}

    @Test
    @DisplayName("Should handle AES encryption operations")
    void testAESOperations() throws Exception {
        // Given
        byte[] key = new byte[16]; // 128-bit key
        byte[] iv = new byte[16]; // 128-bit IV
        byte[] plaintext = "This is test data for AES encryption test".getBytes();

        new SecureRandom().nextBytes(key);

        byte[] key2 = new byte[16];
        new SecureRandom().nextBytes(key1);
        new SecureRandom().nextBytes(key2);

        keyManager.storeSessionKey(sessionId1, key1, "AES");
        keyManager.storeSessionKey(sessionId2, key2, "AES");

        byte[] retrieved1 = keyManager.getRawKey(sessionId1);
        byte[] retrieved2 = keyManager.getRawKey(sessionId2);

                return "AES";
            }

            @Override
            public String getAppCipherKey() {
                return "1234567890123456"; // 16 bytes for AES
            }
        });

        // Create test cipher - use proper constructor with simple implementation
        InvertibleCryptographer cookieCipher = new InvertibleCryptographer("AES", "1234567890123456", null) {
            @Override

@DisplayName("CIFSUnsupportedCryptoException Tests")
class CIFSUnsupportedCryptoExceptionTest extends BaseTest {

    private static final String CRYPTO_ERROR_MESSAGE = "Unsupported cryptographic algorithm: AES-256-GCM";
    private static final String ALGORITHM_NAME = "AES-256-GCM";

    @Test
    @DisplayName("Default constructor should create exception with null message and cause")
    void testDefaultConstructor() {
        // Given & When

 * supporting various checksum algorithms including HMAC-MD5 and HMAC-SHA1 with AES.
 */
public class PacSignature {

    /**
     * Kerberos checksum type for HMAC-MD5 (ARCFOUR-HMAC).
     */
    public static final int KERB_CHECKSUM_HMAC_MD5 = 0xFFFFFF76;
    /**
     * Kerberos checksum type for HMAC-SHA1-96 with AES-128.
     */
    public static final int HMAC_SHA1_96_AES128 = 0x0000000F;
    /**

/**
 * Secure credential storage with encryption at rest.
 *
 * Provides secure storage of passwords and other sensitive credentials
 * using AES-GCM encryption with PBKDF2 key derivation.
 *
 * Features:
 * - Encrypts credentials at rest using AES-256-GCM
 * - Uses PBKDF2 for key derivation from master password
 * - Secure wiping of sensitive data
 * - Thread-safe operations
 * - Protection against timing attacks

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package kms

import (
	"context"
	"crypto/aes"
	"crypto/cipher"
	"crypto/hmac"
	"encoding/base64"
	"encoding/json"
	"errors"
	"strconv"
	"strings"
	"sync/atomic"

	"github.com/secure-io/sio-go/sioutil"
	"golang.org/x/crypto/chacha20"

                    cipherAlgorithm);
            inver = InvertibleCryptographer.createBlowfishCipher(fessConfig.getAppCipherKey());
        } else if ("des".equalsIgnoreCase(cipherAlgorithm)) {
            logger.warn("DES cipher is deprecated due to its 56-bit key size vulnerability. Please consider migrating to AES. algorithm={}",
                    cipherAlgorithm);

        }

        @Test
        @DisplayName("createEncryptionContext selects AES-CCM for SMB 3.0 and AES-GCM for SMB 3.1.1")
        void createEncryptionContext_happyDialects() throws Exception {
            byte[] sessionKey = new byte[16];
            byte[] preauth = new byte[16];

            // SMB 3.0 -> AES-128-CCM
            setField(transport, "smb2", true);

    }

    @Test
    @DisplayName("Should support AES-256 cipher constants")
    void testAES256CipherConstants() {
        // Verify AES-256 constants are defined
        assertEquals(0x0003, Smb2EncryptionContext.CIPHER_AES_256_CCM, "AES-256-CCM constant should be defined");
        assertEquals(0x0004, Smb2EncryptionContext.CIPHER_AES_256_GCM, "AES-256-GCM constant should be defined");