Cloudflare Nimbus CT log - duplicate certificate entries
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Bhushan Lokhande
Mar 10, 2025, 1:43:39 PM3/10/25
to Certificate Transparency Policy
Hi all,
I noticed quite some duplicate certificate entries on Cloudflare Nimbus CT log
- https://ct.cloudflare.com/logs/nimbus2026/
Example entries:
I noticed quite some duplicate certificate entries on Cloudflare Nimbus CT log
- https://ct.cloudflare.com/logs/nimbus2026/
Example entries:
Index: 66555937 (entry type: x509cert)
Certificate Fingerprint: d371721e3deb0fe16aa49e13a85754a883c2a7ef170dcd69b26415c8a6b58da4
Certificate Fingerprint: d371721e3deb0fe16aa49e13a85754a883c2a7ef170dcd69b26415c8a6b58da4
Index: 66556141 (entry type: x509cert)
Certificate Fingerprint: d371721e3deb0fe16aa49e13a85754a883c2a7ef170dcd69b26415c8a6b58da4
Just to confirm, Is this behavior expected?
Best regards,
Bhushan Lokhande
Certificate Fingerprint: d371721e3deb0fe16aa49e13a85754a883c2a7ef170dcd69b26415c8a6b58da4
Just to confirm, Is this behavior expected?
Best regards,
Bhushan Lokhande
Luke Valenta
Mar 10, 2025, 1:51:45 PM3/10/25
to Certificate Transparency Policy, Bhushan Lokhande
Hi Bhushan,
Thanks for reporting. Deduplication isn't perfect in the current nimbus logs implementation, so this behavior is expected (if not ideal).
Thanks for reporting. Deduplication isn't perfect in the current nimbus logs implementation, so this behavior is expected (if not ideal).
Best,
Luke
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