Understanding Have I Been Pwned's Use of SHA-1 and k-Anonymity
Troy Hunt
JUNE 30, 2022
Or alternatively: Our [insert title of person who fills out paperwork but has no technical understanding here] says that k-anonymity involves sending you PII. The fact that SHA-1 is fast to calculate and has proven hash collision attacks against its integrity doesn't diminish the purpose it serves in protecting badly parsed data.
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