A complete example of AES encryption algorithm implemented by Java _java

This article describes the AES encryption algorithm implemented by Java. Share to everyone for your reference, specific as follows:

Import Javax.crypto.Cipher;
Import Javax.crypto.spec.IvParameterSpec;
Import Javax.crypto.spec.SecretKeySpec;
Import android.util.Base64; /** * @author VIPIN.CB, vipin.cb@experionglobal.com <br> * Sep, 2013, 5:18:34 PM <br> * Package :-<b>com.veebow.util</b> <br> * project:-<b>Veebow</b> * <p> */Public CL
  Ass Aescrypt {private final Cipher Cipher;
  Private final Secretkeyspec key;
  Private Algorithmparameterspec spec;
  public static final String seed_16_character = "U1MJU1M0FDOUZ.QZ"; Public Aescrypt () throws Exception {//hash password with SHA-256 and crop the output to 128-bit for key messaged
    Igest Digest = messagedigest.getinstance ("SHA-256");
    Digest.update (Seed_16_character.getbytes ("UTF-8"));
    byte[] keybytes = new BYTE[32];
    System.arraycopy (Digest.digest (), 0, keybytes, 0, keybytes.length);
    cipher = Cipher.getinstance ("aes/cbc/pkcs7padding"); Key = new Secretkeyspec (keYbytes, "AES");
  Spec = Getiv ();
    Public Algorithmparameterspec Getiv () {byte[] IV = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,};
    Ivparameterspec Ivparameterspec;
    Ivparameterspec = new Ivparameterspec (iv);
  return ivparameterspec;
    public string Encrypt (string plaintext) throws Exception {Cipher.init (Cipher.encrypt_mode, key, spec);
    Byte[] encrypted = cipher.dofinal (Plaintext.getbytes ("UTF-8"));
    String encryptedtext = new String (Base64.encode (encrypted, Base64.default), "UTF-8");
  return encryptedtext;
    public string Decrypt (string cryptedtext) throws Exception {Cipher.init (Cipher.decrypt_mode, key, spec);
    byte[] bytes = Base64.decode (Cryptedtext, Base64.default);
    byte[] decrypted = cipher.dofinal (bytes);
    String decryptedtext = new String (decrypted, "UTF-8");
  return decryptedtext;

 }
}

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Password Security online detection:
Http://tools.jb51.net/password/my_password_safe

High Strength Password Generator:
Http://tools.jb51.net/password/CreateStrongPassword

MD5 Online Encryption Tool:
Http://tools.jb51.net/password/CreateMD5Password

Thunderbolt, Express, Cyclone URL encryption/decryption tool:
Http://tools.jb51.net/password/urlrethunder

Online hashing/hashing algorithm encryption tool:
Http://tools.jb51.net/password/hash_encrypt

I hope this article will help you with Java programming.