ENCRYPTING DATA WITHIN A HOST IMAGE

摘要

Image-hosted data encryption implementations are presented that encrypt and decrypt data within a host image. A bit stream representing a data item and a host image are accessed. The host image has pixels which include one or more color channels that are represented by bits that are interpreted when the host image is rendered and other bits that are not interpreted when the host image is rendered. The bit stream is inserted into the host image by injecting bits into the bits of the one or more color channels not interpreted when the host image is rendered. In this way, the inserted data is not seen when the host image is rendered. Decryption involves extracting bits associated with a bit stream from the bits of the one or more color channels of the host image pixels not interpreted when the host image is rendered, and then reconstructing the bit stream.

主权项

1. A system for encrypting data within a host image, comprising:
one or more computing devices each comprising a processor, communication interface and memory, wherein said computing devices are in communication with each other via a computer network whenever there are multiple computing devices; and a computer program having program modules executable by the computing device or devices, the computing device or devices being directed by the program modules of the computer program to,
access a bit stream representing a data item;access a host image which has pixels comprising one or more color channels that are represented by bits that are interpreted when the host image is rendered and other bits that are not interpreted when the host image is rendered; andinsert the bit stream into the host image by injecting bits thereof into the bits of the one or more color channels of the host image pixels that are not interpreted when the host image is rendered.