A construction of cramer-shoup like encryption protocols based on the anshel-anshel-goldfeld key exchange protocol

研究成果: Conference contribution

抄録

We propose a secure encryption protocol on non-abelian groups. We follow the line of the construction of the Cramer-Shoup encryption protocol, which is proved to be indistinguishable against adaptive chosen ciphertext attack (IND-CCA, for short) by refining the ElGamal encryption protocol. In our protocol, the Anshel-Anshel-Goldfeld key exchange protocol plays the role of the Diffie-Hellman key exchange protocol in the Cramer-Shoup protocol. We then prove that the proposed protocol is indistinguishable against adaptive chosen ciphertext attacks in a slightly restricted sense, what we call the IND-rCCA security. The security notion of IND-rCCA is weaker than that of IND-CCA in a sense that the adversary's query is somewhat restricted in the security game.

本文言語English
ホスト出版物のタイトルProceedings - 2018 6th International Symposium on Computing and Networking Workshops, CANDARW 2018
出版社Institute of Electrical and Electronics Engineers Inc.
ページ410-416
ページ数7
ISBN(電子版)9781538691847
DOI
出版ステータスPublished - 2018 12 26
イベント6th International Symposium on Computing and Networking Workshops, CANDARW 2018 - Takayama, Japan
継続期間: 2018 11 272018 11 30

出版物シリーズ

名前Proceedings - 2018 6th International Symposium on Computing and Networking Workshops, CANDARW 2018

Conference

Conference6th International Symposium on Computing and Networking Workshops, CANDARW 2018
国/地域Japan
CityTakayama
Period18/11/2718/11/30

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • ハードウェアとアーキテクチャ
  • 統計学、確率および不確実性
  • コンピュータ サイエンスの応用

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