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

Example 71 with IllegalBlockSizeException

use of javax.crypto.IllegalBlockSizeException in project Conversations by siacs.

the class XmppAxolotlMessage method decrypt.

public XmppAxolotlPlaintextMessage decrypt(XmppAxolotlSession session, Integer sourceDeviceId) throws CryptoFailedException {
    XmppAxolotlPlaintextMessage plaintextMessage = null;
    byte[] key = unpackKey(session, sourceDeviceId);
    if (key != null) {
        try {
            if (key.length >= 32) {
                int authtaglength = key.length - 16;
                Log.d(Config.LOGTAG, "found auth tag as part of omemo key");
                byte[] newCipherText = new byte[key.length - 16 + ciphertext.length];
                byte[] newKey = new byte[16];
                System.arraycopy(ciphertext, 0, newCipherText, 0, ciphertext.length);
                System.arraycopy(key, 16, newCipherText, ciphertext.length, authtaglength);
                System.arraycopy(key, 0, newKey, 0, newKey.length);
                ciphertext = newCipherText;
                key = newKey;
            }
            Cipher cipher = Cipher.getInstance(CIPHERMODE, PROVIDER);
            SecretKeySpec keySpec = new SecretKeySpec(key, KEYTYPE);
            IvParameterSpec ivSpec = new IvParameterSpec(iv);
            cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
            String plaintext = new String(cipher.doFinal(ciphertext));
            plaintextMessage = new XmppAxolotlPlaintextMessage(Config.OMEMO_PADDING ? plaintext.trim() : plaintext, session.getFingerprint());
        } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException | InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException | NoSuchProviderException e) {
            throw new CryptoFailedException(e);
        }
    }
    return plaintextMessage;
}

Example 72 with IllegalBlockSizeException

use of javax.crypto.IllegalBlockSizeException in project sakuli by ConSol.

the class CipherUtil method decrypt.

/**
     * Decrypts a String to the secret. The decryption must be take place on the same physical machine like the encryption, see {@link #encrypt(String)}.
     *
     * @param strToDecrypt String to encrypt
     * @return the decrypted secret
     * @throws SakuliCipherException if the decryption fails.
     */
public String decrypt(String strToDecrypt) throws SakuliCipherException {
    try {
        Cipher cipher = Cipher.getInstance(algorithm);
        cipher.init(Cipher.DECRYPT_MODE, getKey());
        return new String(cipher.doFinal(Base64.decodeBase64(strToDecrypt)));
    } catch (IllegalBlockSizeException e) {
        throw new SakuliCipherException("Maybe this secret hasn't been encrypted correctly! Maybe encrypt it again!", interfaceLog, e);
    } catch (Exception e) {
        throw new SakuliCipherException(e, interfaceLog);
    }
}

Example 73 with IllegalBlockSizeException

use of javax.crypto.IllegalBlockSizeException in project android_frameworks_base by DirtyUnicorns.

the class LockSettingsService method resetKeyStore.

@Override
public void resetKeyStore(int userId) throws RemoteException {
    checkWritePermission(userId);
    if (DEBUG)
        Slog.v(TAG, "Reset keystore for user: " + userId);
    int managedUserId = -1;
    String managedUserDecryptedPassword = null;
    final List<UserInfo> profiles = mUserManager.getProfiles(userId);
    for (UserInfo pi : profiles) {
        // Unlock managed profile with unified lock
        if (pi.isManagedProfile() && !mLockPatternUtils.isSeparateProfileChallengeEnabled(pi.id) && mStorage.hasChildProfileLock(pi.id)) {
            try {
                if (managedUserId == -1) {
                    managedUserDecryptedPassword = getDecryptedPasswordForTiedProfile(pi.id);
                    managedUserId = pi.id;
                } else {
                    // Should not happen
                    Slog.e(TAG, "More than one managed profile, uid1:" + managedUserId + ", uid2:" + pi.id);
                }
            } catch (UnrecoverableKeyException | InvalidKeyException | KeyStoreException | NoSuchAlgorithmException | NoSuchPaddingException | InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException | CertificateException | IOException e) {
                Slog.e(TAG, "Failed to decrypt child profile key", e);
            }
        }
    }
    try {
        // Clear all the users credentials could have been installed in for this user.
        for (int profileId : mUserManager.getProfileIdsWithDisabled(userId)) {
            for (int uid : SYSTEM_CREDENTIAL_UIDS) {
                mKeyStore.clearUid(UserHandle.getUid(profileId, uid));
            }
        }
    } finally {
        if (managedUserId != -1 && managedUserDecryptedPassword != null) {
            if (DEBUG)
                Slog.v(TAG, "Restore tied profile lock");
            tieProfileLockToParent(managedUserId, managedUserDecryptedPassword);
        }
    }
}

Example 74 with IllegalBlockSizeException

use of javax.crypto.IllegalBlockSizeException in project android_frameworks_base by DirtyUnicorns.

the class LockSettingsService method tieProfileLockToParent.

private void tieProfileLockToParent(int userId, String password) {
    if (DEBUG)
        Slog.v(TAG, "tieProfileLockToParent for user: " + userId);
    byte[] randomLockSeed = password.getBytes(StandardCharsets.UTF_8);
    byte[] encryptionResult;
    byte[] iv;
    try {
        KeyGenerator keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES);
        keyGenerator.init(new SecureRandom());
        SecretKey secretKey = keyGenerator.generateKey();
        java.security.KeyStore keyStore = java.security.KeyStore.getInstance("AndroidKeyStore");
        keyStore.load(null);
        try {
            keyStore.setEntry(LockPatternUtils.PROFILE_KEY_NAME_ENCRYPT + userId, new java.security.KeyStore.SecretKeyEntry(secretKey), new KeyProtection.Builder(KeyProperties.PURPOSE_ENCRYPT).setBlockModes(KeyProperties.BLOCK_MODE_GCM).setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_NONE).build());
            keyStore.setEntry(LockPatternUtils.PROFILE_KEY_NAME_DECRYPT + userId, new java.security.KeyStore.SecretKeyEntry(secretKey), new KeyProtection.Builder(KeyProperties.PURPOSE_DECRYPT).setBlockModes(KeyProperties.BLOCK_MODE_GCM).setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_NONE).setUserAuthenticationRequired(true).setUserAuthenticationValidityDurationSeconds(30).build());
            // Key imported, obtain a reference to it.
            SecretKey keyStoreEncryptionKey = (SecretKey) keyStore.getKey(LockPatternUtils.PROFILE_KEY_NAME_ENCRYPT + userId, null);
            Cipher cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_GCM + "/" + KeyProperties.ENCRYPTION_PADDING_NONE);
            cipher.init(Cipher.ENCRYPT_MODE, keyStoreEncryptionKey);
            encryptionResult = cipher.doFinal(randomLockSeed);
            iv = cipher.getIV();
        } finally {
            // The original key can now be discarded.
            keyStore.deleteEntry(LockPatternUtils.PROFILE_KEY_NAME_ENCRYPT + userId);
        }
    } catch (CertificateException | UnrecoverableKeyException | IOException | BadPaddingException | IllegalBlockSizeException | KeyStoreException | NoSuchPaddingException | NoSuchAlgorithmException | InvalidKeyException e) {
        throw new RuntimeException("Failed to encrypt key", e);
    }
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    try {
        if (iv.length != PROFILE_KEY_IV_SIZE) {
            throw new RuntimeException("Invalid iv length: " + iv.length);
        }
        outputStream.write(iv);
        outputStream.write(encryptionResult);
    } catch (IOException e) {
        throw new RuntimeException("Failed to concatenate byte arrays", e);
    }
    mStorage.writeChildProfileLock(userId, outputStream.toByteArray());
}

Example 75 with IllegalBlockSizeException

use of javax.crypto.IllegalBlockSizeException in project android_frameworks_base by DirtyUnicorns.

the class LockSettingsService method setLockPasswordInternal.

private void setLockPasswordInternal(String password, String savedCredential, int userId) throws RemoteException {
    byte[] currentHandle = getCurrentHandle(userId);
    if (password == null) {
        clearUserKeyProtection(userId);
        getGateKeeperService().clearSecureUserId(userId);
        mStorage.writePasswordHash(null, userId);
        setKeystorePassword(null, userId);
        fixateNewestUserKeyAuth(userId);
        onUserLockChanged(userId);
        notifyActivePasswordMetricsAvailable(null, userId);
        return;
    }
    if (isManagedProfileWithUnifiedLock(userId)) {
        // get credential from keystore when managed profile has unified lock
        try {
            savedCredential = getDecryptedPasswordForTiedProfile(userId);
        } catch (FileNotFoundException e) {
            Slog.i(TAG, "Child profile key not found");
        } catch (UnrecoverableKeyException | InvalidKeyException | KeyStoreException | NoSuchAlgorithmException | NoSuchPaddingException | InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException | CertificateException | IOException e) {
            Slog.e(TAG, "Failed to decrypt child profile key", e);
        }
    } else {
        if (currentHandle == null) {
            if (savedCredential != null) {
                Slog.w(TAG, "Saved credential provided, but none stored");
            }
            savedCredential = null;
        }
    }
    byte[] enrolledHandle = enrollCredential(currentHandle, savedCredential, password, userId);
    if (enrolledHandle != null) {
        CredentialHash willStore = new CredentialHash(enrolledHandle, CredentialHash.VERSION_GATEKEEPER);
        setUserKeyProtection(userId, password, doVerifyPassword(password, willStore, true, 0, userId, null));
        mStorage.writePasswordHash(enrolledHandle, userId);
        fixateNewestUserKeyAuth(userId);
        onUserLockChanged(userId);
    } else {
        throw new RemoteException("Failed to enroll password");
    }
}