#bitflip — Public Fediverse posts

@orva @mttaggart
(I realise this is an aside to the issue described by the researchers)

Could a decryption key be hardwired into an anti-fuse #FPGA ?
Am I right to say that would be resistant to bit flips? Or would three be required so they can vote on the true decryption key?
I can come up with other ways to solve this, and I'm sure if it's the only thing holding back encrypted control of satellites, other more erudite minds could come up with elegant solutions.

Obviously this is a one-time thing unless you're willing to send unprogrammed anti-fuse FPGAs up there to store new keys. I have read in the lay-press that flash FPGAs are also SEU resistant, but this stuff is really outside my wheelhouse.

Not to say it won't take a few decades to fix the problem; I only mean to suggest it can probably be fixed.

#space #SEU #bitFlip #FPGA #encryption #satellites #cryptography #postquantum

@orva @mttaggart
(I realise this is an aside to the issue described by the researchers)

Could a decryption key be hardwired into an anti-fuse #FPGA ?
Am I right to say that would be resistant to bit flips? Or would three be required so they can vote on the true decryption key?
I can come up with other ways to solve this, and I'm sure if it's the only thing holding back encrypted control of satellites, other more erudite minds could come up with elegant solutions.

Obviously this is a one-time thing unless you're willing to send unprogrammed anti-fuse FPGAs up there to store new keys. I have read in the lay-press that flash FPGAs are also SEU resistant, but this stuff is really outside my wheelhouse.

Not to say it won't take a few decades to fix the problem; I only mean to suggest it can probably be fixed.

#space #SEU #bitFlip #FPGA #encryption #satellites #cryptography #postquantum

@orva @mttaggart
(I realise this is an aside to the issue described by the researchers)

Could a decryption key be hardwired into an anti-fuse #FPGA ?
Am I right to say that would be resistant to bit flips? Or would three be required so they can vote on the true decryption key?
I can come up with other ways to solve this, and I'm sure if it's the only thing holding back encrypted control of satellites, other more erudite minds could come up with elegant solutions.

Obviously this is a one-time thing unless you're willing to send unprogrammed anti-fuse FPGAs up there to store new keys. I have read in the lay-press that flash FPGAs are also SEU resistant, but this stuff is really outside my wheelhouse.

Not to say it won't take a few decades to fix the problem; I only mean to suggest it can probably be fixed.

#space #SEU #bitFlip #FPGA #encryption #satellites #cryptography #postquantum

@orva @mttaggart
(I realise this is an aside to the issue described by the researchers)

Could a decryption key be hardwired into an anti-fuse #FPGA ?
Am I right to say that would be resistant to bit flips? Or would three be required so they can vote on the true decryption key?
I can come up with other ways to solve this, and I'm sure if it's the only thing holding back encrypted control of satellites, other more erudite minds could come up with elegant solutions.

Obviously this is a one-time thing unless you're willing to send unprogrammed anti-fuse FPGAs up there to store new keys. I have read in the lay-press that flash FPGAs are also SEU resistant, but this stuff is really outside my wheelhouse.

Not to say it won't take a few decades to fix the problem; I only mean to suggest it can probably be fixed.

#space #SEU #bitFlip #FPGA #encryption #satellites #cryptography #postquantum

@orva @mttaggart
(I realise this is an aside to the issue described by the researchers)

Could a decryption key be hardwired into an anti-fuse #FPGA ?
Am I right to say that would be resistant to bit flips? Or would three be required so they can vote on the true decryption key?
I can come up with other ways to solve this, and I'm sure if it's the only thing holding back encrypted control of satellites, other more erudite minds could come up with elegant solutions.

Obviously this is a one-time thing unless you're willing to send unprogrammed anti-fuse FPGAs up there to store new keys. I have read in the lay-press that flash FPGAs are also SEU resistant, but this stuff is really outside my wheelhouse.

Not to say it won't take a few decades to fix the problem; I only mean to suggest it can probably be fixed.

#space #SEU #bitFlip #FPGA #encryption #satellites #cryptography #postquantum

https://www.europesays.com/uk/456498/ Cat qubits stay stable for over an hour in quantum computing record #Alice&Bob #BitFlip #CatQubit #Physics #QuantumComputing #QuantumTech #RaphaelLescanne #Science #UK #UnitedKingdom

Nvidia chips become the first GPUs to fall to Rowhammer bit-flip attacks
rstechnica.com/security/2025/07/nvidia-chips-become-the-first-gpus-to-fall-to-rowhammer-bit-flip-attacks/
#cybersecurity #Nvidia #GPU #bitflip #AI #cloud

Nvidia chips become the first GPUs to fall to Rowhammer bit-flip attacks
rstechnica.com/security/2025/07/nvidia-chips-become-the-first-gpus-to-fall-to-rowhammer-bit-flip-attacks/
#cybersecurity #Nvidia #GPU #bitflip #AI #cloud

Nvidia chips become the first GPUs to fall to Rowhammer bit-flip attacks
rstechnica.com/security/2025/07/nvidia-chips-become-the-first-gpus-to-fall-to-rowhammer-bit-flip-attacks/
#cybersecurity #Nvidia #GPU #bitflip #AI #cloud

Nvidia chips become the first GPUs to fall to Rowhammer bit-flip attacks
rstechnica.com/security/2025/07/nvidia-chips-become-the-first-gpus-to-fall-to-rowhammer-bit-flip-attacks/
#cybersecurity #Nvidia #GPU #bitflip #AI #cloud

#Computers are wonderful... they still surprise me once in a while.

One of my #tasmota devices just stopped answering commands via #mqtt but was happily reporting status back via MQTT.

After a lot of debugging I found that the MQTT topic changed from /cmnd/... to /cmjd/...

j in ASCII is 0x6E or 0b010 1110
n in ASCII is 0x6A or 0b0110 1010

So basically one bit flipped from 0 to 1.

Bit flip? Table flip!
(╯° °）╯︵ ┻━┻

That is my first self-observed obvious bitflip. Hooray!

So I will now configure the MQTT Sender to use cmjd for this device, obviously...

#bitflip #microcontrollers #iot

#Computers are wonderful... they still surprise me once in a while.

One of my #tasmota devices just stopped answering commands via #mqtt but was happily reporting status back via MQTT.

After a lot of debugging I found that the MQTT topic changed from /cmnd/... to /cmjd/...

j in ASCII is 0x6E or 0b010 1110
n in ASCII is 0x6A or 0b0110 1010

So basically one bit flipped from 0 to 1.

Bit flip? Table flip!
(╯° °）╯︵ ┻━┻

That is my first self-observed obvious bitflip. Hooray!

So I will now configure the MQTT Sender to use cmjd for this device, obviously...

#bitflip #microcontrollers #iot

#Computers are wonderful... they still surprise me once in a while.

One of my #tasmota devices just stopped answering commands via #mqtt but was happily reporting status back via MQTT.

After a lot of debugging I found that the MQTT topic changed from /cmnd/... to /cmjd/...

j in ASCII is 0x6E or 0b010 1110
n in ASCII is 0x6A or 0b0110 1010

So basically one bit flipped from 0 to 1.

Bit flip? Table flip!
(╯° °）╯︵ ┻━┻

That is my first self-observed obvious bitflip. Hooray!

So I will now configure the MQTT Sender to use cmjd for this device, obviously...

#bitflip #microcontrollers #iot

#Computers are wonderful... they still surprise me once in a while.

One of my #tasmota devices just stopped answering commands via #mqtt but was happily reporting status back via MQTT.

After a lot of debugging I found that the MQTT topic changed from /cmnd/... to /cmjd/...

j in ASCII is 0x6E or 0b010 1110
n in ASCII is 0x6A or 0b0110 1010

So basically one bit flipped from 0 to 1.

Bit flip? Table flip!
(╯° °）╯︵ ┻━┻

That is my first self-observed obvious bitflip. Hooray!

So I will now configure the MQTT Sender to use cmjd for this device, obviously...

#bitflip #microcontrollers #iot

#Computers are wonderful... they still surprise me once in a while.

One of my #tasmota devices just stopped answering commands via #mqtt but was happily reporting status back via MQTT.

After a lot of debugging I found that the MQTT topic changed from /cmnd/... to /cmjd/...

j in ASCII is 0x6E or 0b010 1110
n in ASCII is 0x6A or 0b0110 1010

So basically one bit flipped from 0 to 1.

Bit flip? Table flip!
(╯° °）╯︵ ┻━┻

That is my first self-observed obvious bitflip. Hooray!

So I will now configure the MQTT Sender to use cmjd for this device, obviously...

#bitflip #microcontrollers #iot

What will you bitflip today?

by @beet_keeper

I want to let you into a secret: I enjoy corruption. Corrupting digital objects leads to undefined behavior (C++’s definition is fun). And flipping bits in objects can tell us something both about the fragility, and robustness of our digital files and the applications that work with them.

I had a pull-request for bitflip accepted the other day. Bitflip is by Antoine Grondin and is a simple utility for flipping bits in digital files. I wrote in my COPTR entry for it that it reminds me of shotGun by Manfred Thaller. The utility is exceptionally easy to use (and of course update and maintain written in Golang) and has some nice features for flipping individual bits or a uniform percentage of bits across a digital file.

My pull-request was a simple one updating Goreleaser and its GitHub workflow to provide binaries for Windows and FreeBSD. I only needed to use Windows for a short amount of time thankfully, but it’s an environment I believe is prevalent for a lot of digital preservationists in corporate IT environments.

Bitflip is a useful utility to improve your testing of digital preservation systems, or simply for outreach, but let’s have a quick look at it in action.

#Archive30 #Archives #Art #Binary #bitflip #bitrot #Code #Coding #digipres #digital #DigitalArchiving #digitalLiteracy #DigitalPreservation #FileFormats #GenerativeArt #GlitchArt #outreach #Ravensburger #SomethingFun #Vagabond

What will you bitflip today?

by @beet_keeper

I want to let you into a secret: I enjoy corruption. Corrupting digital objects leads to undefined behavior (C++’s definition is fun). And flipping bits in objects can tell us something both about the fragility, and robustness of our digital files and the applications that work with them.

I had a pull-request for bitflip accepted the other day. Bitflip is by Antoine Grondin and is a simple utility for flipping bits in digital files. I wrote in my COPTR entry for it that it reminds me of shotGun by Manfred Thaller. The utility is exceptionally easy to use (and of course update and maintain written in Golang) and has some nice features for flipping individual bits or a uniform percentage of bits across a digital file.

My pull-request was a simple one updating Goreleaser and its GitHub workflow to provide binaries for Windows and FreeBSD. I only needed to use Windows for a short amount of time thankfully, but it’s an environment I believe is prevalent for a lot of digital preservationists in corporate IT environments.

Bitflip is a useful utility to improve your testing of digital preservation systems, or simply for outreach, but let’s have a quick look at it in action.

#Archive30 #Archives #Art #Binary #bitflip #bitrot #Code #Coding #digipres #digital #DigitalArchiving #digitalLiteracy #DigitalPreservation #FileFormats #GenerativeArt #GlitchArt #outreach #Ravensburger #SomethingFun #Vagabond

What will you bitflip today?

by @beet_keeper

I want to let you into a secret: I enjoy corruption. Corrupting digital objects leads to undefined behavior (C++’s definition is fun). And flipping bits in objects can tell us something both about the fragility, and robustness of our digital files and the applications that work with them.

I had a pull-request for bitflip accepted the other day. Bitflip is by Antoine Grondin and is a simple utility for flipping bits in digital files. I wrote in my COPTR entry for it that it reminds me of shotGun by Manfred Thaller. The utility is exceptionally easy to use (and of course update and maintain written in Golang) and has some nice features for flipping individual bits or a uniform percentage of bits across a digital file.

My pull-request was a simple one updating Goreleaser and its GitHub workflow to provide binaries for Windows and FreeBSD. I only needed to use Windows for a short amount of time thankfully, but it’s an environment I believe is prevalent for a lot of digital preservationists in corporate IT environments.

Bitflip is a useful utility to improve your testing of digital preservation systems, or simply for outreach, but let’s have a quick look at it in action.

#Archive30 #Archives #Art #Binary #bitflip #bitrot #Code #Coding #digipres #digital #DigitalArchiving #digitalLiteracy #DigitalPreservation #FileFormats #GenerativeArt #outreach #Ravensburger #SomethingFun #Vagabond

What will you bitflip today?

by @beet_keeper

I want to let you into a secret: I enjoy corruption. Corrupting digital objects leads to undefined behavior (C++’s definition is fun). And flipping bits in objects can tell us something both about the fragility, and robustness of our digital files and the applications that work with them.

I had a pull-request for bitflip accepted the other day. Bitflip is by Antoine Grondin and is a simple utility for flipping bits in digital files. I wrote in my COPTR entry for it that it reminds me of shotGun by Manfred Thaller. The utility is exceptionally easy to use (and of course update and maintain written in Golang) and has some nice features for flipping individual bits or a uniform percentage of bits across a digital file.

My pull-request was a simple one updating Goreleaser and its GitHub workflow to provide binaries for Windows and FreeBSD. I only needed to use Windows for a short amount of time thankfully, but it’s an environment I believe is prevalent for a lot of digital preservationists in corporate IT environments.

Bitflip is a useful utility to improve your testing of digital preservation systems, or simply for outreach, but let’s have a quick look at it in action.

#Archive30 #Archives #Art #Binary #bitflip #bitrot #Code #Coding #digipres #digital #DigitalArchiving #digitalLiteracy #DigitalPreservation #FileFormats #GenerativeArt #outreach #Ravensburger #SomethingFun #Vagabond

What will you bitflip today?

by @beet_keeper

I want to let you into a secret: I enjoy corruption. Corrupting digital objects leads to undefined behavior (C++’s definition is fun). And flipping bits in objects can tell us something both about the fragility, and robustness of our digital files and the applications that work with them.

I had a pull-request for bitflip accepted the other day. Bitflip is by Antoine Grondin and is a simple utility for flipping bits in digital files. I wrote in my COPTR entry for it that it reminds me of shotGun by Manfred Thaller. The utility is exceptionally easy to use (and of course update and maintain written in Golang) and has some nice features for flipping individual bits or a uniform percentage of bits across a digital file.

My pull-request was a simple one updating Goreleaser and its GitHub workflow to provide binaries for Windows and FreeBSD. I only needed to use Windows for a short amount of time thankfully, but it’s an environment I believe is prevalent for a lot of digital preservationists in corporate IT environments.

Bitflip is a useful utility to improve your testing of digital preservation systems, or simply for outreach, but let’s have a quick look at it in action.

#Archive30 #Archives #Art #Binary #bitflip #bitrot #Code #Coding #digipres #digital #DigitalArchiving #digitalLiteracy #DigitalPreservation #FileFormats #GenerativeArt #outreach #Ravensburger #SomethingFun #Vagabond

Anekdotisch, aber interessant:

»Ich habe eine Samsung EVO 860 mal "zufällig" nach einem Jahr wieder an den Rechner angeschlossen:
Der Start von Windows 7 hat geschlagene 8 min gedauert und der Zugriff selber lief auch ziemlich langsam, während ich im Hintergrund viel Schreibaktivität vernahm... Meine Vermutung: die Platte hat sich einmal refresht und musste somit alle Zellen einmal anfassen…
Ein #Bitflip ist also bei einer #SSD wahrscheinlicher als bei einer HDD.«

https://www.mydealz.de/comments/permalink/42172486

Anekdotisch, aber interessant:

»Ich habe eine Samsung EVO 860 mal "zufällig" nach einem Jahr wieder an den Rechner angeschlossen:
Der Start von Windows 7 hat geschlagene 8 min gedauert und der Zugriff selber lief auch ziemlich langsam, während ich im Hintergrund viel Schreibaktivität vernahm... Meine Vermutung: die Platte hat sich einmal refresht und musste somit alle Zellen einmal anfassen…
Ein #Bitflip ist also bei einer #SSD wahrscheinlicher als bei einer HDD.«

https://www.mydealz.de/comments/permalink/42172486

Anekdotisch, aber interessant:

»Ich habe eine Samsung EVO 860 mal "zufällig" nach einem Jahr wieder an den Rechner angeschlossen:
Der Start von Windows 7 hat geschlagene 8 min gedauert und der Zugriff selber lief auch ziemlich langsam, während ich im Hintergrund viel Schreibaktivität vernahm... Meine Vermutung: die Platte hat sich einmal refresht und musste somit alle Zellen einmal anfassen…
Ein #Bitflip ist also bei einer #SSD wahrscheinlicher als bei einer HDD.«

https://www.mydealz.de/comments/permalink/42172486

Anekdotisch, aber interessant:

»Ich habe eine Samsung EVO 860 mal "zufällig" nach einem Jahr wieder an den Rechner angeschlossen:
Der Start von Windows 7 hat geschlagene 8 min gedauert und der Zugriff selber lief auch ziemlich langsam, während ich im Hintergrund viel Schreibaktivität vernahm... Meine Vermutung: die Platte hat sich einmal refresht und musste somit alle Zellen einmal anfassen…
Ein #Bitflip ist also bei einer #SSD wahrscheinlicher als bei einer HDD.«

https://www.mydealz.de/comments/permalink/42172486

Anekdotisch, aber interessant:

»Ich habe eine Samsung EVO 860 mal "zufällig" nach einem Jahr wieder an den Rechner angeschlossen:
Der Start von Windows 7 hat geschlagene 8 min gedauert und der Zugriff selber lief auch ziemlich langsam, während ich im Hintergrund viel Schreibaktivität vernahm... Meine Vermutung: die Platte hat sich einmal refresht und musste somit alle Zellen einmal anfassen…
Ein #Bitflip ist also bei einer #SSD wahrscheinlicher als bei einer HDD.«

https://www.mydealz.de/comments/permalink/42172486

bon ou est ce que je peux trouver de quoi confiner des disques durs afin qu'ils résistent à des impulsions électromagnétiques.
parce que hein, y'en a qui ont regardé Blade Runner, et y'a les autres.

#sauvegarde #underPressure #BitFlip #theGreatBlip #meteo #sunBurst #backup

bon ou est ce que je peux trouver de quoi confiner des disques durs afin qu'ils résistent à des impulsions électromagnétiques.
parce que hein, y'en a qui ont regardé Blade Runner, et y'a les autres.

#sauvegarde #underPressure #BitFlip #theGreatBlip #meteo #sunBurst #backup

bon ou est ce que je peux trouver de quoi confiner des disques durs afin qu'ils résistent à des impulsions électromagnétiques.
parce que hein, y'en a qui ont regardé Blade Runner, et y'a les autres.

#sauvegarde #underPressure #BitFlip #theGreatBlip #meteo #sunBurst #backup