Tap to unmute

Spectre Attacks: Exploiting Speculative Execution

  Рет қаралды 4,345

RSA Conference

RSA Conference

Күн бұрын

Пікірлер: 2
@Blankschyn
@Blankschyn 5 жыл бұрын
two questions: why is the array2 index multiplied with 512? and why is the repeated wrong speculative execution not changing the branch prediction/why can i do this over and over again without "mistrain" the predictor again?
@JohnWittle
@JohnWittle 5 жыл бұрын
I don't know about your first question But with your second question, isn't it the case that we only needed the speculative execution to put the secret value into the cache? Once it's there, we're just passing in all the possible values of X and seeing how long it takes for the if to return 'false'; if it took less time, it means it was able to check the value of x against a value in the cache, which must be the secret value. We don't actually need the 'true' branch to be executed at all, speculatively or not, once we've got the secret value into the cache
Meltdown: Basics, Details, Consequences
46:54
Black Hat
Рет қаралды 9 М.
Spectre Attacks Exploiting Speculative Execution
21:11
IEEE Symposium on Security and Privacy
Рет қаралды 9 М.
УНО Реверс в Амонг Ас : игра на выбывание
0:19
Фани Хани
Рет қаралды 1,3 МЛН
GIANT Gummy Worm #shorts
0:42
Mr DegrEE
Рет қаралды 152 МЛН
27. Nuclear Materials - Radiation Damage and Effects in Matter
55:54
MIT OpenCourseWare
Рет қаралды 204 М.
Meltdown And Spectre
48:03
Matt Godbolt
Рет қаралды 31 М.
Getting started with wolfSSL in 2025
44:12
wolfSSL
Рет қаралды 219
At the Edge of Prediction: A Look Back to the Future of Cybersecurity
20:10
Are you using a Hacked AI system?
27:06
David Bombal
Рет қаралды 278 М.
Jeremias Knoblauch: Post-Bayesian machine learning
51:49
ISBA - International Society of Bayesian Analysis
Рет қаралды 672
TCP Fundamentals Part 1 // TCP/IP Explained with Wireshark
1:17:24
Chris Greer
Рет қаралды 456 М.
Spectre attack explained like you're five
3:42
Jad Joubran
Рет қаралды 43 М.
Tera Ladner  | Atlanta, GA CyberSecurity Event | December 11th, 2024
1:03:31
УНО Реверс в Амонг Ас : игра на выбывание
0:19
Фани Хани
Рет қаралды 1,3 МЛН