Babington Plot + Intro Flashcards
The study of making and breaking secrets codes/messages
cryptology
Writing or creating secret codes and messages and ciphers to keep information secret
cryptography
The practice of breaking or solving codes and ciphers to understand hidden information
Cryptanalysis
Turning plaintext into coded text to hide its meaning
Encrypt
Converting coded text back to the plaintext
Decrypt
An original message that has not been encrypted
Plaintext
The coded version of the plaintext after being encrypted
ciphertext
A method or system used to code and decode messages
cipher
When secret words and messages are replaced with other words or symbols to hide their meaning
code
An old cryptography system that combined both codes (for whole words) and ciphers (for individual letters)
nomenclator
To hide a message within something else so that its existence is not obvious
Ex 1) hiding a secret code in the color pattern of an image pixel by pixel
Ex 2) Hiding a message by writing it in between the lines of an innocent letter using invisible ink
Steganography
Give at least 2 examples of steganography.
***Be creative!
A cipher where each letter in the message by a certain number of positions in the alphabet
caesar cipher
Cipher where each letter of the plaintext is always replaced by the same substitute letter
Monoalphabetic Substitution
Shuffled or switched version of the alphabet used to make a secret code
cipher alphabet
the steps or rules used to break a secret code
algorithm
A secret piece of information needed to unlock a coded message
key
To figure out the code and read the secret message
crack
A code where the letters of a message are mixed up
transposition
When you guess of what part the secret message says, used to help solve the code
crib
A code where the alphabet is flipped, so for example A becomes Z
atbash cipher
A way of breaking code by looking at which letters show up the most
frequency analysis
A way of breaking code by looking at which letters show up the most
Railfence Cipher
