我需要用我的 Android 应用程序实现 AES 算法,我在下面创建了这段代码,它可以完美地作为 Java 应用程序工作,但似乎 Android 无法识别 JAXB。因为如您所见,我使用 import javax.xml.bind.DatatypeConverter,因为我使用 Datatype 转换器将字节 [] 转换为字符串...
我尝试导入 jaxb jar,但它再次失败并出现此错误:Conversion to Dalvik format failed with error 1。
我该如何解决这个问题?
这是代码:
public class AESCrypt {
private final Cipher cipher;
private final SecretKeySpec key;
private AlgorithmParameterSpec spec;
private String encryptedText, decryptedText;
ByteArrayOutputStream baos;
public AESCrypt(String password) throws Exception {
// hash password with SHA-256 and crop the output to 128-bit for key
MessageDigest digest = MessageDigest.getInstance("SHA-256");
digest.update(password.getBytes("UTF-8"));
byte[] keyBytes = new byte[16];
System.arraycopy(digest.digest(), 0, keyBytes, 0, keyBytes.length);
cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
key = new SecretKeySpec(keyBytes, "AES");
spec = getIV();
}
public AlgorithmParameterSpec getIV() {
AlgorithmParameterSpec ivspec;
byte[] iv = new byte[cipher.getBlockSize()];
new SecureRandom().nextBytes(iv);
ivspec = new IvParameterSpec(iv);
return ivspec;
}
public String encrypt(String plainText) throws Exception {
cipher.init(Cipher.ENCRYPT_MODE, key, spec);
byte[] encrypted = cipher.doFinal(plainText.getBytes());
encryptedText = DatatypeConverter.printBase64Binary(encrypted);
return encryptedText;
}
public String decrypt(String cryptedText) throws Exception {
cipher.init(Cipher.DECRYPT_MODE, key, spec);
byte[] bytes = DatatypeConverter.parseBase64Binary(cryptedText);
byte[] decrypted = cipher.doFinal(bytes);
decryptedText = new String(decrypted, "UTF-8");
return decryptedText;
}
}