The SHA-1 Attack Further Emphasizes the Need for Crypto-Agility 

The first practical chosen-prefix collision attack on SHA-1 was announced in January 2020 by researchers Gaëtan Leurent and Thomas Peyrin: “SHA-1 is a Shambles”.  

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SHA-1 is Practical and Cost-Effective to Crack Now

This article discusses recent warnings that a chosen-prefix collision attack on SHA-1 is now practical and cost-effective for attackers.

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