Assume that a and b share a long-term 256-bit aes key k. our key exchange protocol has two goals: (1) let a and b agree on a new fresh session key k, to be used for a current session, and (2) perform mutual authentication. n, is a nonce and k, is a new session key generated by b. assume that k and nb are of the same bit-length and both are always chosen at random. ex( ) denotes aes encryption of everything inside ) with key k. hmack denotes sha2-based hmac of everything inside ) using key h protocol: 1. a -> b: ek(a, b, "hello") 2. b -> a: ek(ks, nb, hmack (a, b, "hello"))3. a -> b: hmack(ks, nb,1)what (if any) are the vulnerabilities of this protocol? and, how can you fix them? again, keep your answers limited to 8-10 lines.

i'm so sorry that's not a question and this isn't an answer

the benefits of raising bc’s minimum wage to $15 through a

series of pre-announced staged increases far outweigh the likely

costs. claims that such an increase will lead to massive job losses

in low-wage sectors of the economy are not credible.

• an increase to $15 would result in some job losses. however,

the likely impact is less than a 1 per cent reduction in the overall

provincial employment rate, and a 7.6 per cent reduction in the

employment rate for those currently making between $10.25

and $15 per hour.

• the large job loss impacts predicted by some opponents of

minimum wages misrepresent the existing economic research. in

reading and using that research, it is important to recognize that

estimates showing job loss effects of minimum wage increases

apply only to teenagers. estimated effects for young adult and

adult workers range from insignificant to non-existent.

• focusing on teenage workers plays up an inaccurate stereotype

about who earns very low wages in bc and leads to exaggerated

claims about job losses. only 26 per cent of those currently making

between $10.25 and $12 are teenagers, and only 5 per cent

of those making between $12 and $15 are teenagers.