com.unbound.client.kmip.KMIPRSAPublicKey Maven / Gradle / Ivy

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This is a collection of JAVA libraries that implement Unbound cryptographic classes for JAVA provider, PKCS11 wrapper, cryptoki, and advapi

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package com.unbound.client.kmip;

import com.unbound.client.ObjectType;
import com.unbound.client.RSAPublicKeyObject;
import com.unbound.common.Log;
import com.unbound.common.crypto.SystemProvider;
import com.unbound.kmip.KMIP;
import com.unbound.kmip.attribute.*;
import com.unbound.kmip.object.ManagedObject;
import com.unbound.kmip.request.RegisterRequest;
import com.unbound.provider.KeyParameters;

import java.math.BigInteger;
import java.security.KeyFactory;
import java.security.ProviderException;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.X509EncodedKeySpec;

public class KMIPRSAPublicKey extends KMIPObject implements RSAPublicKeyObject
{
  BigInteger modulus = null;
  BigInteger publicExponent = null;

  KMIPRSAPublicKey(KMIPSession session, long uid)
  {
    super(ObjectType.RSAPub, uid);
    read(session);
  }

  @Override
  public BigInteger getPublicExponent() {  return publicExponent; }

  @Override
  public BigInteger getModulus() { return modulus; }

  @Override
  void acceptManagedObject(ManagedObject managedObject)
  {
    com.unbound.kmip.object.PublicKey kmipPublicKey = (com.unbound.kmip.object.PublicKey)managedObject;
    try
    {
      X509EncodedKeySpec spec = new X509EncodedKeySpec(kmipPublicKey.keyBlock.buf);
      KeyFactory kf = SystemProvider.KeyFactory.getInstance("RSA");
      RSAPublicKey rsa = (RSAPublicKey) kf.generatePublic(spec);
      modulus = rsa.getModulus();
      publicExponent = rsa.getPublicExponent();
    }
    catch (InvalidKeySpecException e) { throw new ProviderException(e); }
  }


  static TemplateAttribute getTemplate(String name, KeyParameters kp)
  {
    TemplateAttribute template = new TemplateAttribute();
    if (kp!=null)
    {
      if (name==null) name = kp.getName();
      template.attrs.add(new BoolAttribute(KMIP.Tag.CKA_ENCRYPT, kp.isAllowEncrypt()));
      template.attrs.add(new BoolAttribute(KMIP.Tag.CKA_VERIFY, kp.isAllowVerify()));
      template.attrs.add(new BoolAttribute(KMIP.Tag.CKA_WRAP, kp.isAllowWrap()));
      template.attrs.add(new BoolAttribute(KMIP.Tag.CKA_TRUSTED, kp.isTrusted()));
    }
    else template.attrs.add(new IntAttribute(KMIP.Tag.CryptographicUsageMask,
  KMIP.CryptographicUsageMask.Encrypt |
        KMIP.CryptographicUsageMask.Verify |
        KMIP.CryptographicUsageMask.WrapKey));

    template.attrs.add(new EnumAttribute(KMIP.Tag.CryptographicAlgorithm, KMIP.CryptographicAlgorithm.RSA));
    if (name!=null) template.attrs.add(new Name(name));

    return template;
  }

  static KMIPRSAPublicKey importKey(KMIPSession session, String name, RSAPublicKey keyValue, KeyParameters kp)
  {
    long uid = 0;
    Log log = Log.func("KMIPRSAPrivateKey.importKey").end(); try
    {
      RegisterRequest req = new RegisterRequest();
      req.objectType = KMIP.ObjectType.PublicKey;
      req.template = getTemplate(name, kp);

      com.unbound.kmip.object.PublicKey mo = new com.unbound.kmip.object.PublicKey();
      req.object = mo;
      mo.keyBlock.formatType = KMIP.KeyFormatType.X_509;
      mo.keyBlock.buf = keyValue.getEncoded();
      mo.keyBlock.algorithm = KMIP.CryptographicAlgorithm.RSA;

      uid = register(session, req);
      return new KMIPRSAPublicKey(session, uid);
    }
    catch (Exception e) { log.failed(e); throw e; } finally { log.leavePrint().logHex("UID", uid).end(); }
  }
}