Examples with KeyGenerationException com.github.dedis.popstellar.utility.error.keys.KeyGenerationException used on opensource projects

Example 1 with KeyGenerationException

use of com.github.dedis.popstellar.utility.error.keys.KeyGenerationException in project popstellar by dedis.

the class Wallet method generateKeyFromPath.

/**
 * Generate a PoPToken (i.e. a key pair) from a given path.
 *
 * @param path a String path of the form: m/i/j/k/... where i,j,k,.. are 31-bit integer.
 * @return the generated PoP Token
 * @throws KeyGenerationException if an error occurs
 * @throws UninitializedWalletException if the wallet is not initialized with a seed
 */
private PoPToken generateKeyFromPath(@NonNull String path) throws KeyGenerationException, UninitializedWalletException {
    if (!isSetUp()) {
        throw new UninitializedWalletException();
    }
    // convert the path string in an array of int
    int[] pathValueInt = Arrays.stream(path.split("/")).skip(// remove the first element ('m')
    1).mapToInt(Integer::parseInt).toArray();
    try {
        // derive private and public key
        byte[] privateKey = SLIP10.deriveEd25519PrivateKey(aead.decrypt(seed, new byte[0]), pathValueInt);
        Ed25519PrivateKeyParameters prK = new Ed25519PrivateKeyParameters(privateKey, 0);
        Ed25519PublicKeyParameters puK = prK.generatePublicKey();
        byte[] publicKey = puK.getEncoded();
        return new PoPToken(privateKey, publicKey);
    } catch (GeneralSecurityException e) {
        throw new KeyGenerationException(e);
    }
}

Example 2 with KeyGenerationException

use of com.github.dedis.popstellar.utility.error.keys.KeyGenerationException in project popstellar by dedis.

the class KeyManagerTest method popTokenRetrievingFailsWhenWalletFails.

@Test
public void popTokenRetrievingFailsWhenWalletFails() throws KeyException {
    PoPToken token = Base64DataUtils.generatePoPToken();
    // create LAO and RollCall
    Lao lao = new Lao("lao", Base64DataUtils.generatePublicKey(), 54213424);
    RollCall rollCall = new RollCall(lao.getId(), 5421364, "rollcall");
    lao.updateRollCall(rollCall.getId(), rollCall);
    KeyManager manager = new KeyManager(androidKeysetManager, wallet);
    // Test with every possible errors
    when(wallet.recoverKey(any(), any(), any())).thenThrow(new KeyGenerationException(new GeneralSecurityException()));
    assertThrows(KeyGenerationException.class, () -> manager.getValidPoPToken(lao));
    verify(wallet, times(1)).recoverKey(eq(lao.getId()), eq(rollCall.getId()), any());
    reset(wallet);
    when(wallet.recoverKey(any(), any(), any())).thenThrow(new UninitializedWalletException());
    assertThrows(UninitializedWalletException.class, () -> manager.getValidPoPToken(lao));
    verify(wallet, times(1)).recoverKey(eq(lao.getId()), eq(rollCall.getId()), any());
    reset(wallet);
    when(wallet.recoverKey(any(), any(), any())).thenThrow(new InvalidPoPTokenException(token));
    assertThrows(InvalidPoPTokenException.class, () -> manager.getValidPoPToken(lao));
    verify(wallet, times(1)).recoverKey(eq(lao.getId()), eq(rollCall.getId()), any());
}