Examples with McElieceCCA2PrivateKeyParameters org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PrivateKeyParameters used on opensource projects

Example 1 with McElieceCCA2PrivateKeyParameters

use of org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PrivateKeyParameters in project jmulticard by ctt-gob-es.

the class McElieceCCA2KeyFactorySpi method engineGeneratePrivate.

/**
 * Converts, if possible, a key specification into a
 * {@link BCMcElieceCCA2PrivateKey}. Currently, the following key
 * specifications are supported:
 * {@link PKCS8EncodedKeySpec}.
 *
 * @param keySpec the key specification
 * @return the McEliece CCA2 private key
 * @throws InvalidKeySpecException if the KeySpec is not supported.
 */
protected PrivateKey engineGeneratePrivate(KeySpec keySpec) throws InvalidKeySpecException {
    if (keySpec instanceof PKCS8EncodedKeySpec) {
        // get the DER-encoded Key according to PKCS#8 from the spec
        byte[] encKey = ((PKCS8EncodedKeySpec) keySpec).getEncoded();
        // decode the PKCS#8 data structure to the pki object
        PrivateKeyInfo pki;
        try {
            pki = PrivateKeyInfo.getInstance(ASN1Primitive.fromByteArray(encKey));
        } catch (IOException e) {
            throw new InvalidKeySpecException("Unable to decode PKCS8EncodedKeySpec: " + e);
        }
        try {
            if (PQCObjectIdentifiers.mcElieceCca2.equals(pki.getPrivateKeyAlgorithm().getAlgorithm())) {
                McElieceCCA2PrivateKey key = McElieceCCA2PrivateKey.getInstance(pki.parsePrivateKey());
                return new BCMcElieceCCA2PrivateKey(new McElieceCCA2PrivateKeyParameters(key.getN(), key.getK(), key.getField(), key.getGoppaPoly(), key.getP(), Utils.getDigest(key.getDigest()).getAlgorithmName()));
            } else {
                throw new InvalidKeySpecException("Unable to recognise OID in McEliece public key");
            }
        } catch (IOException cce) {
            throw new InvalidKeySpecException("Unable to decode PKCS8EncodedKeySpec.");
        }
    }
    throw new InvalidKeySpecException("Unsupported key specification: " + keySpec.getClass() + ".");
}

Example 2 with McElieceCCA2PrivateKeyParameters

use of org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PrivateKeyParameters in project jmulticard by ctt-gob-es.

the class McElieceCCA2KeyFactorySpi method generatePrivate.

public PrivateKey generatePrivate(PrivateKeyInfo pki) throws IOException {
    // get the inner type inside the BIT STRING
    ASN1Primitive innerType = pki.parsePrivateKey().toASN1Primitive();
    McElieceCCA2PrivateKey key = McElieceCCA2PrivateKey.getInstance(innerType);
    return new BCMcElieceCCA2PrivateKey(new McElieceCCA2PrivateKeyParameters(key.getN(), key.getK(), key.getField(), key.getGoppaPoly(), key.getP(), null));
}

Example 3 with McElieceCCA2PrivateKeyParameters

use of org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PrivateKeyParameters in project jmulticard by ctt-gob-es.

the class PrivateKeyFactory method createKey.

/**
 * Create a private key parameter from the passed in PKCS8 PrivateKeyInfo object.
 *
 * @param keyInfo the PrivateKeyInfo object containing the key material
 * @return a suitable private key parameter
 * @throws IOException on an error decoding the key
 */
public static AsymmetricKeyParameter createKey(final PrivateKeyInfo keyInfo) throws IOException {
    final AlgorithmIdentifier algId = keyInfo.getPrivateKeyAlgorithm();
    final ASN1ObjectIdentifier algOID = algId.getAlgorithm();
    if (algOID.on(BCObjectIdentifiers.qTESLA)) {
        final ASN1OctetString qTESLAPriv = ASN1OctetString.getInstance(keyInfo.parsePrivateKey());
        return new QTESLAPrivateKeyParameters(Utils.qTeslaLookupSecurityCategory(keyInfo.getPrivateKeyAlgorithm()), qTESLAPriv.getOctets());
    }
    if (algOID.equals(BCObjectIdentifiers.sphincs256)) {
        return new SPHINCSPrivateKeyParameters(ASN1OctetString.getInstance(keyInfo.parsePrivateKey()).getOctets(), Utils.sphincs256LookupTreeAlgName(SPHINCS256KeyParams.getInstance(keyInfo.getPrivateKeyAlgorithm().getParameters())));
    }
    if (algOID.equals(BCObjectIdentifiers.newHope)) {
        return new NHPrivateKeyParameters(convert(ASN1OctetString.getInstance(keyInfo.parsePrivateKey()).getOctets()));
    }
    if (algOID.equals(PKCSObjectIdentifiers.id_alg_hss_lms_hashsig)) {
        final byte[] keyEnc = ASN1OctetString.getInstance(keyInfo.parsePrivateKey()).getOctets();
        final ASN1BitString pubKey = keyInfo.getPublicKeyData();
        if (Pack.bigEndianToInt(keyEnc, 0) == 1) {
            if (pubKey != null) {
                final byte[] pubEnc = pubKey.getOctets();
                return LMSPrivateKeyParameters.getInstance(Arrays.copyOfRange(keyEnc, 4, keyEnc.length), Arrays.copyOfRange(pubEnc, 4, pubEnc.length));
            }
            return LMSPrivateKeyParameters.getInstance(Arrays.copyOfRange(keyEnc, 4, keyEnc.length));
        }
        if (pubKey != null) {
            final byte[] pubEnc = pubKey.getOctets();
            return HSSPrivateKeyParameters.getInstance(Arrays.copyOfRange(keyEnc, 4, keyEnc.length), pubEnc);
        }
        return HSSPrivateKeyParameters.getInstance(Arrays.copyOfRange(keyEnc, 4, keyEnc.length));
    }
    if (algOID.on(BCObjectIdentifiers.sphincsPlus)) {
        final byte[] keyEnc = ASN1OctetString.getInstance(keyInfo.parsePrivateKey()).getOctets();
        final SPHINCSPlusParameters spParams = SPHINCSPlusParameters.getParams(Integers.valueOf(Pack.bigEndianToInt(keyEnc, 0)));
        return new SPHINCSPlusPrivateKeyParameters(spParams, Arrays.copyOfRange(keyEnc, 4, keyEnc.length));
    }
    if (algOID.on(BCObjectIdentifiers.pqc_kem_mceliece)) {
        final CMCEPrivateKey cmceKey = CMCEPrivateKey.getInstance(keyInfo.parsePrivateKey());
        final CMCEParameters spParams = Utils.mcElieceParamsLookup(keyInfo.getPrivateKeyAlgorithm().getAlgorithm());
        return new CMCEPrivateKeyParameters(spParams, cmceKey.getDelta(), cmceKey.getC(), cmceKey.getG(), cmceKey.getAlpha(), cmceKey.getS());
    } else if (algOID.on(BCObjectIdentifiers.pqc_kem_frodo)) {
        final byte[] keyEnc = ASN1OctetString.getInstance(keyInfo.parsePrivateKey()).getOctets();
        final FrodoParameters spParams = Utils.frodoParamsLookup(keyInfo.getPrivateKeyAlgorithm().getAlgorithm());
        return new FrodoPrivateKeyParameters(spParams, keyEnc);
    } else if (algOID.on(BCObjectIdentifiers.pqc_kem_saber)) {
        final byte[] keyEnc = ASN1OctetString.getInstance(keyInfo.parsePrivateKey()).getOctets();
        final SABERParameters spParams = Utils.saberParamsLookup(keyInfo.getPrivateKeyAlgorithm().getAlgorithm());
        return new SABERPrivateKeyParameters(spParams, keyEnc);
    } else if (algOID.equals(BCObjectIdentifiers.xmss) || algOID.equals(PQCObjectIdentifiers.xmss_mt)) {
        // $NON-NLS-1$
        throw new IOException("Modificacion para JMultiCard");
    } else if (algOID.equals(PQCObjectIdentifiers.mcElieceCca2)) {
        final McElieceCCA2PrivateKey mKey = McElieceCCA2PrivateKey.getInstance(keyInfo.parsePrivateKey());
        return new McElieceCCA2PrivateKeyParameters(mKey.getN(), mKey.getK(), mKey.getField(), mKey.getGoppaPoly(), mKey.getP(), Utils.getDigestName(mKey.getDigest().getAlgorithm()));
    } else {
        // $NON-NLS-1$
        throw new RuntimeException("algorithm identifier in private key not recognised");
    }
}

Example 4 with McElieceCCA2PrivateKeyParameters

use of org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PrivateKeyParameters in project jmulticard by ctt-gob-es.

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 java.io.IOException on an error encoding the key
 */
public static PrivateKeyInfo createPrivateKeyInfo(final AsymmetricKeyParameter privateKey, final ASN1Set attributes) throws IOException {
    if (privateKey instanceof QTESLAPrivateKeyParameters) {
        final QTESLAPrivateKeyParameters keyParams = (QTESLAPrivateKeyParameters) privateKey;
        final AlgorithmIdentifier algorithmIdentifier = Utils.qTeslaLookupAlgID(keyParams.getSecurityCategory());
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(keyParams.getSecret()), attributes);
    }
    if (privateKey instanceof SPHINCSPrivateKeyParameters) {
        final SPHINCSPrivateKeyParameters params = (SPHINCSPrivateKeyParameters) privateKey;
        final AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.sphincs256, new SPHINCS256KeyParams(Utils.sphincs256LookupTreeAlgID(params.getTreeDigest())));
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(params.getKeyData()));
    }
    if (privateKey instanceof NHPrivateKeyParameters) {
        final NHPrivateKeyParameters params = (NHPrivateKeyParameters) privateKey;
        final AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.newHope);
        final short[] privateKeyData = params.getSecData();
        final 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));
    }
    if (privateKey instanceof LMSPrivateKeyParameters) {
        final LMSPrivateKeyParameters params = (LMSPrivateKeyParameters) privateKey;
        final byte[] encoding = Composer.compose().u32str(1).bytes(params).build();
        final byte[] pubEncoding = Composer.compose().u32str(1).bytes(params.getPublicKey()).build();
        final AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PKCSObjectIdentifiers.id_alg_hss_lms_hashsig);
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(encoding), attributes, pubEncoding);
    }
    if (privateKey instanceof HSSPrivateKeyParameters) {
        final HSSPrivateKeyParameters params = (HSSPrivateKeyParameters) privateKey;
        final byte[] encoding = Composer.compose().u32str(params.getL()).bytes(params).build();
        final byte[] pubEncoding = Composer.compose().u32str(params.getL()).bytes(params.getPublicKey().getLMSPublicKey()).build();
        final AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PKCSObjectIdentifiers.id_alg_hss_lms_hashsig);
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(encoding), attributes, pubEncoding);
    }
    if (privateKey instanceof SPHINCSPlusPrivateKeyParameters) {
        final SPHINCSPlusPrivateKeyParameters params = (SPHINCSPlusPrivateKeyParameters) privateKey;
        final byte[] encoding = params.getEncoded();
        final byte[] pubEncoding = params.getEncodedPublicKey();
        final AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(Utils.sphincsPlusOidLookup(params.getParameters()));
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(encoding), attributes, pubEncoding);
    }
    if (privateKey instanceof CMCEPrivateKeyParameters) {
        final CMCEPrivateKeyParameters params = (CMCEPrivateKeyParameters) privateKey;
        final byte[] encoding = params.getEncoded();
        // todo either make CMCEPrivateKey split the parameters from the private key or
        // (current) Make CMCEPrivateKey take parts of the private key splitted in the params
        final AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(Utils.mcElieceOidLookup(params.getParameters()));
        final CMCEPublicKey cmcePub = new CMCEPublicKey(params.reconstructPublicKey());
        final CMCEPrivateKey cmcePriv = new CMCEPrivateKey(0, params.getDelta(), params.getC(), params.getG(), params.getAlpha(), params.getS(), cmcePub);
        return new PrivateKeyInfo(algorithmIdentifier, cmcePriv, attributes);
    } else if (privateKey instanceof XMSSPrivateKeyParameters || privateKey instanceof XMSSMTPrivateKeyParameters) {
        // $NON-NLS-1$
        throw new IOException("Modificacion para JMultiCard");
    } else if (privateKey instanceof McElieceCCA2PrivateKeyParameters) {
        final McElieceCCA2PrivateKeyParameters priv = (McElieceCCA2PrivateKeyParameters) privateKey;
        final McElieceCCA2PrivateKey mcEliecePriv = new McElieceCCA2PrivateKey(priv.getN(), priv.getK(), priv.getField(), priv.getGoppaPoly(), priv.getP(), Utils.getAlgorithmIdentifier(priv.getDigest()));
        final AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.mcElieceCca2);
        return new PrivateKeyInfo(algorithmIdentifier, mcEliecePriv);
    } else if (privateKey instanceof FrodoPrivateKeyParameters) {
        final FrodoPrivateKeyParameters params = (FrodoPrivateKeyParameters) privateKey;
        final byte[] encoding = params.getEncoded();
        final AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(Utils.frodoOidLookup(params.getParameters()));
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(encoding), attributes);
    } else if (privateKey instanceof SABERPrivateKeyParameters) {
        final SABERPrivateKeyParameters params = (SABERPrivateKeyParameters) privateKey;
        final byte[] encoding = params.getEncoded();
        final AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(Utils.saberOidLookup(params.getParameters()));
        return new PrivateKeyInfo(algorithmIdentifier, new DEROctetString(encoding), attributes);
    } else {
        // $NON-NLS-1$
        throw new IOException("key parameters not recognized");
    }
}