MOBILE COMMUNICATION TERMINAL, INFORMATION PROCESSING METHOD, DATA PROCESSING PROGRAM, AND RECORDING MEDIUM

Title:

MOBILE COMMUNICATION TERMINAL, INFORMATION PROCESSING METHOD, DATA PROCESSING PROGRAM, AND RECORDING MEDIUM

Document Type and Number:

WIPO Patent Application WO/2003/067811

Kind Code:

A1

Abstract:

A transmission side mobile telephone (10) includes a controller (11) for realizing functions of data encryption means, first key encryption means, and encryption file generation means. The data encryption means encrypts data by using a first encryption key. The first key encryption means encrypts the first encryption key by using a second encryption key. The encryption file generation means generates an encryption file of the data from the data encrypted by the data encryption means, the first encryption key encrypted by the first key encryption means, and user unique information capable identifying a user of the mobile communication terminal.

Inventors:

UCHIDA MOTOYUKI (JP)
TAKAMI TADAO (JP)
URAKAWA YASUTAKA (JP)
KADOHIRO TAKASHI (JP)
TOMODA HIROAKI (JP)
HOSHI SEIJI (JP)
ITO MAKOTO (JP)

Application Number:

PCT/JP2003/001299

Publication Date:

August 14, 2003

Filing Date:

February 07, 2003

Export Citation:

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Assignee:

NTT DOCOMO INC (JP)
UCHIDA MOTOYUKI (JP)
TAKAMI TADAO (JP)
URAKAWA YASUTAKA (JP)
KADOHIRO TAKASHI (JP)
TOMODA HIROAKI (JP)
HOSHI SEIJI (JP)
ITO MAKOTO (JP)

International Classes:

H04L9/08; H04L29/06; H04W12/00; H04W12/02; H04W12/04; H04W88/02; (IPC1-7): H04L9/08; H04L9/32; C09C1/00; H04Q7/38; H04M11/00

Foreign References:

JP2000206876A	2000-07-28
JPH01212041A	1989-08-25
JPH10210026A	1998-08-07

Other References: