Apple's Head of Security Engineering and Architecture Ivan Krstić will be attending the Black Hat 2019 event where he will give a "Behind the Scenes" look at iOS and macOS security.

Black Hat is an annual event that's designed for the global InfoSec community, providing security professionals with a place to meet up and gain training on new techniques.

blackhat2019
According to the webpage for the upcoming event, Krstić will be covering "several key technologies" new to iOS 13 and the Mac, including Pointer Authentication Codes in Apple's latest iPhone chips, the T2 security chip in Macs, and the cryptography behind the Find My feature in iOS 13 and macOS Catalina.

Code integrity enforcement has long been a critical part of the iOS security architecture. Starting with iPhone 7, we began to fortify core pieces of this security mechanism with new features built directly into Apple silicon. We will delve into the history of code and memory integrity technologies in the iOS kernel and userland, culminating in Pointer Authentication Codes (PAC) in the Apple A12 Bionic and S4 chips. PAC prohibits modification of function pointers, return addresses and certain data, preventing traditional exploitation of memory corruption bugs. We will take a close look at how PAC is implemented, including improvements in iOS 13. We will also discuss previously-undisclosed VM permission and page protection technologies that are part of our overall iOS code integrity architecture.

The T2 Security Chip brought powerful secure boot capabilities to the Mac. Comprehensively securing the boot process required protections against sophisticated direct memory access (DMA) attacks at every point, even in the presence of arbitrary Option ROM firmware. We will walk through the boot sequence of a Mac with the T2 Security Chip and explain key attacks and defenses at each step, including two industry-first firmware security technologies that have not been publicly discussed before.

The Find My feature in iOS 13 and macOS Catalina enables users to receive help from other nearby Apple devices in finding their lost Macs, while rigorously protecting the privacy of all participants. We will discuss our efficient elliptic curve key diversification system that derives short non-linkable public keys from a user's keypair, and allows users to find their offline devices without divulging sensitive information to Apple.

The 2019 Black Hat event will take place from August 3 to August 8 at the Mandalay Bay resort in Las Vegas, Nevada. Krstić has hosted similar talks in the past, including a look at new features in iOS 10 back in 2016.

Top Rated Comments

69Mustang Avatar
75 months ago
Apple's Head of Security Engineering and Architecture Ivan Krstic announces the Mac OS bounty program at the Black Hat 2019... that would be a pretty kick ass headline.
Score: 4 Votes (Like | Disagree)
69Mustang Avatar
75 months ago
Does he attend every year? If not, he might in fact introduce a bounty program for the Mac after his “presentation”.
I have no idea. I have never heard of this guy. Apple should have a bounty program for Macs. There's really no reason for it not to exist.
Score: 2 Votes (Like | Disagree)
twinlight Avatar
75 months ago
Will watch 100%. Will understand 25% at best.
Score: 2 Votes (Like | Disagree)
allan.nyholm Avatar
75 months ago
Ever heard of Ivan Krsti? No, I haven't either.. What's his name again? Ivan Krstić. A tip, copy his name off of Wikipedia, insert the last name into TextEdit - Convert to Plain text - copy paste into MacRumors and make everyone believe you have the upperhand.
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 19 Mock WWDC25 Feature

iOS 19 Expected to Run on These iPhones

Monday March 31, 2025 5:28 pm PDT by
iOS 19 will not be available on the iPhone XR, iPhone XS, or the iPhone XS Max, according a private account on social media site X that has accurately provided information on device compatibility in the past. The iPhone XR, iPhone XS, and iPhone XS Max all have an A12 Bionic chip, so it looks like iOS 19 will discontinue support for that chip. All other iPhones that run iOS 18 are expected...
maxresdefault

Apple Releases iOS 18.4 With Priority Notifications, Ambient Music, New Emoji and More

Monday March 31, 2025 10:03 am PDT by
Apple today released iOS 18.4 and iPadOS 18.4, the fourth major updates to the iOS 18 and iPadOS 18 operating system updates that came out last year. iOS 18.4 and iPadOS 18.4 come two months after Apple released iOS 18.3 and iPadOS 18.3. Subscribe to the MacRumors YouTube channel for more videos. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to...
watchOS 11 Thumb 2 1

Apple Releases watchOS 11.4 With Sleep Alarm Update

Tuesday April 1, 2025 10:34 am PDT by
Apple today released watchOS 11.4, the fourth major update to the operating system that runs on the Apple Watch. watchOS 11.4 is compatible with the Apple Watch Series 6 and later, all Apple Watch Ultra models, and the Apple Watch SE 2. watchOS 11.4 can be downloaded on a connected iPhone by opening up the Apple Watch app and going to General > Software Update. To install the new software,...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2 and AirPods 4

Monday March 31, 2025 11:27 am PDT by
Apple today released new firmware updates for all AirPods 4 and AirPods Pro 2 models. The new firmware is version 7E93, up from the 7B21 firmware that was installed on the AirPods Pro 2 and the 7B20 firmware available on the AirPods 4 and AirPods 4 with ANC. It is not immediately clear what new features or changes are included in the new firmware, but we'll update this article should we find ...
iPhone 17 Pro 34ths Perspective

iPhone 17 Pro Launching Later This Year With These 10 New Features

Sunday March 23, 2025 10:00 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of March 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
macOS Sequoia Feature

Apple Releases macOS Sequoia 15.4 With Mail Categorization and More

Monday March 31, 2025 10:04 am PDT by
Apple today released macOS Sequoia 15.4, the fourth major update to the macOS Sequoia operating system that launched in September. macOS Sequoia 15.4 comes two months after the launch of macOS Sequoia 15.3. Mac users can download the ‌‌macOS Sequoia‌‌ update through the Software Update section of System Settings. It is available for free on all Macs able to run macOS 15. With...