Figure out the breaking time of key size 32, 56, 128, and 168 bits, if single decryption time is 1 μs and 10 –6 μs, respectively. In a public key system using RSA with the public keys e=5, n=35, Trudy...

Figure out the breaking time of key size 32, 56, 128, and 168 bits, if single decryption time is 1 μs and 10 –6 μs, respectively.

In a public key system using RSA with the public keys e=5, n=35, Trudy intercepts the ciphertext C=10. What is the plaintext M?