- What are the differences between message confidentiality and message integrity
- Reasons why some Internet entities might want secure communication
- Attributes of an 8-block cipher
- Symmetric Encryption vs Public Key Encryption
- Why does a Hash provide better message integrity then an Internet checksum?
- Monoalphabetic Cipher and Inverse Written in Python
- Block cipher lab
What are the differences between message confidentiality and message integrity? Can you have confidentiality without integrity? Can you have integrity without confidentiality?
- message confidentiality
- Two or more hosts communicate securely, typically using encryption. The communication cannot be monitored (sniffed) by untrusted hosts. The communication between trusted parties is confidential.
- message integrity
- The message transported has not been tampered with or altered. A message has integrity when the payload sent is the same as the payload received.
Sending a message confidentially does not guarantee data integrity. Even when two nodes have authenticated each other, the integrity of a message could be compromised during the transmission of a message.
Yes, you can have integrity of a message without confidentiality. One can take a hash or sum of the message on both sides to compare. Often we share downloadable files and provide data integrity using md5 hash sums.
This article is really helped me to understand the different between integrity and confidentiality