refactor(auth): authHash to Argon2id-MODERATE with versioned distinct salt#862
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rohan-chaturvedi merged 1 commit intofeat/org-sso-gatingfrom Apr 27, 2026
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… salt Bump passwordAuthHash from INTERACTIVE (~64MiB / ~100ms) to MODERATE (~256MiB / ~1s) and prefix its salt input with "auth-v1:". Symmetric work factor with deviceVaultKey, explicit domain separation, no change to deviceKey derivation. Tests pass (32/32).
rohan-chaturvedi
approved these changes
Apr 27, 2026
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Bumps
passwordAuthHashfrom INTERACTIVE (~64MiB / ~100ms) to MODERATE (~256MiB / ~1s) and prefixes its salt input with"auth-v1:".deviceKey, instead of being ~6× cheaper to brute-force from a DB dump.deviceKeyderivation untouched — existingwrapped_keyringblobs decrypt unchanged.authHashis net-new on this branch (no prod data to migrate).Net diff: -20/+9 in
frontend/utils/crypto/users.ts.