from tinyec import registry

curve $=$ registry.get$\_$curve$(\text{'}$secp$192$r$1\text{'})$

print$(\text{'}$curve:$\text{'},$ curve$)$

for k in range$(0,10)$:

p $=$ k $*$ curve.g

print$($f$"\{$k$\}*$ G $=(\{$p$.$x$\},\{$p$.$y$\})")$

print$("$Cofactor $=",$ curve.field.h$)$

print$(\text{'}$Cyclic group order $=\text{'},$ curve.field.n$)$

nG $=$ curve.field.n $*$ curve.g

print$($f$"$n $*$ G $=(\{$nG$.$x$\},\{$nG$.$y$\})")$

a$.$ Is the secp$192$r$1$ curve considered to be secure$?$

b$.$ What bit length for the curve prime number parameter p is recommended in

this section?

c$.$ Which curve on this webpage is referred to as the $$bitcoin curve$?$