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EPISODE 182
Broadcast Date:
October 18, 202125 minutes
Podcast Oct 18, 2021Root Causes 182: Let's Encrypt Root Expiration
Let's Encrypt's recent root expiration caused widespread service outages. We discuss this expiration and the recipe for avoiding problems in the future.
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EPISODE 181
Broadcast Date:
August 30, 202113 minutes
Podcast Aug 30, 2021Root Causes 181: Limitation of DCV Through Web Site Changes
Domain Control Validation (DCV) for SSL certificates using the "change to web site" method will be changing late this year. We explain these changes.
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EPISODE 180
Broadcast Date:
August 26, 202112 minutes
Podcast Aug 26, 2021Root Causes 180: PetitPotam MSCA Attack
WE describe the PetitPotam MSCA attack and related terms like Mimikatz, pass-the-hash, and NTLM Relay, including a mitigation roadmap and free resources.
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EPISODE 179
Broadcast Date:
August 24, 202114 minutes
Podcast Aug 24, 2021Root Causes 179: Standards for Certificates Apart from SSL
SSL is not the only regulated type of digital certificate. We discuss the rules for S/MIME, eIDAS, code signing, document signing, and SSH certificates.
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EPISODE 178
Broadcast Date:
August 20, 202114 minutes
Podcast Aug 20, 2021Root Causes 178: Stealing Cryptocurrency
We describe the various ways in which cryptocurrency can be stolen, including private key compromise, broker security failure, and login credential theft.
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EPISODE 176
Broadcast Date:
August 5, 202127 minutes
Podcast Aug 05, 2021Root Causes 176: Introducing State-Locality Exclusivity
Sectigo is implementing an important change to its public-facing SSL certificate business called State-Locality Exclusivity. We explain in this episode.
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EPISODE 175
Broadcast Date:
August 2, 202121 minutes
Podcast Aug 02, 2021Root Causes 175: What Is a Linter?
Linters are a venerable coding tool has recently taken on new significant in the world of public certificates. Our hosts explain.
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EPISODE 174
Broadcast Date:
July 27, 202116 minutes
Podcast Jul 27, 2021Root Causes 174: Windows 11 and TPMs
Microsoft has announced that its upcoming Windows 11 release will require TPM 2.0 support at a minimum. We discuss the implications of this announcement.
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EPISODE 173
Broadcast Date:
July 22, 202118 minutes
Podcast Jul 22, 2021Root Causes 173: Whitelisting and Blocklisting
Whitelisting and blocklisting are tried and true elements of the computer industry. We define them and discuss their pros and cons.
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EPISODE 172
Broadcast Date:
July 13, 202116 minutes
Podcast Jul 13, 2021Root Causes 172: What Is an NFT?
Non-fungible tokens uniquely identify digital assets using blockchain. We explain how NFTs work, and public assertion of ownership for digital files.
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EPISODE 171
Broadcast Date:
July 8, 202122 minutes
Podcast Jul 08, 2021Root Causes 171: The Off-by-One-Second Problem
We explore an error in public certificates that we call the off-by-one-second problem. We explain this problem and its broader implications.
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EPISODE 170
Broadcast Date:
July 1, 202119 minutes
Podcast Jul 01, 2021Root Causes 170: Why Is Canada So Good at Cryptography?
Happy Canada Day! In celebration, we discuss why Canada is disproportionately good at cryptography.