPair);
        if (!dryRun) {
            short pubkeyLength = ((ECPublicKey) publicPair.getPublic()).getW(pubkeyBuffer, pubkeyOffset);
            ecKeyAgreement.init(privatePair.getPrivate());

            pubkeyLength = EC_Consts.transformParameter(transformation, pubkeyBuffer, pubkeyOffset, pubkeyLength);
            length = ecKeyAgreement.generateSecret(pubkeyBuffer, pubkeyOffset, pubkeyLength, outputBuffer, outputOffset);
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return length;
}
 

/**
 * @param privatePair
 * @param pubkey
 * @param pubkeyOffset
 * @param pubkeyLength
 * @param outpuBuffer
 * @param outputOffset
 * @param transformation
 * @return
 */
public short testKA_direct(KeyPair privatePair, byte[] pubkey, short pubkeyOffset, short pubkeyLength, byte[] outpuBuffer, short outputOffset, short transformation) {
    short length = 0;
    try {
        sw = AppletUtil.kaCheck(ecKeyAgreement);
        sw = AppletUtil.keypairCheck(privatePair);

        if (!dryRun) {
            ecKeyAgreement.init(privatePair.getPrivate());
            pubkeyLength = EC_Consts.transformParameter(transformation, pubkey, pubkeyOffset, pubkeyLength);
            length = ecKeyAgreement.generateSecret(pubkey, pubkeyOffset, pubkeyLength, outpuBuffer, outputOffset);
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return length;
}
 

/**
 * Uses {@code signKey} to sign data from {@code inputBuffer} at {@code inputOffset} with {@code inputOffset}.
 * Then checks for correct signature length.
 * Then tries verifying the data with {@code verifyKey}.
 *
 * @param signKey     key to use for signing
 * @param verifyKey   key to use for verifying the signature
 * @param inputBuffer buffer to sign data from
 * @param inputOffset offset into inputBuffer to sign data from
 * @param inputLength length of data to sign
 * @param sigBuffer   buffer to output signature to
 * @param sigOffset   offset into sigBuffer to output to
 * @return signature length
 */
public short testECDSA(ECPrivateKey signKey, ECPublicKey verifyKey, byte[] inputBuffer, short inputOffset, short inputLength, byte[] sigBuffer, short sigOffset) {
    short length = 0;
    try {
        sw = AppletUtil.signCheck(ecdsaSignature);

        if (!dryRun) {
            ecdsaSignature.init(signKey, Signature.MODE_SIGN);
            length = ecdsaSignature.sign(inputBuffer, inputOffset, inputLength, sigBuffer, sigOffset);

            ecdsaSignature.init(verifyKey, Signature.MODE_VERIFY);
            if (!ecdsaSignature.verify(inputBuffer, inputOffset, inputLength, sigBuffer, sigOffset, length)) {
                sw = AppletBase.SW_SIG_VERIFY_FAIL;
            }
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return length;
}
 

/**
 * @param verifyKey
 * @param inputBuffer
 * @param inputOffset
 * @param inputLength
 * @param sigBuffer
 * @param sigOffset
 * @param sigLength
 * @return
 */
public short testECDSA_verify(ECPublicKey verifyKey, byte[] inputBuffer, short inputOffset, short inputLength, byte[] sigBuffer, short sigOffset, short sigLength) {
    short length = 0;
    try {
        sw = AppletUtil.signCheck(ecdsaSignature);

        if (!dryRun) {
            ecdsaSignature.init(verifyKey, Signature.MODE_VERIFY);
            if (!ecdsaSignature.verify(inputBuffer, inputOffset, inputLength, sigBuffer, sigOffset, sigLength)) {
                sw = AppletBase.SW_SIG_VERIFY_FAIL;
            }
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return length;
}
 

/**
 * @param keypair
 * @param key
 * @return
 */
public short clearPair(KeyPair keypair, byte key) {
    try {
        sw = AppletUtil.keypairCheck(keypair);
        if (!dryRun) {
            if ((key & EC_Consts.KEY_PUBLIC) != 0) keypair.getPublic().clearKey();
            if ((key & EC_Consts.KEY_PRIVATE) != 0) keypair.getPrivate().clearKey();
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return sw;
}
 

/**
 * @param keypair
 * @return
 */
public short generatePair(KeyPair keypair) {
    try {
        sw = AppletUtil.keypairCheck(keypair);
        if (!dryRun) {
            keypair.genKeyPair();
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return sw;
}
 

public short allocateKA(byte algorithm) {
    sw = ISO7816.SW_NO_ERROR;
    try {
        if (!dryRun) {
            ecKeyAgreement = KeyAgreement.getInstance(algorithm, false);
            kaType = algorithm;
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return sw;
}
 

public short allocateSig(byte algorithm) {
    sw = ISO7816.SW_NO_ERROR;
    try {
        if (!dryRun) {
            ecdsaSignature = Signature.getInstance(algorithm, false);
            sigType = algorithm;
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return sw;
}
 

/**
 * @param signKey
 * @param inputBuffer
 * @param inputOffset
 * @param inputLength
 * @param sigBuffer
 * @param sigOffset
 * @return
 */
public short testECDSA_sign(ECPrivateKey signKey, byte[] inputBuffer, short inputOffset, short inputLength, byte[] sigBuffer, short sigOffset) {
    short length = 0;
    try {
        sw = AppletUtil.signCheck(ecdsaSignature);

        if (!dryRun) {
            ecdsaSignature.init(signKey, Signature.MODE_SIGN);
            length = ecdsaSignature.sign(inputBuffer, inputOffset, inputLength, sigBuffer, sigOffset);
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return length;
}
 

/**
 * Exports a selected parameter from a given keyPairs key.
 *
 * @param keypair      keypair to export from
 * @param key          key to export from (KEY_PUBLIC || KEY_PRIVATE)
 * @param param        parameter to export (EC_Consts.PARAMETER_* || ...)
 * @param outputBuffer buffer to write to
 * @param outputOffset offset to start writing in buffer
 * @return length of data written
 */
public short exportParameter(KeyPair keypair, byte key, short param, byte[] outputBuffer, short outputOffset) {
    short length = 0;
    try {
        sw = AppletUtil.keypairCheck(keypair);

        ECPublicKey ecPublicKey = null;
        ECPrivateKey ecPrivateKey = null;
        if (!dryRun) {
            ecPublicKey = (ECPublicKey) keypair.getPublic();
            ecPrivateKey = (ECPrivateKey) keypair.getPrivate();
        }

        switch (param) {
            case EC_Consts.PARAMETER_FP:
                if (!dryRun) {
                    if ((key & EC_Consts.KEY_PUBLIC) != 0)
                        length = ecPublicKey.getField(outputBuffer, outputOffset);
                    if ((key & EC_Consts.KEY_PRIVATE) != 0)
                        length = ecPrivateKey.getField(outputBuffer, outputOffset);
                }
                break;
            case EC_Consts.PARAMETER_F2M:
                if ((key & EC_Consts.KEY_PUBLIC) != 0 && !dryRun) {
                    Util.setShort(outputBuffer, outputOffset, ecPublicKey.getSize());
                    length = 2;
                    length += ecPublicKey.getField(outputBuffer, (short) (outputOffset + 2));
                }
                if ((key & EC_Consts.KEY_PRIVATE) != 0 && !dryRun) {
                    Util.setShort(outputBuffer, outputOffset, ecPrivateKey.getSize());
                    length = 2;
                    length += ecPrivateKey.getField(outputBuffer, (short) (outputOffset + 2));
                }
                break;
            case EC_Consts.PARAMETER_A:
                if (!dryRun) {
                    if ((key & EC_Consts.KEY_PUBLIC) != 0) length = ecPublicKey.getA(outputBuffer, outputOffset);
                    if ((key & EC_Consts.KEY_PRIVATE) != 0) length = ecPrivateKey.getA(outputBuffer, outputOffset);
                }
                break;
            case EC_Consts.PARAMETER_B:
                if (!dryRun) {
                    if ((key & EC_Consts.KEY_PUBLIC) != 0) length = ecPublicKey.getB(outputBuffer, outputOffset);
                    if ((key & EC_Consts.KEY_PRIVATE) != 0) length = ecPrivateKey.getB(outputBuffer, outputOffset);
                }
                break;
            case EC_Consts.PARAMETER_G:
                if (!dryRun) {
                    if ((key & EC_Consts.KEY_PUBLIC) != 0) length = ecPublicKey.getG(outputBuffer, outputOffset);
                    if ((key & EC_Consts.KEY_PRIVATE) != 0) length = ecPrivateKey.getG(outputBuffer, outputOffset);
                }
                break;
            case EC_Consts.PARAMETER_R:
                if (!dryRun) {
                    if ((key & EC_Consts.KEY_PUBLIC) != 0) length = ecPublicKey.getR(outputBuffer, outputOffset);
                    if ((key & EC_Consts.KEY_PRIVATE) != 0) length = ecPrivateKey.getR(outputBuffer, outputOffset);
                }
                break;
            case EC_Consts.PARAMETER_K:
                if (!dryRun) {
                    length = 2;
                    if ((key & EC_Consts.KEY_PUBLIC) != 0)
                        Util.setShort(outputBuffer, outputOffset, ecPublicKey.getK());
                    if ((key & EC_Consts.KEY_PRIVATE) != 0)
                        Util.setShort(outputBuffer, outputOffset, ecPrivateKey.getK());
                }
                break;
            case EC_Consts.PARAMETER_W:
                if ((key & EC_Consts.KEY_PUBLIC) != 0 && !dryRun)
                    length = ecPublicKey.getW(outputBuffer, outputOffset);
                break;
            case EC_Consts.PARAMETER_S:
                if ((key & EC_Consts.KEY_PRIVATE) != 0 && !dryRun)
                    length = ecPrivateKey.getS(outputBuffer, outputOffset);
                break;
            default:
                ISOException.throwIt(ISO7816.SW_FUNC_NOT_SUPPORTED);
        }
    } catch (CardRuntimeException ce) {
        sw = ce.getReason();
    }
    return length;
}