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@roblabla roblabla commented Jan 19, 2023

One of the certs in MS' root of trust has a serial number of length 21.

Bump it to 30 to be safe.

Link to the certificate: http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/d3eefbcbbcf49867838626e23bb59ca01e305db7.crt

See it on lapo.it

One of the certs in MS' root of trust has a serial number of length 21.

Bump it to 30 to be safe
@tarcieri
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I'm guessing the fix you actually want is #831.

This change would violate a MUST NOT in RFC5280:

https://www.rfc-editor.org/rfc/rfc5280#section-4.1.2.2

Conforming CAs MUST NOT use serialNumber values longer than 20 octets.

@tarcieri tarcieri closed this Jan 19, 2023
@roblabla
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Ah, yes, that seems to be the case.

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