Question: [ 2 5 ] 4 . Consider the following ECC curve E : Y 2 = x 3 + 2 3 1 x + 4

[25]4. Consider the following ECC curve E :
Y2=x3+231x+473,p=17389,q=1321,G=(11259,11278)inE(Fp).
A. Assume the signing key of Alice is sk=542. What is her corresponding public key pk?
What is her signature on the hash of a message H(m)=644 with the ephemeral key
k=847?
B. Assume the public key of Bob is pk=(14594,308). What is his private key sk?(you
can use any method to find it, but describe it in details). Use his private key sk that you
found to forge his signature on the hash of a message H(m)=516 using the ephemeral
key k=365.
[25]4. Consider the following ECC curve E : Y2=x3+231x+473,p=17389,q=1321,G=(11259,11278)inE(Fp). A. Assume

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