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Computer Security Resource Center

Computer Security Resource Center

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    Presentations 2020
Presentation

Attacks to deployed threshold signatures

November 6, 2020

Presenters

Jean-Phillippe Aumasson - ZenGo
 Omer Shlomovitz - Taurus

Description

Abstract: Threshold wallets leverage threshold signature schemes (TSS) to distribute signing rights across multiple parties when issuing blockchain transactions. These provide greater assurance against insider fraud, and are sometimes seen as an alternative to methods using a trusted execution environment to issue the signature. This talk describes the authors’ experience with building and analyzing TSS technology, notably the finding of attacks on TSS implementations used by leading organizations such as major exchanges.

Presented at

NIST Workshop on Multi-Party Threshold Schemes (MPTS) 2020. https://csrc.nist.rip/events/2020/mpts2020

Event Details

Location

    
                        

                


                

        
 Related Topics


            

                Security and Privacy:
                    cryptography            

    


        

        






    


            Created May 04, 2021, Updated June 07, 2021