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

Example 71 with DERSequence

use of org.bouncycastle.asn1.DERSequence in project keystore-explorer by kaikramer.

the class OpenSslPvkUtil method get.

/**
 * OpenSSL encode a private key.
 *
 * @return The encoding
 * @param privateKey
 *            The private key
 * @throws CryptoException
 *             Problem encountered while getting the encoded private key
 */
public static byte[] get(PrivateKey privateKey) throws CryptoException {
    // DER encoding for each key type is a sequence
    ASN1EncodableVector vec = new ASN1EncodableVector();
    if (privateKey instanceof ECPrivateKey) {
        try {
            ECPrivateKey ecPrivKey = (ECPrivateKey) privateKey;
            org.bouncycastle.asn1.sec.ECPrivateKey keyStructure = EccUtil.convertToECPrivateKeyStructure(ecPrivKey);
            return keyStructure.toASN1Primitive().getEncoded();
        } catch (IOException e) {
            throw new CryptoException(res.getString("NoDerEncodeOpenSslPrivateKey.exception.message"), e);
        }
    } else if (privateKey instanceof RSAPrivateCrtKey) {
        RSAPrivateCrtKey rsaPrivateKey = (RSAPrivateCrtKey) privateKey;
        vec.add(new ASN1Integer(VERSION));
        vec.add(new ASN1Integer(rsaPrivateKey.getModulus()));
        vec.add(new ASN1Integer(rsaPrivateKey.getPublicExponent()));
        vec.add(new ASN1Integer(rsaPrivateKey.getPrivateExponent()));
        vec.add(new ASN1Integer(rsaPrivateKey.getPrimeP()));
        vec.add(new ASN1Integer(rsaPrivateKey.getPrimeQ()));
        vec.add(new ASN1Integer(rsaPrivateKey.getPrimeExponentP()));
        vec.add(new ASN1Integer(rsaPrivateKey.getPrimeExponentQ()));
        vec.add(new ASN1Integer(rsaPrivateKey.getCrtCoefficient()));
    } else {
        DSAPrivateKey dsaPrivateKey = (DSAPrivateKey) privateKey;
        DSAParams dsaParams = dsaPrivateKey.getParams();
        BigInteger primeModulusP = dsaParams.getP();
        BigInteger primeQ = dsaParams.getQ();
        BigInteger generatorG = dsaParams.getG();
        BigInteger secretExponentX = dsaPrivateKey.getX();
        // Derive public key from private key parts, ie Y = G^X mod P
        BigInteger publicExponentY = generatorG.modPow(secretExponentX, primeModulusP);
        vec.add(new ASN1Integer(VERSION));
        vec.add(new ASN1Integer(primeModulusP));
        vec.add(new ASN1Integer(primeQ));
        vec.add(new ASN1Integer(generatorG));
        vec.add(new ASN1Integer(publicExponentY));
        vec.add(new ASN1Integer(secretExponentX));
    }
    DERSequence derSequence = new DERSequence(vec);
    try {
        return derSequence.getEncoded();
    } catch (IOException ex) {
        throw new CryptoException(res.getString("NoDerEncodeOpenSslPrivateKey.exception.message"), ex);
    }
}

Example 72 with DERSequence

use of org.bouncycastle.asn1.DERSequence in project keystore-explorer by kaikramer.

the class Spkac method encodeRsaPublicKeyAsBitString.

private byte[] encodeRsaPublicKeyAsBitString(RSAPublicKey rsaPublicKey) throws SpkacException {
    try {
        ASN1EncodableVector vec = new ASN1EncodableVector();
        vec.add(new ASN1Integer(rsaPublicKey.getModulus()));
        vec.add(new ASN1Integer(rsaPublicKey.getPublicExponent()));
        DERSequence derSequence = new DERSequence(vec);
        return derSequence.getEncoded(ASN1Encoding.DER);
    } catch (Exception ex) {
        throw new SpkacException(res.getString("NoEncodeRsaPublicKey.exception.message"), ex);
    }
}

Example 73 with DERSequence

use of org.bouncycastle.asn1.DERSequence in project nuls by nuls-io.

the class SM2Utils method encrypt.

public static byte[] encrypt(byte[] publicKey, byte[] data) throws IOException {
    if (publicKey == null || publicKey.length == 0) {
        return null;
    }
    if (data == null || data.length == 0) {
        return null;
    }
    byte[] source = new byte[data.length];
    System.arraycopy(data, 0, source, 0, data.length);
    Cipher cipher = new Cipher();
    SM2 sm2 = SM2.Instance();
    ECPoint userKey = sm2.ecc_curve.decodePoint(publicKey);
    ECPoint c1 = cipher.initEnc(sm2, userKey);
    cipher.encrypt(source);
    byte[] c3 = new byte[32];
    cipher.dofinal(c3);
    DERInteger x = new DERInteger(c1.getX().toBigInteger());
    DERInteger y = new DERInteger(c1.getY().toBigInteger());
    DEROctetString derDig = new DEROctetString(c3);
    DEROctetString derEnc = new DEROctetString(source);
    ASN1EncodableVector v = new ASN1EncodableVector();
    v.add(x);
    v.add(y);
    v.add(derDig);
    v.add(derEnc);
    DERSequence seq = new DERSequence(v);
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    DEROutputStream dos = new DEROutputStream(bos);
    dos.writeObject(seq);
    return bos.toByteArray();
}

Example 74 with DERSequence

use of org.bouncycastle.asn1.DERSequence in project xipki by xipki.

the class XmlX509CertprofileUtil method createPolicyQualifiers.

private static ASN1Sequence createPolicyQualifiers(List<CertificatePolicyQualifier> qualifiers) {
    ParamUtil.requireNonNull("qualifiers", qualifiers);
    List<PolicyQualifierInfo> qualifierInfos = new ArrayList<>(qualifiers.size());
    for (CertificatePolicyQualifier qualifier : qualifiers) {
        PolicyQualifierInfo qualifierInfo;
        if (qualifier.getCpsUri() != null) {
            qualifierInfo = new PolicyQualifierInfo(qualifier.getCpsUri());
        } else if (qualifier.getUserNotice() != null) {
            UserNotice userNotice = new UserNotice(null, qualifier.getUserNotice());
            qualifierInfo = new PolicyQualifierInfo(PKCSObjectIdentifiers.id_spq_ets_unotice, userNotice);
        } else {
            qualifierInfo = null;
        }
        if (qualifierInfo != null) {
            qualifierInfos.add(qualifierInfo);
        }
    // PolicyQualifierId qualifierId
    }
    return new DERSequence(qualifierInfos.toArray(new PolicyQualifierInfo[0]));
}

Example 75 with DERSequence

use of org.bouncycastle.asn1.DERSequence in project xipki by xipki.

the class XmlX509CertprofileUtil method buildPolicyConstrains.

// method buildGeneralSubtree
public static ASN1Sequence buildPolicyConstrains(PolicyConstraints type) throws CertprofileException {
    ParamUtil.requireNonNull("type", type);
    Integer requireExplicitPolicy = type.getRequireExplicitPolicy();
    if (requireExplicitPolicy != null && requireExplicitPolicy < 0) {
        throw new CertprofileException("negative requireExplicitPolicy is not allowed: " + requireExplicitPolicy);
    }
    Integer inhibitPolicyMapping = type.getInhibitPolicyMapping();
    if (inhibitPolicyMapping != null && inhibitPolicyMapping < 0) {
        throw new CertprofileException("negative inhibitPolicyMapping is not allowed: " + inhibitPolicyMapping);
    }
    if (requireExplicitPolicy == null && inhibitPolicyMapping == null) {
        return null;
    }
    final boolean explicit = false;
    ASN1EncodableVector vec = new ASN1EncodableVector();
    if (requireExplicitPolicy != null) {
        vec.add(new DERTaggedObject(explicit, 0, new ASN1Integer(BigInteger.valueOf(requireExplicitPolicy))));
    }
    if (inhibitPolicyMapping != null) {
        vec.add(new DERTaggedObject(explicit, 1, new ASN1Integer(BigInteger.valueOf(inhibitPolicyMapping))));
    }
    return new DERSequence(vec);
}