Examples with IvParameterSpec javax.crypto.spec.IvParameterSpec used on opensource projects

Example 31 with IvParameterSpec

use of javax.crypto.spec.IvParameterSpec in project remusic by aa112901.

the class AESTools method encrpty.

public static String encrpty(String paramString) {
    MessageDigest messageDigest = null;
    try {
        messageDigest = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    messageDigest.update(INPUT.getBytes());
    byte[] stringBytes = messageDigest.digest();
    StringBuilder stringBuilder = new StringBuilder(stringBytes.length * 2);
    for (int i = 0; i < stringBytes.length; i++) {
        stringBuilder.append(CHARS[((stringBytes[i] & 0xF0) >>> 4)]);
        stringBuilder.append(CHARS[(stringBytes[i] & 0xF)]);
    }
    String str = stringBuilder.toString();
    SecretKeySpec localSecretKeySpec = new SecretKeySpec(str.substring(str.length() / 2).getBytes(), "AES");
    Cipher localCipher;
    try {
        localCipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        localCipher.init(1, localSecretKeySpec, new IvParameterSpec(IV.getBytes()));
        return URLEncoder.encode(new String(BytesHandler.getChars(localCipher.doFinal(paramString.getBytes()))), "utf-8");
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (NoSuchPaddingException e) {
        e.printStackTrace();
    } catch (InvalidKeyException e) {
        e.printStackTrace();
    } catch (InvalidAlgorithmParameterException e) {
        e.printStackTrace();
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (IllegalBlockSizeException e) {
        e.printStackTrace();
    } catch (BadPaddingException e) {
        e.printStackTrace();
    }
    return "";
}

Example 32 with IvParameterSpec

use of javax.crypto.spec.IvParameterSpec in project LuaViewSDK by alibaba.

the class DecryptUtil method aes.

/**
     * 使用aes256进行解密
     *
     * @param encrypted
     * @return
     */
public static byte[] aes(final byte[] keys, final byte[] encrypted) {
    try {
        //get cipher
        Cipher cipher = AppCache.getCache(CACHE_PUBLIC_KEY).get(Constants.PUBLIC_KEY_PATH_CIPHER);
        if (cipher == null) {
            final SecretKeySpec skeySpec = new SecretKeySpec(keys, ALGORITHM_AES);
            final IvParameterSpec ivParameterSpec = new IvParameterSpec(cIv);
            cipher = Cipher.getInstance(ALGORITHM_AES);
            cipher.init(Cipher.DECRYPT_MODE, skeySpec, ivParameterSpec);
            //cache cipher
            AppCache.getCache(CACHE_PUBLIC_KEY).put(Constants.PUBLIC_KEY_PATH_CIPHER, cipher);
        }
        return cipher.doFinal(encrypted);
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (NoSuchPaddingException e) {
        e.printStackTrace();
    } catch (InvalidKeyException e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

Example 33 with IvParameterSpec

use of javax.crypto.spec.IvParameterSpec in project android_frameworks_base by ParanoidAndroid.

the class Pm method runInstall.

private void runInstall() {
    int installFlags = PackageManager.INSTALL_ALL_USERS;
    String installerPackageName = null;
    String opt;
    String algo = null;
    byte[] iv = null;
    byte[] key = null;
    String macAlgo = null;
    byte[] macKey = null;
    byte[] tag = null;
    String originatingUriString = null;
    String referrer = null;
    while ((opt = nextOption()) != null) {
        if (opt.equals("-l")) {
            installFlags |= PackageManager.INSTALL_FORWARD_LOCK;
        } else if (opt.equals("-r")) {
            installFlags |= PackageManager.INSTALL_REPLACE_EXISTING;
        } else if (opt.equals("-i")) {
            installerPackageName = nextOptionData();
            if (installerPackageName == null) {
                System.err.println("Error: no value specified for -i");
                return;
            }
        } else if (opt.equals("-t")) {
            installFlags |= PackageManager.INSTALL_ALLOW_TEST;
        } else if (opt.equals("-s")) {
            // Override if -s option is specified.
            installFlags |= PackageManager.INSTALL_EXTERNAL;
        } else if (opt.equals("-f")) {
            // Override if -s option is specified.
            installFlags |= PackageManager.INSTALL_INTERNAL;
        } else if (opt.equals("-d")) {
            installFlags |= PackageManager.INSTALL_ALLOW_DOWNGRADE;
        } else if (opt.equals("--algo")) {
            algo = nextOptionData();
            if (algo == null) {
                System.err.println("Error: must supply argument for --algo");
                return;
            }
        } else if (opt.equals("--iv")) {
            iv = hexToBytes(nextOptionData());
            if (iv == null) {
                System.err.println("Error: must supply argument for --iv");
                return;
            }
        } else if (opt.equals("--key")) {
            key = hexToBytes(nextOptionData());
            if (key == null) {
                System.err.println("Error: must supply argument for --key");
                return;
            }
        } else if (opt.equals("--macalgo")) {
            macAlgo = nextOptionData();
            if (macAlgo == null) {
                System.err.println("Error: must supply argument for --macalgo");
                return;
            }
        } else if (opt.equals("--mackey")) {
            macKey = hexToBytes(nextOptionData());
            if (macKey == null) {
                System.err.println("Error: must supply argument for --mackey");
                return;
            }
        } else if (opt.equals("--tag")) {
            tag = hexToBytes(nextOptionData());
            if (tag == null) {
                System.err.println("Error: must supply argument for --tag");
                return;
            }
        } else if (opt.equals("--originating-uri")) {
            originatingUriString = nextOptionData();
            if (originatingUriString == null) {
                System.err.println("Error: must supply argument for --originating-uri");
                return;
            }
        } else if (opt.equals("--referrer")) {
            referrer = nextOptionData();
            if (referrer == null) {
                System.err.println("Error: must supply argument for --referrer");
                return;
            }
        } else {
            System.err.println("Error: Unknown option: " + opt);
            return;
        }
    }
    final ContainerEncryptionParams encryptionParams;
    if (algo != null || iv != null || key != null || macAlgo != null || macKey != null || tag != null) {
        if (algo == null || iv == null || key == null) {
            System.err.println("Error: all of --algo, --iv, and --key must be specified");
            return;
        }
        if (macAlgo != null || macKey != null || tag != null) {
            if (macAlgo == null || macKey == null || tag == null) {
                System.err.println("Error: all of --macalgo, --mackey, and --tag must " + "be specified");
                return;
            }
        }
        try {
            final SecretKey encKey = new SecretKeySpec(key, "RAW");
            final SecretKey macSecretKey;
            if (macKey == null || macKey.length == 0) {
                macSecretKey = null;
            } else {
                macSecretKey = new SecretKeySpec(macKey, "RAW");
            }
            encryptionParams = new ContainerEncryptionParams(algo, new IvParameterSpec(iv), encKey, macAlgo, null, macSecretKey, tag, -1, -1, -1);
        } catch (InvalidAlgorithmParameterException e) {
            e.printStackTrace();
            return;
        }
    } else {
        encryptionParams = null;
    }
    final Uri apkURI;
    final Uri verificationURI;
    final Uri originatingURI;
    final Uri referrerURI;
    if (originatingUriString != null) {
        originatingURI = Uri.parse(originatingUriString);
    } else {
        originatingURI = null;
    }
    if (referrer != null) {
        referrerURI = Uri.parse(referrer);
    } else {
        referrerURI = null;
    }
    // Populate apkURI, must be present
    final String apkFilePath = nextArg();
    System.err.println("\tpkg: " + apkFilePath);
    if (apkFilePath != null) {
        apkURI = Uri.fromFile(new File(apkFilePath));
    } else {
        System.err.println("Error: no package specified");
        return;
    }
    // Populate verificationURI, optionally present
    final String verificationFilePath = nextArg();
    if (verificationFilePath != null) {
        System.err.println("\tver: " + verificationFilePath);
        verificationURI = Uri.fromFile(new File(verificationFilePath));
    } else {
        verificationURI = null;
    }
    PackageInstallObserver obs = new PackageInstallObserver();
    try {
        VerificationParams verificationParams = new VerificationParams(verificationURI, originatingURI, referrerURI, VerificationParams.NO_UID, null);
        mPm.installPackageWithVerificationAndEncryption(apkURI, obs, installFlags, installerPackageName, verificationParams, encryptionParams);
        synchronized (obs) {
            while (!obs.finished) {
                try {
                    obs.wait();
                } catch (InterruptedException e) {
                }
            }
            if (obs.result == PackageManager.INSTALL_SUCCEEDED) {
                System.out.println("Success");
            } else {
                System.err.println("Failure [" + installFailureToString(obs.result) + "]");
            }
        }
    } catch (RemoteException e) {
        System.err.println(e.toString());
        System.err.println(PM_NOT_RUNNING_ERR);
    }
}

Example 34 with IvParameterSpec

use of javax.crypto.spec.IvParameterSpec in project android-pbe by nelenkov.

the class Crypto method encrypt.

public static String encrypt(String plaintext, SecretKey key, byte[] salt) {
    try {
        Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);
        byte[] iv = generateIv(cipher.getBlockSize());
        Log.d(TAG, "IV: " + toHex(iv));
        IvParameterSpec ivParams = new IvParameterSpec(iv);
        cipher.init(Cipher.ENCRYPT_MODE, key, ivParams);
        Log.d(TAG, "Cipher IV: " + (cipher.getIV() == null ? null : toHex(cipher.getIV())));
        byte[] cipherText = cipher.doFinal(plaintext.getBytes("UTF-8"));
        if (salt != null) {
            return String.format("%s%s%s%s%s", toBase64(salt), DELIMITER, toBase64(iv), DELIMITER, toBase64(cipherText));
        }
        return String.format("%s%s%s", toBase64(iv), DELIMITER, toBase64(cipherText));
    } catch (GeneralSecurityException e) {
        throw new RuntimeException(e);
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(e);
    }
}

Example 35 with IvParameterSpec

use of javax.crypto.spec.IvParameterSpec in project XobotOS by xamarin.

the class JCEMac method engineInit.

protected void engineInit(Key key, AlgorithmParameterSpec params) throws InvalidKeyException, InvalidAlgorithmParameterException {
    CipherParameters param;
    if (key == null) {
        throw new InvalidKeyException("key is null");
    }
    if (key instanceof JCEPBEKey) {
        JCEPBEKey k = (JCEPBEKey) key;
        if (k.getParam() != null) {
            param = k.getParam();
        } else if (params instanceof PBEParameterSpec) {
            param = PBE.Util.makePBEMacParameters(k, params);
        } else {
            throw new InvalidAlgorithmParameterException("PBE requires PBE parameters to be set.");
        }
    } else if (params instanceof IvParameterSpec) {
        param = new ParametersWithIV(new KeyParameter(key.getEncoded()), ((IvParameterSpec) params).getIV());
    } else if (params == null) {
        param = new KeyParameter(key.getEncoded());
    } else {
        throw new InvalidAlgorithmParameterException("unknown parameter type.");
    }
    macEngine.init(param);
}