1、优化sm4_cbc加解密方法

src/main/java/com/sunyard/SYMEnDeLongData.java

@@ -0,0 +1,194 @@
+package com.sunyard;
+
+
+import com.sunyard.proto.Util;
+import com.sunyard.trans.Alg;
+import com.sunyard.trans.FullMode;
+import com.sunyard.trans.RoundMode;
+import racal.sunyard.main.SydApi4j;
+
+public class SYMEnDeLongData {
+    private SydApi4j api;
+    private String key =  "";
+    private String keyValue = "";
+    private int keyType = 0;
+    private int inType = 0;
+    private int outType = 0;
+    private byte[] iv = new byte[0];
+    private Alg alg = null;
+    private RoundMode roundMode=null;
+    private FullMode fullMode=null;
+    private byte[] data=null;
+    //private byte[] data=new byte[0];
+    private boolean isFirst = true;
+    private boolean isFinal = false;
+    private boolean isEn = true;
+
+    public RoundMode getRoundMode() {
+        return roundMode;
+    }
+
+    public SYMEnDeLongData setRoundMode(RoundMode roundMode) {
+        this.roundMode = roundMode;
+        return this;
+    }
+
+    public FullMode getFullMode() {
+        return fullMode;
+    }
+
+    public SYMEnDeLongData setFullMode(FullMode fullMode) {
+        this.fullMode = fullMode;
+        return this;
+    }
+
+    public byte[] getIv() {
+        return iv;
+    }
+
+    public SYMEnDeLongData setIv(byte[] iv) {
+        this.iv = iv;
+        return this;
+    }
+
+    public Alg getAlg() {
+        return alg;
+    }
+
+    public void setAlg(Alg alg) {
+        this.alg = alg;
+    }
+
+    public int getKeyType() {
+        return keyType;
+    }
+
+    public SYMEnDeLongData setKeyType(int keyType) {
+        this.keyType = keyType;
+        return this;
+    }
+
+    public int getInType() {
+        return inType;
+    }
+
+    public SYMEnDeLongData setInType(int inType) {
+        this.inType = inType;
+        return this;
+    }
+
+    public int getOutType() {
+        return outType;
+    }
+
+    public SYMEnDeLongData setOutType(int outType) {
+        this.outType = outType;
+        return this;
+    }
+
+    public SYMEnDeLongData(SydApi4j api, Alg alg, RoundMode roundMode, FullMode fullMode) {
+        this.api = api;
+        this.alg=alg;
+        this.roundMode=roundMode;
+        this.fullMode=fullMode;
+    }
+
+
+    public String getKey() {
+        return key;
+    }
+
+    public SYMEnDeLongData setKey(String key) {
+        this.key = key;
+        return this;
+    }
+
+
+    public String getKeyValue() {
+        return keyValue;
+    }
+
+    public SYMEnDeLongData setKeyValue(String keyValue) {
+        this.keyValue = keyValue;
+        return this;
+    }
+
+    public SYMEnDeLongData en(){
+        this.isEn = true;
+        return this;
+    }
+
+    public SYMEnDeLongData de(){
+        this.isEn = false;
+        return this;
+    }
+
+
+    public byte[] update(byte[] data){
+        if ( isFinal ){
+            throw new SydApiException("此时已经不能再更新",370000);
+        }
+
+        if ( this.isEn ){
+           // this.data = this.api.SYMEncryptData(this.key,this.keyValue,this.alg,this.roundMode,this.fullMode,this.isFirst ? 1 : 2 , data);
+            System.out.println("块号block:"+(this.isFirst ? 1 : 2));
+            RetWrap en = this.api.SM4EncryptDataCBC(this.isEn, this.keyType, this.keyValue, this.inType, this.outType, data, this.iv, this.isFirst ? 1 : 2);
+            this.data = (byte[]) en.get("msg_all");
+            this.iv = (byte[]) en.get("iv");
+            System.out.println("下一IV长度:"+this.iv.length);
+            System.out.println("iv---"+ Util.bytes2HexString(this.iv));
+        } else {
+            RetWrap de = this.api.SM4EncryptDataCBC(this.isEn, this.keyType, this.keyValue, this.inType, this.outType, data, this.iv, this.isFirst ? 1 : 2);
+            this.data = (byte[]) de.get("msg_all");
+            this.iv = (byte[]) de.get("iv");
+        }
+
+        this.isFirst = false;
+        return this.data;
+    }
+
+
+    public byte[] calc(byte[] lastData ){
+        return calc( lastData, lastData.length );
+    }
+    public byte[] calc(byte[] lastData, int len ) {
+        if ( isFinal ){
+            throw new SydApiException("此时已经不能再计算",370000);
+        }
+
+        byte[] last = null;
+
+        if( len < 0 ){
+            len = 0;
+        }
+
+        if ( 0 == lastData.length ){
+            last = new byte[0];
+        } else if ( lastData.length == len ){
+            last = lastData;
+        } else {
+            last = new byte[len];
+            System.arraycopy( lastData, 0, last, 0, len );
+        }
+
+        this.isFinal = true;
+
+        int block = 3;
+        if ( null == this.data ){
+            block = 0;
+        }
+
+        if (last.length>0){
+
+            if ( this.isEn ){
+                System.out.println("block:"+block);
+                this.data = (byte[]) this.api.SM4EncryptDataCBC(this.isEn, this.keyType, this.keyValue, this.inType, this.outType, last, this.iv, block).get("msg_all");
+            } else {
+                System.out.println("block:"+block);
+                this.data = (byte[]) this.api.SM4EncryptDataCBC(this.isEn, this.keyType, this.keyValue, this.inType, this.outType, last, this.iv, block).get("msg_all");
+            }
+        }
+
+        return this.data;
+    }
+}