Examples with XMSSPrivateKeyParameters com.github.zhenwei.core.pqc.crypto.xmss.XMSSPrivateKeyParameters used on opensource projects

Example 1 with XMSSPrivateKeyParameters

use of com.github.zhenwei.core.pqc.crypto.xmss.XMSSPrivateKeyParameters in project LinLong-Java by zhenwei1108.

the class PrivateKeyInfoFactory method createPrivateKeyInfo.

/**
 * Create a PrivateKeyInfo representation of a private key with attributes.
 *
 * @param privateKey the key to be encoded into the info object.
 * @param attributes the set of attributes to be included.
 * @return the appropriate PrivateKeyInfo
 * @throws IOException on an error encoding the key
 */
public static PrivateKeyInfo createPrivateKeyInfo(AsymmetricKeyParameter privateKey, ASN1Set attributes) throws IOException {
    if (privateKey instanceof QTESLAPrivateKeyParameters) {
        QTESLAPrivateKeyParameters keyParams = (QTESLAPrivateKeyParameters) privateKey;
        AlgorithmIdentifier algorithmIdentifier = Utils.qTeslaLookupAlgID(keyParams.getSecurityCategory());
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(keyParams.getSecret()), attributes);
    } else if (privateKey instanceof SPHINCSPrivateKeyParameters) {
        SPHINCSPrivateKeyParameters params = (SPHINCSPrivateKeyParameters) privateKey;
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.sphincs256, new SPHINCS256KeyParams(Utils.sphincs256LookupTreeAlgID(params.getTreeDigest())));
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(params.getKeyData()));
    } else if (privateKey instanceof NHPrivateKeyParameters) {
        NHPrivateKeyParameters params = (NHPrivateKeyParameters) privateKey;
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.newHope);
        short[] privateKeyData = params.getSecData();
        byte[] octets = new byte[privateKeyData.length * 2];
        for (int i = 0; i != privateKeyData.length; i++) {
            Pack.shortToLittleEndian(privateKeyData[i], octets, i * 2);
        }
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(octets));
    } else if (privateKey instanceof LMSPrivateKeyParameters) {
        LMSPrivateKeyParameters params = (LMSPrivateKeyParameters) privateKey;
        byte[] encoding = Composer.compose().u32str(1).bytes(params).build();
        byte[] pubEncoding = Composer.compose().u32str(1).bytes(params.getPublicKey()).build();
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PKCSObjectIdentifiers.id_alg_hss_lms_hashsig);
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(encoding), attributes, pubEncoding);
    } else if (privateKey instanceof HSSPrivateKeyParameters) {
        HSSPrivateKeyParameters params = (HSSPrivateKeyParameters) privateKey;
        byte[] encoding = Composer.compose().u32str(params.getL()).bytes(params).build();
        byte[] pubEncoding = Composer.compose().u32str(params.getL()).bytes(params.getPublicKey().getLMSPublicKey()).build();
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PKCSObjectIdentifiers.id_alg_hss_lms_hashsig);
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(encoding), attributes, pubEncoding);
    } else if (privateKey instanceof XMSSPrivateKeyParameters) {
        XMSSPrivateKeyParameters keyParams = (XMSSPrivateKeyParameters) privateKey;
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.xmss, new XMSSKeyParams(keyParams.getParameters().getHeight(), Utils.xmssLookupTreeAlgID(keyParams.getTreeDigest())));
        return new PrivateKeyInfo(algorithmIdentifier, xmssCreateKeyStructure(keyParams), attributes);
    } else if (privateKey instanceof XMSSMTPrivateKeyParameters) {
        XMSSMTPrivateKeyParameters keyParams = (XMSSMTPrivateKeyParameters) privateKey;
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.xmss_mt, new XMSSMTKeyParams(keyParams.getParameters().getHeight(), keyParams.getParameters().getLayers(), Utils.xmssLookupTreeAlgID(keyParams.getTreeDigest())));
        return new PrivateKeyInfo(algorithmIdentifier, xmssmtCreateKeyStructure(keyParams), attributes);
    } else if (privateKey instanceof McElieceCCA2PrivateKeyParameters) {
        McElieceCCA2PrivateKeyParameters priv = (McElieceCCA2PrivateKeyParameters) privateKey;
        McElieceCCA2PrivateKey mcEliecePriv = new McElieceCCA2PrivateKey(priv.getN(), priv.getK(), priv.getField(), priv.getGoppaPoly(), priv.getP(), Utils.getAlgorithmIdentifier(priv.getDigest()));
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.mcElieceCca2);
        return new PrivateKeyInfo(algorithmIdentifier, mcEliecePriv);
    } else {
        throw new IOException("key parameters not recognized");
    }
}

Example 2 with XMSSPrivateKeyParameters

use of com.github.zhenwei.core.pqc.crypto.xmss.XMSSPrivateKeyParameters in project LinLong-Java by zhenwei1108.

the class XMSSKeyPairGeneratorSpi method generateKeyPair.

public KeyPair generateKeyPair() {
    if (!initialised) {
        param = new XMSSKeyGenerationParameters(new XMSSParameters(10, new SHA512Digest()), random);
        engine.init(param);
        initialised = true;
    }
    AsymmetricCipherKeyPair pair = engine.generateKeyPair();
    XMSSPublicKeyParameters pub = (XMSSPublicKeyParameters) pair.getPublic();
    XMSSPrivateKeyParameters priv = (XMSSPrivateKeyParameters) pair.getPrivate();
    return new KeyPair(new BCXMSSPublicKey(treeDigest, pub), new BCXMSSPrivateKey(treeDigest, priv));
}