Communication apparatus, control method thereof and computer...

Details Communication apparatus, control method thereof and computer... Communication apparatus, control method thereof and computer...

2011-07-26

2011-07-26

Zand, Kambiz (Department: 2434)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C713S176000

Reexamination Certificate

active

07987375

ABSTRACT:
If electronic certificate data containing a private key and public key to be used to add an electronic signature to data with timer transmission setting is deleted, no electronic signature can be added at the set timer transmission time. To accomplish this, when timer transmission and electronic signature addition using stored key information and electronic certificate are set for transmission target data (YES in S38), deletion of the stored key information and electronic certificate to be used for generating an electronic signature is restricted (S40).

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