Re: (Encryption Package) error: cannot find symbol symbol: class BaseNCode
When I add the below code (from line 2 in first post), I see the error for constant "Base64.DEFAULT" as:
cannot find symbol
symbol: variable DEFAULT
//Code from link 2 in first posting:
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
private final String characterEncoding = "UTF-8";
private final String cipherTransformation = "AES/CBC/PKCS5Padding";
private final String aesEncryptionAlgorithm = "AES";
public byte[] decrypt(byte[] cipherText, byte[] key, byte [] initialVector) throws NoSuchAlgorithmException,
NoSuchPaddingException,
InvalidKeyException,
InvalidAlgorithmParameterException,
IllegalBlockSizeException,
BadPaddingException
{
Cipher cipher = Cipher.getInstance(cipherTransformation);
SecretKeySpec secretKeySpecy = new SecretKeySpec(key, aesEncryptionAlgorithm);
IvParameterSpec ivParameterSpec = new IvParameterSpec(initialVector);
cipher.init(Cipher.DECRYPT_MODE, secretKeySpecy, ivParameterSpec);
cipherText = cipher.doFinal(cipherText);
return cipherText;
}
public byte[] encrypt(byte[] plainText, byte[] key, byte [] initialVector) throws NoSuchAlgorithmException,
NoSuchPaddingException,
InvalidKeyException,
InvalidAlgorithmParameterException,
IllegalBlockSizeException,
BadPaddingException
{
Cipher cipher = Cipher.getInstance(cipherTransformation);
SecretKeySpec secretKeySpec = new SecretKeySpec(key, aesEncryptionAlgorithm);
IvParameterSpec ivParameterSpec = new IvParameterSpec(initialVector);
cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec, ivParameterSpec);
plainText = cipher.doFinal(plainText);
return plainText;
}
private byte[] getKeyBytes(String key) throws UnsupportedEncodingException
{
byte[] keyBytes= new byte[16];
byte[] parameterKeyBytes= key.getBytes(characterEncoding);
System.arraycopy(parameterKeyBytes, 0, keyBytes, 0, Math.min(parameterKeyBytes.length, keyBytes.length));
return keyBytes;
}
/// <summary>
/// Encrypts plaintext using AES 128bit key and a Chain Block Cipher and returns a base64 encoded string
/// </summary>
/// <param name="plainText">Plain text to encrypt</param>
/// <param name="key">Secret key</param>
/// <returns>Base64 encoded string</returns>
public String encrypt(String plainText, String key) throws UnsupportedEncodingException,
InvalidKeyException,
NoSuchAlgorithmException,
NoSuchPaddingException,
InvalidAlgorithmParameterException,
IllegalBlockSizeException, BadPaddingException
{
byte[] plainTextbytes = plainText.getBytes(characterEncoding);
byte[] keyBytes = getKeyBytes(key);
return Base64.encodeToString(encrypt(plainTextbytes,keyBytes, keyBytes), Base64.DEFAULT);
}
/// <summary>
/// Decrypts a base64 encoded string using the given key (AES 128bit key and a Chain Block Cipher)
/// </summary>
/// <param name="encryptedText">Base64 Encoded String</param>
/// <param name="key">Secret Key</param>
/// <returns>Decrypted String</returns>
public String decrypt(String encryptedText, String key) throws KeyException,
GeneralSecurityException,
GeneralSecurityException,
InvalidAlgorithmParameterException,
IllegalBlockSizeException,
BadPaddingException,
IOException
{
byte[] cipheredBytes = Base64.decode(encryptedText, Base64.DEFAULT);
byte[] keyBytes = getKeyBytes(key);
return new String(decrypt(cipheredBytes, keyBytes, keyBytes), characterEncoding);
}