Categorii: Tot - security - encryption - passwords - policies

realizată de bish 55 7 ani în urmă

248

s

Safeguarding critical aspects of operating systems involves several key areas: software, communication lines and networks, hardware, and data. The distinction between mechanisms and policies is fundamental, where policies dictate the desired outcomes and mechanisms provide the means to achieve them.

s

Security in Operating Systems

Security and protection

Protection mechanisms implement security policies
Protection is a mechanism
Security is a policy

what are we protecting

Software
Hardware
Data
Communications lines and networks

security goals

Integrity
Confidentiality
Availability

Mechanisms vs Policies

Policies determine what will be done
Mechanisms determine how to do something

impotant security mechanisms

Access control mechanisms
Encryption
Authentication
Passwords
Use of Passwords
Attacks on Passwords
Password Selection Criteria

breaches

Vulnerability
Exposure
Threats