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Tag: Ed25519

  • Simon Willison’s Weblog: ChatGPT agent’s user-agent

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    Kurt Seifried
    in

    Source URL: https://simonwillison.net/2025/Aug/4/chatgpt-agents-user-agent/#atom-everything Source: Simon Willison’s Weblog Title: ChatGPT agent’s user-agent Feedly Summary: I was exploring how ChatGPT agent works today. I learned some interesting things about how it exposes its identity through HTTP headers, then made a huge blunder in thinking it was leaking its URLs to Bingbot and Yandex… but it turned out…

  • Simon Willison’s Weblog: ChatGPT agent triggers crawls from Bingbot and Yandex

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    Kurt Seifried
    in

    Source URL: https://simonwillison.net/2025/Aug/4/chatgpt-agents-agent/#atom-everything Source: Simon Willison’s Weblog Title: ChatGPT agent triggers crawls from Bingbot and Yandex Feedly Summary: ChatGPT agent is the recently released (and confusingly named) ChatGPT feature that provides browser automation combined with terminal access as a feature of ChatGPT – replacing their previous Operator research preview which is scheduled for deprecation on…

  • Hacker News: TKey – Security for the New World

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    Kurt Seifried
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    Source URL: https://tillitis.se/products/tkey/ Source: Hacker News Title: TKey – Security for the New World Feedly Summary: Comments AI Summary and Description: Yes Summary: The text describes TKey, a flexible USB security token that emphasizes open source principles. TKey generates unique key material tied to specific applications, ensuring security by preventing unauthorized access even if the…

  • Hacker News: Don’t use Session – Round 2

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    Kurt Seifried
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    Source URL: https://soatok.blog/2025/01/20/session-round-2/ Source: Hacker News Title: Don’t use Session – Round 2 Feedly Summary: Comments AI Summary and Description: Yes **Short Summary with Insight**: The text is a critical analysis of the security and cryptography protocol design of the Session messaging application compared to its peers. It discusses weaknesses in Session’s cryptographic practices, such…

  • Hacker News: Better-performing "25519" elliptic-curve cryptography

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    system automation
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    Source URL: https://www.amazon.science/blog/better-performing-25519-elliptic-curve-cryptography Source: Hacker News Title: Better-performing "25519" elliptic-curve cryptography Feedly Summary: Comments AI Summary and Description: Yes Summary: The text provides an in-depth overview of Amazon Web Services’ (AWS) cryptographic algorithm implementations using elliptic-curve cryptography, specifically focusing on x25519 and Ed25519. It discusses performance improvements, correctness proofs through automated reasoning, and optimizations for…