Overview#

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 are important Cryptographic Primitive components in the design of many cryptographic protocols, and are widely used to implement encryption of bulk data.

Block cipher mode of operation#

There are several different 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:

• ARIA
• Block Cipher Mode
• Blowfish
• CCM
• Camellia
• Cipher
• Cipher Block Chaining
• Ciphertext stealing
• Electronic Code Book
• GOST
• Galois-Counter Mode
• Initialization Vector
• Key wrapping
• NIST.SP.38
• NIST.SP.800-38
• Padded
• Record Protocol
• SHA-2
• SHA256
• Stream Cipher
• Symmetric Key Cryptography
• Symmetric cipher
• Tweakable Block Cipher
• XorEncryptXor

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• [#1] - Block cipher - based on information obtained 2015-12-07