Code reviewMediumcr-p115

Subject SecurityLevel Senior~18 minCommon in Security interviewsIndustries Software development

Question

Review this webhook signature verification.

What a strong answer looks like

Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix — specific and kind.

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Code to reviewpython

1expected = hmac.new(secret, body, 'sha256').hexdigest()2if signature == expected:3    process(body)

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