List of usage examples for org.bouncycastle.crypto.engines AESEngine AESEngine
public AESEngine()
From source file:com.android.isoma.enc.Encryption.java
License:Open Source License
public synchronized byte[] encrypt(byte[] data) throws DataLengthException, IllegalStateException, InvalidCipherTextException { byte[] iv = null; if (data == null || data.length == 0) { return new byte[0]; }//from w ww . java2 s .c om BufferedBlockCipher encryptcipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine()), new ZeroBytePadding()); String source = "00000000"; iv = source.getBytes(); CipherParameters ivAndKey = new ParametersWithIV(key, iv); encryptcipher.init(true, ivAndKey); return callCipher(encryptcipher, data); }
From source file:com.android.isoma.enc.Encryption.java
License:Open Source License
public synchronized byte[] decrypt(byte[] data) throws DataLengthException, IllegalStateException, InvalidCipherTextException { byte[] iv = null; if (data == null || data.length == 0) { return new byte[0]; }/*w ww .j a v a 2 s . c o m*/ BufferedBlockCipher decryptcipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine()), new ZeroBytePadding()); String source = "00000000"; iv = source.getBytes(); CipherParameters ivAndKey = new ParametersWithIV(key, iv); decryptcipher.init(false, ivAndKey); return callCipher(decryptcipher, data); }
From source file:com.codename1.crypto.EncryptedStorage.java
License:Open Source License
private void InitCiphers() { encryptCipher = new PaddedBufferedBlockCipher(new AESEngine()); encryptCipher.init(true, new KeyParameter(key)); decryptCipher = new PaddedBufferedBlockCipher(new AESEngine()); decryptCipher.init(false, new KeyParameter(key)); }
From source file:com.completetrsst.crypto.Crypto.java
License:Apache License
private static byte[] _cryptIES(byte[] input, Key recipient, boolean forEncryption) throws InvalidKeyException, IllegalBlockSizeException, BadPaddingException { IESCipher cipher = new IESCipher(new IESEngine(new ECDHBasicAgreement(), new KDF2BytesGenerator(new SHA1Digest()), new HMac(new SHA256Digest()), new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine())))); cipher.engineInit(forEncryption ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, recipient, new SecureRandom()); return cipher.engineDoFinal(input, 0, input.length); }
From source file:com.completetrsst.crypto.Crypto.java
License:Apache License
private static byte[] _cryptBytesAES(byte[] input, byte[] key, boolean forEncryption) throws InvalidCipherTextException { assert key.length == 32; // 32 bytes == 256 bits return process(input, new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine())), new KeyParameter(key), forEncryption); // note: using zero IV because we generate a new key for every message }
From source file:com.giacomodrago.immediatecrypt.aes.AESFacadeImpl.java
License:Open Source License
@Override public AESEncryptedMessage encrypt(byte[] plaintext, String password) throws EncryptionException { // Check password is not empty if (password.isEmpty()) { throw new EncryptionException("Password is empty."); }// w w w . j a v a2 s. c o m // Generate random password salt String salt = RandomStringUtils.randomAlphanumeric(SALT_LENGTH); ParametersWithIV params = createEncryptionParameters(password, salt); byte[] iv = params.getIV(); BufferedBlockCipher cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine())); cipher.init(true, params); byte[] ciphertext = new byte[cipher.getOutputSize(plaintext.length)]; int outputLen = cipher.processBytes(plaintext, 0, plaintext.length, ciphertext, 0); try { cipher.doFinal(ciphertext, outputLen); } catch (DataLengthException ex) { throw new EncryptionException(ex); } catch (IllegalStateException ex) { throw new EncryptionException(ex); } catch (InvalidCipherTextException ex) { throw new EncryptionException(ex); } return new AESEncryptedMessage(salt, iv, ciphertext); }
From source file:com.giacomodrago.immediatecrypt.aes.AESFacadeImpl.java
License:Open Source License
@Override public byte[] decrypt(AESEncryptedMessage encryptedMessage, String password) throws EncryptionException { byte[] ciphertext = encryptedMessage.getCiphertext(); String salt = encryptedMessage.getSalt(); byte[] iv = encryptedMessage.getIv(); ParametersWithIV params = createDecryptionParameters(password, salt, iv); BufferedBlockCipher cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine())); try {//from w w w . j a va2 s.c o m cipher.init(false, params); } catch (IllegalArgumentException ex) { throw new EncryptionException(ex); } byte[] plaintext = new byte[cipher.getOutputSize(ciphertext.length)]; int outputLen = cipher.processBytes(ciphertext, 0, ciphertext.length, plaintext, 0); try { cipher.doFinal(plaintext, outputLen); } catch (DataLengthException ex) { throw new EncryptionException(ex); } catch (IllegalStateException ex) { throw new EncryptionException(ex); } catch (InvalidCipherTextException ex) { throw new EncryptionException(ex); } return plaintext; }
From source file:com.github.flbaue.jcrypttool.v1.DecryptionRunnable.java
License:Apache License
@Override public void run() { PaddedBufferedBlockCipher cipher;// w ww. java 2s.co m byte[] key; byte[] iv; byte[] salt; try (InputStream fileInputStream = new BufferedInputStream( new FileInputStream(encryptionSettings.inputFile))) { cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine()), new PKCS7Padding()); salt = extractSalt(fileInputStream); iv = extractIV(fileInputStream); key = generateKey(encryptionSettings.password, salt); KeyParameter keyParam = new KeyParameter(key); CipherParameters params = new ParametersWithIV(keyParam, iv); cipher.init(false, params); /* System.out.println(getClass().getName() + " salt:\t" + Base64.toBase64String(salt) + " (" + salt.length + " byte)"); System.out.println(getClass().getName() + " key:\t" + Base64.toBase64String(key) + " (" + key.length + " byte)"); System.out.println(getClass().getName() + " iv:\t\t" + Base64.toBase64String(iv) + " (" + iv.length + " byte)"); */ InputStream in = null; OutputStream out = null; try { in = new GZIPInputStream(new CipherInputStream(fileInputStream, cipher)); out = new BufferedOutputStream(new FileOutputStream(encryptionSettings.outputFile)); processStreams(in, out); } catch (IOException e) { throw new RuntimeException(e); } finally { closeStream(in); closeStream(out); } } catch (IOException e) { throw new RuntimeException(e); } }
From source file:com.github.flbaue.jcrypttool.v1.EncryptionRunnable.java
License:Apache License
@Override public void run() { progress.start();/* w w w .j a v a 2s . c om*/ final byte[] salt = generateSalt(); final byte[] key = generateKey(encryptionSettings.password, salt); final byte[] iv; final PaddedBufferedBlockCipher cipher; try (OutputStream fileOutputStream = new BufferedOutputStream( new FileOutputStream(encryptionSettings.outputFile))) { cipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine()), new PKCS7Padding()); iv = generateIV(); final KeyParameter keyParam = new KeyParameter(key); final CipherParameters params = new ParametersWithIV(keyParam, iv); cipher.init(true, params); /* System.out.println(getClass().getName() + " salt:\t" + Base64.toBase64String(salt) + " (" + salt.length + " byte)"); System.out.println(getClass().getName() + " key:\t" + Base64.toBase64String(key) + " (" + key.length + " byte)"); System.out.println(getClass().getName() + " iv:\t\t" + Base64.toBase64String(iv) + " (" + iv.length + " byte)"); */ InputStream in = null; OutputStream out = null; try { writeInitBlock(fileOutputStream, salt, iv); in = new BufferedInputStream(new FileInputStream(encryptionSettings.inputFile)); out = new GZIPOutputStream(new CipherOutputStream(fileOutputStream, cipher)); processStreams(in, out); } catch (IOException e) { throw new RuntimeException(e); } finally { closeStream(in); closeStream(out); } } catch (IOException e) { throw new RuntimeException(e); } progress.setFinished(); }
From source file:com.github.flbaue.jcrypttool.v2.domain.AesEncryptionService.java
License:Apache License
@Override public OutputStream encryptedOutputStream(final Path path, final String password) throws IOException, EncryptionFailedException { try {// w w w . ja v a 2 s . c o m final byte[] salt = generateSalt(); final byte[] key = generateKey(password, salt); final byte[] iv = generateIV(); final byte[] fileInitBlock = generateOutputInitBlock(salt, iv); final PaddedBufferedBlockCipher cipher = new PaddedBufferedBlockCipher( new CBCBlockCipher(new AESEngine()), new PKCS7Padding()); final KeyParameter keyParam = new KeyParameter(key); final CipherParameters params = new ParametersWithIV(keyParam, iv); cipher.init(true, params); final BufferedOutputStream out = new BufferedOutputStream(Files.newOutputStream(path)); out.write(fileInitBlock); return new CipherOutputStream(out, cipher); } catch (InvalidKeySpecException | NoSuchAlgorithmException e) { throw new EncryptionFailedException(e); } }