Patent ID: 7987375
Filing Date: 2011-07-26
Classification: H04L

Abstract:
1. A communication apparatus having a function of transmitting data at a designated time, comprising: a storage unit configured to store generation information to be used for generating an electronic signature; a signature generation unit configured to generate the electronic signature using the generation information; a transmission reserving unit configured to reserve transmission of data to which the electronic signature generated by the signature generation unit is to be added; a receiving unit configured to receive from a user a request for deleting the generation information; and a delete unit configured to delete, in a case where the receiving unit receives the request for deleting the generation information and the transmission of the data to which the electronic signature is to be added is not reserved by the transmission reserving unit, the generation information, wherein the delete unit, in a case where the receiving unit receives the request for deleting the generation information and the transmission of the data to which the electronic signature is to be added is reserved by the transmission reserving unit, does not delete the generation information to be used for generating the electronic signature.