Paper Abstract and Keywords |
Presentation |
2006-06-23 13:00
Relationships between Data-Privacy and Key-Privacy Ryotaro Hayashi, Keisuke Tanaka (Tokyo Inst. of Tech.) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The classical security requirement
of public-key encryption schemes is
that it provides privacy
of the encrypted data.
Popular formalizations
such as one-wayness (OW) or indistinguishability (IND)
are directed at capturing
various data-privacy requirements.
Bellare, Boldyreva, Desai, and Pointcheval
proposed a new security requirement of encryption schemes called
``key-privacy'' or ``anonymity''
(IK, which means ``indistinguishability of keys.'').
It asks that an encryption scheme provides
privacy of the key under which the
encryption was performed.
Related to this security notion,
Halevi provided a simple sufficient condition
(which we denote IKR)
and he showed
IND and IKR implies IK.
Recently, Hayashi and Tanaka
proposed a new definition of the anonymity property,
which we call the strong anonymity (sIK).
In this paper, we show the relationships
between data-privacy (IND, OW) and key-privacy (IK, IKR, sIK). |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
public-key encryption / anonymity / indistinguishability / one-wayness / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 106, no. 128, COMP2006-20, pp. 21-27, June 2006. |
Paper # |
COMP2006-20 |
Date of Issue |
2006-06-16 (COMP) |
ISSN |
Print edition: ISSN 0913-5685 |
Download PDF |
|
Conference Information |
Committee |
COMP |
Conference Date |
2006-06-23 - 2006-06-23 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Saitama Univ. |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
COMP |
Conference Code |
2006-06-COMP |
Language |
English (Japanese title is available) |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Relationships between Data-Privacy and Key-Privacy |
Sub Title (in English) |
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Keyword(1) |
public-key encryption |
Keyword(2) |
anonymity |
Keyword(3) |
indistinguishability |
Keyword(4) |
one-wayness |
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Keyword(6) |
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1st Author's Name |
Ryotaro Hayashi |
1st Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
2nd Author's Name |
Keisuke Tanaka |
2nd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Inst. of Tech.) |
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Speaker |
Author-1 |
Date Time |
2006-06-23 13:00:00 |
Presentation Time |
35 minutes |
Registration for |
COMP |
Paper # |
COMP2006-20 |
Volume (vol) |
vol.106 |
Number (no) |
no.128 |
Page |
pp.21-27 |
#Pages |
7 |
Date of Issue |
2006-06-16 (COMP) |
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