Android Utililty Methods AES Encrypt

List of utility methods to do AES Encrypt

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Description

The list of methods to do AES Encrypt are organized into topic(s).

Method

Stringencrypt(String seed, String clearText)
To encrypt a string. 
byte[] result = null;
try {
    byte[] rawkey = getRawKey(seed.getBytes());
    result = encrypt(rawkey, clearText.getBytes());
} catch (Exception e) {
    e.printStackTrace();
    return null;
if (result == null) {
    return null;
String content = toHex(result);
return content;
Stringencrypt(String seed, String cleartext)
encrypt 
byte[] rawKey = getRawKey(seed.getBytes());
byte[] result = encrypt(rawKey, cleartext.getBytes());
return toHex(result);
Stringencrypt(String src)
encrypt 
try {
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, makeKey(), makeIv());
    return Base64.encodeToString(cipher.doFinal(src.getBytes()),
            Base64.NO_WRAP);
} catch (Exception e) {
    throw new RuntimeException(e);
Stringencrypt(String src)
encrypt 
return encrypt(DEFAULT_KEY, src);
byte[]encrypt(String text, String key)
encrypt 
byte[] keyBytes = key.getBytes("UTF-8");
byte[] textBytes = text.getBytes("UTF-8");
AlgorithmParameterSpec ivSpec = new IvParameterSpec(ivBytes);
SecretKeySpec newKey = new SecretKeySpec(keyBytes, "AES");
Cipher cipher = null;
cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, newKey, ivSpec);
return cipher.doFinal(textBytes);
...
byte[]encrypt(byte[] content, String key)
encrypt 
try {
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    IvParameterSpec ivs = new IvParameterSpec(defaultIV);
    cipher.init(Cipher.ENCRYPT_MODE, getSecretKey(key), ivs);
    return cipher.doFinal(content);
} catch (Exception e) {
    e.printStackTrace();
return null;
byte[]encrypt(byte[] content, String password)
encrypt 
try {
    SecretKeySpec key = createKey(password);
    Cipher cipher = Cipher.getInstance(CipherMode);
    cipher.init(Cipher.ENCRYPT_MODE, key);
    byte[] result = cipher.doFinal(content);
    return result;
} catch (Exception e) {
    e.printStackTrace();
...
byte[]encrypt(byte[] content, String password)
encrypt 
byte[] result = null;
try {
    SecretKeySpec key = new SecretKeySpec(
            getRawKey(password.getBytes()), "AES");
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.ENCRYPT_MODE, key);
    result = cipher.doFinal(content);
} catch (Exception e) {
...
byte[]encrypt(byte[] data, Key key)
encrypt 
return encrypt(data, key, DEFAULT_CIPHER_ALGORITHM);
byte[]encrypt(byte[] data, Key key, String cipherAlgorithm)
encrypt 
Cipher cipher = Cipher.getInstance(cipherAlgorithm);
cipher.init(Cipher.ENCRYPT_MODE, key);
return cipher.doFinal(data);