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|
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
public class IbsEncrypt
{
private String Msgid="";
private String Nucar="";
private String Court="";
private String Finval="";
private String Cvx2="";
private String Cmc7="";
private String key1="11111111111111111111111111111111";
private String key2="22222222222222222222222222222222";
private String key3="33333333333333333333333333333333";
/**
* @param msgid
* @param nucar
* @param court
* @param finval
* @param cvx2
* @param cmc7
*/
public IbsEncrypt(String msgid, String nucar, String court, String finval, String cvx2, String cmc7) {
Msgid = msgid;
Nucar = nucar;
Court = court;
Finval = finval;
Cvx2 = cvx2;
Cmc7 = cmc7;
}
/**
* @return the cmc7
*/
public String getCmc7() {
return Cmc7;
}
/**
* @param cmc7 the cmc7 to set
*/
public void setCmc7(String cmc7) {
Cmc7 = cmc7;
}
/**
* @return the court
*/
public String getCourt() {
return Court;
}
/**
* @param court the court to set
*/
public void setCourt(String court) {
Court = court;
}
/**
* @return the cvx2
*/
public String getCvx2() {
return Cvx2;
}
/**
* @param cvx2 the cvx2 to set
*/
public void setCvx2(String cvx2) {
Cvx2 = cvx2;
}
/**
* @return the finval
*/
public String getFinval() {
return Finval;
}
/**
* @param finval the finval to set
*/
public void setFinval(String finval) {
Finval = finval;
}
/**
* @return the msgid
*/
public String getMsgid() {
return Msgid;
}
/**
* @param msgid the msgid to set
*/
public void setMsgid(String msgid) {
Msgid = msgid;
}
/**
* @return the nucar
*/
public String getNucar() {
return Nucar;
}
/**
* @param nucar the nucar to set
*/
public void setNucar(String nucar) {
Nucar = nucar;
}
/**
* @return the key1
*/
public String getKey1() {
return key1;
}
/**
* @param key1 the key1 to set
*/
public void setKey1(String key1) {
this.key1 = key1;
}
/**
* @return the key2
*/
public String getKey2() {
return key2;
}
/**
* @param key2 the key2 to set
*/
public void setKey2(String key2) {
this.key2 = key2;
}
/**
* @return the key3
*/
public String getKey3() {
return key3;
}
/**
* @param key3 the key3 to set
*/
public void setKey3(String key3) {
this.key3 = key3;
}
public String getIbsClair()
{
String ibsClair="<Msgid>"+Msgid+"</Msgid>";
ibsClair+="<Nucar>"+Nucar+"</Nucar>";
ibsClair+="<Court>"+Court+"</Court>";
ibsClair+="<Finval>"+Finval+"</Finval>";
ibsClair+="<Cvx2>"+Cvx2+"</Cvx2>";
ibsClair+="<Cmc7>"+Cmc7+"</Cmc7>";
return ibsClair;
}
public byte[] getIbsCrypt(int nKey)
{
byte[] rawKey;
switch(nKey)
{
case 1:
System.out.println("clé "+key1);
rawKey=key1.getBytes();
break;
case 2:
System.out.println("clé "+key2);
rawKey=key2.getBytes();
break;
case 3:
System.out.println("clé "+key3);
rawKey=key3.getBytes();
break;
case 0:
default:
System.out.println("clair");
return getIbsClair().getBytes();
}
try{
SecretKey skeySpec = new SecretKeySpec(rawKey, "DESebe");
System.out.println("DESebe/CBC/NoPadding");
Cipher c = Cipher.getInstance("DESebe/CBC/PKCS5Padding", "SunJCE");
System.out.println("ENCRYPT_MODE");
c.init(Cipher.ENCRYPT_MODE, skeySpec);
return c.doFinal(getIbsClair().getBytes());
}
catch(Exception e){/*On ne fait rien, Eception théroriquement impossible*/}
return getIbsClair().getBytes();
}
public byte[] decryptIbs(byte[] cryptMsg,int nKey)
{
byte[] rawKey;
switch(nKey)
{
case 1:
rawKey=key1.getBytes();
break;
case 2:
rawKey=key2.getBytes();
break;
case 3:
rawKey=key3.getBytes();
break;
case 0:
default:
return getIbsClair().getBytes();
}
try{
SecretKey skeySpec = new SecretKeySpec(rawKey, "DESebe");
Cipher c = Cipher.getInstance("DESebe/CBC/PKCS5Padding", "SunJCE");
c.init(Cipher.DECRYPT_MODE, skeySpec);
return c.doFinal(cryptMsg);
}
catch(Exception e){/*On ne fait rien, Eception théroriquement impossible*/}
return getIbsClair().getBytes();
}
public static void main (String[] args)
{
IbsEncrypt ibs = new IbsEncrypt("msgid","0123456789123456","","","123","");
String msg = ibs.getIbsClair();
System.out.println("MESSAGE témoin");
System.out.println(msg);
System.out.println("bin MSG témoin");
byte[] crypt0=ibs.getIbsCrypt(0);
for(int i=0;i<crypt0.length;i++) System.out.print(crypt0[i]);
System.out.println("");
String msg2=new String(crypt0);
System.out.println(msg2);
System.out.println("bin MSG crypt[1]");
byte[] crypt=ibs.getIbsCrypt(1);
for(int i=0;i<crypt.length;i++) System.out.print(crypt[i]);
System.out.println("");
String msg3=new String(crypt);
System.out.println(msg3);
System.out.println("bin MSG decrypt[1]");
byte[] decrypt=ibs.decryptIbs(crypt,1);
for(int i=0;i<decrypt.length;i++) System.out.print(decrypt[i]);
System.out.println("");
String msg4=new String(decrypt);
System.out.println(msg4);
}
} |
Cryptage triple des cbc
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