Patent ID: 9426126
Filing Date: 2016-08-23
CPC Classification: H04L

Claim Text:
1. A computer executed method for facilitating secure communication between a sending device and a receiving device, comprising: receiving, at the receiving device, a benign message sent over a communication channel from the sending device, wherein the benign message is generated from a topic relevant to a user of the receiving device by the sending device; computing a digest from the benign message by hashing the benign message; querying a cover message server with the computed digest to determine whether the benign message indicates that an encrypted message is available at a secure message server, wherein the cover message server compares the computed digest of the benign message received from the receiving device with a digest received from the sending device to determine whether the digest computed from the benign message by the receiving device indicates that the benign message is a cover message indicating that the encrypted message is available at the secure message server; and obtaining the encrypted message from the secure message server, in response to determining that the benign message indicates that the encrypted message is available at the secure message server.