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fix: detect RSA public keys against modern OpenSSH (issue #48)#49

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hdm merged 1 commit into
runZeroInc:mainfrom
ralph-infrawatch:fix/issue-48-rsa-pubkey-hunt
Jun 22, 2026
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fix: detect RSA public keys against modern OpenSSH (issue #48)#49
hdm merged 1 commit into
runZeroInc:mainfrom
ralph-infrawatch:fix/issue-48-rsa-pubkey-hunt

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@ralph-infrawatch

@ralph-infrawatch ralph-infrawatch commented Jun 22, 2026

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Fixes #48. pubkey-hunt (and the other pubkey checks: pubkey-any, pubkey-bulkhalf) failed to detect RSA public keys against OpenSSH >= 8.8, which disables the SHA-1 ssh-rsa signature algorithm by default and advertises only rsa-sha2-256/rsa-sha2-512 in the server-sig-algs extension (RFC 8332 §3.3 / RFC 8308).

@hdm hdm merged commit 4de6a68 into runZeroInc:main Jun 22, 2026
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Unable to detect RSA pub keys

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