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Task: elliptic curve point addition on y² = x³ - 3x + 1 over GF(257), given points P(8,177) and Q(234,53). Solution: applied standard ECC point addition formulas to compute P + Q = (31, 245), flag is coordinate concatenation 31245.

$ ls tags/ techniques/
finite_fieldeccpoint_addition
elliptic_curve_point_addition
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