Free software1 sections · 2 min readBy Dezső Mező.mdFree softwareSigilock
Sigilock checks how strong your passwords are and whether they have been breached, without ever sending them anywhere. It combines local entropy and reuse analysis with the HIBP k-anonymity pattern: the SHA-1 hash is split into prefix and suffix, only the prefix is queried, and the suffix is matched on-device. It is a from-scratch, dependency-light build covered by 19 tested assertions that you can download and run locally.
01About the app
Secure-by-design thinking - applied k-anonymity
What to take away
- Local entropy + reuse analysis plus the HIBP k-anonymity pattern: SHA-1 split into prefix/suffix, the suffix matched on-device. 19 tested assertions.
- Download: Sigilock (ZIP)
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