Examples with McElieceCCA2PublicKeyParameters org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PublicKeyParameters used on opensource projects

Example 1 with McElieceCCA2PublicKeyParameters

use of org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PublicKeyParameters in project jmulticard by ctt-gob-es.

the class SubjectPublicKeyInfoFactory method createSubjectPublicKeyInfo.

/**
 * Create a SubjectPublicKeyInfo public key.
 *
 * @param publicKey the key to be encoded into the info object.
 * @return a SubjectPublicKeyInfo representing the key.
 * @throws java.io.IOException on an error encoding the key
 */
public static SubjectPublicKeyInfo createSubjectPublicKeyInfo(AsymmetricKeyParameter publicKey) throws IOException {
    if (publicKey instanceof QTESLAPublicKeyParameters) {
        QTESLAPublicKeyParameters keyParams = (QTESLAPublicKeyParameters) publicKey;
        AlgorithmIdentifier algorithmIdentifier = Utils.qTeslaLookupAlgID(keyParams.getSecurityCategory());
        return new SubjectPublicKeyInfo(algorithmIdentifier, keyParams.getPublicData());
    } else if (publicKey instanceof SPHINCSPublicKeyParameters) {
        SPHINCSPublicKeyParameters params = (SPHINCSPublicKeyParameters) publicKey;
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.sphincs256, new SPHINCS256KeyParams(Utils.sphincs256LookupTreeAlgID(params.getTreeDigest())));
        return new SubjectPublicKeyInfo(algorithmIdentifier, params.getKeyData());
    } else if (publicKey instanceof NHPublicKeyParameters) {
        NHPublicKeyParameters params = (NHPublicKeyParameters) publicKey;
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.newHope);
        return new SubjectPublicKeyInfo(algorithmIdentifier, params.getPubData());
    } else if (publicKey instanceof LMSPublicKeyParameters) {
        LMSPublicKeyParameters params = (LMSPublicKeyParameters) publicKey;
        byte[] encoding = Composer.compose().u32str(1).bytes(params).build();
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PKCSObjectIdentifiers.id_alg_hss_lms_hashsig);
        return new SubjectPublicKeyInfo(algorithmIdentifier, new DEROctetString(encoding));
    } else if (publicKey instanceof HSSPublicKeyParameters) {
        HSSPublicKeyParameters params = (HSSPublicKeyParameters) publicKey;
        byte[] encoding = Composer.compose().u32str(params.getL()).bytes(params.getLMSPublicKey()).build();
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PKCSObjectIdentifiers.id_alg_hss_lms_hashsig);
        return new SubjectPublicKeyInfo(algorithmIdentifier, new DEROctetString(encoding));
    } else if (publicKey instanceof SPHINCSPlusPublicKeyParameters) {
        SPHINCSPlusPublicKeyParameters params = (SPHINCSPlusPublicKeyParameters) publicKey;
        byte[] encoding = params.getEncoded();
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(Utils.sphincsPlusOidLookup(params.getParameters()));
        return new SubjectPublicKeyInfo(algorithmIdentifier, new DEROctetString(encoding));
    } else if (publicKey instanceof CMCEPublicKeyParameters) {
        CMCEPublicKeyParameters params = (CMCEPublicKeyParameters) publicKey;
        byte[] encoding = params.getEncoded();
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(Utils.mcElieceOidLookup(params.getParameters()));
        // https://datatracker.ietf.org/doc/draft-uni-qsckeys/
        return new SubjectPublicKeyInfo(algorithmIdentifier, new CMCEPublicKey(encoding));
    } else if (publicKey instanceof XMSSPublicKeyParameters) {
        XMSSPublicKeyParameters keyParams = (XMSSPublicKeyParameters) publicKey;
        byte[] publicSeed = keyParams.getPublicSeed();
        byte[] root = keyParams.getRoot();
        byte[] keyEnc = keyParams.getEncoded();
        if (keyEnc.length > publicSeed.length + root.length) {
            AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(IsaraObjectIdentifiers.id_alg_xmss);
            return new SubjectPublicKeyInfo(algorithmIdentifier, new DEROctetString(keyEnc));
        } else {
            AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.xmss, new XMSSKeyParams(keyParams.getParameters().getHeight(), Utils.xmssLookupTreeAlgID(keyParams.getTreeDigest())));
            return new SubjectPublicKeyInfo(algorithmIdentifier, new XMSSPublicKey(publicSeed, root));
        }
    } else if (publicKey instanceof XMSSMTPublicKeyParameters) {
        XMSSMTPublicKeyParameters keyParams = (XMSSMTPublicKeyParameters) publicKey;
        byte[] publicSeed = keyParams.getPublicSeed();
        byte[] root = keyParams.getRoot();
        byte[] keyEnc = keyParams.getEncoded();
        if (keyEnc.length > publicSeed.length + root.length) {
            AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(IsaraObjectIdentifiers.id_alg_xmssmt);
            return new SubjectPublicKeyInfo(algorithmIdentifier, new DEROctetString(keyEnc));
        } else {
            AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.xmss_mt, new XMSSMTKeyParams(keyParams.getParameters().getHeight(), keyParams.getParameters().getLayers(), Utils.xmssLookupTreeAlgID(keyParams.getTreeDigest())));
            return new SubjectPublicKeyInfo(algorithmIdentifier, new XMSSMTPublicKey(keyParams.getPublicSeed(), keyParams.getRoot()));
        }
    } else if (publicKey instanceof McElieceCCA2PublicKeyParameters) {
        McElieceCCA2PublicKeyParameters pub = (McElieceCCA2PublicKeyParameters) publicKey;
        McElieceCCA2PublicKey mcEliecePub = new McElieceCCA2PublicKey(pub.getN(), pub.getT(), pub.getG(), Utils.getAlgorithmIdentifier(pub.getDigest()));
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(PQCObjectIdentifiers.mcElieceCca2);
        return new SubjectPublicKeyInfo(algorithmIdentifier, mcEliecePub);
    } else if (publicKey instanceof FrodoPublicKeyParameters) {
        FrodoPublicKeyParameters params = (FrodoPublicKeyParameters) publicKey;
        byte[] encoding = params.getEncoded();
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(Utils.frodoOidLookup(params.getParameters()));
        return new SubjectPublicKeyInfo(algorithmIdentifier, (new DEROctetString(encoding)));
    } else if (publicKey instanceof SABERPublicKeyParameters) {
        SABERPublicKeyParameters params = (SABERPublicKeyParameters) publicKey;
        byte[] encoding = params.getEncoded();
        AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier(Utils.saberOidLookup(params.getParameters()));
        // https://datatracker.ietf.org/doc/draft-uni-qsckeys/
        return new SubjectPublicKeyInfo(algorithmIdentifier, new DERSequence(new DEROctetString(encoding)));
    } else {
        throw new IOException("key parameters not recognized");
    }
}

Example 2 with McElieceCCA2PublicKeyParameters

use of org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PublicKeyParameters in project jmulticard by ctt-gob-es.

the class McElieceCCA2KeyFactorySpi method generatePublic.

public PublicKey generatePublic(SubjectPublicKeyInfo pki) throws IOException {
    // get the inner type inside the BIT STRING
    ASN1Primitive innerType = pki.parsePublicKey();
    McElieceCCA2PublicKey key = McElieceCCA2PublicKey.getInstance(innerType);
    return new BCMcElieceCCA2PublicKey(new McElieceCCA2PublicKeyParameters(key.getN(), key.getT(), key.getG(), Utils.getDigest(key.getDigest()).getAlgorithmName()));
}

Example 3 with McElieceCCA2PublicKeyParameters

use of org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2PublicKeyParameters in project jmulticard by ctt-gob-es.

the class McElieceCCA2KeyFactorySpi method engineGeneratePublic.

/**
 * Converts, if possible, a key specification into a
 * {@link BCMcElieceCCA2PublicKey}. Currently, the following key
 * specifications are supported:
 * {@link X509EncodedKeySpec}.
 *
 * @param keySpec the key specification
 * @return the McEliece CCA2 public key
 * @throws InvalidKeySpecException if the key specification is not supported.
 */
protected PublicKey engineGeneratePublic(KeySpec keySpec) throws InvalidKeySpecException {
    if (keySpec instanceof X509EncodedKeySpec) {
        // get the DER-encoded Key according to X.509 from the spec
        byte[] encKey = ((X509EncodedKeySpec) keySpec).getEncoded();
        // decode the SubjectPublicKeyInfo data structure to the pki object
        SubjectPublicKeyInfo pki;
        try {
            pki = SubjectPublicKeyInfo.getInstance(ASN1Primitive.fromByteArray(encKey));
        } catch (IOException e) {
            throw new InvalidKeySpecException(e.toString());
        }
        try {
            if (PQCObjectIdentifiers.mcElieceCca2.equals(pki.getAlgorithm().getAlgorithm())) {
                McElieceCCA2PublicKey key = McElieceCCA2PublicKey.getInstance(pki.parsePublicKey());
                return new BCMcElieceCCA2PublicKey(new McElieceCCA2PublicKeyParameters(key.getN(), key.getT(), key.getG(), Utils.getDigest(key.getDigest()).getAlgorithmName()));
            } else {
                throw new InvalidKeySpecException("Unable to recognise OID in McEliece private key");
            }
        } catch (IOException cce) {
            throw new InvalidKeySpecException("Unable to decode X509EncodedKeySpec: " + cce.getMessage());
        }
    }
    throw new InvalidKeySpecException("Unsupported key specification: " + keySpec.getClass() + ".");
}