Patent ID: 9559847
Date: 2017-01-31
CPC Classifications: G06F,G06Q,H04L

Claim:
1. A method for ensuring security of attachments to calendar events transmitted to a plurality of recipients using e-mail, comprising: receiving a request to create a calendar event to be distributed by e-mail, the request including a request to attach at least one document to the calendar event in advance of a time associated with the calendar event; generating an encryption key pair; encrypting the at least one document according to the encryption key pair; establishing an accessible time period associated with the encrypted at least one document, wherein the accessible time period is associated with the calendar event; distributing the calendar event, using e-mail and prior to the accessible time period, with an attachment including the encrypted at least one document to a plurality of users; prohibiting access to the encrypted at least one document sent using e-mail by the plurality of recipients prior to the accessible time period; determining whether a current time falls within the accessible time period; and in response to determining that the current time falls within the accessible time period, permitting the encrypted at least one document to be decrypted.