Time is an important resource that every enterprise treasures and tries to turn into a benefit. In choosing document management software program, focus on a clutterless and user-friendly interface that empowers customers. DocHub delivers cutting-edge instruments to maximize your document administration and transforms your PDF file editing into a matter of a single click. Hide SNN Field into the Incentive Agreement with DocHub in order to save a ton of time and increase your productivity.
Make PDF file editing an easy and intuitive process that helps save you a lot of precious time. Easily alter your files and deliver them for signing without having looking at third-party options. Focus on pertinent duties and enhance your document administration with DocHub right now.
hello everyone and welcome to the talk shadow attacks hiding and replacing content in signed pdfs my name is christian and this is a joint work with vladislav and simon we are all researchers at war university boho so what are shadow attacks in the next 15 minutes i will show you an attack concept on digitally redesigned pdfs so the basic concept is as follows you have a signed pdf which has some obviously harmless content and assigner will most probably sign this because in this case he wants to get the reward normally this pdf is protected and you cannot change anything in this pdf but there are some specific changes that are allowed due to the pdf specification and we abuse these allowed changes to modify the content to show something complete differently this is a shadow attack so lets have a look at shadow attacks at the goals and the prerequisites so in a shadow attack we have an attacker suppose im the attacker in this case and we have a signer so for example my colleague vlad