Remove the DSA minimum key size option (#646)

Documents https://github.com/go-gitea/gitea/pull/40332 for main, which removes SSH DSA key support. Drops the `DSA` option of `[ssh.minimum_key_sizes]` from the current docs in all three languages. Draft until the Gitea PR merges.

_Written by Claude (Opus 5.5)._

Reviewed-on: https://gitea.com/gitea/docs/pulls/646
Reviewed-by: Lunny Xiao <[email protected]>
Co-authored-by: silverwind <[email protected]>
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silverwind authored and Lunny Xiao committed 2026-11-12 18:22:57 +00:00
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@@ -811,7 +811,6 @@ Define allowed algorithms and their minimum key length (use -1 to disable a type
- `ED25519`: **256**
- `ECDSA`: **256**
- `RSA`: **3071**: We set 3071 here because an otherwise valid 3072 RSA key can be reported as 3071 length.
- `DSA`: **-1**: DSA is now disabled by default. Set to **1024** to re-enable but ensure you may need to reconfigure your SSHD provider
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