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Differential Collisions in SHA-1
2020 International Conference on Information Science and Communications Technologies (ICISCT), 2020In paper highlights of hash functions differential cryptanalysis on an example of algorithm SHA-1 are considered. The technique of carrying out of the differential analysis of SHA-1 hash function and other hash functions having a similar structure is offered.
Abdurakhimov Bakhtiyor +3 more
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2005
We report on the experiments we performed in order to assess the security of SHA-1 against the attack by Chabaud and Joux [5]. We present some ideas for optimizations of the attack and some properties of the message expansion routine. Finally, we show that for a reduced version of SHA-1, with 53 rounds instead of 80, it is possible to find collisions ...
Vincent Rijmen, Elisabeth Oswald
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We report on the experiments we performed in order to assess the security of SHA-1 against the attack by Chabaud and Joux [5]. We present some ideas for optimizations of the attack and some properties of the message expansion routine. Finally, we show that for a reduced version of SHA-1, with 53 rounds instead of 80, it is possible to find collisions ...
Vincent Rijmen, Elisabeth Oswald
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Introducing Practical SHA-1 Collisions to the Classroom
Proceedings of the 50th ACM Technical Symposium on Computer Science Education, 2019There is a lack of hands-on exercises in cryptanalysis offered at the university level for a variety of reasons. One reason is the high amount of computations needed to complete cryptanalysis attacks. However, enabling students to perform fixed prefix SHA-1 collision attacks on PDFs does not require any advanced computation power. This paper presents a
Monique Mezher, Ahmed Ibrahim 0004
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