Root Causes 09: 63-bit Serial Numbers

Hosted by

Tim Callan

Chief Compliance Officer

Jason Soroko

Fellow

Original broadcast date

March 25, 2019

A recently discovered flaw in common practices reveals that potentially millions of active SSL certificates fall short of cryptographic requirements. Learn how it is that 64-bit certificate serial numbers might offer only 63 bits of entropy and what CAs have to do about it.

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