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 rys.sommefeldt.com
Client-side TLS certificates and root certificate authorities - Rys Sommefeldt
| | adamu.jp
Creating a personal TLS certificate authority ยท adamu.jp
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| | [AI summary] The author details the process of creating a personal TLS certificate authority to secure internal services without exposing them to the public internet.
| | squanderingti.me
Certificates: A Primer - Squanderingtime/Chris Chandler
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| | A handy explanation for the fields in a digital certificate.
| | www.agwa.name
The Difference Between Root Certificate Authorities, Intermediates, and Resellers
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| | [AI summary] A technical deep dive explaining the hierarchy of SSL certificate providers, distinguishing between trusted root CAs, intermediates, and resellers to clarify which entities actually control the integrity of the internet's certificate ecosystem.
| | sgued.fr
Is this certificate DER or PEM encoded It turns out, both at the same time
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| X509 certificate can be encoded either as DER or PEM. DER encoding is an efficient binary format, while PEM encoding is a wrapper around the Base 64 DER encoding of the certificate. Usually, when dealing with a specific certificate, you know beforehand whether it's encoded as DER or PEM. For example, in the opennssl CLI, you can give it the -inform parameter, which accepts either DER or PEM. However, what if don't know the encoding of the certificate, can you figure it out on the fly?