Cryptography and Network Security

A loss of integrity is the unauthorized modification or destruction of information.

A common technique for masking contents of messages or other information traffic so that opponents can not extract the information from the message is __________ .

Integrity can apply to a stream of messages, a single message, or selected fields within a message.

Information security and network security are subsets of cybersecurity.

Security services implement security policies and are implemented by security mechanisms.

An active attack attempts to alter system resources or affect their operation.

_________ is a branch of mathematics that deals with the transformation of dat A.

the emphasis in dealing with active attacks is on prevention rather than detection.

Security attacks are classified as either passive or aggressive.

Passive attacks are very easy to detect because they involve alteration of the dat A.

Data authenticity assures that private or confidential information is not made available or disclosed to unauthorized individuals.

_______ is the collection of tools, policies, security concepts, security safeguards, guidelines, risk management approaches, actions, training, best practices, assurance, and technologies that can be used to protect the cyberspace environment and organization and users' assets.

the OSI security architecture focuses on security attacks, mechanisms, and services.

the OSI security architecture focuses on security attacks, mechanisms, and services.

the denial of service prevents or inhibits the normal use or management of communication facilities.

the connection-oriented integrity service addresses both message stream modification and denial of service.

Cybersecurity strives to ensure the attainment and maintenance of the security properties of the organization and users' assets against relevant security risks in the cyberspace environment.

Authentication exchange is the use of a trusted third party to assure certain properties of a data exchange.

__________ involves the passive capture of a data unit and its subsequent retransmission to produce an unauthorized effect.

A loss of __________ is the unauthorized disclosure of information.