fix(auth): compare configured API keys in constant time (#287) - #301
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David-patrick-chuks-02 merged 2 commits intoSep 6, 2026
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Closes #287
Summary of Changes
providedKey !== securityConfig.authApiKey) with a constant-time comparison helpersafeCompareKeyinsrc/common/http/api-key-auth.middleware.ts.safeCompareKeyconverts strings to utf8 buffers, rejects unequal lengths immediately, and usescrypto.timingSafeEqualto prevent timing side-channel attacks on API key validation.tests/api-key-auth.test.tswith test cases verifying rejection of near-miss keys (same length, single character difference) and keys of different lengths (short/long).Validation
tests/api-key-auth.test.ts: all 8 tests passing cleanly.