cryptography Archives

Tech Optimizer

August 9, 2025

No firewalls or antivirus software—this new quantum technology using magnets promises to protect your information at the subatomic level

A team from Kyoto University has developed a light source that emits single photons, enhanced in brightness by a small magnetic field, which can be used for secure quantum communications. This technology relies on the principles of quantum mechanics, making it difficult for eavesdroppers to replicate or measure the quantum states without detection. The researchers used a one-atom-thick semiconductor sheet, WSe₂, creating traps for excitons that emit photons when relaxed. Current limitations include the need for cryogenic temperatures for operation, but advancements in materials may allow for room-temperature single-photon emission. The technology has potential applications in secure communications for sensitive transactions and could evolve into compact modules for practical use. Recent studies have demonstrated successful quantum key distribution (QKD) using true single-photon sources, indicating progress in integrating quantum technology into real-world networking.

Winsage

August 6, 2025

Security leadership in the age of constant disruption

The business landscape is evolving rapidly due to technologies like artificial intelligence (AI), quantum computing, and intelligent agents, which are reshaping operations and increasing security risks. Security is now a strategic imperative, requiring executives to anticipate and mitigate risks through investment in evolving technologies and best practices. Key trends defining the next decade include: 1. AI agents will enhance productivity but also introduce new security risks, necessitating parallel security structures. 2. Cyber-physical agents will expand security perimeters, requiring integration of physical and cybersecurity strategies. 3. Quantum computing poses retroactive threats to current cryptographic standards, prompting the need for quantum-safe encryption. 4. AI-enabled workforces will reshape talent dynamics and risk profiles, requiring collaboration between HR and IT for security programs. 5. Hardware-level security models will enhance protection and necessitate system upgrades. Organizations should adopt strategies such as securing supply chains, prioritizing attack prevention, leveraging AI for threat countermeasures, ensuring source integrity, maintaining security hygiene, and moving towards resilience with proven frameworks. Microsoft is enhancing security through initiatives like the Secure Future Initiative, Windows Resiliency Initiative, Microsoft Virus Initiative, and Zero Trust strategy.

AppWizard

July 7, 2025

Jack Dorsey evokes Bitcoin ethos with new decentralised messaging app Bitchat

Jack Dorsey introduced a test version of a decentralized messaging application called Bitchat, designed for private conversations through end-to-end encryption. The app enables ephemeral, encrypted communication without relying on internet infrastructure, making it resilient to network outages and censorship. Bitchat operates using Bluetooth to facilitate communication within a range of approximately 300 meters and does not require users to provide phone numbers or email addresses. Instead, users create their own handles for identification. The app automatically detects nearby users, allowing them to connect through chatrooms. Bitchat is intended for use in scenarios lacking internet access, such as concerts, airplanes, or during disaster response efforts.

AppWizard

June 17, 2025

iState: A Russian Government Messenger?

On June 10, the Russian State Duma approved the establishment of a national messenger to be pre-installed on all newly sold smart devices starting September 1. This app will include a digital ID system and aims to streamline access to government services, identity verification, contract signing, and banking transactions. The initiative is inspired by China's WeChat but raises concerns about surveillance and data storage by the Russian government. The specific application for the national messenger has not yet been finalized, with Max, developed by VKontakte, being a leading candidate. Legal expert Sarkis Darbinyan doubts that Max will attract WhatsApp's user base and predicts it will be limited to domestic use without end-to-end encryption. Despite these issues, State Duma IT Committee head Sergei Boyarsky believes that existing messaging platforms like WhatsApp and Telegram will continue to operate if they comply with Russian laws.

Winsage

May 30, 2025

Microsoft Brings Post-Quantum Security To Windows 11 And Linux

Microsoft is incorporating post-quantum cryptography (PQC) into Windows 11 and Linux platforms to enhance its security framework against potential threats from quantum computing. PQC functionalities are now available to Windows Insiders via the Canary Channel Build 27852 and on Linux through SymCrypt-OpenSSL version 1.9.0, allowing customers to test quantum-resistant encryption. Microsoft is enhancing its core cryptographic library, SymCrypt, with new PQC algorithms designed to withstand future quantum decryption capabilities. The company emphasizes the importance of "crypto agility," enabling systems to adapt to new algorithms as they develop. This initiative is part of Microsoft's ongoing commitment to global quantum-safe initiatives and aims to foster innovation and preparedness within the cybersecurity community.

Winsage

May 27, 2025

Windows 11 is getting top-level protection against the next generation of quantum cyberattacks

Microsoft has announced new protective measures against potential quantum-powered cyber threats by rolling out post-quantum cryptography (PQC) capabilities for Windows Insiders using Canary Channel Build 27852 and higher, and for Linux users through SymCrypt-OpenSSL version 1.9.0. The newly introduced PQC algorithms, standardized by NIST, will evolve in response to emerging threats, emphasizing the need for "Crypto Agility." The updates enhance OpenSSL’s API surface for Linux developers, allowing experimentation with TLS hybrid key exchange. Experts warn that quantum computing could breach even the most robust encryption systems, highlighting the urgency for software companies to adapt their security measures.

Winsage

May 26, 2025

Windows 11 gets quantum-hardened cryptography technology

Microsoft has integrated post-quantum cryptography (PQC) into Windows 11, starting with the Canary build 27852, to protect against quantum computer threats. The upgrade to SymCrypt, Microsoft's cryptographic library, now supports two PQC algorithms: ML-KEM and ML-DSA. This enhancement aims to improve security, performance, and compatibility across platforms. PQC is also being adopted in industry standards such as TLS, SSH, and IPSec. SymCrypt underpins various Microsoft services and operating systems, including Microsoft 365, Azure, and Windows 11. Microsoft is preparing its ecosystem for future quantum attacks, with PQC currently trialed in Windows 11 and expected to reach Linux soon. There are no specific timelines for updates to BitLocker. Recent research demonstrated a D-Wave quantum computer's ability to crack military-grade encryption, highlighting the increasing threat of quantum computing to classical cryptography.