Overview#In cryptography, a Block Cipher is a deterministic algorithm operating on fixed-length groups of bits, called Block, with an unvarying transformation that is specified by a Symmetric Key. Block cipher mode of operation that are used.
Block Cipher operate on large blocks of digits with a fixed, unvarying transformation. This distinction is not always clear-cut: in some modes of operation, a Block Cipher primitive is used in such a way that it acts effectively as a Stream Cipher.
More Information#There might be more information for this subject on one of the following:
- Block cipher mode of operation
- Cipher Block Chaining
- Galois-Counter Mode
- Record Protocol
- Stream Cipher
- TLS 1.3