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TLS certificate validation should work with SHA-1 fingerprints too #479

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opened 2026-10-05 04:24:13 +02:00 by adam · 2 comments
adam commented 2026-10-05 04:24:13 +02:00
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Since upgrading to ZNC 1.6.0, I've been looking for server fingerprints on networks' websites. It seems that most are provided as SHA-1. It would be logical for ZNC to accept the more common representation of certificate fingerprints, especially if #866 never happens.

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Since upgrading to ZNC 1.6.0, I've been looking for server fingerprints on networks' websites. It seems that most are provided as SHA-1. It would be logical for ZNC to accept the more common representation of certificate fingerprints, _especially_ if #866 never happens. ## <bountysource-plugin> --- Want to back this issue? **[Post a bounty on it!](https://www.bountysource.com/issues/8636368-tls-certificate-validation-should-work-with-sha-1-fingerprints-too?utm_campaign=plugin&utm_content=tracker%2F1759&utm_medium=issues&utm_source=github)** We accept bounties via [Bountysource](https://www.bountysource.com/?utm_campaign=plugin&utm_content=tracker%2F1759&utm_medium=issues&utm_source=github). </bountysource-plugin> <!-- github-sync-id:57877261 -->
adam closed this issue 2026-10-05 04:24:13 +02:00
adam commented 2026-10-05 04:24:14 +02:00
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MD5 and SHA-1 are deprecated, so accepting them would be a bug.

I personally have this bash/zsh function

outdated, look at my blog for the current version

MD5 and SHA-1 are **deprecated**, so accepting them would be a bug. I personally have this bash/zsh function [outdated, look at my blog for the current version](https://mikaela.info/english/2015/02/24/znc160-ssl.html#checking-the-fingerprint-from-multiple-locations) <!-- github-comment-id:74613957 -->
adam commented 2026-10-05 04:24:15 +02:00
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I would also close this.

I would also close this. <!-- github-comment-id:138892371 -->
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Reference: adam/znc#479