Jump to Navigation

Me on Twitter

  • RT @oldphotosinreal: Hong Kong’s Kowloon peninsula 1964 - 2016 https://t.co/OoMU5XtBWF 1 week 1 day ago
  • @ak_anneka super beau ! Ça sert à quoi ? 1 week 4 days ago
  • “un aéroport neutre en carbone c’est comme une kalashnikov de commerce équitable” https://t.co/hQ5rQIcorR #c'estpasfaux 3 weeks 6 days ago
  • Makes me laugh #development #javascript https://t.co/iI01D97IUv https://t.co/h1kFNOnOO8 6 weeks 3 days ago
  • RT @liamstack: This may be my favorite image from the pandemic https://t.co/bx8MZ3bGYX 7 weeks 1 day ago
  • RT @ThePracticalDev: Technology is the fastest-growing industry nowadays, which requires developers to keep up with all the improvements go… 7 weeks 1 day ago
  • Typical #antipattern in #mobile #French apps : blocking app access unless you update it. Don't they know about #API versioning ??? 7 weeks 4 days ago
  • RT @ArtifactsHub_: Ancient Egyptian dental work from 2000 BC https://t.co/9C0tGqu5wC 8 weeks 2 days ago
  • Excellent site about #batteries How to Prolong Lithium-based Batteries - Battery University - https://t.co/H8hUTm38qX 8 weeks 3 days ago
  • RT @SwiftOnSecurity: Breaking: CDC says fully-vaccinated people can turn off SMS 2FA, use the same password for everything again. 10 weeks 4 days ago

printkey

android A paper backup for your private key

Android keychainAndroid requires developers to sign their applications with a digital certificate and that each future release be signed with the same certificate.

Sadly, bad things happen when the developer (you) looses access to the certificate : he (you) will not be able to release updates for the application without it. NeverEver.

Android does not currently support multiple certificates per application so the best you could do would be to release a new app with the same name, in the hope your users will find a way to it by themselves.

As years go on, you will change your computer, wipe USB keys, reinstall OS, ...
So many dangerous operations for your digital certificates, hidden among millions of files !
If, like me, you are anxious at the idea of losing your certificates or passwords, just print a paper copy !
Although it is not invulnerable, paper should be less prone to mass erasing than a simple electronic file.

The idea is simplenot new, and you just need to know two commands to get a printable hard copy of your certificate.

Let's start.

Syndicate content