How can we store the KEY in a key file for AES encryption using java so that the key file can be used for decryption purpose.
private static void storeKey(SecretKey key){
byte[] keyb = key.getEncoded();
FileOutputStream keyfos;
try {
File file = new File(generateKeyFilesPath);
if (!file.exists()) {
file.createNewFile();
}
keyfos = new FileOutputStream(file);
keyfos.write(keyb);
keyfos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private static SecretKeySpec getKey(String generateKeyFilesPath){
SecretKeySpec key = null;
try {
File keyFile = new File(path);
FileInputStream stream = new FileInputStream(keyFile);
byte[] bytesArray = new byte[(int) keyFile.length()];
stream.read(bytesArray);
stream.close();
key = new SecretKeySpec(bytesArray, "AES");
} catch (Exception e) {
e.printStackTrace();
}
return key;
}
Unable to decrypt the cipher using the stored key(file),
