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Tag: speculative execution

  • Hacker News: Hardware-Aware Coding: CPU Architecture Concepts Every Developer Should Know

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    Kurt Seifried
    in

    Source URL: https://blog.codingconfessions.com/p/hardware-aware-coding Source: Hacker News Title: Hardware-Aware Coding: CPU Architecture Concepts Every Developer Should Know Feedly Summary: Comments AI Summary and Description: Yes Summary: The text provides an in-depth exploration of CPU architecture and performance optimization through the concept of “hardware-aware coding.” It emphasizes the importance of aligning software with hardware capabilities, particularly in…

  • Hacker News: Constant-Time Code: The Pessimist Case [pdf]

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    Kurt Seifried
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    Source URL: https://eprint.iacr.org/2025/435.pdf Source: Hacker News Title: Constant-Time Code: The Pessimist Case [pdf] Feedly Summary: Comments AI Summary and Description: Yes Summary: The text discusses the challenges and pessimistic outlook surrounding the implementation of constant-time coding in cryptographic software, especially in the light of modern compiler optimization techniques and the increasing complexity of CPU architectures.…

  • Hacker News: Speed or security? Speculative execution in Apple Silicon

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    Kurt Seifried
    in

    Source URL: https://eclecticlight.co/2025/02/25/speed-or-security-speculative-execution-in-apple-silicon/ Source: Hacker News Title: Speed or security? Speculative execution in Apple Silicon Feedly Summary: Comments AI Summary and Description: Yes Summary: The text delves into advanced CPU processing techniques used in Apple silicon chips, notably focusing on out-of-order execution, load address prediction (LAP), and load value prediction (LVP). It also addresses the…

  • The Register: SLAP, Apple, and FLOP: Safari, Chrome at risk of data theft on iPhone, Mac Silicon

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    Kurt Seifried
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    Source URL: https://www.theregister.com/2025/01/29/flop_and_slap_attacks_apple_silicon/ Source: The Register Title: SLAP, Apple, and FLOP: Safari, Chrome at risk of data theft on iPhone, Mac Silicon Feedly Summary: It’s another cousin of Spectre, here to read your email, browsing history, and more Many recent Apple laptops, desktops, tablets, and phones powered by Cupertino’s homegrown Silicon processors can be exploited…

  • Slashdot: Apple Chips Can Be Hacked To Leak Secrets From Gmail, ICloud, and More

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    Kurt Seifried
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    Source URL: https://it.slashdot.org/story/25/01/28/2140207/apple-chips-can-be-hacked-to-leak-secrets-from-gmail-icloud-and-more?utm_source=rss1.0mainlinkanon&utm_medium=feed Source: Slashdot Title: Apple Chips Can Be Hacked To Leak Secrets From Gmail, ICloud, and More Feedly Summary: AI Summary and Description: Yes Summary: The text discusses newly discovered vulnerabilities in Apple-designed chips that potentially leak sensitive data through side-channel attacks leveraging speculative execution. It highlights significant security issues that pose risks…

  • Hacker News: New Apple CPU side-channel attacks steals data from browsers

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    Kurt Seifried
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    Source URL: https://www.bleepingcomputer.com/news/security/new-apple-cpu-side-channel-attack-steals-data-from-browsers/ Source: Hacker News Title: New Apple CPU side-channel attacks steals data from browsers Feedly Summary: Comments AI Summary and Description: Yes Summary: A recent disclosure by security researchers reveals critical side-channel vulnerabilities in modern Apple processors, specifically regarding the FLOP and SLAP attacks. These flaws exploit speculative execution mechanisms to leak sensitive…

  • The Register: Thanks Linus. Torvalds patch improves Linux performance by 2.6%

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    system automation
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    Source URL: https://www.theregister.com/2024/11/06/torvalds_patch_linux_performance/ Source: The Register Title: Thanks Linus. Torvalds patch improves Linux performance by 2.6% Feedly Summary: 21 lines that show the big man still has what it takes A relatively tiny code change by penguin premier Linus Torvalds is making a measurable improvement to Linux’s multithreaded performance.… AI Summary and Description: Yes Summary:…