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Unclonable Polymers and Their Cryptographic Applications

eprint.iacr.org · 268 words · saved by 1 readers

We propose a mechanism for generating and manipulating protein polymers to obtain a new type of consumable storage that exhibits intriguing cryptographic "self-destruct" properties, assuming the hardness of certain polymer-sequencing problems. To demonstrate the cryptographic potential of this technology, we first develop a formalism that captures (in a minimalistic way) the functionality and security properties provided by the technology. Next, using this technology, we construct and prove security of two cryptographic applications that are currently obtainable only via trusted hardware that implements logical circuitry (either classical or quantum). The first application is a password-controlled secure vault where the stored data is irrecoverably erased once a threshold of unsuccessful access attempts is reached. The second is (a somewhat relaxed version of) one-time programs, namely a device that allows evaluating a secret function only a limited number of times before self-destruct

Paper 2022/658 Unclonable Polymers and Their Cryptographic Applications Ran Canetti, Boston University Yaniv Erlich, Eleven Therapeutics and IDC Herzliya Jonathan Gershoni, Tel Aviv University Tal Malkin, Columbia University Itsik Pe’er, Columbia University Anna Roitburd-Berman, Tel Aviv University Eran Tromer, Columbia University, Tel Aviv University Abstract We propose a mechanism for generating and manipulating protein polymers to obtain a new type of consumable storage that exhibits intriguing cryptographic "self-destruct" properties, assuming the hardness of certain…

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