ludman1May 10, 2025

A Formal Analysis of Apple’s #iMessage PQ3 Protocol:

"Moreover, #PQ3's integration of hybrid-cryptography into the double ratchet provides stronger guarantees than #Signal, where a post-quantum Key Encapsulation Mechanism (KEM) is just integrated into the protocol's setup phase, but not into its ratcheting".

https://www.usenix.org/system/files/conference/usenixsecurity25/sec25cycle1-prepub-595-linker.pdf

#iOS #Messaging

Show threadTanukiJul 15, 2024

The errors themselves redacted the key values, but the important clues were "Out of sync ratchet upon ratcheting." and "Mismatch in ratchet state, attempting to decrypt with message key with indicator: <private> instead of <private>." Apple wrote a blog post, but it only hints at my issue https://security.apple.com/blog/imessage-pq3/

I seem to have (hopefully) resolved the problem by signing out of Messages and back in on one device. The errors stopped on the other device.

#PQ3 #iOS #cryptography #macOS

Blog - iMessage with PQ3: The new state of the art in quantum-secure messaging at scale - Apple Security Research

We are introducing PQ3, a groundbreaking cryptographic protocol for iMessage that advances the state of the art of end-to-end secure messaging. With compromise-resilient encryption and extensive defenses against even highly sophisticated quantum attacks, PQ3 provides protocol protections that surpass those in all other widely deployed messaging apps.

Blog - iMessage with PQ3: The new state of the art in quantum-secure messaging at scale - Apple Security Research
ADMIN magazineFeb 29, 2024
Security Upgrade: #Apple's PQ3 cryptographic protocol brings post-quantum security to iMessage https://www.admin-magazine.com/News/Apple-s-PQ3-Brings-Post-Quantum-Security-to-iMessage #Quantum #iMessage #security #PQ3 #encryption #cryptography
Apple’s PQ3 Brings Post-Quantum Security to iMe... » ADMIN Magazine

The Apple security team has announced PQ3, a cryptographic security upgrade in iMessage.According to the announcement, PQ3 is “a groundbreaking pos...

ADMIN Magazine
Hendrik EbelFeb 26, 2024
"Apple rolls out iMessage upgrade to withstand decryption by quantum computers" https://www.reuters.com/technology/cybersecurity/apple-rolls-out-imessage-upgrade-withstand-decryption-by-quantum-computers-2024-02-21/ #apple #security #iMessage #pq3
Show thread_keith_smith_Feb 26, 2024
@securityaffairs I can't help but ask: Is Apple doing this now because they think ‘Harvest Now, Decrypt Later’ is already being done to them? #pq3
HabrFeb 25, 2024

PQ3, Apple’s New iMessage Security Protocol: что нового?

Хоть убейте, не нашёл отличий. Впервые увидел на Коде Дурова , там, как обычно, не дали подробностей. Ключи используются от устройств, ну и что? Сейчас не также? Также. Приватный ключ здесь, публичный остальным, приватный никому не показываем. Всё, пошло поехало. Но это же Apple! Не может всё так быть просто. Окей, ищу дальше, натыкаюсь на securitylab, там уже побольше подробностей.

https://habr.com/ru/articles/796065/

#PQ3 #Apple #imessage #rsa #квантовые_компьютеры #шифрование

PQ3, Apple’s New iMessage Security Protocol: что нового?

Хоть убейте, не нашёл отличий. Впервые увидел на Коде Дурова , там, как обычно, не дали подробностей. Ключи используются от устройств, ну и что? Сейчас не также? Также. Приватный ключ здесь,...

Хабр
WinFuture.deFeb 25, 2024
#Apple legt nun nach, was die Verschlüsselung von Nachrichten angeht, die mit iPhone, iPad oder Mac mit der Nachrichten-App (iMessage) versendet werden. #PQ3. https://winfuture.de/news,141379.html?utm_source=Mastodon&utm_medium=ManualStatus&utm_campaign=SocialMedia
Apple iMessage bekommt "quantenresistente" PQ3-Verschlüsselung

Apple legt nun nach, was die Verschlüsselung von Nachrichten angeht, die mit iPhone, iPad oder Mac mit der Nachrichten-App (iMessage) versendet werden. Apple erweitert seinen Instant-Messaging-Dienst nun mit dem Post-Quantum-Kryptographieprotokoll namens PQ3.

WinFuture.de
securityaffairsFeb 24, 2024
#Apple created post-quantum cryptographic protocol #PQ3 for #iMessage
https://securityaffairs.com/159543/security/post-quantum-cryptographic-protocol-pq3.html
#securityaffairs #hacking
Apple created post-quantum cryptographic protocol PQ3

Apple announced the implementation of a post-quantum cryptographic protocol called PQ3 will be integrated into iMessage.

Security Affairs
Charlie TechFeb 24, 2024
Apple implementará encriptación de nivel cuántico en #iMessage con su protocolo #PQ3, lo que hará que sea plataforma de mensajería más segura del mundo, superando incluso a #Signal, que usa una encriptación cuántica de nivel 2. Este nuevo cifrado se implementará con #iOS 17.4.
Michael Burch Feb 23, 2024

iMessage mit mehr Sicherheit gegen Quantencomputer-Bedrohungen

Computer werden stets leistungsstärker. Neuste Quantencomputer ermöglichen es theoretisch potenziellen Angreifern leichter ein verschlüsseltes System zu knacken. Da Quantencomputer klassische mathematische Aufgaben auf grundlegend andere Weise lösen, sind diese in der Lage, Berechnungen noch schneller au…

Artikel lesen: https://www.iphone-blog.ch/2024/02/23/imessage-mit-mehr-sicherheit-gegen-quantencomputer-bedrohungen/

#iMessage #IOS17.4 #PQ3 #Quantencomputer #Sicherheit

iMessage mit mehr Sicherheit gegen Quantencomputer-Bedrohungen

Computer werden stets leistungsstärker. Neuste Quantencomputer ermöglichen es theoretisch potenziellen Angreifern leichter ein verschlüsseltes System zu knacken.

iPhoneBlog