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

这个小企业创新研究第一阶段项目旨在开发一种隐秘的系统，该系统具有人眼无法看到的定制模式的起始图像，以及一种检测仪器，该仪器将在适当的审讯中显示图像以进行认证。解密需要同时查看两个模板。模板的隐蔽图像将从计算机生成全息图（CGHs）中创建，CGHs使用傅里叶变换等反函数，从而对原始图像进行编码。利用纳米或飞秒激光烧蚀技术或无掩膜光刻技术，将每个互补文件的信息嵌入为透明的纳米结构，并将数字微镜装置（DMD）修改为空间光调制器。原始图像将在两个互补部分的适当并置同时与来自适当解码仪器的投影光同时显示。通过伪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%的身份识别行业（军事、商业、工业、私人和政府办公室）依赖肖像身份证作为其主要的访问控制手段。建议的身分验证系统，旨在透过在现有的塑胶身分证内嵌入代表生物特征及/或其他身分识别特征的隐蔽签名，以加强该等身分证的保安。

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.