Use this tool to master the cryptography techniques.
Basic Concepts
cryptography:
the art or science encompassing the principles and methods of transforming an intelligible message into one that is unintelligible, and then retransforming that message back to its original form
plaintext:
the original intelligible message
ciphertext:
the transformed message
cipher:
an algorithm for transforming an intelligible message into one that is unintelligible by transposition and/or substitution methods
key:
some critical information used by the cipher, known only to the sender & receiver
encipher (encode):
the process of converting plaintext to ciphertext using a cipher and a key
decipher (decode):
the process of converting ciphertext back into plaintext using a cipher and a key
cryptanalysis:
the study of principles and methods of transforming an unintelligible message back into an intelligible message without knowledge of the key. Also called codebreaking
Find us on Google+
