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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.
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EPISODE 169
Broadcast Date:
June 25, 202124 minutes
Podcast Jun 25, 2021Root Causes 169: Bitcoin and the Anonymity Fallacy
The FBI recently recovered the Colonial pipeline ransom money, which had been paid in Bitcoin. In this episode we talk about how this might have occurred.
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EPISODE 168
Broadcast Date:
June 21, 202119 minutes
Podcast Jun 21, 2021Root Causes 168: The Difference Between e-Signing and Digital Signing
In our technology discussions we frequently run into confusion between electronic document signing and digital document signing. This episode explains.
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EPISODE 167
Broadcast Date:
June 16, 202120 minutes
Podcast Jun 16, 2021Root Causes 167: Colonial Pipeline Ransomware Attack
The Colonial pipeline has captured the news cycles in recent weeks. Our hosts unpack what it known about this attack and how digital identity & PKI fit in.
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EPISODE 166
Broadcast Date:
June 8, 202110 minutes
Podcast Jun 08, 2021Root Causes 166: The Trouble with OU Fields
Of all aspects of public SSL certificates, few are as controversial as the OU field. Our hosts explain why this field is an industry flashpoint.
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EPISODE 165
Broadcast Date:
June 2, 202127 minutes
Podcast Jun 02, 2021Root Causes 165: Blockchain - Proof of Work Versus Proof of Stake
We explain proof of work and proof of stake as blockchain consensus algorithms, the trouble with proof of work, and the future of consensus algorithms.
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EPISODE 164
Broadcast Date:
May 20, 202111 minutes
Podcast May 20, 2021Root Causes 164: Examining MFA Through out-of-Band Phone Calling
We explore out-of-band phone calling as a MFA method, including, what attacks it defends against successfully, and what attacks can circumvent it.
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EPISODE 163
Broadcast Date:
May 13, 202113 minutes
Podcast May 13, 2021Root Causes 163: What Puts the I in PKI?
Our hosts discuss the key qualities of credential form factors, how they are distinct from their infrastructure, and the minimum capabilities of PKI.
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EPISODE 162
Broadcast Date:
April 21, 202114 minutes
Podcast Apr 21, 2021Root Causes 162: What Is Sideloading?
In this episode we explain sideloading, its potential dangers, and the underlying motivators behind the sideloading debate.