About this tag
The SHA-1 deprecation tag covers discussions about the security risks of the SHA-1 hash algorithm, particularly following the first public demonstration of a full SHA-1 collision by security researchers. This event, known as SHAttered, marked a milestone in cryptanalysis and highlighted vulnerabilities in digital certificates and code signing. Microsoft contributed a collision detection tool. The tag focuses on the implications for Windows security, certificate trust, and the industry-wide move away from SHA-1 to stronger algorithms like SHA-2.
  1. News

    SHA-1 Collisions Research

    Today, a group of eight researchers from across the security industry released a research report on SHA-1 that demonstrates for the first time, a “hash collision” for the full SHA-1 hash algorithm (called “SHAttered”). This is a significant step toward understanding this type of security issue...
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    • code signing collision cryptanalysis cryptography cybersecurity dan shumow digital certificates encryption github hashing man-in-the-middle marc stevens microsoft phishing research risk management security sha-1 deprecation sha1 tls
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    • Forum: Security Alerts