Relationship between Standard Model Plaintext Awareness and Message Hiding

• TERANISHI Isamu

  NEC Corporation Tokyo Institute of Technology

• OGATA Wakaha

  Tokyo Institute of Technology The Institute of Electronics, Information and Communication Engineers

抄録

Recently, Bellare and Palacio defined the plaintext awareness (PA-ness) in the standard model. In this paper, we study the relationship between the standard model PA-ness and the property about message hiding, that is, IND-CPA. Although these two notions seem to be independent at first glance, we show that PA-ness in the standard model implies the IND-CPA security if the encryption function is oneway. By using this result, we also showed that “PA+Oneway⇒IND-CCA2.” We also show that the computational PA-ness notion is strictly stronger than the statistical one.

収録刊行物

• IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E91-A (1), 244-261, 2008

  一般社団法人 電子情報通信学会

キーワード

• plaintext awareness
• standard model

詳細情報

• CRID: 1390282681288880128
• NII論文ID: 10026847026
• NII書誌ID: AA10826239
• DOI: 10.1093/ietfec/e91-a.1.244
• ISSN: 17451337
• ISSN: 09168508
• Web Site: http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100548646
• Web Site: https://www.jstage.jst.go.jp/article/transfun/E91.A/1/E91.A_1_244/_pdf
• 本文言語コード: en
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