莱迪思博客

One of the more exciting developments now happening in the high-tech world is the work being done to enable quantum computing. After decades of theoretical discussion and development, the last few years have shown tangible progress in this radically different (and enormously complex) new method of computing. Quantum computers essentially perform calculations by flipping the electrical charge of individual atoms and allowing them to simultaneously exist in more than one state through a process ca...

Quantum computing is no longer just a concept confined to research labs. Thanks to rapid progress in both hardware and algorithms, the risk to today’s cryptographic systems is steadily increasing. In 2025, Google’s 105-qubit Willow chip and Microsoft’s Majorana 1 processor demonstrated that scalable quantum systems are moving closer to practical reality. Industry experts now predict that quantum computers capable of breaking RSA-2048 encryption could arrive as early as 2030 to ...

2024年8月13日，美国国家标准与技术研究院（NIST）发布了期待已久的后量子密码学（PQC）标准。这些标准引入了三种新的加密算法，旨在保护系统免受经典计算机和未来的量子计算机攻击，从而为RSA和ECC非对称加密算法提供必要的发展路径。在这篇博客中，我们概述了这些标准的影响，以及系统设计人员过渡到PQC的基本步骤。 了解新的PQC算法 全新的标准化算法包括： ML-DSA（CRYSTALS-Dilithium）：一种强大的数字签名算法。 ML-KEM（CRYSTALS-Kyber）：一种专为安全密钥交换而设计的密钥封装机制。 SLH-DSA（SPHINCS+）：另一种数字签名算法，提供了ML-DSA的替代方案。 NIST还标准化了两种基于状态哈希的后量子算法：LMS和XMSS。这些算法可用于生成和验证数字签名。虽然这两种算法并不适合所有用例，但它们非常适合代码和固件签名。LMS和XMSS是实现安全或可信启动、安全软件/固件更新和FPGA位流安全编程的理想选择。 鉴于量子计算机可能破解传统非对称加密方法，“先窃取后解密”（SNDL）的...