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Copy pathBERTLV.java
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119 lines (101 loc) · 3.85 KB
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/*
* Copyright 2010 sasc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package sasc.iso7816;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import sasc.emv.EMVTags;
import sasc.util.Util;
/**
*
* @author sasc
*/
public class BERTLV {
private Tag tag;
private byte[] rawEncodedLengthBytes;
private byte[] valueBytes;
private int length;
/**
*
* @param tag
* @param length contains the number of value bytes (parsed from the rawEncodedLengthBytes)
* @param rawLengthBytes the raw encoded length bytes
* @param valueBytes
*/
public BERTLV(Tag tag, int length, byte[] rawEncodedLengthBytes, byte[] valueBytes) {
if (length != valueBytes.length) {
//Assert
throw new IllegalArgumentException("length != bytes.length");
}
this.tag = tag;
this.rawEncodedLengthBytes = rawEncodedLengthBytes;
this.valueBytes = valueBytes;
this.length = length;
}
public BERTLV(Tag tag, byte[] valueBytes) {
this.tag = tag;
this.rawEncodedLengthBytes = encodeLength(valueBytes.length);
this.valueBytes = valueBytes;
this.length = valueBytes.length;
}
public static byte[] encodeLength(int length){
//TODO
throw new UnsupportedOperationException("Not implemented yet");
}
public byte[] getTagBytes() {
return tag.getTagBytes();
}
public byte[] getRawEncodedLengthBytes() {
return rawEncodedLengthBytes;
}
public byte[] getValueBytes() {
return valueBytes;
}
public ByteArrayInputStream getValueStream() {
return new ByteArrayInputStream(valueBytes);
}
public byte[] toBERTLVByteArray() {
byte[] tagBytes = tag.getTagBytes();
ByteArrayOutputStream stream = new ByteArrayOutputStream(tagBytes.length+rawEncodedLengthBytes.length+valueBytes.length);
stream.write(tagBytes, 0, tagBytes.length);
stream.write(rawEncodedLengthBytes, 0, rawEncodedLengthBytes.length);
stream.write(valueBytes, 0, valueBytes.length);
return stream.toByteArray();
}
@Override
public String toString() {
return "BER-TLV[" + Util.byteArrayToHexString(getTagBytes()) + ", " + Util.int2Hex(length) + " (raw " + Util.byteArrayToHexString(rawEncodedLengthBytes) + ")" + ", " + Util.byteArrayToHexString(valueBytes) + "]";
}
public Tag getTag() {
return tag;
}
public int getLength() {
return length;
}
public static void main(String[] args) throws Exception {
//> 6f 23 -- File Control Information (FCI) Template
//> 84 0e -- Dedicated File (DF) Name
//> 32 50 41 59 2e 53 59 53 2e 44 44 46 30 31 (BINARY)
//> a5 11 -- File Control Information (FCI) Proprietary Template
//> bf 0c 0e -- File Control Information (FCI) Issuer Discretionary Data
//> 61 0c -- Application Template
//> 4f 07 -- Application Identifier (AID) - card
//> a0 00 00 00 04 10 10 (BINARY)
//> 87 01 -- Application Priority Indicator
//> 01 (BINARY)
// BERTLV fciTemplate = new BERTLV(EMVTags.FCI_TEMPLATE, )
//TODO create PPSE.toBytes(byte[] outBuf, short len)
}
}