Microsoft Bolsters Windows with Quantum-Resistant⁣ Encryption

Updated May 31,​ 2025

Microsoft is proactively updating ​Windows 11 with new encryption algorithms designed to withstand potential attacks from ‍quantum computers. This move anticipates ⁣a‌ significant⁤ technological shift, as quantum computing ⁤promises unprecedented advancements​ across various fields.

While fully functional quantum computers remain in advancement, their⁣ theoretical capabilities are well-established. Unlike traditional computers that process data as bits representing 0 or 1,quantum‍ computers use qubits. ⁢Qubits leverage quantum mechanics to exist in multiple states simultaneously, potentially revolutionizing metallurgy, chemistry, drug discovery, and financial⁢ modeling.

Averting ‌a⁢ Cryptographic Crisis

One major implication of quantum computing is its ability‍ to break widely used encryption methods, including ⁤the RSA cryptosystem and elliptic ⁢curve cryptography. These systems are fundamental to securing sensitive data for ‍banks, governments, and online services globally. While ​current computers would take millions​ of years⁣ to crack RSA and elliptic curve encryption keys, a quantum ​computer could achieve this in mere⁢ hours.

At the ⁣BUILD 2025 conference,‍ Microsoft ‍announced the integration of quantum-resistant algorithms into SymCrypt, Windows’ core cryptographic library. This‌ update is ​available in Windows ⁢11 Build​ 27852 ‍and later versions. Furthermore, Microsoft has updated SymCrypt-OpenSSL, its open-source project, enabling the⁣ widely ⁤adopted OpenSSL library to utilize SymCrypt⁤ for ⁢cryptographic operations.

What’s next

The move⁤ to integrate quantum-resistant encryption is expected to continue, with further updates and integrations across‌ Microsoft products and ‍services as ‍the threat‌ landscape evolves.