Author Archives: laurentb

Security of remote servers

Here is another example of bad randomness practices that lead to pretty serious issues (something like $15000 stolen). The interesting part, besides the bad programming practice of writing your own random function, is that the vulnerability is outside of the server. In a way, it’s similar to the “physical access” vulnerability. And even if your […]

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GPG encryption to multiple recipients

It is a little known feature of GPG: you can encrypt files to multiple recipients. Since it uses an intermediary key, the resulting file is not that much bigger. While it is mostly used for e-mails, I am currently using it for encrypted backups. After all, one of the issue of encrypted backups is that […]

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ISPs: raw speed vs. connectivity

I chose my current ISP on one criteria only: speed, especially upload speed. It’s Numericable fake fiber, i.e. fiber to the building. I really don’t care about the so-called “100 mega” download speed, but the upload speeds are at least 5 fives higher than standard DSL. However, you don’t get access to the Internet. Dynamic […]

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