This architecture improves web application security by inspecting request headers before the request reaches the web server. The process begins when a legitimate user sends a request through the web browser. The system extracts the request headers and encrypts them using AES 128-bit encryption to protect the header information during transmission. The encrypted headers are then sent to the detection server. At this stage the detection server verifies the encryption and decryption keys to ensure that the request headers come from a valid source. After successful verification the system decrypts the request headers and performs header inspection.
The inspection process compares the request header values with the signature database. This database stores known suspicious patterns and attack signatures. If the request header matches a malicious signature the system can detect the request as an attack. If the request does not match any malicious pattern the system forwards it as clean traffic to the web server. This architecture helps detect malicious requests at an early stage. It reduces unnecessary processing at the web server and strengthens protection against forged request headers. It also supports a more secure communication process by combining encrypted header transmission with signature based detection.
After successful verification the system decrypts the request data and performs several inspection processes including pattern inspection length inspection and string relevancy checking. Pattern inspection identifies suspicious characters abnormal structures and known malicious query patterns. Length inspection checks whether the query string exceeds normal request behaviour while string relevancy checking verifies whether the query string is meaningful and consistent with expected application usage. The inspected query string is then compared with the query string signature database which stores known attack patterns and suspicious request structures. If the query string matches a malicious signature the system detects the request as an attack and if the query string passes all inspection stages the system forwards it as clean traffic to the web server. This architecture supports early detection of malicious query string manipulation reduces unnecessary processing at the web server and strengthens protection against automated application-layer attacks.
