WiFi's access security is better, and if the identity card itself is not good, everything is for nothing. The certificate (code, certificate, key) is authenticated."Keys.", the key is lost, copied, and kept unreplaced for a long time. Many security incidents in reality are not due to problems with authentication systems but to leaks, weak passwords, certificate expirys or poor key management. This article deals with WiFi access security at the core of identity certification, focusing on password, certificate and key management.
Password secure: strengthen the weakest link
Passwords are the most common authentication documents and the most problematic link. Weak passwords (123456, birthday, name spelling) can be guessed; passwords remain unreplaced for long periods of time and are available after leaking; passwords are reused between multiple systems, one system leaks, and others suffer as a result. WiFi access security certifications have to implement cryptographic strategies: mandatory password complexity, prohibition of frequent weak orders, support for periodic replacements, locking and warning failures in continuous authentication. More importantly, account codes need to be stored and transmitted safely, passwords cannot be stored explicitly or transferred, and passwords cannot be sent out of order, and password libraries should be prevented from being used directly after leakage.
Certificate management: covering the entire life cycle
Certificate administration covers the full life cycle using a certificate certification scenario. Certification issuances are regulated by processes that ensure that certificates are issued to the right users and equipment; certificates must be valid and automatically updated before expiry, avoiding their expiration and rendering them inaccessible to users; certificates should be cancelled in time when equipment is out of service and staff members leave their jobs so that they are not used; private keys should be properly preserved, leaking private keys equal to failing certificates, requiring timely revocation and reissuance.
Key management: Protect the foundation of the authentication system
The authentication system has a number of keys, such as the shared key between the Radius server and network equipment, the signature key for the authentication server, encryption key, etc. If they are poorly managed, the attacker can fake the authentication results and fake the authentication server. Key management is to do: the key uses high-intensity algorithms and sufficient length; the key is stored separately and managed according to functional classification; the key rotates regularly to avoid long-term use of the same key to increase exposure risk; access to the key is controlled by authorized persons only. Keys are available throughout WiFi to the identification security system."Last insurance."- You gotta keep an eye on it.
Safe and secure risk scenarios and responses
Risk-based scenarios include: staff entering account codes on WiFi for fishing; equipment lost or loaned resulting in certificates being used by others; departures not recovered in time; and leaking of internal keys. Responses to these scenarios are required: documents stored and transmitted encrypted; equipment lost to remote write-off certificates; separations require a combination of account numbers and certificates; disclosure is quickly cancelled and replaced.
Turning evidence management into a system
Security is not only a system function but also a management system. Clear password strategy, certificate management process, key custody code; designation of responsible departments and duty holders for record management; regular security checks and training to keep users sensitive to passwords and certificates; emergency response processes that are leaked on evidence; quick disposal when problems arise. WiFi access security authentication documentation, the essence of which is"Technology+system"A two-pronged approach, technology-based ownership and a system of accountability are indispensable without one.
WiFi access security clearances, core of which are:"Passwords are strong, certificates are managed throughout their life cycle, keys are rotated, risk scenarios are responded to and management is institutionalized". The key is authenticated, the key is secured, and the lock is meaningful. Using secure access to passwords, certificates, keys, three categories of security, WiFi access authentication is a real way to hold the network's door, not"Lock the door and hang the key on it."。