Consider the following variant of el gamal encryption. let p = 2q + 1, let g be the group of squares modulo p (so g is a subgroup of z ∗ p of order q), and let g be a generator of g. the private key is (g, g, q, x) and the public key is (g, g, q, h), where h = g x and x ∈ zq is chosen uniformly. to encrypt a message m ∈ zq, choose a uniform r ∈ zq, compute c1 : = g r mod p and c2 : = h r + m mod p, and let the ciphertext be hc1, c2i. is this scheme cpa-secure? prove your answer.

Use a physical stopwatch to record the length of time it takes to run the program. calculate the difference obtained by calls to the method system. currenttimemillis() just before the start of the algorithm and just after the end of the algorithm. calculate the difference obtained by calls to the method system. currenttimemillis() at the start of the program and at the end of the program so that the elapsed time includes the display of the result. use the value returned by the method system. currenttimemillis() just after the end of the algorithm as the elapsed time.

100 pts. first person gets brainliest

Why is a multiview sketch drawinf different from other sketches like isometric, two point, and oblique