Software Library for Ciphertext/Key-Policy Functional Encryption with Simple Usability

• Hasegawa Keisuke

  University of Tsukuba

• Kanayama Naoki

  University of Tsukuba

• Nishide Takashi

  University of Tsukuba

• Okamoto Eiji

  University of Tsukuba

抄録

In traditional public key encryption schemes, data encrypted by a public key pk can be decrypted only by a secret key sk corresponding to pk, and the relation between pk and sk is static. Therefore, the schemes are unsuitable for control of access to a single data by several users. Meanwhile, functional encryption (FE) is an encryption scheme that provides more sophisticated and flexible relations between pk and sk. Thus, FE enables only one pk to encrypt the data with any conditions for decryption, so it is considered a very useful tool for the access control of data on the cloud server. However, implementing the current FE scheme is a non-trivial task because the deep knowledge of the scheme is required. This is an obstacle factor to deploy the FE scheme in the real-world security systems. In this paper, we propose an implementation of the FE (Ciphertext-Policy FE and Key-Policy FE, which are useful classes of FE) library usable even for people who do not have the deep knowledge of these schemes.

収録刊行物

• Journal of Information Processing

  Journal of Information Processing 24 (5), 764-771, 2016

  一般社団法人 情報処理学会

キーワード

• functional encryption
• attribute-based encryption
• implementation

詳細情報

• CRID: 1390001205295029376
• NII論文ID: 170000131037
• NII論文ID: 130005415008
• NII書誌ID: AN00116647
• ISSN: 18827764
• ISSN: 18826652
• DOI: 10.2197/ipsjjip.24.764
• Web Site: http://id.nii.ac.jp/1001/00174620/
• Web Site: https://www.jstage.jst.go.jp/article/ipsjjip/24/5/24_764/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可