PHYSEC Technology

Physics meets Security: Anchor and connecting physical goods into the digital world

By uni­que­ly com­bi­ning phy­si­cal-lay­er pro­per­ties and app­lied cryp­to­gra­phy, PHYSEC was able to crea­te a novel tech­no­lo­gy for secu­ring the Inter­net of Things (IoT). Com­pa­red to clas­si­cal cryp­to­gra­phy, the tech­no­lo­gy by hand repres­ents a fun­da­ment­al­ly dif­fe­ren­tia­ble para­digm that rea­li­zes secu­ri­ty objec­ti­ves by mea­su­ring the cha­rac­te­ris­tics of the elec­tro­ma­gne­tic wave pro­pa­ga­ti­on and the use of the phy­si­cal con­di­ti­on and envi­ron­ment of a device. Our Start-up PHYSEC uses this tech­no­lo­gy to crea­te novel cryp­to­gra­phic and secu­ri­ty app­li­ca­ti­ons, such as:

  • Ran­dom num­ber generator
  • Remo­te identification/authentication of enti­ties over inse­cu­re networks
  • High­ly secu­re, for­ge­ry-pro­of labels
  • Online com­mu­ni­ca­ti­on pro­to­col, which veri­fies remo­te­ly over arbi­tra­ry distan­ces that a tam­per sen­si­ti­ve sys­tem has not been tam­perd with, and which con­si­der­ab­ly saves upon sto­rage requi­re­ments com­pa­red to exis­ting protocols
  • Post-quan­tum resistant phy­si­cal key exchange
  • Relay sta­ti­on attack prevention
  • Tam­per sen­si­ti­ve systems
  • Remo­te check of hard­ware integrity
  • Pro­ofs of colo­ca­li­ty of two inter­ac­ting systems
  • Vir­tu­al pro­of of rea­li­ty to pro­of the phy­si­cal inte­gri­ty, authen­ti­ci­ty and con­di­ti­on of an object cryptographically

Key features

Disordered electromagnetic systems

Prac­ti­cal­ly every object dif­fers from an iden­ti­cal object due to uni­que and unclon­ab­le pro­duc­tion-depen­dent varia­ti­ons. The advan­ta­ge of such struc­tures (3D arran­ge­ments of meso- and macro­scopic objects) is their hig­her ran­dom infor­ma­ti­on con­tent in com­pa­ri­son with ICs, sin­ce they are three-dimen­sio­nal. By making the­se struc­tures machi­ne-read­a­ble, we can rea­li­ze a varie­ty of new applications.

Radio channel

Vir­tual­ly every envi­ron­ment dif­fers in time and space from other envi­ron­ments and intro­du­ces rand­om­ness to radio trans­cei­vers. Due to its phy­si­cal pro­per­ties, sym­me­try and spa­ti­al diver­si­ty, wire­less chan­nel para­me­ters can be model­led as a bidi­rec­tio­n­al entro­py source not shared with others.

personal consultation

We as PHYSEC ans­wer your questions.
You can talk direct­ly to our executives.

Dr. Chris­ti­an Zen­ger, CEO
Email: christian.zenger@physec.de

Dr. Hei­ko Koep­ke, CFO
Email: heiko.koepke@physec.de