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used during both the encryption and decryption processes

closely related to the disciplines of cryptology and cryptanalysis

means of altering data from a readable form to a protected form and back to the readable form.

a mathematical formula designed specifically to obscure the value and content of data.

the data that needs to be protected.

the mathematical algorithm that takes plaintext as the input and returns ciphertext

the encrypted, or unreadable, version of the plaintext.

the mathematical algorithm that takes ciphertext as the input and decodes it into plaintext

the value known to the sender that is used to compute the ciphertext for the given plaintext.

the value known to the receiver that is used to decode the given ciphertext into plaintext.

sometimes referred to as secret-key cryptography, uses the same key to encrypt and decrypt data.

one that uses the same key for
encryption and decryption.

Encrypt a group of bits as a single entity, inserting the plaintext to make it a block size multiple.

uses the same key to encrypt and decrypt a message, so both the sender and the receiver must know and use the same private key.

a method of encrypting text in which a cryptographic key and algorithm are applied to each binary digit in a data stream, one bit at a time.

employed for making uninformed cipher text

employed for increasing the redundancy ofthe plain text over the foremost a part of the cipher text to create it obscure.

method in which a message is transformed to conceal its real meaning.

encrypts a message by printing it in reverse order.

the process of translating plain text data into something that appears to be random and
meaningless

the process of converting ciphertext back to plaintext.

a structure or scheme consisting of a set of algorithms that converts plaintext to ciphertext to encode or decode messages securely.

create a fixed length of bits known as a block cipher with a secret key

use a pair of keys, a public key associated with the creator/sender for encrypting messages

Defined by machine administrators who set policy for one computer

Defined by enterprise administrators who set policy for enterprise domains

Lowest administrable policy level

Defined by the runtime host for setting load-time policy. Cannot be administered