diff options
Diffstat (limited to 'prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/BCECPublicKey.java')
-rw-r--r-- | prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/BCECPublicKey.java | 454 |
1 files changed, 0 insertions, 454 deletions
diff --git a/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/BCECPublicKey.java b/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/BCECPublicKey.java deleted file mode 100644 index ac0ddf5b..00000000 --- a/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/BCECPublicKey.java +++ /dev/null @@ -1,454 +0,0 @@ -package org.bouncycastle.jcajce.provider.asymmetric.ec; - -import java.io.IOException; -import java.io.ObjectInputStream; -import java.io.ObjectOutputStream; -import java.math.BigInteger; -import java.security.interfaces.ECPublicKey; -import java.security.spec.ECParameterSpec; -import java.security.spec.ECPoint; -import java.security.spec.ECPublicKeySpec; -import java.security.spec.EllipticCurve; - -import org.bouncycastle.asn1.ASN1Encodable; -import org.bouncycastle.asn1.ASN1ObjectIdentifier; -import org.bouncycastle.asn1.ASN1OctetString; -import org.bouncycastle.asn1.ASN1Primitive; -import org.bouncycastle.asn1.DERBitString; -import org.bouncycastle.asn1.DERNull; -import org.bouncycastle.asn1.DEROctetString; -import org.bouncycastle.asn1.x509.AlgorithmIdentifier; -import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo; -import org.bouncycastle.asn1.x9.X962Parameters; -import org.bouncycastle.asn1.x9.X9ECParameters; -import org.bouncycastle.asn1.x9.X9ECPoint; -import org.bouncycastle.asn1.x9.X9IntegerConverter; -import org.bouncycastle.asn1.x9.X9ObjectIdentifiers; -import org.bouncycastle.crypto.params.ECDomainParameters; -import org.bouncycastle.crypto.params.ECPublicKeyParameters; -import org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util; -import org.bouncycastle.jcajce.provider.asymmetric.util.ECUtil; -import org.bouncycastle.jcajce.provider.asymmetric.util.KeyUtil; -import org.bouncycastle.jcajce.provider.config.ProviderConfiguration; -import org.bouncycastle.jce.interfaces.ECPointEncoder; -import org.bouncycastle.jce.provider.BouncyCastleProvider; -import org.bouncycastle.jce.spec.ECNamedCurveSpec; -import org.bouncycastle.math.ec.ECCurve; -import org.bouncycastle.math.ec.custom.sec.SecP256K1Point; -import org.bouncycastle.math.ec.custom.sec.SecP256R1Point; - -public class BCECPublicKey - implements ECPublicKey, org.bouncycastle.jce.interfaces.ECPublicKey, ECPointEncoder -{ - static final long serialVersionUID = 2422789860422731812L; - - private String algorithm = "EC"; - private boolean withCompression; - - private transient org.bouncycastle.math.ec.ECPoint q; - private transient ECParameterSpec ecSpec; - private transient ProviderConfiguration configuration; - - public BCECPublicKey( - String algorithm, - BCECPublicKey key) - { - this.algorithm = algorithm; - this.q = key.q; - this.ecSpec = key.ecSpec; - this.withCompression = key.withCompression; - this.configuration = key.configuration; - } - - public BCECPublicKey( - String algorithm, - ECPublicKeySpec spec, - ProviderConfiguration configuration) - { - this.algorithm = algorithm; - this.ecSpec = spec.getParams(); - this.q = EC5Util.convertPoint(ecSpec, spec.getW(), false); - this.configuration = configuration; - } - - public BCECPublicKey( - String algorithm, - org.bouncycastle.jce.spec.ECPublicKeySpec spec, - ProviderConfiguration configuration) - { - this.algorithm = algorithm; - this.q = spec.getQ(); - - if (spec.getParams() != null) // can be null if implictlyCa - { - ECCurve curve = spec.getParams().getCurve(); - EllipticCurve ellipticCurve = EC5Util.convertCurve(curve, spec.getParams().getSeed()); - - // this may seem a little long-winded but it's how we pick up the custom curve. - this.q = EC5Util.convertCurve(ellipticCurve).createPoint(spec.getQ().getAffineXCoord().toBigInteger(), spec.getQ().getAffineYCoord().toBigInteger()); - this.ecSpec = EC5Util.convertSpec(ellipticCurve, spec.getParams()); - } - else - { - if (q.getCurve() == null) - { - org.bouncycastle.jce.spec.ECParameterSpec s = configuration.getEcImplicitlyCa(); - - q = s.getCurve().createPoint(q.getXCoord().toBigInteger(), q.getYCoord().toBigInteger(), false); - } - this.ecSpec = null; - } - - this.configuration = configuration; - } - - public BCECPublicKey( - String algorithm, - ECPublicKeyParameters params, - ECParameterSpec spec, - ProviderConfiguration configuration) - { - ECDomainParameters dp = params.getParameters(); - - this.algorithm = algorithm; - this.q = params.getQ(); - - if (spec == null) - { - EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed()); - - this.ecSpec = createSpec(ellipticCurve, dp); - } - else - { - this.ecSpec = spec; - } - - this.configuration = configuration; - } - - public BCECPublicKey( - String algorithm, - ECPublicKeyParameters params, - org.bouncycastle.jce.spec.ECParameterSpec spec, - ProviderConfiguration configuration) - { - ECDomainParameters dp = params.getParameters(); - - this.algorithm = algorithm; - - if (spec == null) - { - EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed()); - - this.ecSpec = createSpec(ellipticCurve, dp); - } - else - { - EllipticCurve ellipticCurve = EC5Util.convertCurve(spec.getCurve(), spec.getSeed()); - - this.ecSpec = EC5Util.convertSpec(ellipticCurve, spec); - } - - this.q = EC5Util.convertCurve(ecSpec.getCurve()).createPoint(params.getQ().getAffineXCoord().toBigInteger(), params.getQ().getAffineYCoord().toBigInteger()); - - this.configuration = configuration; - } - - /* - * called for implicitCA - */ - public BCECPublicKey( - String algorithm, - ECPublicKeyParameters params, - ProviderConfiguration configuration) - { - this.algorithm = algorithm; - this.q = params.getQ(); - this.ecSpec = null; - this.configuration = configuration; - } - - public BCECPublicKey( - ECPublicKey key, - ProviderConfiguration configuration) - { - this.algorithm = key.getAlgorithm(); - this.ecSpec = key.getParams(); - this.q = EC5Util.convertPoint(this.ecSpec, key.getW(), false); - } - - BCECPublicKey( - String algorithm, - SubjectPublicKeyInfo info, - ProviderConfiguration configuration) - { - this.algorithm = algorithm; - this.configuration = configuration; - populateFromPubKeyInfo(info); - } - - private ECParameterSpec createSpec(EllipticCurve ellipticCurve, ECDomainParameters dp) - { - return new ECParameterSpec( - ellipticCurve, - new ECPoint( - dp.getG().getAffineXCoord().toBigInteger(), - dp.getG().getAffineYCoord().toBigInteger()), - dp.getN(), - dp.getH().intValue()); - } - - 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().getAffineXCoord().toBigInteger(), - ecP.getG().getAffineYCoord().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().getAffineXCoord().toBigInteger(), - ecP.getG().getAffineYCoord().toBigInteger()), - ecP.getN(), - ecP.getH().intValue()); - } - - DERBitString bits = info.getPublicKeyData(); - byte[] data = bits.getBytes(); - ASN1OctetString key = new DEROctetString(data); - - // - // extra octet string - one of our old certs... - // - 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(); - } - - public String getAlgorithm() - { - return algorithm; - } - - public String getFormat() - { - return "X.509"; - } - - public byte[] getEncoded() - { - ASN1Encodable params; - SubjectPublicKeyInfo info; - - if (ecSpec instanceof ECNamedCurveSpec) - { - ASN1ObjectIdentifier curveOid = ECUtil.getNamedCurveOid(((ECNamedCurveSpec)ecSpec).getName()); - if (curveOid == null) - { - curveOid = new ASN1ObjectIdentifier(((ECNamedCurveSpec)ecSpec).getName()); - } - params = new X962Parameters(curveOid); - } - else if (ecSpec == null) - { - params = new X962Parameters(DERNull.INSTANCE); - } - 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()); - - params = new X962Parameters(ecP); - } - - ECCurve curve = this.engineGetQ().getCurve(); - ASN1OctetString p; - - // stored curve is null if ImplicitlyCa - if (ecSpec == null) - { - p = (ASN1OctetString) - new X9ECPoint(curve.createPoint(this.getQ().getXCoord().toBigInteger(), this.getQ().getYCoord().toBigInteger(), withCompression)).toASN1Primitive(); - } - else - { - p = (ASN1OctetString) - new X9ECPoint(curve.createPoint(this.getQ().getAffineXCoord().toBigInteger(), this.getQ().getAffineYCoord().toBigInteger(), withCompression)).toASN1Primitive(); - } - - info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), p.getOctets()); - - return KeyUtil.getEncodedSubjectPublicKeyInfo(info); - } - - private void extractBytes(byte[] encKey, int offSet, BigInteger bI) - { - byte[] val = bI.toByteArray(); - if (val.length < 32) - { - byte[] tmp = new byte[32]; - System.arraycopy(val, 0, tmp, tmp.length - val.length, val.length); - val = tmp; - } - - for (int i = 0; i != 32; i++) - { - encKey[offSet + i] = val[val.length - 1 - i]; - } - } - - public ECParameterSpec getParams() - { - return ecSpec; - } - - public org.bouncycastle.jce.spec.ECParameterSpec getParameters() - { - if (ecSpec == null) // implictlyCA - { - return null; - } - - return EC5Util.convertSpec(ecSpec, withCompression); - } - - public ECPoint getW() - { - return new ECPoint(q.getAffineXCoord().toBigInteger(), q.getAffineYCoord().toBigInteger()); - } - - public org.bouncycastle.math.ec.ECPoint getQ() - { - if (ecSpec == null) - { - return q.getDetachedPoint(); - } - - return q; - } - - public org.bouncycastle.math.ec.ECPoint engineGetQ() - { - return q; - } - - org.bouncycastle.jce.spec.ECParameterSpec engineGetSpec() - { - if (ecSpec != null) - { - return EC5Util.convertSpec(ecSpec, withCompression); - } - - return configuration.getEcImplicitlyCa(); - } - - public String toString() - { - StringBuffer buf = new StringBuffer(); - String nl = System.getProperty("line.separator"); - - buf.append("EC Public Key").append(nl); - buf.append(" X: ").append(this.q.getAffineXCoord().toBigInteger().toString(16)).append(nl); - buf.append(" Y: ").append(this.q.getAffineYCoord().toBigInteger().toString(16)).append(nl); - - return buf.toString(); - - } - - public void setPointFormat(String style) - { - withCompression = !("UNCOMPRESSED".equalsIgnoreCase(style)); - } - - public boolean equals(Object o) - { - if (!(o instanceof BCECPublicKey)) - { - return false; - } - - BCECPublicKey other = (BCECPublicKey)o; - - return engineGetQ().equals(other.engineGetQ()) && (engineGetSpec().equals(other.engineGetSpec())); - } - - public int hashCode() - { - return engineGetQ().hashCode() ^ engineGetSpec().hashCode(); - } - - private void readObject( - ObjectInputStream in) - throws IOException, ClassNotFoundException - { - in.defaultReadObject(); - - byte[] enc = (byte[])in.readObject(); - - populateFromPubKeyInfo(SubjectPublicKeyInfo.getInstance(ASN1Primitive.fromByteArray(enc))); - - this.configuration = BouncyCastleProvider.CONFIGURATION; - } - - private void writeObject( - ObjectOutputStream out) - throws IOException - { - out.defaultWriteObject(); - - out.writeObject(this.getEncoded()); - } -} |