Examples with DEROctetString com.github.zhenwei.core.asn1.DEROctetString used on opensource projects

Example 66 with DEROctetString

use of com.github.zhenwei.core.asn1.DEROctetString 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 67 with DEROctetString

use of com.github.zhenwei.core.asn1.DEROctetString in project LinLong-Java by zhenwei1108.

the class SignerInfoGenerator method generate.

public SignerInfo generate(ASN1ObjectIdentifier contentType) throws CMSException {
    try {
        /* RFC 3852 5.4
       * The result of the message digest calculation process depends on
       * whether the signedAttrs field is present.  When the field is absent,
       * the result is just the message digest of the content as described
       *
       * above.  When the field is present, however, the result is the message
       * digest of the complete DER encoding of the SignedAttrs value
       * contained in the signedAttrs field.
       */
        ASN1Set signedAttr = null;
        AlgorithmIdentifier digestEncryptionAlgorithm = sigEncAlgFinder.findEncryptionAlgorithm(signer.getAlgorithmIdentifier());
        AlgorithmIdentifier digestAlg = null;
        if (sAttrGen != null) {
            digestAlg = digester.getAlgorithmIdentifier();
            calculatedDigest = digester.getDigest();
            Map parameters = getBaseParameters(contentType, digester.getAlgorithmIdentifier(), digestEncryptionAlgorithm, calculatedDigest);
            AttributeTable signed = sAttrGen.getAttributes(Collections.unmodifiableMap(parameters));
            signedAttr = getAttributeSet(signed);
            // sig must be composed from the DER encoding.
            OutputStream sOut = signer.getOutputStream();
            sOut.write(signedAttr.getEncoded(ASN1Encoding.DER));
            sOut.close();
        } else {
            digestAlg = digestAlgorithm;
            if (digester != null) {
                calculatedDigest = digester.getDigest();
            } else {
                calculatedDigest = null;
            }
        }
        byte[] sigBytes = signer.getSignature();
        ASN1Set unsignedAttr = null;
        if (unsAttrGen != null) {
            Map parameters = getBaseParameters(contentType, digestAlg, digestEncryptionAlgorithm, calculatedDigest);
            parameters.put(CMSAttributeTableGenerator.SIGNATURE, Arrays.clone(sigBytes));
            AttributeTable unsigned = unsAttrGen.getAttributes(Collections.unmodifiableMap(parameters));
            unsignedAttr = getAttributeSet(unsigned);
        }
        if (sAttrGen == null) {
            // RFC 8419, Section 3.2 - needs to be shake-256, not shake-256-len
            if (EdECObjectIdentifiers.id_Ed448.equals(digestEncryptionAlgorithm.getAlgorithm())) {
                digestAlg = new AlgorithmIdentifier(NISTObjectIdentifiers.id_shake256);
            }
        }
        return new SignerInfo(signerIdentifier, digestAlg, signedAttr, digestEncryptionAlgorithm, new DEROctetString(sigBytes), unsignedAttr);
    } catch (IOException e) {
        throw new CMSException("encoding error.", e);
    }
}

Example 68 with DEROctetString

use of com.github.zhenwei.core.asn1.DEROctetString in project LinLong-Java by zhenwei1108.

the class EnvelopedDataHelper method getAlgorithmIdentifier.

public AlgorithmIdentifier getAlgorithmIdentifier(ASN1ObjectIdentifier macOID, AlgorithmParameterSpec paramSpec) {
    if (paramSpec instanceof IvParameterSpec) {
        return new AlgorithmIdentifier(macOID, new DEROctetString(((IvParameterSpec) paramSpec).getIV()));
    }
    if (paramSpec instanceof RC2ParameterSpec) {
        RC2ParameterSpec rc2Spec = (RC2ParameterSpec) paramSpec;
        int effKeyBits = ((RC2ParameterSpec) paramSpec).getEffectiveKeyBits();
        if (effKeyBits != -1) {
            int parameterVersion;
            if (effKeyBits < 256) {
                parameterVersion = rc2Table[effKeyBits];
            } else {
                parameterVersion = effKeyBits;
            }
            return new AlgorithmIdentifier(macOID, new RC2CBCParameter(parameterVersion, rc2Spec.getIV()));
        }
        return new AlgorithmIdentifier(macOID, new RC2CBCParameter(rc2Spec.getIV()));
    }
    throw new IllegalStateException("unknown parameter spec: " + paramSpec);
}

Example 69 with DEROctetString

use of com.github.zhenwei.core.asn1.DEROctetString in project LinLong-Java by zhenwei1108.

the class ECCCMSSharedInfo method toASN1Primitive.

/**
 * Produce an object suitable for an ASN1OutputStream.
 */
public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector v = new ASN1EncodableVector(3);
    v.add(keyInfo);
    if (entityUInfo != null) {
        v.add(new DERTaggedObject(true, 0, new DEROctetString(entityUInfo)));
    }
    v.add(new DERTaggedObject(true, 2, new DEROctetString(suppPubInfo)));
    return new DERSequence(v);
}

Example 70 with DEROctetString

use of com.github.zhenwei.core.asn1.DEROctetString in project LinLong-Java by zhenwei1108.

the class GCMParameters method toASN1Primitive.

public ASN1Primitive toASN1Primitive() {
    ASN1EncodableVector v = new ASN1EncodableVector(2);
    v.add(new DEROctetString(nonce));
    if (icvLen != 12) {
        v.add(new ASN1Integer(icvLen));
    }
    return new DERSequence(v);
}