Types of attacks:
Types of attack
|
Method followed
|
1.
Cipher text only
|
a)
Encryption Algorithm
b)Cipher text to be
decoded
|
2. Known plain text
|
a)Encryption Algorithm
b)Cipher text to be
decoded
c)One or more plain text-cipher
text pair with the secret key
|
Some Terminology:
·
Vulnerability:
It
is the weakness in the security system like in procedures, design or
implementation that might be exploited to cause harm or loss.
·
Attack:
Attack
is an assault on system security that derives from an intelligent threat to
violate security services and security policies of the system.
o Threat:
A
potential for violation of security which exist when there is a circumstance,
capability, action or event that could breach security and cause harm is known
as Threat.
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