SBIR Phase I: Authentication Using Covert Identification Signatures On Plastic ID Cards

该小型企业创新研究第一阶段项目旨在开发一种隐蔽系统，该系统具有眼睛不可见的起始图像的定制图案和一种检测仪器，该检测仪器将在适当的询问下显示图像以进行认证。 解密需要同时查看两个模板。模板的隐藏图像将由计算机生成全息图（CGH）创建，CGH使用傅立叶变换等逆函数，从而对原始图像进行编码。每个补充文件的信息将通过使用纳秒或飞秒激光烧蚀技术或具有经修改以充当空间光调制器的数字微镜装置（DMD）的无掩模光刻而嵌入为透明纳米结构。当两个互补件适当地并置时，原始图像将被显示，同时具有来自适当的解码仪器的投射光。通过假冒制造受版权保护的材料、品牌名称、商标财产、信用卡甚至个人身份而进行的未经授权的复制和盗窃是当今企业和个人最关心的问题之一。如今，95%的ID行业（军事，商业，工业，私人和政府办公室）依赖于肖像ID卡作为其访问控制的主要手段。建议的身份证认证系统旨在通过在现有的塑料身份证上嵌入代表生物特征和/或其他识别特征的隐蔽签名来补充这种身份证的安全方面。

This Small Business Innovation Research Phase I project is intended to develop a covert system of a customized pattern of the starting image that is invisible to the eye and a detection instrument that will display the image upon appropriate interrogation for authentication. Decryption will require the simultaneous viewing of two templates. The covert images for the templates will be created from Computer Generated Holograms (CGHs) that use inverse functions like Fourier transformations and thereby code the original image. The information of each of the complementary files will be embedded as transparent nanostructures by either using nano- or femto- second laser ablation technology or maskless photolithography with a Digital Micromirror Device (DMD) modified to act as a Spatial Light Modulator. The original image will be revealed upon appropriate juxtaposition of both complementary pieces simultaneously with projected light from an appropriate decoding instrument.The unauthorized copying and theft through the counterfeit manufacture of copyrighted materials, brand name, trademarked property, credit cards and even individual identities is one of the greatest concerns of both businesses and individuals today. Today 95 percent of the ID industry (military, commercial, industrial, private and government offices) relies on portrait ID cards as their primary means of access control. The proposed ID authentication system aims to supplement the security aspects of such ID cards by embedding covert signatures, representing biometric and/or other identification features, onto current plastic ID cards.