, a Block cipher mode of operation is an algorithm
that uses a Block Cipher
to provide an information service such as confidentiality
or message Integrity
A Block Cipher by itself is only suitable for the secure cryptographic transformation (encryption or decryption) of one fixed-length group of bits called a block.
A Block cipher mode of operation describes how to repeatedly apply a Block Cipher's single-block operation to securely transform amounts of data larger than a block.
Common Block cipher mode of operation#
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