Package org.bouncycastle.asn1.x9

Examples of org.bouncycastle.asn1.x9.X9IntegerConverter

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            EllipticCurve           ellipticCurve;
           
            if (params.isNamedCurve())
            {
                DERObjectIdentifier oid = (DERObjectIdentifier)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 = ProviderUtil.getEcImplicitlyCa().getCurve();
            }
            else
            {
                X9ECParameters          ecP = new X9ECParameters((ASN1Sequence)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);
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            }
            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());
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     * @param oid an object identifier representing a named curve, if present.
     */
    public static X9ECParameters getByOID(
        ASN1ObjectIdentifier oid)
    {
        X9ECParametersHolder holder = (X9ECParametersHolder)curves.get(oid);

        if (holder != null)
        {
            return holder.getParameters();
        }

        return null;
    }
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     * @param oid an object identifier representing a named curve, if present.
     */
    public static X9ECParameters getByOID(
        ASN1ObjectIdentifier oid)
    {
        X9ECParametersHolder holder = (X9ECParametersHolder)curves.get(oid);

        if (holder != null)
        {
            return holder.getParameters();
        }

        return null;
    }
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     * @param oid an object identifier representing a named curve, if present.
     */
    public static X9ECParameters getByOID(
        DERObjectIdentifier oid)
    {
        X9ECParametersHolder holder = (X9ECParametersHolder)curves.get(oid);

        if (holder != null)
        {
            return holder.getParameters();
        }

        return null;
    }
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            {
                throw new IllegalArgumentException("error recovering public key");
            }
        }

        X9ECPoint       derQ = new X9ECPoint(ecSpec.getCurve(), key);

        this.q = derQ.getPoint();
    }
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                                            ecSpec.getH(),
                                            ecSpec.getSeed());
            params = new X962Parameters(ecP);
        }

        ASN1OctetString    p = (ASN1OctetString)(new X9ECPoint(this.getQ()).getDERObject());

        SubjectPublicKeyInfo info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());

        try
        {
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                    {
                        throw new IllegalArgumentException("error recovering public key");
                    }
                }
            }
            X9ECPoint derQ = new X9ECPoint(curve, key);

            this.q = derQ.getPoint();
        }
    }
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                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);
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                    {
                        throw new IllegalArgumentException("error recovering public key");
                    }
                }
            }
            X9ECPoint derQ = new X9ECPoint(curve, key);

            this.q = derQ.getPoint();
        }
    }
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Related Classes of org.bouncycastle.asn1.x9.X9IntegerConverter

  • com.nimbusds.jose.crypto.ECDSAProvider
  • com.nimbusds.jose.crypto.ECDSASigner
  • com.nimbusds.jose.crypto.ECDSAVerifier
  • org.bouncycastle.asn1.ASN1Encodable
  • org.bouncycastle.asn1.ASN1EncodableVector
  • org.bouncycastle.asn1.ASN1Integer
  • org.bouncycastle.asn1.ASN1ObjectIdentifier
  • org.bouncycastle.asn1.ASN1SequenceParser
  • org.bouncycastle.asn1.BERSequence
  • org.bouncycastle.asn1.BERTaggedObject
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