Examples of java.security.PublicKey

java.security.PublicKey

A public key. This interface contains no methods or constants. It merely serves to group (and provide type safety for) all public key interfaces. Note: The specialized public key interfaces extend this interface. See, for example, the DSAPublicKey interface in java.security.interfaces. @see Key @see PrivateKey @see Certificate @see Signature#initVerify @see java.security.interfaces.DSAPublicKey @see java.security.interfaces.RSAPublicKey @version 1.33 05/11/17

      }
      return true;
    }


    // Get public key
    PublicKey publickey = getPublicKey();


    return validate(publickey, identity);
  }

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      KeyPairGenerator keyGen = KeyPairGenerator.getInstance(ALGORITHM);
      keyGen.initialize(DH_SPEC);
      KeyPair keypair = keyGen.generateKeyPair();


      privateKey = keypair.getPrivate();
      PublicKey publicKey = keypair.getPublic();


      return publicKey.getEncoded();
    } catch (NoSuchAlgorithmException e) {
      throw new CryptoException(e);
    } catch (InvalidAlgorithmParameterException e) {
      throw new CryptoException(e);
    }

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    }
    try {
      X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(
          peerPublicKeyBytes);
      KeyFactory keyFact = KeyFactory.getInstance(ALGORITHM);
      PublicKey publicKey = keyFact.generatePublic(x509KeySpec);


      KeyAgreement ka = KeyAgreement.getInstance(ALGORITHM);
      ka.init(privateKey);
      ka.doPhase(publicKey, true);
      byte[] secret = ka.generateSecret();

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    try{      
          BigInteger  other_dh_y = bytesToBigInteger( buffer, 0, DH_SIZE_BYTES );
          
          KeyFactory dh_key_factory = KeyFactory.getInstance("DH");
                
        PublicKey other_public_key = dh_key_factory.generatePublic( new DHPublicKeySpec( other_dh_y, DH_P_BI, DH_G_BI ));
              
        key_agreement.doPhase( other_public_key, true );
        
        secret_bytes = key_agreement.generateSecret();

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    byte[]    data,
    byte[]    signature )
  
    throws CryptoManagerException
  {
    PublicKey  pub = CryptoECCUtils.rawdataToPubkey( public_key );
    
    Signature sig = CryptoECCUtils.getSignature( pub );
    
    try{
      sig.update( data );

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    * @throws KeyResolverException
    */


   public PublicKey getPublicKey() throws KeyResolverException {


      PublicKey pk = this.getPublicKeyFromInternalResolvers();


      if (pk != null) {
         if (log.isLoggable(java.util.logging.Level.FINE))                                     log.log(java.util.logging.Level.FINE, "I could find a key using the per-KeyInfo key resolvers");


         return pk;

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                  // if we do not have storage resolvers, we verify with null
                  StorageResolver storage = null;


                  if (keyResolver.canResolve((Element) currentChild,
                                             this.getBaseURI(), storage)) {
                     PublicKey pk =
                        keyResolver.resolvePublicKey((Element) currentChild,
                                                     this.getBaseURI(),
                                                     storage);


                     if (pk != null) {
                        return pk;
                     }
                  }
               } else {
                  for (int k = 0; k < this._storageResolvers.size(); k++) {
                     StorageResolver storage =
                        (StorageResolver) this._storageResolvers.get(k);


                     if (keyResolver.canResolve((Element) currentChild,
                                                this.getBaseURI(), storage)) {
                        PublicKey pk =
                           keyResolver.resolvePublicKey((Element) currentChild,
                                                        this.getBaseURI(),
                                                        storage);


                        if (pk != null) {

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                  StorageResolver storage = null;


                  if (keyResolver.engineCanResolve((Element) currentChild,
                                                   this.getBaseURI(),
                                                   storage)) {
                     PublicKey pk =
                        keyResolver
                           .engineResolvePublicKey((Element) currentChild, this
                              .getBaseURI(), storage);


                     if (pk != null) {
                        return pk;
                     }
                  }
               } else {
                  for (int k = 0; k < this._storageResolvers.size(); k++) {
                     StorageResolver storage =
                        (StorageResolver) this._storageResolvers.get(k);


                     if (keyResolver.engineCanResolve((Element) currentChild,
                                                      this.getBaseURI(),
                                                      storage)) {
                        PublicKey pk = keyResolver
                           .engineResolvePublicKey((Element) currentChild, this
                              .getBaseURI(), storage);


                        if (pk != null) {
                           return pk;

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         os.println("KeyName(" + i + ")=\"" + x.getKeyName() + "\"");
      }


      for (int i = 0; i < ki.lengthKeyValue(); i++) {
         KeyValue x = ki.itemKeyValue(i);
         PublicKey pk = x.getPublicKey();


         os.println("KeyValue Nr. " + i);
         os.println(pk);
      }

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      }


      try {
         DSAKeyValue dsaKeyValue = new DSAKeyValue(this._dsaKeyElement,
                                                   BaseURI);
         PublicKey pk = dsaKeyValue.getPublicKey();


         return pk;
      } catch (XMLSecurityException ex) {
    //do nothing
      }

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