Package org.bouncycastle.asn1.x9

Examples of org.bouncycastle.asn1.x9.X9ECPoint

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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)).getDERObject();

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

        return info.getDEREncoded();
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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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        SubjectPublicKeyInfo info;
       
        if (algorithm.equals("ECGOST3410"))
        {
            ASN1OctetString    p = (ASN1OctetString)(new X9ECPoint(new org.bouncycastle.math.ec.ECPoint.Fp(this.getQ().getCurve(), this.getQ().getX(), this.getQ().getY(), false)).getDERObject());
           
            BigInteger      bX = this.q.getX().toBigInteger();
            BigInteger      bY = this.q.getY().toBigInteger();
            byte[]          encKey = new byte[64];
           
            byte[] val = bX.toByteArray();
           
            for (int i = 0; i != 32; i++)
            {
                encKey[i] = val[val.length - 1 - i];
            }
           
            val = bY.toByteArray();
           
            for (int i = 0; i != 32; i++)
            {
                encKey[32 + i] = val[val.length - 1 - i];
            }
           
            info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_2001, gostParams.getDERObject()), new DEROctetString(encKey));
        }
        else
        {
            ASN1OctetString    p = (ASN1OctetString)(new X9ECPoint(new org.bouncycastle.math.ec.ECPoint.Fp(this.getQ().getCurve(), this.getQ().getX(), this.getQ().getY(), withCompression)).getDERObject());
           
            info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());
        }
       
        try
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                catch (IOException ex)
                {
                    throw new IllegalArgumentException("error recovering public key");
                }
            }
            X9ECPoint       derQ = new X9ECPoint(curve, key);
   
            this.q = derQ.getPoint();
        }
    }
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            ECCurve curve = this.engineGetQ().getCurve();

            if (curve instanceof ECCurve.Fp)
            {
                ASN1OctetString    p = (ASN1OctetString)(new X9ECPoint(new org.bouncycastle.math.ec.ECPoint.Fp(curve, this.getQ().getX(), this.getQ().getY(), withCompression)).getDERObject());
                info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());
            }
            else
            {
                ASN1OctetString    p = (ASN1OctetString)(new X9ECPoint(new org.bouncycastle.math.ec.ECPoint.F2m(curve, this.getQ().getX(), this.getQ().getY(), withCompression)).getDERObject());
                info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());
            }
        }
       
        return info.getDEREncoded();
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            DERBitString    bits = keyInfo.getPublicKeyData();
            byte[]          data = bits.getBytes();
            ASN1OctetString key = new DEROctetString(data);

            X9ECPoint       derQ = new X9ECPoint(dParams.getCurve(), key);
           
            return new ECPublicKeyParameters(derQ.getPoint(), dParams);
        }
        else
        {
            throw new RuntimeException("algorithm identifier in key not recognised");
        }
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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)).getDERObject();

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

        return info.getDEREncoded();
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                catch (IOException ex)
                {
                    throw new IllegalArgumentException("error recovering public key");
                }
            }
            X9ECPoint       derQ = new X9ECPoint(curve, key);
   
            this.q = derQ.getPoint();
        }
    }
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            ECCurve curve = this.engineGetQ().getCurve();

            if (curve instanceof ECCurve.Fp)
            {
                ASN1OctetString    p = (ASN1OctetString)(new X9ECPoint(new org.bouncycastle.math.ec.ECPoint.Fp(curve, this.getQ().getX(), this.getQ().getY(), withCompression)).getDERObject());
                info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());
            }
            else
            {
                ASN1OctetString    p = (ASN1OctetString)(new X9ECPoint(new org.bouncycastle.math.ec.ECPoint.F2m(curve, this.getQ().getX(), this.getQ().getY(), withCompression)).getDERObject());
                info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());
            }
        }
       
        return info.getDEREncoded();
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Related Classes of org.bouncycastle.asn1.x9.X9ECPoint

  • 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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