Examples with SignedMessage snowblossom.proto.SignedMessage used on opensource projects

Example 1 with SignedMessage

use of snowblossom.proto.SignedMessage in project snowblossom by snowblossomcoin.

the class CertGen method generateSelfSignedCert.

/**
 * @param key_pair Key pair to use to sign the cert inner signed message, the node key
 * @param tls_wkp The temporary key to use just for this cert and TLS sessions
 * @param spec Address for 'key_pair'
 */
public static X509Certificate generateSelfSignedCert(WalletKeyPair key_pair, WalletKeyPair tls_wkp, AddressSpec spec) throws Exception {
    AddressSpecHash address_hash = AddressUtil.getHashForSpec(spec);
    String address = AddressUtil.getAddressString(Globals.NODE_ADDRESS_STRING, address_hash);
    byte[] encoded_pub = tls_wkp.getPublicKey().toByteArray();
    SubjectPublicKeyInfo subjectPublicKeyInfo = new SubjectPublicKeyInfo(ASN1Sequence.getInstance(encoded_pub));
    String dn = String.format("CN=%s, O=Snowblossom", address);
    X500Name issuer = new X500Name(dn);
    BigInteger serial = BigInteger.valueOf(System.currentTimeMillis());
    Date notBefore = new Date(System.currentTimeMillis());
    Date notAfter = new Date(System.currentTimeMillis() + 86400000L * 365L * 10L);
    X500Name subject = issuer;
    X509v3CertificateBuilder cert_builder = new X509v3CertificateBuilder(issuer, serial, notBefore, notAfter, subject, subjectPublicKeyInfo);
    // System.out.println(org.bouncycastle.asn1.x509.Extension.subjectAlternativeName);
    ASN1ObjectIdentifier snow_claim_oid = new ASN1ObjectIdentifier("2.5.29.134");
    // System.out.println(spec);
    SignedMessagePayload payload = SignedMessagePayload.newBuilder().setTlsPublicKey(tls_wkp.getPublicKey()).build();
    SignedMessage sm = MsgSigUtil.signMessage(spec, key_pair, payload);
    byte[] sm_data = sm.toByteString().toByteArray();
    cert_builder.addExtension(snow_claim_oid, true, sm_data);
    String algorithm = "SHA256withRSA";
    AsymmetricKeyParameter privateKeyAsymKeyParam = PrivateKeyFactory.createKey(tls_wkp.getPrivateKey().toByteArray());
    AlgorithmIdentifier sigAlgId = new DefaultSignatureAlgorithmIdentifierFinder().find(algorithm);
    AlgorithmIdentifier digAlgId = new DefaultDigestAlgorithmIdentifierFinder().find(sigAlgId);
    // ContentSigner sigGen = new BcECContentSignerBuilder(sigAlgId, digAlgId).build(privateKeyAsymKeyParam);
    ContentSigner sigGen = new BcRSAContentSignerBuilder(sigAlgId, digAlgId).build(privateKeyAsymKeyParam);
    X509CertificateHolder certificateHolder = cert_builder.build(sigGen);
    X509Certificate cert = new JcaX509CertificateConverter().setProvider("BC").getCertificate(certificateHolder);
    return cert;
}

Example 2 with SignedMessage

use of snowblossom.proto.SignedMessage 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();
}