/// <summary>
/// Encrypt the plainData using the existing Content Key (CK) and return a new
/// EncryptedContent.
/// </summary>
///
/// <param name="plainData">The data to encrypt.</param>
/// <returns>The new EncryptedContent.</returns>
public EncryptedContent encrypt(byte[] plainData)
{
// Generate the initial vector.
byte[] initialVector = new byte[AES_IV_SIZE];
net.named_data.jndn.util.Common.getRandom().nextBytes(initialVector);
Cipher cipher = javax.crypto.Cipher.getInstance("AES/CBC/PKCS5PADDING");
try {
cipher.init(javax.crypto.Cipher.ENCRYPT_MODE, new SecretKeySpec(ckBits_, "AES"),
new IvParameterSpec(initialVector));
} catch (InvalidKeyException ex) {
throw new Exception(
"If the error is 'Illegal key size', try installing the "
+ "Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files: "
+ ex);
}
byte[] encryptedData = cipher.doFinal(plainData);
EncryptedContent content = new EncryptedContent();
content.setInitialVector(new Blob(initialVector, false));
content.setPayload(new Blob(encryptedData, false));
content.setKeyLocatorName(ckName_);
return(content);
}
