*/
public
static
void main(String[] args) ...{
try
...{
RSAEncrypt encrypt =
new
RSAEncrypt();
String encryptText = "encryptText";
KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA");
keyPairGen.initialize(1024);
KeyPair keyPair = keyPairGen.generateKeyPair();
// Generate keys
RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
byte[] e = encrypt.encrypt(publicKey, encryptText.getBytes());
byte[] de = encrypt.decrypt(privateKey,e);
System.out.println(encrypt.bytesToString(e));
System.out.println(encrypt.bytesToString(de));
}
catch
(Exception e) ...{
e.printStackTrace();
}
}
/** *//**
* Change byte array to String.
* @return byte[]
*/
protected
String bytesToString(byte[] encrytpByte) ...{
String result = "";
for
(Byte bytes : encrytpByte) ...{
result += (char) bytes.intValue();
}
return
result;
}
/** *//**
* Encrypt String.
* @return byte[]
*/
protected
byte[] encrypt(RSAPublicKey publicKey, byte[] obj) ...{
if
(publicKey != null) ...{
try
...{
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
return
cipher.doFinal(obj);
}
catch
(Exception e) ...{