1) (20 Points) In the following scheme, which is based on the use of one-time pad for Vigenre cipher, the key is a stream of random numbers between 0.25. (a) (10 Points) Encrypt the plaintext help me with my cybersecurity assignments with the key stream: 9 0 1 7 23 15 21 14 11 2 8 12 (b) (10 Points) Find a key so that the ciphertext generated in part a is decrypted to a plaintext as follows: I do not need any help