Explain how Cipher Block Chaining (CBC) operates.
What will be an ideal response?
After being encrypted, each ciphertext block gets "fed back" into the encryption process to encrypt the next plaintext block. Using CBC, each block of plaintext is XORed with the previous block of ciphertext before being encrypted. CBC is also dependent on the previous ciphertext block, making it much more difficult to break.
You might also like to view...
If a bulleted list displays across two pages, use the Keep ________ together command to display the entire list on the same page
A) lines B) paragraphs C) pages D) bullets
Users on a network segment report that they are unable to connect to a newly installed file server. The file server IP address settings are as follows: IP address: 10.0.10.254 Subnet Mask: 255.255.255.0 Default Gateway: 10.10.10.1 Which of the following changes should the server administrator make?
A. Change the IP address on the server to 10.10.0.254. B. Change the IP address on the server to 10.10.10.254. C. Change the default gateway on the server to 10.10.10.254. D. Change the subnet mask on the server to 255.255.0.0.