Title:
ＩＤベースハッシュ証明系構成装置、ＩＤベース暗号装置及びプログラム
Document Type and Number:
Japanese Patent JP7024666
Kind Code:
B2
Abstract:
An ID-based hash proof system configuration apparatus includes a processor, and a memory storing program instructions that cause the processor to receive a security parameter, and output a public parameter and a master private key by using a multi identity-based encryption (MIBE) setup algorithm and a key K randomly selected, receive the public parameter, the master private key, and an identifier, and output a private key by using a bit value ri (1≤i≤n) that is selected, and a MIBE key generation algorithm, receive the public parameter and the identifier, and output a ciphertext and a key k by using a MIBE encryption algorithm, receive the public parameter and the identifier, and output a wrong ciphertext by using the MIBE encryption algorithm, and receive the public parameter, the private key, the identifier, and the ciphertext, and output the key k by using a MIBE decryption algorithm.
Inventors:
Takashi Yamakawa
Nishimaki Ryo
Nishimaki Ryo
Application Number:
JP2018159768A
Publication Date:
February 24, 2022
Filing Date:
August 28, 2018
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G09C1/00
Domestic Patent References:
| JP2018112613A |
Foreign References:
| CN101399664A |
Other References:
高安 敦 ほか,復号鍵漏洩耐性を持つ鍵失効機能付きIDベース暗号の一般的な構成,CSS2017 コンピュータセキュリティシンポジウム2017論文集 [CD-ROM],日本,一般社団法人情報処理学会,2017年10月16日,Vol.2017,No.2,3E2-1,p.1156-1163
ZHOU, Yanwei et al.,Anonymous and Updatable Identity-Based Hash Proof System,IEEE Systems Journal,米国,IEEE,2018年11月19日,Volume 13, Issue 3,p. 2818 - 2829
HAZAY, Carmit et al.,Leakage-Resilient Cryptography from Minimal Assumptions,Journal of CRYPTOLOGY,2016年,Vol.29, No.3,p. 514-551
NISHIMAKI, Ryo et al.,Leakage-resilient Identity-based Encryption in Bounded Retrieval Model with Nearly Optimal Leakage-R,Cryptology ePrint Archive: Report 2019/045,[オンライン],2019年01月25日,Version: 20190125:203050,,[検索日 2019.08.30],インターネット
ZHOU, Yanwei et al.,Anonymous and Updatable Identity-Based Hash Proof System,IEEE Systems Journal,米国,IEEE,2018年11月19日,Volume 13, Issue 3,p. 2818 - 2829
HAZAY, Carmit et al.,Leakage-Resilient Cryptography from Minimal Assumptions,Journal of CRYPTOLOGY,2016年,Vol.29, No.3,p. 514-551
NISHIMAKI, Ryo et al.,Leakage-resilient Identity-based Encryption in Bounded Retrieval Model with Nearly Optimal Leakage-R,Cryptology ePrint Archive: Report 2019/045,[オンライン],2019年01月25日,Version: 20190125:203050,
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Ryuji Ishihara
Tadahiko Ito
Ryuji Ishihara