Optical encryption and QR codes: Secure and noise-free information retrieval
نویسندگان
چکیده
منابع مشابه
Information Theoretically Secure Encryption with Almost Free Authentication
In cryptology, secure channels enable the exchange of messages in a confidential and authenticated manner. The literature of cryptology is rich with proposals and analysis that address the secure communication over public (insecure) channels. In this work, we propose an information theoretically secure direction for the construction of secure channels. First, we propose a method of achieving un...
متن کاملInformation Security Challenge of QR Codes
The discipline of information security must adapt to new technologies and methods of interaction with those technologies. New technologies present both challenges and opportunities for the security professional, especially for areas such as digital forensics. Challenges can be in the form of new devices such as smartphones or new methods of sharing information, such as social networks. One such...
متن کاملQR Codes and Security Concerns
It is important to differentiate between various objects and places in the real world. Any Smartphone equipped with a camera can read the content of QR code directly. QR codes being a two dimensional codes are useful in storing the information .This information isn’t present in human readable form hence an individual cannot anticipate whether this is a valid information or a maliciously manipul...
متن کاملOptically secured information retrieval using two authenticated phase-only masks
We propose an algorithm for jointly designing two phase-only masks (POMs) that allow for the encryption and noise-free retrieval of triple images. The images required for optical retrieval are first stored in quick-response (QR) codes for noise-free retrieval and flexible readout. Two sparse POMs are respectively calculated from two different images used as references for authentication based o...
متن کاملUsing QR Codes to Connect Patients to Health Information.
THE INNOVATION Patients are engaged with their digital devices at nearly every office visit, texting, checking email, catching up on news, or gaming. I wanted to take advantage of the attention patients pay to their smartphones and turn it into an engagement opportunity. I developed QR (Quick Response) codes for online information about common health issues both to entertain and to educate. Thi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2013
ISSN: 1094-4087
DOI: 10.1364/oe.21.005373