CyberCipher - Cryptography Tool Set

Affine Cipher

Affine cipher is a form substitution cipher that encrypts the numerical value of a letter by performing simple multiplicative and additive equations on it to obtain another letter corresponding to it; Encryption function: F(x) = (ax + b) (mod m), where a and b are mutually prime and m is the number of letters; Decryption function: F(x) = a-1(x - b) (mod m), where a-1 is the multiplicative inverse of a in the Zm group and m is the number of letters.

Origin Text

Key A

Key B (number)

Result Text

Shift Cipher

Shift cipher (Caesar cipher), one of the older symmetric encryption system, encrypts and decrypts strings of characters by shifting the letters by a certain amount of digits. To encrypt, all the letters in the plaintext are shifted backward (or forward) a fixed number of digits in the alphabet and then replaced with the ciphertext, vise versa.

Origin Text

Key (1 letter / 1 number)

Result Text

Vigenère Cipher

Vigenère cipher is an encryption method based on the Caesar cipher, an encryption algorithm that uses a series of Caesar ciphers to form a cipher alphabet, and belongs to a simple form of multi-table ciphers.

Origin Text

Keyword (pure text)

Result Text

Affine Cipher

Shift Cipher

Vigenère Cipher

Encrypt / Decrypt Histories