The next step is to find the letters at the opposite corners of the rectangle formed by the plaintext pair, starting with the ciphertext letter in the second square. For the first pair MC ...

For example, a key value of three would change the plaintext message “see you tonight” to the ciphertext message “vhh brx wrqljkw”. To decrypt the message, the process is reversed.

For example, a key value of 3 would change the plaintext message “see you tonight” to the ciphertext message “vhh brx wrqljkw”. To decrypt the message, the process is reversed. Firewalls ...

With the development of smart grid and the diversification of their applications, privacy-preserving multi-dimensional data aggregation has been widely studied because it can analyze users’ ...