digital signatures

Winsage
September 28, 2026
Microsoft PowerToys originated during the development of Windows 95 as small programs created by engineers to test concepts and ease workloads. The first collection of PowerToys included tools like FindX, Send To X, and Tweak UI. System Configuration (MSConfig) helps isolate configuration and startup issues by allowing selective loading of services and startup components, remaining useful despite modern management shifting to Task Manager. Disk Cleanup was launched with Windows 98 to help users reclaim disk space, featuring commands that allow saving cleanup profiles, a functionality that persists in Windows 11. Task Scheduler, introduced in 1995 as System Agent in the Microsoft Plus! pack for Windows 95, automates tasks based on specific triggers. System File Checker (SFC), dating back to Windows 98, scans and repairs protected Windows resources, evolving from a graphical utility to a command-line tool. Device Manager provides an expandable tree of hardware components and reflects advancements in Microsoft's Plug and Play system from Windows 95, continuing to assist users in hardware inspection and troubleshooting. The DirectX Diagnostic Tool (DxDiag) was created for gamers in the late '90s to examine hardware and software configurations related to DirectX and remains available in Windows 11.
Winsage
August 7, 2026
Windows 11 has faced criticism from users, despite improvements like the option to uninstall AI features. Some users are attempting to run it on unsupported hardware, leading to frustrations, especially after updates. The percentage of Windows 10 users decreased from about 42% in October 2025 to 26% by May 2026, following the end of support for Windows 10. Safety for Windows 10 users depends on participation in the extended support program and staying updated, but risks include the expiration of security certificates crucial for Secure Boot, set to expire in mid-2026. Microsoft is issuing updates for eligible machines, but support is not indefinite, and older systems may face difficulties. Third-party applications may also withdraw compatibility with Windows 10. Alternatives to upgrading include Apple's Mac OS and Linux, which has seen a rise in market share, surpassing 4.7% globally by 2025. Linux distributions like Zorin OS and Linux Mint mimic the Windows experience, and ChromeOS can be installed on various computers.
AppWizard
July 1, 2026
Google is introducing a new utility app named “Signatures” for Android users, starting to appear on Pixel devices and select Android smartphones with the June 2026 Play system update. The app is operational on devices like the Google Pixel 10 and Samsung Galaxy Z Fold 7, but not on the Oppo Find X9 Ultra, despite the same update. The app serves as a repository for users' digital signatures, which can be drawn, typed, or scanned. Its integration with other applications remains uncertain, and it can only be accessed by manually launching its components. The app is designated as (com.google.android.signature), version “17,” and is compatible with Android 12 and newer versions. It is not available through the Play Store and is distributed exclusively via Play System Updates.
AppWizard
June 21, 2026
Obtainium is a free and open-source sideload manager designed to simplify the updating process for sideloaded Android applications. Users can add their sideloaded apps to Obtainium’s tracking list after a one-time setup, allowing the app to monitor these sources for updates in the background. Obtainium supports various sources, including GitHub, GitLab, F-Droid, APKMirror, and Uptodown. The app checks for updates every six hours and can either download and install updates automatically or notify the user. Setting up Obtainium involves downloading the APK, adding app source URLs, and ensuring the correct source is used for each app. However, it has limitations, such as relying on HTML scraping for websites without an API and potential API rate limits for GitHub apps. Additionally, Obtainium may have read-only access to certain sites, requiring users to manually update apps in some cases.
Winsage
June 4, 2026
Active Directory Certificate Services (ADCS) now supports the generation of post-quantum certificates, enhancing quantum-safe cryptography within Windows' secure connection protocols. Microsoft has integrated PQ TLS hybrid key exchange into the Windows Transport Layer Security (TLS) stack, providing protection against "Harvest Now, Decrypt Later" attacks. The PQ TLS hybrid key exchange combines traditional cryptographic methods with the NIST ML-KEM algorithm, offering three hybrid combinations: X25519MLKEM768, SecP256r1MLKEM768, and SecP384r1_MLKEM1024. This feature is available in preview via the Windows Insider Program and will be rolled out to Windows 11 and Windows Server. Additionally, Windows cryptography APIs now support composite ML-KEM and ML-DSA algorithms, which are NIST-approved standards for key exchange and digital signatures, enhancing security by requiring multiple components to be compromised. Microsoft emphasizes the importance of establishing new Certification Authorities (CAs) for implementing post-quantum certificate issuance, as existing CAs cannot be upgraded. The introduction of ML-DSA support within ADCS allows organizations to counter HNDL risks associated with long-lived data. Organizations are encouraged to inventory their use of public-key cryptography, prioritize systems protecting sensitive data, and test hybrid and composite approaches in non-production environments to facilitate a smooth transition to quantum-safe cryptography.
Winsage
May 24, 2026
Windows Secure Boot is a feature of the Unified Extensible Firmware Interface (UEFI) specification that enhances system security by ensuring only trusted software is loaded during the startup sequence. It verifies the digital signatures of boot components to protect against malicious software and unauthorized access. Key aspects include enhanced security by preventing untrusted code execution, compatibility with various hardware and software configurations, and user control over Secure Boot settings for customization.
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