Examples with CipherInputStream javax.crypto.CipherInputStream used on opensource projects

Example 31 with CipherInputStream

use of javax.crypto.CipherInputStream in project ExoPlayer by google.

the class CachedContentIndex method readFile.

private boolean readFile() {
    DataInputStream input = null;
    try {
        InputStream inputStream = new BufferedInputStream(atomicFile.openRead());
        input = new DataInputStream(inputStream);
        int version = input.readInt();
        if (version != VERSION) {
            // Currently there is no other version
            return false;
        }
        int flags = input.readInt();
        if ((flags & FLAG_ENCRYPTED_INDEX) != 0) {
            if (cipher == null) {
                return false;
            }
            byte[] initializationVector = new byte[16];
            input.readFully(initializationVector);
            IvParameterSpec ivParameterSpec = new IvParameterSpec(initializationVector);
            try {
                cipher.init(Cipher.DECRYPT_MODE, secretKeySpec, ivParameterSpec);
            } catch (InvalidKeyException | InvalidAlgorithmParameterException e) {
                throw new IllegalStateException(e);
            }
            input = new DataInputStream(new CipherInputStream(inputStream, cipher));
        } else {
            if (cipher != null) {
                // Force index to be rewritten encrypted after read.
                changed = true;
            }
        }
        int count = input.readInt();
        int hashCode = 0;
        for (int i = 0; i < count; i++) {
            CachedContent cachedContent = new CachedContent(input);
            add(cachedContent);
            hashCode += cachedContent.headerHashCode();
        }
        if (input.readInt() != hashCode) {
            return false;
        }
    } catch (FileNotFoundException e) {
        return false;
    } catch (IOException e) {
        Log.e(TAG, "Error reading cache content index file.", e);
        return false;
    } finally {
        if (input != null) {
            Util.closeQuietly(input);
        }
    }
    return true;
}

Example 32 with CipherInputStream

use of javax.crypto.CipherInputStream in project RxCache by VictorAlbertos.

the class BuiltInEncryptor method encrypt.

@Override
public void encrypt(String key, File decryptedFile, File encryptedFile) {
    initCiphers(key);
    try {
        CipherInputStream cis = new CipherInputStream(new FileInputStream(decryptedFile), encryptCipher);
        write(cis, new FileOutputStream(encryptedFile));
    } catch (Exception e) {
        e.printStackTrace();
    }
}

Example 33 with CipherInputStream

use of javax.crypto.CipherInputStream in project robovm by robovm.

the class FilterInputStreamNullSourceTest method testCipherInputStream.

public void testCipherInputStream() throws IOException {
    InputStream in = new CipherInputStream(null, new NullCipher());
    try {
        in.read();
        fail();
    } catch (NullPointerException expected) {
    }
    assertEquals(0, in.available());
    try {
        in.close();
        fail();
    } catch (NullPointerException expected) {
    }
}

Example 34 with CipherInputStream

use of javax.crypto.CipherInputStream in project robovm by robovm.

the class CipherInputStreamTest method testEncrypt.

public void testEncrypt() throws Exception {
    Cipher cipher = Cipher.getInstance("DES");
    cipher.init(Cipher.ENCRYPT_MODE, key);
    InputStream in = new CipherInputStream(new ByteArrayInputStream(plainText.getBytes("UTF-8")), cipher);
    byte[] bytes = readAll(in);
    assertEquals(Arrays.toString(cipherText), Arrays.toString(bytes));
}

Example 35 with CipherInputStream

use of javax.crypto.CipherInputStream in project robovm by robovm.

the class CipherInputStreamTest method testDecrypt.

public void testDecrypt() throws Exception {
    Cipher cipher = Cipher.getInstance("DES");
    cipher.init(Cipher.DECRYPT_MODE, key);
    InputStream in = new CipherInputStream(new ByteArrayInputStream(cipherText), cipher);
    byte[] bytes = readAll(in);
    assertEquals(plainText, new String(bytes, "UTF-8"));
}