* saml.default.groups=user
 * saml.default.roles=user
 * </pre>
 *
 * <h2>Security Settings (Production)</h2>
 * <p>For production environments, consider enabling these security features:</p>
 * <pre>
 * saml.security.authnrequest_signed=true
 * saml.security.want_messages_signed=true
 * saml.security.want_assertions_signed=true
 * </pre>
 *

import org.codelibs.core.exception.ClassNotFoundRuntimeException;
import org.codelibs.core.exception.IORuntimeException;

/**
 * Utility for serializing objects with security protections.
 * <p>
 * This utility provides object serialization and deserialization with built-in
 * security protections against deserialization attacks. By default, it uses an
 * ObjectInputFilter to restrict which classes can be deserialized.
 * </p>
 * <p>

     */
    @Size(max = 1000)
    public String ldapProviderUrl;

    /**
     * LDAP security principal for binding to the LDAP server.
     * Used for authenticating with the LDAP server.
     */
    @Size(max = 1000)
    public String ldapSecurityPrincipal;

    /**
     * LDAP admin security principal for administrative operations.
     * Used for admin-level operations on the LDAP server.
     */

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.crypto;

import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.NoSuchAlgorithmException;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;

import static org.codelibs.core.stream.StreamUtil.split;

import java.io.FileInputStream;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.security.KeyStore;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManagerFactory;

        }
    }

    /**
     * Returns whether SIDs (Security Identifiers) should be resolved.
     * @return true if SIDs should be resolved, false otherwise
     */
    public boolean isResolveSids() {
        return resolveSids;
    }

    /**
     * Sets whether SIDs (Security Identifiers) should be resolved.
     * @param resolveSids true to resolve SIDs, false otherwise
     */

                // SECURITY NOTE: Basic authentication is enabled by default for compatibility.
                // For production, consider setting spnego.allow.basic to false.
                return getProperty(SPNEGO_ALLOW_BASIC, "true");
            }
            if (SpnegoHttpFilter.Constants.ALLOW_UNSEC_BASIC.equals(name)) {
                // SECURITY WARNING: Unsecure basic authentication is enabled by default.

    /** LDAP security principal configuration key. */
    public static final String LDAP_SECURITY_PRINCIPAL = "ldap.security.principal";

    /** LDAP admin security principal configuration key. */
    public static final String LDAP_ADMIN_SECURITY_PRINCIPAL = "ldap.admin.security.principal";

    /** LDAP admin security credentials configuration key. */

     * </p>
     */
    public DataSerializer() {
        kryoThreadLocal = ThreadLocal.withInitial(() -> {
            final Kryo kryo = new Kryo();
            // TODO use kryo.register for security
            // SECURITY WARNING: setRegistrationRequired(false) allows deserialization of arbitrary classes
            // which could potentially lead to remote code execution vulnerabilities.

- **Index Size**: Storage requirements for search indices
- **Crawl Sources**: URLs, file shares, databases being indexed
- **Custom Configurations**: URL patterns, security rules, metadata fields
- **Search Features**: Facets, suggestions, security filtering, ranking rules
- **Integration Points**: Applications consuming search APIs
- **User Permissions**: Access control and label configurations

### 2. Infrastructure Requirements