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Network Time Security: NTS articles overview
NTP, the Network Time Protocol, is the way most computers and mobile devices obtain their time through. NTS (Network Time Security) is to NTP what HTTPS is to HTTP. It also is as easy to upgrade as upgrading to HTTPS is these days: No effort for the client, just adding a certificate for the server.…
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Debugging NTS problems
Debugging is hard, debugging security protocols doubly so. And there are not many tools and how-to’s available for NTS yet. So, here’s a (short) list of NTS problems I have seen and some tricks for debugging them.
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NTS and dynamic IP addresses
Good news is that NTS relies on DNS names, no longer “naked” IP addresses. But what happens when the DNS name changes, pointing to a different IP address? A look at the protocol, the Chrony source, and the implications.
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Configuring an NTS-capable NTP server
The choice of Network Time Protocol (NTP) servers supporting NTS is still very limited. Here is some advice to get it to run smooth and trustworty.
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Array Thickening: More can be less
When turning flexible file formats into data structures, the consensus seems to be to avoid using arrays whenever possible. However, more arrays may reduce code and coding errors. A plea against the extinction of arrays.
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vcard4-ts: A TypeScript-first vCard parser
TypeScript is the amiable and helpful sibling of JavaScript, always there for you, whether you currently do want type safety or you don’t. So it was only natural to use it to make handling digital business cards easier. vCard4-ts is the result of this attempt.
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CompanyON: Serving as gutSTEIN
Our gift card solution for regional brick-and-mortar stores and restaurants has been successfully used in Stein am Rhein for almost a year. As of today, the local version of our gift card for Stein am Rhein, provided by the regional business association, also has a local name: gutSTEIN. The card has become an important asset…
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Contact Tracing — Quo Vadis?
How much we are all looking forward to returning to normal lives: Meeting friends, hugging family, a cool beer, culture. After more than a year, we really deserve it! However, there are still roadblocks in the form of a bloody virus and the countermeasures. Anyone promising a quick end is hailed as a saviour. (This…