3-DES and RSA - No one has formally "proven" that 3-DES or RSA are "secure". Given this, what evidence do we have that they are indeed secure
Try to explain with your own words (no google or wikipedia).
Encryption ( RSA) - Suppose Fred sees your RSA signaure on m1 and m2, (i.e., he sees (md1 mod n) and (md2 mod n).
How does he compute the signature on each of mj1 mod n (for positive integer j), m−1
1 mod n,
m1 ...
RSA signature - For RSA signature, let p = 17 and q = 43. Create a digital signature for the message m = 161, where the hashing function is the identity function and the computation at the signer's side is performed ...