Secure Multiparty Key Generation, Signature and Decryption javacard applet
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Myst - Secure Multiparty Key Generation, Signature and Decryption JavaCard applet and host application

Cryptographic Hardware from Untrusted Components

This project implements novel distributed key generation, signature, and decryption with private key distributed among multiple separate entities.

The research paper and other details are available at

This project is technology demonstrator and requires one or more smartcards with JavaCard platform with remaining players contributing to the protocols simulated in software.

Academic Paper

If you want get into the math and the technical details, you can find our paper here:

If you want to cite this work:

  title={A touch of evil: High-assurance cryptographic hardware from untrusted components},
  author={Mavroudis, Vasilios and Cerulli, Andrea and Svenda, Petr and Cvrcek, Dan and Klinec, Dusan and Danezis, George},
  booktitle={Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security},

This work was supported by the European Commission through the H2020-DS-2014-653497 PANORAMIX project and the European Research Council via the European Union’s Seventh Framework Programme (FP/2007-2013) / ERC Grant Agreement n. 307937, and the Czech Science Foundation under project GA16-08565S.