IEC 62443
IEC 62443-4-2:2019 technical security requirements for IACS components – IEC 62443

IEC 62443 CR 1.7: Strength of password-based authentication

What does CR 1.7 require?

Where a component authenticates by password it must, itself or through integration with a system that does, enforce configurable password strength based on internationally recognised and proven password guidance (SL 1). RE 1 (SL 3): for human users, block reuse of a password across a configurable count of generations and enforce minimum and maximum password lifetimes in line with common industry practice, and it should be able to warn the user, a configurable time before expiry, that the password needs changing. RE 2 (SL 4): enforce minimum and maximum lifetimes for every user, human, software process or device.

Maintained by Gerard BlokdykControl text last updated

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