3-dimensional shape data encryption and decryption

Adhesive photocopyable transparency for use in a secure facsimil

Anticounterfeiting method and device utilizing holograms and pse

Apparatus and method for computer screen security

Authenticating pseudo-random code and apparatus

Authentication method and system

Automatic secure transmission and reception of pictorial informa

Biometric input with encryption

Color correct digital watermarking of images

Cryptosystem for encrypting digital image or voice file

Decryption device

Diffraction gratings used as identifying markers

Digital image coding/decoding apparatus and method for...

Digital watermarking

Electronic device for detecting selected visually perceptible in

Electronic forms including digital watermarking

Embedding information related to a subject of an...

Forgery-proof packaging material with a security feature

Graphical manipulation of encryption

Interferometric optical fiber data link