Australian researchers have described a new and faster way of provoking collisions of the SHA-1 hash algorithm. With their method, a collision can be found using only 252 attempts. This makes practical attacks feasible and could have an impact on the medium-term use of the algorithm in digital signatures. Researchers combined a boomerang attack with the search for differential paths to reduce the complexity of the collision process, the researchers combined a.boomerang. attack with search for. differential paths. To reduce the. complexity of. the collision. process, researchers combined the.
Source: https://threatpost.com/new-attack-produces-quicker-sha-1-collisions-061109/72809/