technology transfer, science communication, knowledge transfer, ICT specialist & trade journalism
  • technology transfer, science communication, knowledge transfer
  • articles, white papers, reports, manuals, FAQs, e-learning
  • market research, analysis, reporting
  • scripting, scraping, visualization
  • ICT specialist journalism productions, media training
  • tech community engagement
  • event programme management

Adrian Offerman is a computer engineer by origin, and has been working in technology transfer, science communication, knowledge transfer, and ICT specialist journalism for almost thirty years now.
His customers are Fortune Global 500 companies as well as specialized/niche firms, publishing houses, governmental agencies, scientific research institutes, and technology companies.
Most of his work involves open-source software and hardware, computer and network security, applied cryptography, internet technology and disruptive innovation.

Blog

The 47-day certificate: faster treadmill, same broken foundation

Written by: Adrian Offerman
Category: Blog

Managing TLS certificates has become pretty crazy: Over the years validity was cut down from several years to two years to one year to half a year now. In a few years it will be only a little more than one month, with the additional requirement to basically continuously prove domain control.

Since I'm not using Let's Encrypt over here, these days I have to re-submit a CSR to my certificate provider every half a year for every domain, prove domain ownership, install the new certificate (chain), and update my DANE/TLSA records. Soon continuous domain control validation will have to be added as an additional secondary process to the domain reactivation/renewal process.

Read more: The 47-day certificate: faster treadmill, same broken foundation

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