For authenticating pharmaceutical packaging.Integrated into QR Codes to enable consumers to check product authenticity with a smartphone application.They were used in 2006 to protect identification badges during the FIFA World Cup. For securing identification documents, in combination with digital watermarks and 2D barcodes.As a means of providing a product authentication service using the Internet of Things.and show that a classifier based on support vector domain description outperforms other classification methods.ĬDPs are used for different physical item authentication applications: In, different attack methods based on restoration of the scanned CDP are tested.
#Copy em paste security verification
Contrarily to many traditional security printing techniques, CDPs do not rely on Security by Obscurity, as the algorithm for generating CDPs can be public as long as the key used to generate it or the digital CDP is not revealed. They are motivated by the need for security features that can be originated, managed and transferred digitally, and that are machine readable. By measuring the information in the scanned CDP, the detector can determine whether the CDP is an original print or a copy.ĬDPs aim to address limitations of optical security features such as security holograms. Since producing a counterfeit CDP requires an additional scanning and printing processes, it will have less information than an original CDP. A CDP is a maximum entropy image that attempts to take advantage of this information loss. The detection of counterfeits using a CDP relies on an "information loss principle", which states that every time a digital image is printed or scanned, some information about the original digital image is lost.