Simon Willison’s Weblog

Don't Hash Secrets. A well written explanation from 2008 of why you must use hmac instead of raw SHA-1 when hashing against a secret.

Posted 24th January 2010 at 1:30 pm

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The last six months in LLMs, illustrated by pelicans on bicycles - 6th June 2025
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hmac 2 signing 6 sha1 4 cryptography 22 security 519

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