USER-MEDIATOR MEDIATING TRANSFER OF ELECTRONIC CONTENT

摘要

Methods, systems and apparatuses for a user-mediator mediating transfer of electronic content, are disclosed. One method includes receiving, by a mediator computing device of the user-mediator, a second share SKG2 from an owner-publisher server of an owner-publisher, wherein a first share SKG1 is provided to a member server of a member of a group by the owner-publisher. The method further includes the user-mediator receiving a request, by the member, for mediation, comprising the user-mediator receiving a dispatch of the header of the encrypted electronic content from the member, determining, by the user-mediator, whether the member is eligible to decrypt the electronic content, if eligible, the user-mediator responding to the request for mediation with a member accessible header.

主权项

1. A method of a user-mediator mediating transfer of electronic content, comprising:
receiving, by a mediator computing device of the user-mediator, a second share SKG2 from an owner-publisher server of an owner-publisher, wherein a first share SKG1 is provided to a member server of a member of a group by the owner-publisher; wherein the group is created by the owner-publisher server generating a group public key PKG and a group secret key SKG; wherein the member is added by owner-publisher server to the group by generating the first share SKG1 from the group secret key SKG and a public key of the member, and the second share SKG2 from the group secret key SKG and a public key of the user-mediator; wherein the owner-publisher publishes an electronic content for the group, comprising the owner-publisher encrypting the electronic content to the group public key PKG, wherein the electronic content includes a header and a payload; and wherein the member obtains the encrypted electronic content; further comprising; the user-mediator receiving a request, by the member, for mediation, comprising the user-mediator receiving a dispatch of the header of the encrypted electronic content from the member; determining, by the user-mediator, whether the member is eligible to decrypt the electronic content, if eligible, the user-mediator responding to the request for mediation with a member accessible header, wherein the member accessible header includes the header after application of SKG2; wherein the member obtains a secret based on SKG1 and the member accessible header; and wherein the member decrypts the payload of the electronic content using the secret.