Authentication and validation of smartphone imagery

An authentication centric entity including at least one server, the at least one server being connected to receive and authenticate digitally-signed watermarked images from any of a plurality of registered image capture devices, and to receive submitted image authentication and validation requests from users, the authentication centric entity including hardware and processor-executed software for carrying out the following steps:

• the authentication centric entity receiving from a digital image capture device a digitally signed watermarked still or video image, symmetric key, and metadata, wherein the metadata is in addition to the watermarked still or video image, and is information associated with the image capture, said information including at least one of the following:
• a time of capture of the image;
• a date of capture of the image;
• camera settings at the time of image capture;
• an orientation of the image capture device at the time of image capture;
• data concerning movement of the image capture device at the time of image capture;
• context information including sounds or words captured contemporaneously with the image;
• a direction in which the image is captured;
• and
• the authentication centric entity verifying, by a digital computing device, the authenticity of the watermarked image, symmetric key, and metadata by decrypting the digital signature;
• the authentication centric entity storing the watermarked image, symmetric key, and metadata, including Exif-like metadata, in at least one data storage device;
• upon the authentication centric entity receiving a submitted image of unconfirmed authenticity from any sender, the authentication centric entity searching the at least one data storage device for a stored watermarked image that corresponds to the submitted image, the authentication centric entity comparing the submitted image with the stored watermarked image;
• if the submitted image of unconfirmed authenticity matches the stored and previously authenticated watermarked image or if differences between the submitted image of unconfirmed authenticity and the stored and previously authenticated watermarked image are acceptable differences, the authentication centric entity carrying out additional authentication of the submitted image by retrieving at least the stored Exif-like metadata and comparing the retrieved Exif-like metadata with Exif-like metadata extracted from the submitted image of unconfirmed authenticity;
• and
• the authentication centric entity notifying sending a notice to the sender of the submitted image of unconfirmed authenticity that the image of unconfirmed authenticity submitted by the sender is deemed to be at least potentially authentic and valid.