Java TlvUtil类代码示例

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Method used to get the number of pin try left
 *
 * @return the number of pin try left
 * @throws CommunicationException
 */
protected int getLeftPinTry() throws CommunicationException {
    int ret = UNKNOW;
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("Get Left PIN try");
    }
    // Left PIN try command
    byte[] data = provider.transceive(new CommandApdu(CommandEnum.GET_DATA, 0x9F, 0x17, 0).toBytes());
    if (ResponseUtils.isSucceed(data)) {
        // Extract PIN try counter
        byte[] val = TlvUtil.getValue(data, EmvTags.PIN_TRY_COUNTER);
        if (val != null) {
            ret = BytesUtils.byteArrayToInt(val);
        }
    }
    return ret;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Method used to parse FCI Proprietary Template
 *
 * @param pData data to parse
 * @return
 * @throws CommunicationException
 */
protected byte[] parseFCIProprietaryTemplate(final byte[] pData) throws CommunicationException {
    // Get SFI
    byte[] data = TlvUtil.getValue(pData, EmvTags.SFI);

    // Check SFI
    if (data != null) {
        int sfi = BytesUtils.byteArrayToInt(data);
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("SFI found:" + sfi);
        }
        data = provider.transceive(new CommandApdu(CommandEnum.READ_RECORD, sfi, sfi << 3 | 4, 0).toBytes());
        // If LE is not correct
        if (ResponseUtils.isEquals(data, SwEnum.SW_6C)) {
            data = provider.transceive(new CommandApdu(CommandEnum.READ_RECORD, sfi, sfi << 3 | 4, data[data.length - 1]).toBytes());
        }
        return data;
    }
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("(FCI) Issuer Discretionary Data is already present");
    }
    return pData;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Read public card data from parameter AID
 *
 * @param pAid              card AID in bytes
 * @param pApplicationLabel application scheme (Application label)
 * @return true if succeed false otherwise
 */
protected boolean extractPublicData(final byte[] pAid, final String pApplicationLabel) throws CommunicationException {
    boolean ret = false;
    // Select AID
    byte[] data = selectAID(pAid);
    // check response
    if (ResponseUtils.isSucceed(data)) {
        // Parse select response
        ret = parse(data, provider);
        if (ret) {
            // Get AID
            String aid = BytesUtils.bytesToStringNoSpace(TlvUtil.getValue(data, EmvTags.DEDICATED_FILE_NAME));
            if (LOGGER.isDebugEnabled()) {
                LOGGER.debug("Application label:" + pApplicationLabel + " with Aid:" + aid);
            }
            card.setAid(aid);
            card.setType(findCardScheme(aid, card.getCardNumber()));
            card.setApplicationLabel(pApplicationLabel);
            card.setLeftPinTry(getLeftPinTry());
        }
    }
    return ret;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Method used to get the number of pin try left
 *
 * @return the number of pin try left
 * @throws CommunicationException
 */
protected int getLeftPinTry() throws CommunicationException {
	int ret = UNKNOW;
	if (LOGGER.isDebugEnabled()) {
		LOGGER.debug("Get Left PIN try");
	}
	// Left PIN try command
	byte[] data = provider.transceive(new CommandApdu(CommandEnum.GET_DATA, 0x9F, 0x17, 0).toBytes());
	if (ResponseUtils.isSucceed(data)) {
		// Extract PIN try counter
		byte[] val = TlvUtil.getValue(data, EmvTags.PIN_TRY_COUNTER);
		if (val != null) {
			ret = BytesUtils.byteArrayToInt(val);
		}
	}
	return ret;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Method used to parse FCI Proprietary Template
 *
 * @param pData
 *            data to parse
 * @return
 * @throws CommunicationException
 */
protected byte[] parseFCIProprietaryTemplate(final byte[] pData) throws CommunicationException {
	// Get SFI
	byte[] data = TlvUtil.getValue(pData, EmvTags.SFI);

	// Check SFI
	if (data != null) {
		int sfi = BytesUtils.byteArrayToInt(data);
		if (LOGGER.isDebugEnabled()) {
			LOGGER.debug("SFI found:" + sfi);
		}
		data = provider.transceive(new CommandApdu(CommandEnum.READ_RECORD, sfi, sfi << 3 | 4, 0).toBytes());
		// If LE is not correct
		if (ResponseUtils.isEquals(data, SwEnum.SW_6C)) {
			data = provider.transceive(new CommandApdu(CommandEnum.READ_RECORD, sfi, sfi << 3 | 4, data[data.length - 1]).toBytes());
		}
		return data;
	}
	if (LOGGER.isDebugEnabled()) {
		LOGGER.debug("(FCI) Issuer Discretionary Data is already present");
	}
	return pData;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Read public card data from parameter AID
 *
 * @param pAid
 *            card AID in bytes
 * @param pApplicationLabel
 *            application scheme (Application label)
 * @return true if succeed false otherwise
 */
protected boolean extractPublicData(final byte[] pAid, final String pApplicationLabel) throws CommunicationException {
	boolean ret = false;
	// Select AID
	byte[] data = selectAID(pAid);
	// check response
	if (ResponseUtils.isSucceed(data)) {
		// Parse select response
		ret = parse(data, provider);
		if (ret) {
			// Get AID
			String aid = BytesUtils.bytesToStringNoSpace(TlvUtil.getValue(data, EmvTags.DEDICATED_FILE_NAME));
			if (LOGGER.isDebugEnabled()) {
				LOGGER.debug("Application label:" + pApplicationLabel + " with Aid:" + aid);
			}
			card.setAid(aid);
			card.setType(findCardScheme(aid, card.getCardNumber()));
			card.setApplicationLabel(pApplicationLabel);
			card.setLeftPinTry(getLeftPinTry());
		}
	}
	return ret;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Method used to create GPO command and execute it
 *
 * @param pPdol
 *            PDOL data
 * @param pProvider
 *            provider
 * @return return data
 */
protected byte[] getGetProcessingOptions(final byte[] pPdol, final IProvider pProvider) throws CommunicationException {
	// List Tag and length from PDOL
	List<TagAndLength> list = TlvUtil.parseTagAndLength(pPdol);
	ByteArrayOutputStream out = new ByteArrayOutputStream();
	try {
		out.write(EmvTags.COMMAND_TEMPLATE.getTagBytes()); // COMMAND
		// TEMPLATE
		out.write(TlvUtil.getLength(list)); // ADD total length
		if (list != null) {
			for (TagAndLength tl : list) {
				out.write(EmvTerminal.constructValue(tl));
			}
		}
	} catch (IOException ioe) {
		LOGGER.error("Construct GPO Command:" + ioe.getMessage(), ioe);
	}
	return pProvider.transceive(new CommandApdu(CommandEnum.GPO, out.toByteArray(), 0).toBytes());
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
@Test
public void testCurrency() {
	SimpleDateFormat time = new SimpleDateFormat("HHmmss");
	List<TagAndLength> list = TlvUtil.parseTagAndLength(BytesUtils
			.fromString("9F 27 01 9F 02 06 5F 2A 02 9A 03 9F 36 02 9F 52 06 DF 3E 01 9F 21 03 9F 7C 14"));

	EmvTransactionRecord record = new EmvTransactionRecord();
	record.parse(
			BytesUtils
					.fromString("40 00 00 00 00 26 30 09 78 14 09 20 00 44 60 10 03 24 00 00 00 21 43 57 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90 00"),
			list);
	Assertions.assertThat(record.getAmount()).isEqualTo(2630);
	Assertions.assertThat(record.getCyptogramData()).isEqualTo("40");
	Assertions.assertThat(record.getTransactionType()).isEqualTo(null);
	Assertions.assertThat(record.getCurrency()).isEqualTo(CurrencyEnum.EUR);
	Assertions.assertThat(record.getTerminalCountry()).isEqualTo(null);
	Assertions.assertThat(record.getDate()).isNotNull();
	Assertions.assertThat(time.format(record.getTime())).isEqualTo("214357");
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
@Override
public byte[] transceive(final byte[] pCommand) {
	String response = null;
	LOGGER.debug("send: " + BytesUtils.bytesToString(pCommand));
	switch (step++) {

	case 0:
		response = "6F 57 84 0E 32 50 41 59 2E 53 59 53 2E 44 44 46 30 31 A5 45 BF 0C 42 61 10 4F 07 A0 00 00 00 42 10 10 50 02 43 42 87 01 01 9F 2A 08 03 00 00 00 00 00 00 00 61 18 4F 07 A0 00 00 00 03 10 10 50 0A 56 49 53 41 20 44 45 42 49 54 87 01 02 9F 2A 08 03 00 00 00 00 00 00 00 90 00";
		break;
	default:
		response = "69 85";
	}

	LOGGER.debug("resp: " + response);
	byte[] ret = BytesUtils.fromString(response);
	try {
		LOGGER.debug(TlvUtil.prettyPrintAPDUResponse(ret));
	} catch (Exception e) {
	}
	return ret;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Method used to extract application label
 *
 * @return decoded application label or null
 */
protected String extractApplicationLabel(final byte[] pData) {
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("Extract Application label");
    }
    String label = null;
    byte[] labelByte = TlvUtil.getValue(pData, EmvTags.APPLICATION_LABEL);
    if (labelByte != null) {
        label = new String(labelByte);
    }
    return label;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Method used to get the aid list, if the Kernel Identifier is defined, <br/>
 * this value need to be appended to the ADF Name in the data field of <br/>
 * the SELECT command.
 *
 * @param pData FCI proprietary template data
 * @return the Aid to select
 */
protected List<byte[]> getAids(final byte[] pData) {
    List<byte[]> ret = new ArrayList<byte[]>();
    List<TLV> listTlv = TlvUtil.getlistTLV(pData, EmvTags.AID_CARD, EmvTags.KERNEL_IDENTIFIER);
    for (TLV tlv : listTlv) {
        if (tlv.getTag() == EmvTags.KERNEL_IDENTIFIER && ret.size() != 0) {
            ret.add(ArrayUtils.addAll(ret.get(ret.size() - 1), tlv.getValueBytes()));
        } else {
            ret.add(tlv.getValueBytes());
        }
    }
    return ret;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Method used to parse EMV card
 */
protected boolean parse(final byte[] pSelectResponse, final IProvider pProvider) throws CommunicationException {
    boolean ret = false;
    // Get TLV log entry
    byte[] logEntry = getLogEntry(pSelectResponse);
    // Get PDOL
    byte[] pdol = TlvUtil.getValue(pSelectResponse, EmvTags.PDOL);
    // Send GPO Command
    byte[] gpo = getGetProcessingOptions(pdol, pProvider);

    // Check empty PDOL
    if (!ResponseUtils.isSucceed(gpo)) {
        gpo = getGetProcessingOptions(null, pProvider);
        // Check response
        if (!ResponseUtils.isSucceed(gpo)) {
            return false;
        }
    }

    // Extract commons card data (number, expire date, ...)
    if (extractCommonsCardData(gpo)) {

        // Extract log entry
        card.setListTransactions(extractLogEntry(logEntry));
        ret = true;
    }

    return ret;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Method used to get log format
 *
 * @return list of tag and length for the log format
 * @throws CommunicationException
 */
protected List<TagAndLength> getLogFormat() throws CommunicationException {
    List<TagAndLength> ret = new ArrayList<TagAndLength>();
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("GET log format");
    }
    // Get log format
    byte[] data = provider.transceive(new CommandApdu(CommandEnum.GET_DATA, 0x9F, 0x4F, 0).toBytes());
    if (ResponseUtils.isSucceed(data)) {
        ret = TlvUtil.parseTagAndLength(TlvUtil.getValue(data, EmvTags.LOG_FORMAT));
    }
    return ret;
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
 * Extract card holder lastname and firstname
 *
 * @param pData card data
 */
protected void extractCardHolderName(final byte[] pData) {
    // Extract Card Holder name (if exist)
    byte[] cardHolderByte = TlvUtil.getValue(pData, EmvTags.CARDHOLDER_NAME);
    if (cardHolderByte != null) {
        String[] name = StringUtils.split(new String(cardHolderByte).trim(), CARD_HOLDER_NAME_SEPARATOR);
        if (name != null && name.length == 2) {
            card.setHolderFirstname(StringUtils.trimToNull(name[0]));
            card.setHolderLastname(StringUtils.trimToNull(name[1]));
        }
    }
}
 

import com.github.devnied.emvnfccard.utils.TlvUtil; //导入依赖的package包/类
/**
     * Method used to create GPO command and execute it
     *
     * @param pPdol     PDOL data
     * @param pProvider provider
     * @return return data
     */
    protected byte[] getGetProcessingOptions(final byte[] pPdol, final IProvider pProvider) throws CommunicationException {
        // List Tag and length from PDOL  各一个，取两个

//      pDol  9F 66 04 9F 02 06 9F 03 06 9F 1A 02 95 05 5F 2A 02 9A 03 9C 01 9F 37 04 90 00
//      list = {[email protected]}  size = 9
//		0 = {[email protected]} "Tag[9F 66] Name=Terminal Transaction Qualifiers, TagType=PRIMITIVE, ValueType=BINARY, Class=CONTEXT_SPECIFIC length: 4"
//		1 = {[email protected]} "Tag[9F 02] Name=Amount, Authorised (Numeric), TagType=PRIMITIVE, ValueType=NUMERIC, Class=CONTEXT_SPECIFIC length: 6"
//		2 = {[email protected]} "Tag[9F 03] Name=Amount, Other (Numeric), TagType=PRIMITIVE, ValueType=NUMERIC, Class=CONTEXT_SPECIFIC length: 6"
//		3 = {[email protected]} "Tag[9F 1A] Name=Terminal Country Code, TagType=PRIMITIVE, ValueType=TEXT, Class=CONTEXT_SPECIFIC length: 2"
//		4 = {[email protected]} "Tag[95] Name=Terminal Verification Results (TVR), TagType=PRIMITIVE, ValueType=BINARY, Class=CONTEXT_SPECIFIC length: 5"
//		5 = {[email protected]} "Tag[5F 2A] Name=Transaction Currency Code, TagType=PRIMITIVE, ValueType=TEXT, Class=APPLICATION length: 2"
//		6 = {[email protected]} "Tag[9A] Name=Transaction Date, TagType=PRIMITIVE, ValueType=NUMERIC, Class=CONTEXT_SPECIFIC length: 3"
//		7 = {[email protected]} "Tag[9C] Name=Transaction Type, TagType=PRIMITIVE, ValueType=NUMERIC, Class=CONTEXT_SPECIFIC length: 1"
//		8 = {[email protected]} "Tag[9F 37] Name=Unpredictable Number, TagType=PRIMITIVE, ValueType=BINARY, Class=CONTEXT_SPECIFIC length: 4"
        List<TagAndLength> list = TlvUtil.parseTagAndLength(pPdol);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        try {
            out.write(EmvTags.COMMAND_TEMPLATE.getTagBytes()); // COMMAND
            // TEMPLATE
            out.write(TlvUtil.getLength(list)); // ADD total length
            if (list != null) {
                for (TagAndLength tl : list) {
                    out.write(EmvTerminal.constructValue(tl));
                }
            }
        } catch (IOException ioe) {
            LOGGER.error("Construct GPO Command:" + ioe.getMessage(), ioe);
        }
        byte[] gpoCommand = new CommandApdu(CommandEnum.GPO, out.toByteArray(), 0).toBytes();
        System.out.println(BytesUtils.bytesToString(gpoCommand));
        return pProvider.transceive(gpoCommand);
    }