(An) HE-friendly cipher using modular arithmetic모듈로 연산에 기반한 동형암호 친화적 비밀키 암호

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 415
  • Download : 0
DC FieldValueLanguage
dc.contributor.advisorLee, Jooyoung-
dc.contributor.advisor이주영-
dc.contributor.authorHa, Jincheol-
dc.date.accessioned2022-04-27T19:32:25Z-
dc.date.available2022-04-27T19:32:25Z-
dc.date.issued2021-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=948632&flag=dissertationen_US
dc.identifier.urihttp://hdl.handle.net/10203/296198-
dc.description학위논문(석사) - 한국과학기술원 : 정보보호대학원, 2021.2,[iv, 35 p. :]-
dc.description.abstractThe Rasta cipher, proposed by Dobraunig et al. (CRYPTO 2018), is an HE-friendly cipher enjoying the fewest ANDs per bit and the lowest ANDdepth among the existing ciphers. A novel feature of Rasta is that its affine layers are freshly and randomly generated for every encryption. In this paper, we propose a new variant of Rasta, dubbed Masta. Similarly to Rasta, Masta takes as input a (master) secret key and a nonce, and generates a keystream block for each counter. On the other hand, Masta has two main differences from Rasta: Masta uses modular arithmetic to support HE schemes over a non-binary plaintext space, and it uses a smaller number of random bits in the affine layers by defining them with finite field multiplication. In this way, Masta outperforms Rasta in a transciphering framework with BGV/FV-style HE schemes. Our implementation shows that Masta is 505 to 592 times faster in terms of the throughput on the client-side, while 4792 to 6986 times faster on the server-side.-
dc.languageeng-
dc.publisher한국과학기술원-
dc.subjecthomomorphic encryption▼astream cipher▼atransciphering framework▼amodular arithmetic▼afinite field multiplication-
dc.subject동형 암호▼a스트림 암호▼a암호문 변환 프레임워크▼a모듈로 연산▼a유한체 곱셈-
dc.title(An) HE-friendly cipher using modular arithmetic-
dc.title.alternative모듈로 연산에 기반한 동형암호 친화적 비밀키 암호-
dc.typeThesis(Master)-
dc.identifier.CNRN325007-
dc.description.department한국과학기술원 :정보보호대학원,-
dc.contributor.alternativeauthor하진철-
Appears in Collection
IS-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0