Post Ay4OEbRDLcPkkthDYu by matt@toot.cafe
 (DIR) More posts by matt@toot.cafe
 (DIR) Post #Ay43IdbL9GGtaNVzkm by jgoerzen@floss.social
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       My saga to find an #ARM #SBC that has #AES acceleration hits some roadbumps, because it seems all the newer ARM boards require a custom vendor OS with, usually, an ancient kernel.  Sigh.Blog post: "ARM is great, ARM is terrible (and so is RISC-V)" https://changelog.complete.org/archives/10858-arm-is-great-arm-is-terrible-and-so-is-risc-v
       
 (DIR) Post #Ay4E1sULdyjgKYSIb2 by jgoerzen@floss.social
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       @faust Not really; I have been running Debian since 1996, and between unattended-upgrades and it's support for every platform imaginable, I don't see myself switching any time soon.  And especially, it's very very strong support of Free Software ideals.
       
 (DIR) Post #Ay4HjBgeRL4OBiYN5U by jgoerzen@floss.social
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       One thing I can't seem to understand is why the low-power side of things doesn't seem to have progressed beyond the Raspberry Pi 3 speeds. Does nobody care about that market segment any more, or is there some reason that low-power performance has stagnated?
       
 (DIR) Post #Ay4IBxUcIBSsZ0dx0i by matt@toot.cafe
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       @jgoerzen You might be interested in Collabora's Debian images for RK3588 boards including the Rock 5B: https://gitlab.collabora.com/hardware-enablement/rockchip-3588/debian-image-recipes Collabora has been doing a lot of work on getting RK3588 support into the mainline kernel and u-boot.
       
 (DIR) Post #Ay4O22kmTgCJhzrLPM by jgoerzen@floss.social
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       @matt Thanks!  I hadn't seen that before.  Glad to know of it.
       
 (DIR) Post #Ay4OEbRDLcPkkthDYu by matt@toot.cafe
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       @jgoerzen I have a Rock 5B board here. Is there a quick way I can double check that it has accelerated AES?
       
 (DIR) Post #Ay4OEc6KsjJ8oQw3eq by jgoerzen@floss.social
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       @matt If you've got Linux running on it, cat /proc/cpuinfo will probably have something to indicate that.  It looks like it does; I went to https://radxa.com/products/rock5/5b/#techspec which led me to https://www.armdesigner.com/download/Rockchip_RK3588_Datasheet_V1.7-20231117.pdf which says it has "ARMv8 Cryptography Extensions" which is the magic thing you want to have.
       
 (DIR) Post #Ay69VLwD7U3qbqdwDA by jgoerzen@floss.social
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       In an update to yesterday's post, I found I could get reasonably good full-disk encryption on a #RaspberryPi 4 with the xchacha12/Adiantum configuration.BUT, there is no way to enter the passphrase at boot when trying to use a USB-to-serial device.If you like, follow me down this path of encryption and weird Pi UARTs (one of which changes its baud rate when the VPU clock speed changes).https://changelog.complete.org/archives/10868-performant-full-disk-encryption-on-a-rasberry-pi-foiled-by-uarts
       
 (DIR) Post #Ay6CGDI7Hkl7JLMVX6 by ttyS1@bsd.network
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       @jgoerzen This post is spot on.
       
 (DIR) Post #Ay6CGEQJ4mu8p2CYwC by jgoerzen@floss.social
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       @ttyS1 Thanks!  I wish it wasn't, though.
       
 (DIR) Post #Ay6UCTyL7dMJ3xTxOS by bls@mas.to
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       @jgoerzen Not a serial device (BTW...Vcool...VT510!) but you can use SSH to unlock the encrypted rootfs. https://github.com/gitbls/sdm/blob/master/Docs/Disk-Encryption.md#raspberrypi #LUKS #debian
       
 (DIR) Post #Ay6Z2gyaQ04iGjkTPU by jgoerzen@floss.social
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       @bls Thanks for that tip!  You sent me looking, and I found the dropbear-initramfs package already built into Debian that can do this.  Not exactly what I'm after this time, but definitely knowledge to file away.I may have a few too many terminals.  I have 1 or more of vt220, vt420, vt510, IBM 3151, Wyse WY-55, and maybe some others.  My wife isn't entirely pleased about the Closet of Terminals in the basement 🙂   But, I can pick green or amber as suits any given moment!
       
 (DIR) Post #Ay6ZR9ZXkaPxuMhOUK by bls@mas.to
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       @jgoerzen I cut my terminal teeth on the VT52, VT100, and VT220. I admire your collection, although I'm currently in the "get rid of old crap" stage of life 😆
       
 (DIR) Post #Ay6vY1smw7l94tNtbs by jgoerzen@floss.social
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       @bls That's the stage of life I SHOULD be in, but every time I go to a vintage computer festival, somehow I magically have more cargo when I get back home than when I left.  Mysterious physics at work...