Examples with ValidationException snowblossom.lib.ValidationException used on opensource projects

Example 1 with ValidationException

use of snowblossom.lib.ValidationException in project snowblossom by snowblossomcoin.

the class MsgSigUtil method validateSignedMessage.

public static SignedMessagePayload validateSignedMessage(SignedMessage sm, NetworkParams params) throws ValidationException {
    try {
        SignedMessagePayload payload = SignedMessagePayload.parseFrom(sm.getPayload());
        ByteString signature = sm.getSignature();
        AddressSpec claim = payload.getClaim();
        if ((claim.getRequiredSigners() != 1) || (claim.getSigSpecsCount() != 1)) {
            throw new ValidationException("Multisig not supported");
        }
        MessageDigest md = DigestUtil.getMD();
        byte[] hash = md.digest(sm.getPayload().toByteArray());
        SigSpec sig_spec = claim.getSigSpecs(0);
        if (!SignatureUtil.checkSignature(sig_spec, ByteString.copyFrom(hash), signature)) {
            throw new ValidationException("Signature match failure");
        }
        if (payload.getTimestamp() > params.getMaxClockSkewMs() + System.currentTimeMillis()) {
            throw new ValidationException("Signed message too far into future");
        }
        return payload;
    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw new ValidationException(e);
    }
}

Example 2 with ValidationException

use of snowblossom.lib.ValidationException in project snowblossom by snowblossomcoin.

the class AddressUtilTest method testAddressChecksumDataChange.

@Test
public void testAddressChecksumDataChange() throws Exception {
    Random rnd = new Random();
    byte[] buff = new byte[Globals.ADDRESS_SPEC_HASH_LEN];
    int checks = 0;
    for (int pass = 0; pass < 10000; pass++) {
        rnd.nextBytes(buff);
        AddressSpecHash spec = new AddressSpecHash(buff);
        String addr = Duck32.encode("d1", spec.getBytes());
        int colon = addr.indexOf(":");
        String without = addr.substring(colon + 1);
        int idx = rnd.nextInt(without.length());
        char replace = Duck32.CHARSET.charAt(rnd.nextInt(32));
        String n = without.substring(0, idx) + replace + without.substring(idx + 1);
        Assert.assertEquals(without.length(), n.length());
        if (!without.equals(n)) {
            System.out.println(without + " " + n);
            try {
                checks++;
                Duck32.decode("d1", n);
                Assert.fail("Should have gotten exception");
            } catch (ValidationException e) {
            }
        }
    }
    System.out.println("Did " + checks + " checksum mutations");
    Assert.assertTrue(checks > 8000);
}

Example 3 with ValidationException

use of snowblossom.lib.ValidationException in project snowblossom by snowblossomcoin.

the class MsgSigUtil method signMessage.

/**
 * @param starting_payload should have of oneof z specified for the body.
 */
public static SignedMessage signMessage(AddressSpec claim, WalletKeyPair wkp, SignedMessagePayload starting_payload) throws ValidationException {
    if ((claim.getRequiredSigners() != 1) || (claim.getSigSpecsCount() != 1)) {
        throw new ValidationException("Multisig not supported");
    }
    SignedMessagePayload.Builder payload = SignedMessagePayload.newBuilder();
    payload.mergeFrom(starting_payload);
    payload.setTimestamp(System.currentTimeMillis());
    payload.setClaim(claim);
    ByteString payload_data = payload.build().toByteString();
    SignedMessage.Builder signed = SignedMessage.newBuilder();
    signed.setPayload(payload_data);
    MessageDigest md = DigestUtil.getMD();
    byte[] hash = md.digest(payload_data.toByteArray());
    signed.setSignature(SignatureUtil.sign(wkp, ByteString.copyFrom(hash)));
    return signed.build();
}

Example 4 with ValidationException

use of snowblossom.lib.ValidationException in project snowblossom by snowblossomcoin.

the class WalletUtil method testWallet.

public static List<AddressSpecHash> testWallet(WalletDatabase db) throws ValidationException {
    Random rnd = new Random();
    byte[] rnd_bytes = new byte[32];
    rnd.nextBytes(rnd_bytes);
    ChainHash rnd_hash = new ChainHash(rnd_bytes);
    for (WalletKeyPair pair : db.getKeysList()) {
        SigSpec sig_spec = SigSpec.newBuilder().setSignatureType(pair.getSignatureType()).setPublicKey(pair.getPublicKey()).build();
        ByteString sig = SignatureUtil.sign(pair, rnd_hash);
        if (!SignatureUtil.checkSignature(sig_spec, rnd_hash.getBytes(), sig)) {
            throw new ValidationException("Signature check failure on keypair: " + pair);
        }
    }
    LinkedList<AddressSpecHash> addresses = new LinkedList<>();
    for (AddressSpec spec : db.getAddressesList()) {
        addresses.add(AddressUtil.getHashForSpec(spec));
    }
    return addresses;
}

Example 5 with ValidationException

use of snowblossom.lib.ValidationException in project snowblossom by snowblossomcoin.

the class ShardUtxoImport method getImportBlock.

/**
 * Gets the ImportedBlock as if *all* the exported shards were to be imported.
 * That way this can be filtered for what is needed but cached as a whole thing.
 */
public ImportedBlock getImportBlock(ChainHash hash) {
    synchronized (cache) {
        ImportedBlock ib = cache.get(hash);
        if (ib != null)
            return ib;
    }
    try (TimeRecordAuto tra = TimeRecord.openAuto("ShardUtxoImport.getImportBlock")) {
        ImportedBlock ib = null;
        if (node.getDB().getBlockTrust(hash)) {
            ib = node.getDB().getImportedBlockMap().get(hash.getBytes());
        }
        if (ib == null) {
            ImportedBlock.Builder ibb = ImportedBlock.newBuilder();
            Block blk = node.getDB().getBlockMap().get(hash.getBytes());
            if (blk == null)
                return null;
            ibb.setHeader(blk.getHeader());
            Set<Integer> cover_set = ShardUtil.getCoverSet(blk.getHeader().getShardId(), node.getParams());
            Map<Integer, ImportedOutputList.Builder> output_list_map = new TreeMap<>();
            for (Transaction tx : blk.getTransactionsList()) {
                TransactionInner tx_inner = TransactionUtil.getInner(tx);
                ArrayList<ByteString> tx_out_wire_lst;
                try {
                    tx_out_wire_lst = TransactionUtil.extractWireFormatTxOut(tx);
                } catch (ValidationException e) {
                    throw new RuntimeException(e);
                }
                int out_idx = 0;
                for (TransactionOutput tx_out : tx_inner.getOutputsList()) {
                    if (!cover_set.contains(tx_out.getTargetShard())) {
                        int ts = tx_out.getTargetShard();
                        if (!output_list_map.containsKey(ts)) {
                            output_list_map.put(ts, ImportedOutputList.newBuilder());
                        }
                        ImportedOutput io = ImportedOutput.newBuilder().setRawOutput(tx_out_wire_lst.get(out_idx)).setTxId(tx.getTxHash()).setOutIdx(out_idx).build();
                        output_list_map.get(ts).addTxOuts(io);
                    }
                    out_idx++;
                }
            }
            for (Map.Entry<Integer, ImportedOutputList.Builder> me : output_list_map.entrySet()) {
                ibb.putImportOutputs(me.getKey(), me.getValue().build());
            }
            ib = ibb.build();
        }
        try (TimeRecordAuto tra_cache = TimeRecord.openAuto("ShardUtxoImport.getImportBlock_cachesave")) {
            synchronized (cache) {
                cache.put(hash, ib);
            }
        }
        return ib;
    }
}