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Unverified Commit db872232 authored by Abd ar-Rahman Hamidi's avatar Abd ar-Rahman Hamidi Committed by GitHub
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crypto/secp256k1: add checking z sign in affineFromJacobian (#18419)

The z == 0 check is hit whenever we Add two points with the same x1/x2
coordinate. crypto/elliptic uses the same check in their affineFromJacobian
function. This change does not affect block processing or tx signature verification
in any way, because it does not use the Add or Double methods.
parent 844485ec
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