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Accession number;07A0065921
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| Title;Proposal of the Crypto SLA and Its Support Tool against Compromising of Cryptosystems |
| Author;
INOMATA ATSUO
(Japan Sci. and Technol. Agency, JPN(JST))
OYAMA YOSHIHITO
(Univ. of Tsukuba)
OKAMOTO EIJI
(Univ. of Tsukuba)
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Journal Title;IPSJ Transactions on Database
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Journal Code:Z0778A
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ISSN:0387-5806
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VOL.48;NO.1;PAGE.178-188(2007)
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| Figure&Table&Reference;FIG.5, TBL.7, REF.32 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Cryptography is one of basis technologies for safety communication. The cryptography strength depends on the difficulty of the cryptanalysis. The strength could be gradually compromising due to an epoch-making cryptanalysis or an enhancement in the computation power and so on. So this is the cryptography compromising problem. If the case that information leaked out by a cipher deciphering as for the cryptography compromising cause, then it is impossible to return it to the ordinal condition that is why the information leak is quite different from the physical robbery. Nowadays it is becoming important to recognize the cryptography compromising problem in secure society. By the way, SLA (Service Level Agreement) begins to be provided to compensate as a substitute of that damage on the suspend or the delay of the communication service in the tele-communication carrier. The SLA is the agreement like a guarantee which is exchanged after previously agreed agreement between the service provider and its users on the cryptography infrastructure. In this paper, we propose the Crypto SLA with the aim of making agreement between the service provider and the concerned users. We define the Crypto-SLA level as the characteristic parameter to keep a tendency of the cryptography compromising. We describe the implementation of the support tool which is for supporting the users and report a simulation result to evaluate the effectiveness of the Crypto SLA. (author abst.) |
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