RunAs Radio

47 Day Certificates with Todd Gardner


Listen Later

The 47-day certificate is coming! While at NDC in Toronto, Richard received an update from Todd Gardner about his show last year: certificate authorities are moving toward SSL certificates that last only 47 days! Todd talks about the first decrease in duration that has already passed - as of March 2026, the longest duration certificate you can buy from certificate authorities is 200 days. At the core of these changes is the problem that certificate revocation just isn't working properly, so a short certificate lifespan is the effective solution. Short certificate lifespans make automation to replace certificates essential - and that's where CertKit and other tools come in!

Links

  • Lets Encrypt
  • ACME Client Implementations
  • CertKit
  • Apple's 398 Day Rule
  • Microsoft SHA-1 Retirement
  • Google Transparency Logs
  • Perfect Forward Secrecy
  • Recorded May 8, 2026

    ...more
    View all episodesView all episodes
    Download on the App Store

    RunAs RadioBy Richard Campbell

    • 4.6
    • 4.6
    • 4.6
    • 4.6
    • 4.6

    4.6

    82 ratings


    More shows like RunAs Radio

    View all
    Software Engineering Radio - the podcast for professional software developers by team@se-radio.net (SE-Radio Team)

    Software Engineering Radio - the podcast for professional software developers

    275 Listeners

    Hanselminutes with Scott Hanselman by Scott Hanselman

    Hanselminutes with Scott Hanselman

    380 Listeners

    .NET Rocks! by Carl Franklin and Richard Campbell

    .NET Rocks!

    38 Listeners

    The Changelog: Software Development, Open Source by Changelog Media

    The Changelog: Software Development, Open Source

    288 Listeners

    This Week in Tech (Audio) by TWiT

    This Week in Tech (Audio)

    3,061 Listeners

    Security Now (Audio) by TWiT

    Security Now (Audio)

    2,010 Listeners

    MacBreak Weekly (Audio) by TWiT

    MacBreak Weekly (Audio)

    2,014 Listeners

    Windows Weekly (Audio) by TWiT

    Windows Weekly (Audio)

    887 Listeners

    Tech News Weekly (Audio) by TWiT

    Tech News Weekly (Audio)

    1,073 Listeners

    Intelligent Machines (Audio) by TWiT

    Intelligent Machines (Audio)

    781 Listeners

    The a16z Show by Andreessen Horowitz

    The a16z Show

    1,096 Listeners

    Daily Tech News Show by Tom Merritt

    Daily Tech News Show

    1,394 Listeners

    Smashing Security by Graham Cluley

    Smashing Security

    316 Listeners

    .NET Rocks! by Carl Franklin and Richard Campbell

    .NET Rocks!

    243 Listeners

    The Stack Overflow Podcast by The Stack Overflow Podcast

    The Stack Overflow Podcast

    62 Listeners

    2.5 Admins by The Late Night Linux Family

    2.5 Admins

    98 Listeners