Search in sources :

Example 6 with X9ECParameters

use of org.spongycastle.asn1.x9.X9ECParameters in project robovm by robovm.

the class BCECPublicKey method getEncoded.

public byte[] getEncoded() {
    ASN1Encodable params;
    SubjectPublicKeyInfo info;
    if (ecSpec instanceof ECNamedCurveSpec) {
        ASN1ObjectIdentifier curveOid = ECUtil.getNamedCurveOid(((ECNamedCurveSpec) ecSpec).getName());
        if (curveOid == null) {
            curveOid = new ASN1ObjectIdentifier(((ECNamedCurveSpec) ecSpec).getName());
        }
        params = new X962Parameters(curveOid);
    } else if (ecSpec == null) {
        params = new X962Parameters(DERNull.INSTANCE);
    } else {
        ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
        X9ECParameters ecP = new X9ECParameters(curve, EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression), ecSpec.getOrder(), BigInteger.valueOf(ecSpec.getCofactor()), ecSpec.getCurve().getSeed());
        params = new X962Parameters(ecP);
    }
    ECCurve curve = this.engineGetQ().getCurve();
    ASN1OctetString p = (ASN1OctetString) new X9ECPoint(curve.createPoint(this.getQ().getX().toBigInteger(), this.getQ().getY().toBigInteger(), withCompression)).toASN1Primitive();
    info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), p.getOctets());
    return KeyUtil.getEncodedSubjectPublicKeyInfo(info);
}
Also used : X962Parameters(org.bouncycastle.asn1.x9.X962Parameters) ASN1OctetString(org.bouncycastle.asn1.ASN1OctetString) X9ECParameters(org.bouncycastle.asn1.x9.X9ECParameters) X9ECPoint(org.bouncycastle.asn1.x9.X9ECPoint) ECCurve(org.bouncycastle.math.ec.ECCurve) ASN1Encodable(org.bouncycastle.asn1.ASN1Encodable) SubjectPublicKeyInfo(org.bouncycastle.asn1.x509.SubjectPublicKeyInfo) ASN1ObjectIdentifier(org.bouncycastle.asn1.ASN1ObjectIdentifier) ECNamedCurveSpec(org.bouncycastle.jce.spec.ECNamedCurveSpec) AlgorithmIdentifier(org.bouncycastle.asn1.x509.AlgorithmIdentifier)

Example 7 with X9ECParameters

use of org.spongycastle.asn1.x9.X9ECParameters in project robovm by robovm.

the class JCEECPrivateKey method populateFromPrivKeyInfo.

private void populateFromPrivKeyInfo(PrivateKeyInfo info) throws IOException {
    X962Parameters params = new X962Parameters((ASN1Primitive) info.getPrivateKeyAlgorithm().getParameters());
    if (params.isNamedCurve()) {
        ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(params.getParameters());
        X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
        // BEGIN android-removed
        // if (ecP == null) // GOST Curve
        // {
        //     ECDomainParameters gParam = ECGOST3410NamedCurves.getByOID(oid);
        //     EllipticCurve ellipticCurve = EC5Util.convertCurve(gParam.getCurve(), gParam.getSeed());
        //
        //     ecSpec = new ECNamedCurveSpec(
        //             ECGOST3410NamedCurves.getName(oid),
        //             ellipticCurve,
        //             new ECPoint(
        //                     gParam.getG().getX().toBigInteger(),
        //                     gParam.getG().getY().toBigInteger()),
        //             gParam.getN(),
        //             gParam.getH());
        // }
        // else
        // END android-removed
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());
            ecSpec = new ECNamedCurveSpec(ECUtil.getCurveName(oid), ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH());
        }
    } else if (params.isImplicitlyCA()) {
        ecSpec = null;
    } else {
        X9ECParameters ecP = X9ECParameters.getInstance(params.getParameters());
        EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());
        this.ecSpec = new ECParameterSpec(ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH().intValue());
    }
    ASN1Encodable privKey = info.parsePrivateKey();
    if (privKey instanceof DERInteger) {
        DERInteger derD = DERInteger.getInstance(privKey);
        this.d = derD.getValue();
    } else {
        ECPrivateKeyStructure ec = new ECPrivateKeyStructure((ASN1Sequence) privKey);
        this.d = ec.getKey();
        this.publicKey = ec.getPublicKey();
    }
}
Also used : X962Parameters(org.bouncycastle.asn1.x9.X962Parameters) X9ECParameters(org.bouncycastle.asn1.x9.X9ECParameters) EllipticCurve(java.security.spec.EllipticCurve) ECParameterSpec(java.security.spec.ECParameterSpec) ASN1Encodable(org.bouncycastle.asn1.ASN1Encodable) ECPrivateKeyStructure(org.bouncycastle.asn1.sec.ECPrivateKeyStructure) ECPoint(java.security.spec.ECPoint) ASN1ObjectIdentifier(org.bouncycastle.asn1.ASN1ObjectIdentifier) ECNamedCurveSpec(org.bouncycastle.jce.spec.ECNamedCurveSpec) DERInteger(org.bouncycastle.asn1.DERInteger)

Example 8 with X9ECParameters

use of org.spongycastle.asn1.x9.X9ECParameters in project athenz by yahoo.

the class Crypto method loadPrivateKey.

public static PrivateKey loadPrivateKey(Reader reader, String pwd) throws CryptoException {
    try (PEMParser pemReader = new PEMParser(reader)) {
        PrivateKey privKey = null;
        X9ECParameters ecParam = null;
        Object pemObj = pemReader.readObject();
        if (pemObj instanceof ASN1ObjectIdentifier) {
            // make sure this is EC Parameter we're handling. In which case
            // we'll store it and read the next object which should be our
            // EC Private Key
            ASN1ObjectIdentifier ecOID = (ASN1ObjectIdentifier) pemObj;
            ecParam = ECNamedCurveTable.getByOID(ecOID);
            if (ecParam == null) {
                throw new PEMException("Unable to find EC Parameter for the given curve oid: " + ((ASN1ObjectIdentifier) pemObj).getId());
            }
            pemObj = pemReader.readObject();
        } else if (pemObj instanceof X9ECParameters) {
            ecParam = (X9ECParameters) pemObj;
            pemObj = pemReader.readObject();
        }
        if (pemObj instanceof PEMKeyPair) {
            PrivateKeyInfo pKeyInfo = ((PEMKeyPair) pemObj).getPrivateKeyInfo();
            JcaPEMKeyConverter pemConverter = new JcaPEMKeyConverter();
            privKey = pemConverter.getPrivateKey(pKeyInfo);
        } else if (pemObj instanceof PKCS8EncryptedPrivateKeyInfo) {
            PKCS8EncryptedPrivateKeyInfo pKeyInfo = (PKCS8EncryptedPrivateKeyInfo) pemObj;
            if (pwd == null) {
                throw new CryptoException("No password specified to decrypt encrypted private key");
            }
            // Decrypt the private key with the specified password
            InputDecryptorProvider pkcs8Prov = new JceOpenSSLPKCS8DecryptorProviderBuilder().setProvider(BC_PROVIDER).build(pwd.toCharArray());
            PrivateKeyInfo privateKeyInfo = pKeyInfo.decryptPrivateKeyInfo(pkcs8Prov);
            JcaPEMKeyConverter pemConverter = new JcaPEMKeyConverter();
            privKey = pemConverter.getPrivateKey(privateKeyInfo);
        }
        if (ecParam != null && ECDSA.equals(privKey.getAlgorithm())) {
            ECParameterSpec ecSpec = new ECParameterSpec(ecParam.getCurve(), ecParam.getG(), ecParam.getN(), ecParam.getH(), ecParam.getSeed());
            KeyFactory keyFactory = KeyFactory.getInstance(ECDSA, BC_PROVIDER);
            ECPrivateKeySpec keySpec = new ECPrivateKeySpec(((BCECPrivateKey) privKey).getS(), ecSpec);
            privKey = (PrivateKey) keyFactory.generatePrivate(keySpec);
        }
        return privKey;
    } catch (PEMException e) {
        LOG.error("loadPrivateKey: Caught PEMException, problem with format of key detected.");
        throw new CryptoException(e);
    } catch (NoSuchProviderException e) {
        LOG.error("loadPrivateKey: Caught NoSuchProviderException, check to make sure the provider is loaded correctly.");
        throw new CryptoException(e);
    } catch (NoSuchAlgorithmException e) {
        LOG.error("loadPrivateKey: Caught NoSuchAlgorithmException, check to make sure the algorithm is supported by the provider.");
        throw new CryptoException(e);
    } catch (InvalidKeySpecException e) {
        LOG.error("loadPrivateKey: Caught InvalidKeySpecException, invalid key spec is being used.");
        throw new CryptoException(e);
    } catch (OperatorCreationException e) {
        LOG.error("loadPrivateKey: Caught OperatorCreationException when creating JceOpenSSLPKCS8DecryptorProviderBuilder.");
        throw new CryptoException(e);
    } catch (PKCSException e) {
        LOG.error("loadPrivateKey: Caught PKCSException when decrypting private key.");
        throw new CryptoException(e);
    } catch (IOException e) {
        LOG.error("loadPrivateKey: Caught IOException, while trying to read key.");
        throw new CryptoException(e);
    }
}
Also used : BCECPrivateKey(org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPrivateKey) PrivateKey(java.security.PrivateKey) ECPrivateKeySpec(org.bouncycastle.jce.spec.ECPrivateKeySpec) X9ECParameters(org.bouncycastle.asn1.x9.X9ECParameters) JcaPEMKeyConverter(org.bouncycastle.openssl.jcajce.JcaPEMKeyConverter) PKCS8EncryptedPrivateKeyInfo(org.bouncycastle.pkcs.PKCS8EncryptedPrivateKeyInfo) NoSuchAlgorithmException(java.security.NoSuchAlgorithmException) IOException(java.io.IOException) PKCSException(org.bouncycastle.pkcs.PKCSException) PEMParser(org.bouncycastle.openssl.PEMParser) InputDecryptorProvider(org.bouncycastle.operator.InputDecryptorProvider) ECParameterSpec(org.bouncycastle.jce.spec.ECParameterSpec) PEMException(org.bouncycastle.openssl.PEMException) PemObject(org.bouncycastle.util.io.pem.PemObject) PEMKeyPair(org.bouncycastle.openssl.PEMKeyPair) JceOpenSSLPKCS8DecryptorProviderBuilder(org.bouncycastle.openssl.jcajce.JceOpenSSLPKCS8DecryptorProviderBuilder) InvalidKeySpecException(java.security.spec.InvalidKeySpecException) NoSuchProviderException(java.security.NoSuchProviderException) OperatorCreationException(org.bouncycastle.operator.OperatorCreationException) ASN1ObjectIdentifier(org.bouncycastle.asn1.ASN1ObjectIdentifier) PrivateKeyInfo(org.bouncycastle.asn1.pkcs.PrivateKeyInfo) PKCS8EncryptedPrivateKeyInfo(org.bouncycastle.pkcs.PKCS8EncryptedPrivateKeyInfo) KeyFactory(java.security.KeyFactory)

Example 9 with X9ECParameters

use of org.spongycastle.asn1.x9.X9ECParameters in project athenz by yahoo.

the class Crypto method loadPublicKey.

public static PublicKey loadPublicKey(Reader r) throws CryptoException {
    try (org.bouncycastle.openssl.PEMParser pemReader = new org.bouncycastle.openssl.PEMParser(r)) {
        PublicKey pubKey = null;
        Object pemObj = pemReader.readObject();
        JcaPEMKeyConverter pemConverter = new JcaPEMKeyConverter();
        SubjectPublicKeyInfo keyInfo = null;
        X9ECParameters ecParam = null;
        if (pemObj instanceof ASN1ObjectIdentifier) {
            // make sure this is EC Parameter we're handling. In which case
            // we'll store it and read the next object which should be our
            // EC Public Key
            ASN1ObjectIdentifier ecOID = (ASN1ObjectIdentifier) pemObj;
            ecParam = ECNamedCurveTable.getByOID(ecOID);
            if (ecParam == null) {
                throw new PEMException("Unable to find EC Parameter for the given curve oid: " + ((ASN1ObjectIdentifier) pemObj).getId());
            }
            pemObj = pemReader.readObject();
        } else if (pemObj instanceof X9ECParameters) {
            ecParam = (X9ECParameters) pemObj;
            pemObj = pemReader.readObject();
        }
        if (pemObj instanceof org.bouncycastle.cert.X509CertificateHolder) {
            keyInfo = ((org.bouncycastle.cert.X509CertificateHolder) pemObj).getSubjectPublicKeyInfo();
        } else {
            keyInfo = (SubjectPublicKeyInfo) pemObj;
        }
        pubKey = pemConverter.getPublicKey(keyInfo);
        if (ecParam != null && ECDSA.equals(pubKey.getAlgorithm())) {
            ECParameterSpec ecSpec = new ECParameterSpec(ecParam.getCurve(), ecParam.getG(), ecParam.getN(), ecParam.getH(), ecParam.getSeed());
            KeyFactory keyFactory = KeyFactory.getInstance(ECDSA, BC_PROVIDER);
            ECPublicKeySpec keySpec = new ECPublicKeySpec(((BCECPublicKey) pubKey).getQ(), ecSpec);
            pubKey = (PublicKey) keyFactory.generatePublic(keySpec);
        }
        return pubKey;
    } catch (PEMException e) {
        throw new CryptoException(e);
    } catch (NoSuchProviderException e) {
        LOG.error("loadPublicKey: Caught NoSuchProviderException, check to make sure the provider is loaded correctly.");
        throw new CryptoException(e);
    } catch (NoSuchAlgorithmException e) {
        LOG.error("loadPublicKey: Caught NoSuchAlgorithmException, check to make sure the algorithm is supported by the provider.");
        throw new CryptoException(e);
    } catch (InvalidKeySpecException e) {
        LOG.error("loadPublicKey: Caught InvalidKeySpecException, invalid key spec is being used.");
        throw new CryptoException("InvalidKeySpecException");
    } catch (IOException e) {
        throw new CryptoException(e);
    }
}
Also used : PEMParser(org.bouncycastle.openssl.PEMParser) BCECPublicKey(org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey) PublicKey(java.security.PublicKey) X9ECParameters(org.bouncycastle.asn1.x9.X9ECParameters) JcaPEMKeyConverter(org.bouncycastle.openssl.jcajce.JcaPEMKeyConverter) NoSuchAlgorithmException(java.security.NoSuchAlgorithmException) IOException(java.io.IOException) SubjectPublicKeyInfo(org.bouncycastle.asn1.x509.SubjectPublicKeyInfo) ECPublicKeySpec(org.bouncycastle.jce.spec.ECPublicKeySpec) PEMParser(org.bouncycastle.openssl.PEMParser) ECParameterSpec(org.bouncycastle.jce.spec.ECParameterSpec) PEMException(org.bouncycastle.openssl.PEMException) X509CertificateHolder(org.bouncycastle.cert.X509CertificateHolder) PemObject(org.bouncycastle.util.io.pem.PemObject) InvalidKeySpecException(java.security.spec.InvalidKeySpecException) NoSuchProviderException(java.security.NoSuchProviderException) ASN1ObjectIdentifier(org.bouncycastle.asn1.ASN1ObjectIdentifier) KeyFactory(java.security.KeyFactory)

Example 10 with X9ECParameters

use of org.spongycastle.asn1.x9.X9ECParameters in project BiglyBT by BiglySoftware.

the class JCEECPrivateKey method getEncoded.

/**
 * Return a PKCS8 representation of the key. The sequence returned
 * represents a full PrivateKeyInfo object.
 *
 * @return a PKCS8 representation of the key.
 */
@Override
public byte[] getEncoded() {
    ByteArrayOutputStream bOut = new ByteArrayOutputStream();
    DEROutputStream dOut = new DEROutputStream(bOut);
    X962Parameters params = null;
    if (ecSpec instanceof ECNamedCurveParameterSpec) {
        params = new X962Parameters(X962NamedCurves.getOID(((ECNamedCurveParameterSpec) ecSpec).getName()));
    } else {
        X9ECParameters ecP = new X9ECParameters(ecSpec.getCurve(), ecSpec.getG(), ecSpec.getN(), ecSpec.getH(), ecSpec.getSeed());
        params = new X962Parameters(ecP);
    }
    PrivateKeyInfo info = new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), new ECPrivateKeyStructure(this.getD()).getDERObject());
    try {
        dOut.writeObject(info);
        dOut.close();
    } catch (IOException e) {
        throw new RuntimeException("Error encoding EC private key");
    }
    return bOut.toByteArray();
}
Also used : X962Parameters(org.gudy.bouncycastle.asn1.x9.X962Parameters) X9ECParameters(org.gudy.bouncycastle.asn1.x9.X9ECParameters) ECNamedCurveParameterSpec(org.gudy.bouncycastle.jce.spec.ECNamedCurveParameterSpec) ByteArrayOutputStream(java.io.ByteArrayOutputStream) ECPrivateKeyStructure(org.gudy.bouncycastle.asn1.sec.ECPrivateKeyStructure) IOException(java.io.IOException) PrivateKeyInfo(org.gudy.bouncycastle.asn1.pkcs.PrivateKeyInfo) AlgorithmIdentifier(org.gudy.bouncycastle.asn1.x509.AlgorithmIdentifier)

Aggregations

X9ECParameters (org.bouncycastle.asn1.x9.X9ECParameters)29 X962Parameters (org.bouncycastle.asn1.x9.X962Parameters)16 IOException (java.io.IOException)14 ASN1ObjectIdentifier (org.bouncycastle.asn1.ASN1ObjectIdentifier)12 ECNamedCurveSpec (org.bouncycastle.jce.spec.ECNamedCurveSpec)12 ECCurve (org.bouncycastle.math.ec.ECCurve)11 AlgorithmIdentifier (org.bouncycastle.asn1.x509.AlgorithmIdentifier)10 BigInteger (java.math.BigInteger)9 ASN1OctetString (org.bouncycastle.asn1.ASN1OctetString)8 DERObjectIdentifier (org.bouncycastle.asn1.DERObjectIdentifier)8 X9ECPoint (org.bouncycastle.asn1.x9.X9ECPoint)8 ASN1Encodable (org.bouncycastle.asn1.ASN1Encodable)7 ECParameterSpec (java.security.spec.ECParameterSpec)6 ECPoint (java.security.spec.ECPoint)6 EllipticCurve (java.security.spec.EllipticCurve)6 ASN1Integer (org.bouncycastle.asn1.ASN1Integer)6 ECDomainParameters (org.bouncycastle.crypto.params.ECDomainParameters)6 DERInteger (org.bouncycastle.asn1.DERInteger)5 PrivateKeyInfo (org.bouncycastle.asn1.pkcs.PrivateKeyInfo)5 ECPrivateKeyStructure (org.bouncycastle.asn1.sec.ECPrivateKeyStructure)5