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Cake day: 2024年4月13日

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  • Her left handed dad - who grew up in a country which had no left handed things - wasn’t able to use the scissors.

    That’s interesting to me. I’m a lefty who’s used to both types of scissors. That means I know how I need to pull sideways with the knuckle of my thumb in the right handed ones so they still cut well. But with the left handed ones I feel like I’m doing way less, I just pull and push up and down without needing the additional deliberate sideways pressure.






  • Yeah agreed especially further down when it’s just randomly rehashing old history. It’s also mixing up decryption and verification even in the beginning of the article. First they write:

    BootROM (Level 0): The CPU runs code burned into it at the factory. This code is immutable (cannot be changed). It uses the ROM Keys to verify the signature of the next loader.

    Then just two paragraphs below:

    The ROM Keys change everything. With these keys, hackers can decrypt the Level 1 Bootloader.

    So which is it? Usually bootloaders in a chain hash the next stage. That hash is compared with the signed hash the stage presents, and the signature on the signed hash is cryptographically verified against the locally stored trusted keys. No encryption or decryption takes place. Maybe this is different for the PS5 but then that would be noteworthy, not something you just assume readers to know.