Presentation	2008-05-16 Hybrid Encryption Scheme in IBE with Applications to Data Storage Hirokazu OUGI,
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Abstract(in English)	In this paper we design and implement a security mechanizm that improves the security and the ability to share files amongst users using cryptographic system such as identity based encryption scheme(IBE). In basic file operations AES for symmetric encryption is carried out, while the symmetric keys are shared among members in some group provided with a number of IDs. Under the supervision of the administrator setteled in the group, the public key for the gruop is generated. Proxy-keys for delegating decryption right concerning to the public key are distributed among members of the group. This paper presents the efficient method to construct this proxy-key according to the ID obtained by the member operating over the Hybrid Encryption Scheme built up with IBE. Our scheme will lead to be secure in the sence of IND-CCA.
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Keyword(in English)	ID-based Encryption / Public key / Hybrid Encryption / IND-CCA
Paper #	ISEC2008-14
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Conference Information
Committee	ISEC
Conference Date	2008/5/9(1days)
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Paper Information
Registration To	Information Security (ISEC)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Hybrid Encryption Scheme in IBE with Applications to Data Storage
Sub Title (in English)
Keyword(1)	ID-based Encryption
Keyword(2)	Public key
Keyword(3)	Hybrid Encryption
Keyword(4)	IND-CCA
1st Author's Name	Hirokazu OUGI
1st Author's Affiliation	()
Date	2008-05-16
Paper #	ISEC2008-14
Volume (vol)	vol.108
Number (no)	38
Page	pp.pp.-
#Pages	8
Date of Issue