CyberSecurity

CyberSecurity

1. Encyrption

   • Substitution Cipher – a simple cipher where each letter is replaced by a different letter
   • Caesar Cipher – a simple cipher, where each letter is shifted a number of places up the alphabet
   • Cracking – to read encrypted data without being given the key beforehand
   • Brute Force – crack a cipher by trying every possible key until successful
   • Plaintext – the unencrypted data Ciphertext – the encrypted data Key – some information needed to encrypt/decrypt the data
   • Statistical Attack – crack a cipher by using statistics and estimates of the most likely values