Examples with Ed25519PrivateKeyParameters com.github.zhenwei.core.crypto.params.Ed25519PrivateKeyParameters used on opensource projects

Example 1 with Ed25519PrivateKeyParameters

use of com.github.zhenwei.core.crypto.params.Ed25519PrivateKeyParameters 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 RSAKeyParameters) {
        RSAPrivateCrtKeyParameters priv = (RSAPrivateCrtKeyParameters) privateKey;
        return new PrivateKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, DERNull.INSTANCE), new RSAPrivateKey(priv.getModulus(), priv.getPublicExponent(), priv.getExponent(), priv.getP(), priv.getQ(), priv.getDP(), priv.getDQ(), priv.getQInv()), attributes);
    } else if (privateKey instanceof DSAPrivateKeyParameters) {
        DSAPrivateKeyParameters priv = (DSAPrivateKeyParameters) privateKey;
        DSAParameters params = priv.getParameters();
        return new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_dsa, new DSAParameter(params.getP(), params.getQ(), params.getG())), new ASN1Integer(priv.getX()), attributes);
    } else if (privateKey instanceof ECPrivateKeyParameters) {
        ECPrivateKeyParameters priv = (ECPrivateKeyParameters) privateKey;
        ECDomainParameters domainParams = priv.getParameters();
        ASN1Encodable params;
        int orderBitLength;
        if (domainParams == null) {
            // Implicitly CA
            params = new X962Parameters(DERNull.INSTANCE);
            orderBitLength = priv.getD().bitLength();
        } else if (domainParams instanceof ECGOST3410Parameters) {
            GOST3410PublicKeyAlgParameters gostParams = new GOST3410PublicKeyAlgParameters(((ECGOST3410Parameters) domainParams).getPublicKeyParamSet(), ((ECGOST3410Parameters) domainParams).getDigestParamSet(), ((ECGOST3410Parameters) domainParams).getEncryptionParamSet());
            int size;
            ASN1ObjectIdentifier identifier;
            if (cryptoProOids.contains(gostParams.getPublicKeyParamSet())) {
                size = 32;
                identifier = CryptoProObjectIdentifiers.gostR3410_2001;
            } else {
                boolean is512 = priv.getD().bitLength() > 256;
                identifier = (is512) ? RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512 : RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256;
                size = (is512) ? 64 : 32;
            }
            byte[] encKey = new byte[size];
            extractBytes(encKey, size, 0, priv.getD());
            return new PrivateKeyInfo(new AlgorithmIdentifier(identifier, gostParams), new DEROctetString(encKey));
        } else if (domainParams instanceof ECNamedDomainParameters) {
            params = new X962Parameters(((ECNamedDomainParameters) domainParams).getName());
            orderBitLength = domainParams.getN().bitLength();
        } else {
            X9ECParameters ecP = new X9ECParameters(domainParams.getCurve(), new X9ECPoint(domainParams.getG(), false), domainParams.getN(), domainParams.getH(), domainParams.getSeed());
            params = new X962Parameters(ecP);
            orderBitLength = domainParams.getN().bitLength();
        }
        ECPoint q = new FixedPointCombMultiplier().multiply(domainParams.getG(), priv.getD());
        // TODO Support point compression
        DERBitString publicKey = new DERBitString(q.getEncoded(false));
        return new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), new ECPrivateKey(orderBitLength, priv.getD(), publicKey, params), attributes);
    } else if (privateKey instanceof X448PrivateKeyParameters) {
        X448PrivateKeyParameters key = (X448PrivateKeyParameters) privateKey;
        return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X448), new DEROctetString(key.getEncoded()), attributes, key.generatePublicKey().getEncoded());
    } else if (privateKey instanceof X25519PrivateKeyParameters) {
        X25519PrivateKeyParameters key = (X25519PrivateKeyParameters) privateKey;
        return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X25519), new DEROctetString(key.getEncoded()), attributes, key.generatePublicKey().getEncoded());
    } else if (privateKey instanceof Ed448PrivateKeyParameters) {
        Ed448PrivateKeyParameters key = (Ed448PrivateKeyParameters) privateKey;
        return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_Ed448), new DEROctetString(key.getEncoded()), attributes, key.generatePublicKey().getEncoded());
    } else if (privateKey instanceof Ed25519PrivateKeyParameters) {
        Ed25519PrivateKeyParameters key = (Ed25519PrivateKeyParameters) privateKey;
        return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_Ed25519), new DEROctetString(key.getEncoded()), attributes, key.generatePublicKey().getEncoded());
    } else {
        throw new IOException("key parameters not recognized");
    }
}

Example 2 with Ed25519PrivateKeyParameters

use of com.github.zhenwei.core.crypto.params.Ed25519PrivateKeyParameters in project LinLong-Java by zhenwei1108.

the class Ed25519KeyPairGenerator method generateKeyPair.

public AsymmetricCipherKeyPair generateKeyPair() {
    Ed25519PrivateKeyParameters privateKey = new Ed25519PrivateKeyParameters(random);
    Ed25519PublicKeyParameters publicKey = privateKey.generatePublicKey();
    return new AsymmetricCipherKeyPair(publicKey, privateKey);
}

Example 3 with Ed25519PrivateKeyParameters

use of com.github.zhenwei.core.crypto.params.Ed25519PrivateKeyParameters in project LinLong-Java by zhenwei1108.

the class KeyFactorySpi method engineGetKeySpec.

protected KeySpec engineGetKeySpec(Key key, Class spec) throws InvalidKeySpecException {
    if (spec.isAssignableFrom(OpenSSHPrivateKeySpec.class) && key instanceof BCEdDSAPrivateKey) {
        try {
            // 
            // The DEROctetString at element 2 is an encoded DEROctetString with the private key value
            // within it.
            // 
            ASN1Sequence seq = ASN1Sequence.getInstance(key.getEncoded());
            ASN1OctetString val = ASN1OctetString.getInstance(seq.getObjectAt(2));
            byte[] encoding = ASN1OctetString.getInstance(ASN1Primitive.fromByteArray(val.getOctets())).getOctets();
            return new OpenSSHPrivateKeySpec(OpenSSHPrivateKeyUtil.encodePrivateKey(new Ed25519PrivateKeyParameters(encoding)));
        } catch (IOException ex) {
            throw new InvalidKeySpecException(ex.getMessage(), ex.getCause());
        }
    } else if (spec.isAssignableFrom(OpenSSHPublicKeySpec.class) && key instanceof BCEdDSAPublicKey) {
        try {
            byte[] encoding = key.getEncoded();
            if (!Arrays.areEqual(Ed25519Prefix, 0, Ed25519Prefix.length, encoding, 0, encoding.length - Ed25519PublicKeyParameters.KEY_SIZE)) {
                throw new InvalidKeySpecException("Invalid Ed25519 public key encoding");
            }
            Ed25519PublicKeyParameters publicKey = new Ed25519PublicKeyParameters(encoding, Ed25519Prefix.length);
            return new OpenSSHPublicKeySpec(OpenSSHPublicKeyUtil.encodePublicKey(publicKey));
        } catch (IOException ex) {
            throw new InvalidKeySpecException(ex.getMessage(), ex.getCause());
        }
    } else if (spec.isAssignableFrom(RawEncodedKeySpec.class)) {
        if (key instanceof XDHPublicKey) {
            return new RawEncodedKeySpec(((XDHPublicKey) key).getUEncoding());
        }
        if (key instanceof EdDSAPublicKey) {
            return new RawEncodedKeySpec(((EdDSAPublicKey) key).getPointEncoding());
        }
    }
    return super.engineGetKeySpec(key, spec);
}

Example 4 with Ed25519PrivateKeyParameters

use of com.github.zhenwei.core.crypto.params.Ed25519PrivateKeyParameters in project LinLong-Java by zhenwei1108.

the class SignatureSpi method engineInitSign.

protected void engineInitSign(PrivateKey privateKey) throws InvalidKeyException {
    AsymmetricKeyParameter priv = getLwEdDSAKeyPrivate(privateKey);
    if (priv instanceof Ed25519PrivateKeyParameters) {
        signer = getSigner("Ed25519");
    } else if (priv instanceof Ed448PrivateKeyParameters) {
        signer = getSigner("Ed448");
    } else {
        throw new IllegalStateException("unsupported private key type");
    }
    signer.init(true, priv);
}

Example 5 with Ed25519PrivateKeyParameters

use of com.github.zhenwei.core.crypto.params.Ed25519PrivateKeyParameters in project LinLong-Java by zhenwei1108.

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(PrivateKeyInfo keyInfo) throws IOException {
    AlgorithmIdentifier algId = keyInfo.getPrivateKeyAlgorithm();
    ASN1ObjectIdentifier algOID = algId.getAlgorithm();
    if (algOID.equals(PKCSObjectIdentifiers.rsaEncryption) || algOID.equals(PKCSObjectIdentifiers.id_RSASSA_PSS) || algOID.equals(X509ObjectIdentifiers.id_ea_rsa)) {
        RSAPrivateKey keyStructure = RSAPrivateKey.getInstance(keyInfo.parsePrivateKey());
        return new RSAPrivateCrtKeyParameters(keyStructure.getModulus(), keyStructure.getPublicExponent(), keyStructure.getPrivateExponent(), keyStructure.getPrime1(), keyStructure.getPrime2(), keyStructure.getExponent1(), keyStructure.getExponent2(), keyStructure.getCoefficient());
    } else // else if (algOID.equals(X9ObjectIdentifiers.dhpublicnumber))
    if (algOID.equals(PKCSObjectIdentifiers.dhKeyAgreement)) {
        DHParameter params = DHParameter.getInstance(algId.getParameters());
        ASN1Integer derX = (ASN1Integer) keyInfo.parsePrivateKey();
        BigInteger lVal = params.getL();
        int l = lVal == null ? 0 : lVal.intValue();
        DHParameters dhParams = new DHParameters(params.getP(), params.getG(), null, l);
        return new DHPrivateKeyParameters(derX.getValue(), dhParams);
    } else if (algOID.equals(OIWObjectIdentifiers.elGamalAlgorithm)) {
        ElGamalParameter params = ElGamalParameter.getInstance(algId.getParameters());
        ASN1Integer derX = (ASN1Integer) keyInfo.parsePrivateKey();
        return new ElGamalPrivateKeyParameters(derX.getValue(), new ElGamalParameters(params.getP(), params.getG()));
    } else if (algOID.equals(X9ObjectIdentifiers.id_dsa)) {
        ASN1Integer derX = (ASN1Integer) keyInfo.parsePrivateKey();
        ASN1Encodable algParameters = algId.getParameters();
        DSAParameters parameters = null;
        if (algParameters != null) {
            DSAParameter params = DSAParameter.getInstance(algParameters.toASN1Primitive());
            parameters = new DSAParameters(params.getP(), params.getQ(), params.getG());
        }
        return new DSAPrivateKeyParameters(derX.getValue(), parameters);
    } else if (algOID.equals(X9ObjectIdentifiers.id_ecPublicKey)) {
        X962Parameters params = X962Parameters.getInstance(algId.getParameters());
        X9ECParameters x9;
        ECDomainParameters dParams;
        if (params.isNamedCurve()) {
            ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) params.getParameters();
            x9 = CustomNamedCurves.getByOID(oid);
            if (x9 == null) {
                x9 = ECNamedCurveTable.getByOID(oid);
            }
            dParams = new ECNamedDomainParameters(oid, x9);
        } else {
            x9 = X9ECParameters.getInstance(params.getParameters());
            dParams = new ECDomainParameters(x9.getCurve(), x9.getG(), x9.getN(), x9.getH(), x9.getSeed());
        }
        ECPrivateKey ec = ECPrivateKey.getInstance(keyInfo.parsePrivateKey());
        BigInteger d = ec.getKey();
        return new ECPrivateKeyParameters(d, dParams);
    } else if (algOID.equals(EdECObjectIdentifiers.id_X25519)) {
        return new X25519PrivateKeyParameters(getRawKey(keyInfo));
    } else if (algOID.equals(EdECObjectIdentifiers.id_X448)) {
        return new X448PrivateKeyParameters(getRawKey(keyInfo));
    } else if (algOID.equals(EdECObjectIdentifiers.id_Ed25519)) {
        return new Ed25519PrivateKeyParameters(getRawKey(keyInfo));
    } else if (algOID.equals(EdECObjectIdentifiers.id_Ed448)) {
        return new Ed448PrivateKeyParameters(getRawKey(keyInfo));
    } else if (algOID.equals(CryptoProObjectIdentifiers.gostR3410_2001) || algOID.equals(RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512) || algOID.equals(RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256)) {
        ASN1Encodable algParameters = algId.getParameters();
        GOST3410PublicKeyAlgParameters gostParams = GOST3410PublicKeyAlgParameters.getInstance(algParameters);
        ECGOST3410Parameters ecSpec = null;
        BigInteger d = null;
        ASN1Primitive p = algParameters.toASN1Primitive();
        if (p instanceof ASN1Sequence && (ASN1Sequence.getInstance(p).size() == 2 || ASN1Sequence.getInstance(p).size() == 3)) {
            X9ECParameters ecP = ECGOST3410NamedCurves.getByOIDX9(gostParams.getPublicKeyParamSet());
            ecSpec = new ECGOST3410Parameters(new ECNamedDomainParameters(gostParams.getPublicKeyParamSet(), ecP), gostParams.getPublicKeyParamSet(), gostParams.getDigestParamSet(), gostParams.getEncryptionParamSet());
            ASN1OctetString privEnc = keyInfo.getPrivateKey();
            if (privEnc.getOctets().length == 32 || privEnc.getOctets().length == 64) {
                d = new BigInteger(1, Arrays.reverse(privEnc.getOctets()));
            } else {
                ASN1Encodable privKey = keyInfo.parsePrivateKey();
                if (privKey instanceof ASN1Integer) {
                    d = ASN1Integer.getInstance(privKey).getPositiveValue();
                } else {
                    byte[] dVal = Arrays.reverse(ASN1OctetString.getInstance(privKey).getOctets());
                    d = new BigInteger(1, dVal);
                }
            }
        } else {
            X962Parameters params = X962Parameters.getInstance(algId.getParameters());
            if (params.isNamedCurve()) {
                ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(params.getParameters());
                X9ECParameters ecP = ECNamedCurveTable.getByOID(oid);
                ecSpec = new ECGOST3410Parameters(new ECNamedDomainParameters(oid, ecP), gostParams.getPublicKeyParamSet(), gostParams.getDigestParamSet(), gostParams.getEncryptionParamSet());
            } else if (params.isImplicitlyCA()) {
                ecSpec = null;
            } else {
                X9ECParameters ecP = X9ECParameters.getInstance(params.getParameters());
                ecSpec = new ECGOST3410Parameters(new ECNamedDomainParameters(algOID, ecP), gostParams.getPublicKeyParamSet(), gostParams.getDigestParamSet(), gostParams.getEncryptionParamSet());
            }
            ASN1Encodable privKey = keyInfo.parsePrivateKey();
            if (privKey instanceof ASN1Integer) {
                ASN1Integer derD = ASN1Integer.getInstance(privKey);
                d = derD.getValue();
            } else {
                ECPrivateKey ec = ECPrivateKey.getInstance(privKey);
                d = ec.getKey();
            }
        }
        return new ECPrivateKeyParameters(d, new ECGOST3410Parameters(ecSpec, gostParams.getPublicKeyParamSet(), gostParams.getDigestParamSet(), gostParams.getEncryptionParamSet()));
    } else {
        throw new RuntimeException("algorithm identifier in private key not recognised");
    }
}