Examples with DERBitString org.bouncycastle.asn1.DERBitString used on opensource projects

Example 26 with DERBitString

use of org.bouncycastle.asn1.DERBitString in project robovm by robovm.

the class JCEECPublicKey method populateFromPubKeyInfo.

private void populateFromPubKeyInfo(SubjectPublicKeyInfo info) {
    // BEGIN android-removed
    // if (info.getAlgorithmId().getObjectId().equals(CryptoProObjectIdentifiers.gostR3410_2001))
    // {
    //     DERBitString bits = info.getPublicKeyData();
    //     ASN1OctetString key;
    //     this.algorithm = "ECGOST3410";
    //
    //     try
    //     {
    //         key = (ASN1OctetString) ASN1Primitive.fromByteArray(bits.getBytes());
    //     }
    //     catch (IOException ex)
    //     {
    //         throw new IllegalArgumentException("error recovering public key");
    //     }
    //
    //     byte[]          keyEnc = key.getOctets();
    //     byte[]          x = new byte[32];
    //     byte[]          y = new byte[32];
    //
    //     for (int i = 0; i != x.length; i++)
    //     {
    //         x[i] = keyEnc[32 - 1 - i];
    //     }
    //
    //     for (int i = 0; i != y.length; i++)
    //     {
    //         y[i] = keyEnc[64 - 1 - i];
    //     }
    //
    //     gostParams = new GOST3410PublicKeyAlgParameters((ASN1Sequence)info.getAlgorithmId().getParameters());
    //
    //     ECNamedCurveParameterSpec spec = ECGOST3410NamedCurveTable.getParameterSpec(ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()));
    //
    //     ECCurve curve = spec.getCurve();
    //     EllipticCurve ellipticCurve = EC5Util.convertCurve(curve, spec.getSeed());
    //
    //     this.q = curve.createPoint(new BigInteger(1, x), new BigInteger(1, y), false);
    //
    //     ecSpec = new ECNamedCurveSpec(
    //             ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()),
    //             ellipticCurve,
    //             new ECPoint(
    //                     spec.getG().getX().toBigInteger(),
    //                     spec.getG().getY().toBigInteger()),
    //                     spec.getN(), spec.getH());
    //
    // }
    // else
    // END android-removed
    {
        X962Parameters params = new X962Parameters((ASN1Primitive) info.getAlgorithmId().getParameters());
        ECCurve curve;
        EllipticCurve ellipticCurve;
        if (params.isNamedCurve()) {
            ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) params.getParameters();
            X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
            curve = ecP.getCurve();
            ellipticCurve = EC5Util.convertCurve(curve, 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;
            curve = BouncyCastleProvider.CONFIGURATION.getEcImplicitlyCa().getCurve();
        } else {
            X9ECParameters ecP = X9ECParameters.getInstance(params.getParameters());
            curve = ecP.getCurve();
            ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());
            this.ecSpec = new ECParameterSpec(ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH().intValue());
        }
        DERBitString bits = info.getPublicKeyData();
        byte[] data = bits.getBytes();
        ASN1OctetString key = new DEROctetString(data);
        //
        if (data[0] == 0x04 && data[1] == data.length - 2 && (data[2] == 0x02 || data[2] == 0x03)) {
            int qLength = new X9IntegerConverter().getByteLength(curve);
            if (qLength >= data.length - 3) {
                try {
                    key = (ASN1OctetString) ASN1Primitive.fromByteArray(data);
                } catch (IOException ex) {
                    throw new IllegalArgumentException("error recovering public key");
                }
            }
        }
        X9ECPoint derQ = new X9ECPoint(curve, key);
        this.q = derQ.getPoint();
    }
}

Example 27 with DERBitString

use of org.bouncycastle.asn1.DERBitString in project robovm by robovm.

the class BCECPublicKey method populateFromPubKeyInfo.

private void populateFromPubKeyInfo(SubjectPublicKeyInfo info) {
    X962Parameters params = new X962Parameters((ASN1Primitive) info.getAlgorithm().getParameters());
    ECCurve curve;
    EllipticCurve ellipticCurve;
    if (params.isNamedCurve()) {
        ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) params.getParameters();
        X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
        curve = ecP.getCurve();
        ellipticCurve = EC5Util.convertCurve(curve, 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;
        curve = configuration.getEcImplicitlyCa().getCurve();
    } else {
        X9ECParameters ecP = X9ECParameters.getInstance(params.getParameters());
        curve = ecP.getCurve();
        ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());
        this.ecSpec = new ECParameterSpec(ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH().intValue());
    }
    DERBitString bits = info.getPublicKeyData();
    byte[] data = bits.getBytes();
    ASN1OctetString key = new DEROctetString(data);
    //
    if (data[0] == 0x04 && data[1] == data.length - 2 && (data[2] == 0x02 || data[2] == 0x03)) {
        int qLength = new X9IntegerConverter().getByteLength(curve);
        if (qLength >= data.length - 3) {
            try {
                key = (ASN1OctetString) ASN1Primitive.fromByteArray(data);
            } catch (IOException ex) {
                throw new IllegalArgumentException("error recovering public key");
            }
        }
    }
    X9ECPoint derQ = new X9ECPoint(curve, key);
    this.q = derQ.getPoint();
}

Example 28 with DERBitString

use of org.bouncycastle.asn1.DERBitString in project robovm by robovm.

the class PKCS10CertificationRequest method getPublicKey.

public PublicKey getPublicKey(String provider) throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeyException {
    SubjectPublicKeyInfo subjectPKInfo = reqInfo.getSubjectPublicKeyInfo();
    try {
        X509EncodedKeySpec xspec = new X509EncodedKeySpec(new DERBitString(subjectPKInfo).getBytes());
        AlgorithmIdentifier keyAlg = subjectPKInfo.getAlgorithm();
        try {
            if (provider == null) {
                return KeyFactory.getInstance(keyAlg.getAlgorithm().getId()).generatePublic(xspec);
            } else {
                return KeyFactory.getInstance(keyAlg.getAlgorithm().getId(), provider).generatePublic(xspec);
            }
        } catch (NoSuchAlgorithmException e) {
            //
            if (keyAlgorithms.get(keyAlg.getObjectId()) != null) {
                String keyAlgorithm = (String) keyAlgorithms.get(keyAlg.getObjectId());
                if (provider == null) {
                    return KeyFactory.getInstance(keyAlgorithm).generatePublic(xspec);
                } else {
                    return KeyFactory.getInstance(keyAlgorithm, provider).generatePublic(xspec);
                }
            }
            throw e;
        }
    } catch (InvalidKeySpecException e) {
        throw new InvalidKeyException("error decoding public key");
    } catch (IOException e) {
        throw new InvalidKeyException("error decoding public key");
    }
}

Example 29 with DERBitString

use of org.bouncycastle.asn1.DERBitString in project robovm by robovm.

the class NetscapeCertRequest method toASN1Primitive.

public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector spkac = new ASN1EncodableVector();
    ASN1EncodableVector pkac = new ASN1EncodableVector();
    try {
        pkac.add(getKeySpec());
    } catch (Exception e) {
    //ignore
    }
    pkac.add(new DERIA5String(challenge));
    spkac.add(new DERSequence(pkac));
    spkac.add(sigAlg);
    spkac.add(new DERBitString(sigBits));
    return new DERSequence(spkac);
}

Example 30 with DERBitString

use of org.bouncycastle.asn1.DERBitString in project robovm by robovm.

the class X509CertificateObject method getSubjectUniqueID.

public boolean[] getSubjectUniqueID() {
    DERBitString id = c.getTBSCertificate().getSubjectUniqueId();
    if (id != null) {
        byte[] bytes = id.getBytes();
        boolean[] boolId = new boolean[bytes.length * 8 - id.getPadBits()];
        for (int i = 0; i != boolId.length; i++) {
            boolId[i] = (bytes[i / 8] & (0x80 >>> (i % 8))) != 0;
        }
        return boolId;
    }
    return null;
}