106 lines
3.4 KiB
Java
106 lines
3.4 KiB
Java
package com.sunyard.sge.database;
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import com.sunyard.SydApiException;
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import com.sunyard.sge.bytes.BytesQueue;
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import java.nio.ByteBuffer;
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public class SydSM4Mac implements ISM4Mac {
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private final SydApi api;
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private final int iKeyIndex;
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private int iPkgNum = 1;
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private String pcProcData;
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private boolean is_finished;
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private String pcMac;
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private BytesQueue queue = new BytesQueue();
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public SydSM4Mac(SydApi api, int iKeyIndex) {
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this.api = api;
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this.iKeyIndex = iKeyIndex;
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this.pcProcData = null;
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}
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public void update(byte[] pcData) {
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if (null == pcData || 0 == pcData.length) {
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return;
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}
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int length = pcData.length;
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byte[] pcdataResult = pcData;
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if (is_finished) {
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throw new SydApiException(0x8007);
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}
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if (length > 4064) {
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throw new SydApiException(0x8006);
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}
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if (0 == queue.getLength()) {
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if (length < 16) {
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queue.push(pcData);
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}
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if (length % 16 != 0) {
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queue.push(pcData);
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byte[] pop = queue.pop(16, 0);
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pcdataResult =pop;
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}
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if (null == this.pcMac || "".equals(this.pcMac)) {
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LongDataReturn<String, String> stringStringLongDataReturn = api.SYD_SM4Mac_LongData(iKeyIndex, pcdataResult, iPkgNum, pcProcData);
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pcProcData = stringStringLongDataReturn.getProcData();
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iPkgNum = 2;
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} else {
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LongDataReturn<String, Boolean> stringBooleanLongDataReturn = api.SYD_SM4Mac_LongData(iKeyIndex, pcdataResult, iPkgNum, pcProcData, pcMac);
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pcProcData = stringBooleanLongDataReturn.getProcData();
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iPkgNum = 2;
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}
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} else {
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if (16 > (pcData.length + queue.getLength())) {
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queue.push(pcData);
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}
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queue.push(pcData);
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byte[] pop = queue.pop(16, 0);
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if (null == this.pcMac || "".equals(this.pcMac)) {
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LongDataReturn<String, String> stringStringLongDataReturn = api.SYD_SM4Mac_LongData(iKeyIndex, pop, iPkgNum, pcProcData);
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pcProcData = stringStringLongDataReturn.getProcData();
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iPkgNum = 2;
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} else {
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LongDataReturn<String, Boolean> stringBooleanLongDataReturn = api.SYD_SM4Mac_LongData(iKeyIndex, pop, iPkgNum, pcProcData, pcMac);
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pcProcData = stringBooleanLongDataReturn.getProcData();
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iPkgNum = 2;
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}
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}
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}
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public String disget() {
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if (is_finished) {
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throw new SydApiException(0x8007);
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}
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this.is_finished = true;
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if (1 == this.iPkgNum) {
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this.iPkgNum = 0;
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} else if (2 == this.iPkgNum) {
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this.iPkgNum = 3;
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}
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byte[] pop = queue.pop();
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LongDataReturn<String, String> stringStringLongDataReturn = api.SYD_SM4Mac_LongData(iKeyIndex, pop, iPkgNum, pcProcData);
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return stringStringLongDataReturn.getData();
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}
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public static byte[] bytebuffer2ByteArray(ByteBuffer buffer) {
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//重置 limit 和postion 值
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buffer.flip();
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//获取buffer中有效大小
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int len = buffer.limit() - buffer.position();
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byte[] bytes = new byte[len];
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for (int i = 0; i < bytes.length; i++) {
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bytes[i] = buffer.get();
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}
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return bytes;
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}
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}
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