Simon Willison’s Weblog

The Beauty Of The Diffie-Hellman Protocol. Some useful explanations here. Diffie-Hellman is used by OpenID to establish a shared secret between the provider and the consumer.

Posted 1st March 2007 at 10:08 pm

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GPT-5: Key characteristics, pricing and model card - 7th August 2025
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ChatGPT agent's user-agent - 4th August 2025

cryptography 22 diffiehellman 1 openid 213 reddit 25

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