1. A digital camera with apparatus for authentication of images produced from an image file taken by said digital camera of a scene, said digital camera having embedded therein a private key unique to said digital camera and a known public key so uniquely based upon said private key that digital data encrypted with said private key may be decrypted using said public key, said digital camera apparatus comprising first means for calculating image hash of said image file using a predetermined algorithm, second means for encrypting said image hash with said embedded private key, thereby producing a digital signature uniquely associated with said image file, and third means for maintaining association of both said image file and said digital signature derived from said image file by said first and second means.