Please answer question 3. Questions 1 and 2 are optional. I would appreciate your help. Thank you

The so-called Dual_EC_DRBG pseudorandom generator (PRG) operates in the following simplified manner in order to incrementally generate blocks of pseudorandom bits r1,r2, : - The PRG is initiated by randomly selecting two (2-dim) points P,Q in a given elliptic curve over a given prime field size p, so that for any integer t the points Pt,Qt are well-defined. - Starting from an initial random seed s0 in order to generate the k-th pseudorandom block rk : - the PRG's internal secret state sk is updated to the x-coordinate of point Psk1; and - the PRG's k-th output rk is the x-coordinate of point Qsk1, appropriately truncated to a smaller bit-string. Yet, if the points P,Q are known to be related in the form of Qe=P, or if the output truncation rate is more than 1/2, then this PRG is known to be insecure - that is, a brute-force type of attack is likely to reveal the PRG's internal state sk. The rest is history... Read about the Dual_EC_DRBG design, standardization, implementation, adoption and abandonment from its Wikipedia entry and Matt Green's blog entry, and answer the following questions. (1) Describe briefly the controversy related to Dual_EC_DRBG. To get full credit you must identify all main stakeholders (organizations or companies rather than individuals), their involvement in the events, and their possibly conflicted goals. (2) Describe a major ethical concern regarding the issue at hand. To get full credit, articulate the concern clearly as well as how it relates to this particular issue. (3) Describe some of the professional or societal codes of ethics that relate to the events. Include