unsolved case 'Zodiac Killer ' in which at least five people were killed in California, USA from 1968 to 1974. I am. Zodiac '340 Cipher' cracked by code experts 51 years after it was sent to the SF ...
A known-plaintext attack (KPA) occurs when a hacker uses pairs of both encrypted and unencrypted data to figure out the encryption algorithm or key. In this attack, the hacker has access to both the ...