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( 1 point ) The speed of RSA hinges on the ability to do large modular exponentiations quickly. While e can be made small, d

(1 point) The speed of RSA hinges on the ability to do large modular exponentiations quickly.
While e can be made small, d generally cannot.
A popular method for fast modular exponentiation is the Square and Multiply algorithm.
Suppose that N=237 and d=125. We want to use the Square and Multiply algorithm to quickly decrypt y=196.
a) Express d as a binary string (e. a.10110110).
b) Supposing that initially r=y=196, enter the order of square operations (SQ) and multiply operations (MUL) that must be performed on r to compute yd mod N. Enter as a comma separated list,
for example SQ,MUL,SQ,SQ,SQ,MUL,SQ,SQ,MUL,SQ,SQ.
c) What is x=ydmodN ?
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