Ayesh

Joined 9 years ago

Karma
3,624
Submissions
991
Member since
Mar 16
Reach out at https://aye.sh :)
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Recent submissions

Comment · 6 days ago
There are discussion in CA/B forums for root and intermediate CAs with technically scoped issue policies.

For example, a government could be an intermediate CA, and have it technically limited only to issue certificates for `*.gov.CCTLD` domains.

Comment · 13 days ago
Let's not forget that it was mostly a manual process for most of us. Someone would obtain a cert, and email it to you, along with the private key. I'm sure old JIRA tickets would have so many "encrypted" zip files containing RSA 2048 keys and leaf certificates valid from 2008 to 2011.
Comment · 1 month ago
Such an excellently written articles with really nice interactive visualizations!
Comment · 2 months ago
If a registrar requires you to use their own nameservers, then they are no longer comparable to other registries.
Comment · 5 months ago
Comment · 8 months ago
I think the previous post is talking about a search that will find the sibling domain names that have obtained certificates with the same account ID. That is a strong indication that those domains are in the same certificate renewal pipeline, most likely on the same physical/virtual server.
Comment · 8 months ago
I'm surprised the ballot passed, unanimously even! I get that storing the DNS credentials in the certificate renewal pipeline is risky, but many DNS providers have granular API access controls, so it is already possible to limit the surface area in case the keys get leaked. Plus, you can revoke the keys easily.

The ACME account credentials are also accessible by the same renewal pipelines that has the DNS API credentials, so this does not provide any new isolation.

~It's also not quite clear how to revoke this challenge, and how domain expiration deal with this. The DNS record contents should have been at least the HMAC of the account key, the FQDN, and something that will invalidate if the domain is transferred somewhere else. The leaf DNSSEC key would have been perfect, but DNSSEC key rotation is also quite broken, so it wouldn't play nice.~

Is there a way to limit the challenge types with CAA records? You can limit it by an account number, and I believe that is the most tight control you have so far.

---

Edit: thanks to the replies to this comment, I learned that this would provide invalidation simply by removing the DNS record, and that the DNS records are checked at renewal time with a much shorter validation TTL.

Comment · 8 months ago
Yes, and it's not that long ago, or I aged really quickly.

For code signing certificates and EV certificates, (and OV certificates, if they are even alive), this is still the case.

Comment · 8 months ago
LetsEncrypt doesn't see your private key when you obtain the certificate. So no, it's not _really_ a juicy target.
Comment · 9 months ago
Comment · 10 months ago
Microsoft had a very fair shot at redeeming themselves, but with how Teams, GitHub and all the AI crap they push into GitHub and Windows, it's clear they have not changed one bit.
Comment · 10 months ago
I know that HN replies must carry some substance, unlike majority of Reddit comments. But I wanted to say that this comment read line a poem to me.
Comment · 10 months ago
Local meetups are very easy to get selected into, and they often have two or three speakers lined up, with a balance of speakers they know and are experienced, and new speakers.

Most of the time, the organizers are squeezed to find a speaker, so you are pretty much guaranteed to be offered a slot if you just ask the host.

Comment · 10 months ago
I imagine it'll go against your talk getting into the shortlist.

But there are some conferences that ask and respect your preference whether you'd like the video recording to have your face or just the audio. But I have yet to see a conference that go as far as asking the audience to not take photos of the presenter, so it's pretty much moot if you do not want your photos published at all.

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