public byte[] decrypt(byte[] encryptedData, String password) {
if (passwordEncoder.checkPassword(password)) {
StandardPBEByteEncryptor cipher = new StandardPBEByteEncryptor();
cipher.setAlgorithm(algorithm);
cipher.setPassword(password);
return cipher.decrypt(encryptedData);
} else {
LOGGER.error("password not matched!!!");
throw new IllegalArgumentException("password not matched!!!");
}
}
public void decrypt(File encryptedFile, String password, File trgtFile)
throws FileNotFoundException, IOException {
FileReader fr = null;
FileOutputStream fos = null;
BufferedReader br = null;
BufferedOutputStream bos = null;
if (passwordEncoder.checkPassword(password)) {
StandardPBEByteEncryptor cipher = new StandardPBEByteEncryptor();
cipher.setAlgorithm(algorithm);
cipher.setPassword(password);
try {
fr = new FileReader(encryptedFile);
br = new BufferedReader(fr);
fos = new FileOutputStream(trgtFile);
bos = new BufferedOutputStream(fos);
byte[] encrypted = null;
byte[] decrypted = null;
String line = null;
while ((line = br.readLine()) != null) {
try {
encrypted = base64.decode(line.getBytes("US-ASCII"));
} catch (Exception e) {
throw new RuntimeException(e);
}
decrypted = cipher.decrypt(encrypted);
bos.write(decrypted);
}
bos.flush();
} finally {
EgovResourceReleaser.close(fos, bos, fr, br);
}
} else {
LOGGER.error("password not matched!!!");
throw new IllegalArgumentException("password not matched!!!");
}
}
