Narrow Bandwidth Is Not Inherent in Reverse Public-Key Encryption

Abstract : Reverse Public-Key Encryption (RPKE) is a mode of operation exploiting a weak form of key privacy to provide message privacy. In principle, RPKE offers a fallback mode, if the underlying encryption scheme’s message secrecy fails while a weak form of key privacy survives. To date, all published RPKE constructions suffer from a low bandwidth, and low bandwidth seems naturally inherent to reverse encryption. We show how reverse encryption can, in connection with and as a novel application of anonymous broadcast encryption, achieve high-bandwidth. We point out that by using traditional and reverse encryption simultaneously, a form of crypto-steganographic channel inside a cryptosystem can be provided.
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Communication dans un congrès
Security and Cryptography for Networks, Oct 2014, Amalfi, Italy. Springer, Lecture Notes in Computer Science Volume 8642, pp.9, 2014, Security and Cryptography for Networks. 〈http://scn.dia.unisa.it/〉. 〈10.1007/978-3-319-10879-7_34〉
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https://hal.inria.fr/hal-01098406
Contributeur : David Naccache <>
Soumis le : mercredi 24 décembre 2014 - 14:51:01
Dernière modification le : vendredi 25 mai 2018 - 12:02:05

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David Naccache, Steinwandt Rainer, Suárez Adriana, Moti Yung. Narrow Bandwidth Is Not Inherent in Reverse Public-Key Encryption. Security and Cryptography for Networks, Oct 2014, Amalfi, Italy. Springer, Lecture Notes in Computer Science Volume 8642, pp.9, 2014, Security and Cryptography for Networks. 〈http://scn.dia.unisa.it/〉. 〈10.1007/978-3-319-10879-7_34〉. 〈hal-01098406〉

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