Paper Abstract and Keywords |
Presentation |
2005-05-27 14:10
Efficient Strong Multiple Encryption from Relaxed Conditions Yang Cui, Kazukuni Kobara, Hideki Imai (Univ. of Tokyo) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Security of communication systems could be enhanced by multiple
encryption has been noted by Shannon's pioneering work, (Shannon,
``Communication Theory of Secrecy Systems'' \emph{Bell Syst.\ Tech.\
J.}, 1949). Although this security (``product ciphers") for
symmetric key encryptions was presented more than half a century
ago, the appropriate one for public key encryptions has been not
rigourously defined until very recently. However, the strongest
version of this notion has only been achieved very inefficiently,
and the ciphertext will have a huge overhead both for speed and
bandwidth. More significantly, the work that has achieved the strong
security of multiple encryption must be all made up of adaptively chosen
ciphertext secure (CCA) primitives, which is a strict requirement
because commonly used public key primitives are in relatively weak
level.
This paper shows the general way and a concrete construction which
is proven to achieve the strongly secure multiple encryption, from
relaxed conditions, requiring merely one primitive in CCA sense and
efficiently especially in bandwidth. Also a wide range of
applications in cryptology could be implemented by this generic
solution. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Efficient / Strong Multiple Encryption / / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 105, no. 85, IT2005-30, pp. 47-51, May 2005. |
Paper # |
IT2005-30 |
Date of Issue |
2005-05-20 (IT) |
ISSN |
Print edition: ISSN 0913-5685 |
Download PDF |
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Conference Information |
Committee |
IT |
Conference Date |
2005-05-25 - 2005-05-27 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Univ. of Hawaii |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
general |
Paper Information |
Registration To |
IT |
Conference Code |
2005-05-IT |
Language |
English |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Efficient Strong Multiple Encryption from Relaxed Conditions |
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Efficient |
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Strong Multiple Encryption |
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1st Author's Name |
Yang Cui |
1st Author's Affiliation |
University of Tokyo (Univ. of Tokyo) |
2nd Author's Name |
Kazukuni Kobara |
2nd Author's Affiliation |
University of Tokyo (Univ. of Tokyo) |
3rd Author's Name |
Hideki Imai |
3rd Author's Affiliation |
University of Tokyo (Univ. of Tokyo) |
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Speaker |
Author-1 |
Date Time |
2005-05-27 14:10:00 |
Presentation Time |
20 minutes |
Registration for |
IT |
Paper # |
IT2005-30 |
Volume (vol) |
vol.105 |
Number (no) |
no.85 |
Page |
pp.47-51 |
#Pages |
5 |
Date of Issue |
2005-05-20 (IT) |
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