Security Mechansim And Security Services - The OSI Security Architecture
The OSI Security Architecture As Introduced earlier to the OSI security Architecture in previous Blog Posts http://hackups.blogspot.in/2014/05/security-attacks-osi-security.html and a follow up to the Security Attacks post http://hackups.blogspot.in/2014/05/computer-security-overview.html . SECURITY MECHANISM Security mechanisms are used to implement security services. A process (or a device incorporating such a process) that is Designed to detect, prevent, or recover from a security Attack . There is no single mechanism that will support all the services required. However ,one particular element underlies many of the security mechanisms in use and that Element is Cryptographic Techniques. Under Security Mechanisms (X.800) the following two main mechanisms are known: SPECIFIC SECURITY MECHANISMS: The Specific Security Mechanisms include the following Encipherment, Data signatures, Access control, Data Integrity, Authentication Exchang...