CFB Mode in Block Ciphers Explained 🔐 – Security+ Overview

Cipher Feedback (CFB) is a mode of operation for block ciphers that allows for the encryption of data in units smaller than the block size of the cipher. It turns a block cipher into a stream cipher, allowing the encryption of individual bits or bytes rather than fixed-size blocks. CFB is commonly used in cryptographic applications to provide confidentiality for streaming data.

For the Security+ exam, understanding Cipher Feedback is relevant in the context of symmetric key encryption, block cipher modes of operation, and the secure transmission of data.  



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