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Breaking HALFLOOP-24
Breaking HALFLOOP-24
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- Dansarie, Marcus, doktorand, 1985- (författare)
- Försvarshögskolan,Högskolan i Skövde,Institutionen för informationsteknologi,Forskningsmiljön Informationsteknologi,Swedish Defence University, Stockholm, Sweden,Information Systems,Avdelningen för försvarssystem,University of Skövde, (SWE)
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- Derbez, Patrick (författare)
- Univ Rennes, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Rennes, France
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- Leander, Gregor (författare)
- Ruhr University Bochum, Germany,Ruhr University Bochum, (DEU)
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- Stennes, Lukas (författare)
- Ruhr University Bochum, Germany,Ruhr University Bochum, (DEU)
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(creator_code:org_t)
- 2022-09-09
- 2022
- Engelska.
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Ingår i: IACR Transactions on Symmetric Cryptology. - Bochum : Ruhr-Universität Bochum. - 2519-173X. ; :3, s. 217-238
- Relaterad länk:
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https://doi.org/10.4...
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https://his.diva-por... (primary) (Raw object)
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https://fhs.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.4...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- HALFLOOP-24 is a tweakable block cipher that is used to protect automatic link establishment messages in high frequency radio, a technology commonly used by government agencies and industries that need highly robust long-distance communications. We present the first public cryptanalysis of HALFLOOP-24 and show that HALFLOOP-24, despite its key size of 128 bits, is far from providing 128 bit security. More precisely, we give attacks for ciphertext-only, known-plaintext, chosen-plaintext and chosen-ciphertext scenarios. In terms of their complexities, most of them can be considered practical. However, in the real world, the amount of available data is too low for our attacks to work. Our strongest attack, a boomerang key-recovery, finds the first round key with less than 210 encryption and decryption queries. In conclusion, we strongly advise against using HALFLOOP-24.
Ämnesord
- NATURVETENSKAP -- Matematik -- Annan matematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Other Mathematics (hsv//eng)
Nyckelord
- HF Radio
- ALE
- HALFLOOP
- Boomerang
- Information Systems
- Informationssystem (IS)
- Försvarssystem
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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