bool Sqlite::IsFileEncrypted(const char *DBfilename) {
    FileIn in(DBfilename);

    if (!in) {
        return false;
    }

    String SqlVersion = "SQLite format 3";
    int SqlVersionLength = SqlVersion.GetCount();
    in.Seek(0);
    String version = in.Get(SqlVersionLength);
    in.Close();

    return (!version.IsEqual(SqlVersion));
}

...
        int errCode = sqlite3db.GetErrorCode();
        String errMsg = Format("[ %s&&Error: %d (%s)]", t_("Loading the database has failed!"), errCode, sqlite3db.GetErrorCodeString());
        if (SQLITE_NOTADB == errCode) {
            errMsg = t_("The database is encrypted but decryption failed!&[= Did you use the correct password?");
        }
        ErrorOK(errMsg);
...

	int  ChangePassword(const String& password, int cipher = CIPHER_SQLCIPHER);
	int  CheckDBAccess();
	bool Open(const char *filename, const String& password = Null, int cipher = CIPHER_SQLCIPHER);
...
	enum Ciphers {
		CIPHER_CHAHA2020_SQLEET,
		CIPHER_CHAHA2020_DEFAULT,
+		CIPHER_AES256,
+		CIPHER_SQLCIPHER
	};

int Sqlite3Session::SetDBEncryption(int cipher) {
	// "default:cipher" => use SQLCipher during the entire lifetime of database instance
	// CIPHER_CHAHA2020_SQLEET settings are backward compatible with the previous sqleet implementation in the U++
	// Note: It is not recommended to use legacy mode for encrypting new databases. It is supported for compatibility
	// reasons only, so that databases that were encrypted in legacy mode can be accessed.

	int retcode = SQLITE_ERROR;
	switch (cipher) {
		case CIPHER_CHAHA2020_DEFAULT: {
			int value = sqlite3mc_config(db, "default:cipher", CODEC_TYPE_CHACHA20);
			if (value != -1)
				value = sqlite3mc_config_cipher(db, "chacha20", "kdf_iter", 64007);
			if (value != -1)
				value = sqlite3mc_config_cipher(db, "chacha20", "legacy", 0);
			if (value != -1)
				value = sqlite3mc_config_cipher(db, "chacha20", "legacy_page_size", 4096);
			if (value != -1)
				retcode = SQLITE_OK;
			} break;
		case CIPHER_CHAHA2020_SQLEET: {
			int value = sqlite3mc_config(db, "default:cipher", CODEC_TYPE_CHACHA20);
			if (value != -1)
				value = sqlite3mc_config_cipher(db, "chacha20", "kdf_iter", 12345);
			if (value != -1)
				value = sqlite3mc_config_cipher(db, "chacha20", "legacy", 1);
			if (value != -1)
				value = sqlite3mc_config_cipher(db, "chacha20", "legacy_page_size", 4096);
			if (value != -1)
				retcode = SQLITE_OK;
		} break;
+		case CIPHER_AES256: {
+			int value = sqlite3mc_config(db, "default:cipher", CODEC_TYPE_AES256);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "aes256", "kdf_iter", 4001);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "aes256", "legacy", 0);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "aes256", "legacy_page_size", 0);
+			if (value != -1)
+				retcode = SQLITE_OK;
+		} break;
+		case CIPHER_SQLCIPHER:
		default: {
+			int value = sqlite3mc_config(db, "default:cipher", CODEC_TYPE_SQLCIPHER);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "sqlcipher", "kdf_iter", 256000);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "sqlcipher", "legacy", 0);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "sqlcipher", "legacy_page_size", 4096);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "sqlcipher", "hmac_use", 1);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "sqlcipher", "hmac_pgno", 0);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "sqlcipher", "hmac_salt_mask", 58);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "sqlcipher", "kdf_algorithm", 2);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "sqlcipher", "hmac_algorithm", 2);
+			if (value != -1)
+				value = sqlite3mc_config_cipher(db, "sqlcipher", "plaintext_header_size", 16);
+			if (value != -1)
+				retcode = SQLITE_OK;
+		} break;
	}
	return retcode;
}