Understanding Have I Been Pwned's Use of SHA-1 and k-Anonymity

added by DotNetKicks
6/30/2022 2:27:51 PM

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Four and a half years ago now, I rolled out version 2 of HIBP's Pwned Passwords that implemented a really cool k-anonymity model courtesy of the brains at Cloudflare. Later in 2018, I did the same thing with the email address search feature used by Mozilla, 1Password and a handful


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