Giovanni Lagorio
@zxgio.bsky.social
Security enthusiast, CTF player, co-founder of ZenHack Team; he/him
Reposted by Giovanni Lagorio
Interesting story how DES 56 became a 56-bit key algorithm (while having a 64-bit block size):
"NSA tried to convince IBM to reduce the length of the key from 64 to 48 bits. Ultimately, they compromised on a 56-bit key."
"NSA tried to convince IBM to reduce the length of the key from 64 to 48 bits. Ultimately, they compromised on a 56-bit key."
October 6, 2025 at 9:33 PM
Interesting story how DES 56 became a 56-bit key algorithm (while having a 64-bit block size):
"NSA tried to convince IBM to reduce the length of the key from 64 to 48 bits. Ultimately, they compromised on a 56-bit key."
"NSA tried to convince IBM to reduce the length of the key from 64 to 48 bits. Ultimately, they compromised on a 56-bit key."
Reposted by Giovanni Lagorio
Is your GPU trustworthy? 🤔
Today, Julian presents our work on implanting machine learning backdoors in hardware at @acsacconf.bsky.social. Our backdoors reside within a hardware ML accelerator, manipulating models on-the-fly and invisible from outside.
mlsec.org/docs/2024-ac...
1/3
Today, Julian presents our work on implanting machine learning backdoors in hardware at @acsacconf.bsky.social. Our backdoors reside within a hardware ML accelerator, manipulating models on-the-fly and invisible from outside.
mlsec.org/docs/2024-ac...
1/3
December 13, 2024 at 11:16 AM
Is your GPU trustworthy? 🤔
Today, Julian presents our work on implanting machine learning backdoors in hardware at @acsacconf.bsky.social. Our backdoors reside within a hardware ML accelerator, manipulating models on-the-fly and invisible from outside.
mlsec.org/docs/2024-ac...
1/3
Today, Julian presents our work on implanting machine learning backdoors in hardware at @acsacconf.bsky.social. Our backdoors reside within a hardware ML accelerator, manipulating models on-the-fly and invisible from outside.
mlsec.org/docs/2024-ac...
1/3
Reposted by Giovanni Lagorio
DEF CON 33 CTF Qualifcations have a date!
Packet sorcerers, make room in your calendar for the official qualifier event for #defcon 33 CTF! Our esteemed colleagues at the Nautilus Institute are hard at work building the challenges - can you afford to do less?
More info at nautilus.institute.
December 14, 2024 at 12:58 AM
DEF CON 33 CTF Qualifcations have a date!
Packet sorcerers, make room in your calendar for the official qualifier event for #defcon 33 CTF! Our esteemed colleagues at the Nautilus Institute are hard at work building the challenges - can you afford to do less?
More info at nautilus.institute.
Reposted by Giovanni Lagorio
My deep learning course at the University of Geneva is available on-line. 1000+ slides, ~20h of screen-casts. Full of examples in PyTorch.
fleuret.org/dlc/
And my "Little Book of Deep Learning" is available as a phone-formatted pdf (nearing 700k downloads!)
fleuret.org/lbdl/
fleuret.org/dlc/
And my "Little Book of Deep Learning" is available as a phone-formatted pdf (nearing 700k downloads!)
fleuret.org/lbdl/
November 26, 2024 at 6:15 AM
My deep learning course at the University of Geneva is available on-line. 1000+ slides, ~20h of screen-casts. Full of examples in PyTorch.
fleuret.org/dlc/
And my "Little Book of Deep Learning" is available as a phone-formatted pdf (nearing 700k downloads!)
fleuret.org/lbdl/
fleuret.org/dlc/
And my "Little Book of Deep Learning" is available as a phone-formatted pdf (nearing 700k downloads!)
fleuret.org/lbdl/