HELEN: a Public-key Cryptosystem Based on the LPN Problem (Extended Abstract)

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Názov: HELEN: a Public-key Cryptosystem Based on the LPN Problem (Extended Abstract)
Autori: Duc, Alexandre, Vaudenay, Serge
Rok vydania: 2012
Zbierka: Ecole Polytechnique Fédérale Lausanne (EPFL): Infoscience
Predmety: Code-based cryptosystem, learning from parity with noise problem, minimum distance problem, random linear code, public-key cryptosystem
Popis: We propose HELEN, a new code-based public-key cryptosystem whose security is based on the hardness of the Learning from Parity with Noise problem~(LPN) and the decisional minimum distance problem. We show that the resulting cryptosystem achieves indistinguishability under chosen plaintext attacks (IND-CPA security). Using the Fujisaki-Okamoto generic construction, HELEN achieves IND-CCA security in the random oracle model. We further propose concrete parameters. ; LASEC
Druh dokumentu: conference object
Jazyk: unknown
Relation: https://infoscience.epfl.ch/record/181613/files/helen.pdf; YACC 2012; https://infoscience.epfl.ch/handle/20.500.14299/85892
Dostupnosť: https://infoscience.epfl.ch/handle/20.500.14299/85892
https://hdl.handle.net/20.500.14299/85892
Prístupové číslo: edsbas.CB2E631C
Databáza: BASE
Popis
Abstrakt:We propose HELEN, a new code-based public-key cryptosystem whose security is based on the hardness of the Learning from Parity with Noise problem~(LPN) and the decisional minimum distance problem. We show that the resulting cryptosystem achieves indistinguishability under chosen plaintext attacks (IND-CPA security). Using the Fujisaki-Okamoto generic construction, HELEN achieves IND-CCA security in the random oracle model. We further propose concrete parameters. ; LASEC