What is the difference between ethics and integrity?

Clearly specify the essential difference between message confidentiality and message integrity with regard to?

• Please Clearly specify the essential difference between message confidentiality and message integrity with regard to data security in computer networks.

• Answer:

  Message confidentiality assures that a message cannot be read by anyone other than the intended recipients. Massage integrity assures that a message cannot be tampered with without the intended recipients knowing. For example, suppose I need to tell you whether to attack or not. We could use a code where a particular number only you and I know means to attack and one less than that means not to attack. This provides message confidentiality. If someone intercepts a message, say, "51", they have no idea whether that means to attack or not. But it provides no message integrity. If someone knows I'm going to tell you not to attack and knows the message is "51", he can replace it with "52" and change it to attack. If we use two completely different numbers, one for attack and one for not to attack, we get both confidentiality and integrity. Someone seeing the message, say again "51", couldn't know whether that was attack or not attack. He also could not change the message to mean the opposite, since he would have no clue what the other number was. Algorithms and methods that provide confidentiality are referred to as "encryption". Algorithms and methods that provide integrity are often referred to as "signature".