Encryption, Cybersecurity.
to produce a cipher message of: C1=r.G and then the next with: C2=r.Y+M and where M is matched to a point on the elliptic curve. Now Alice receives (C1 and C2), and computes: M=C1-x.C2 As C and S will be points on the elliptic curve, this will be done with a point subtraction operation. Overall