Reviewing the Role of Secret Sharing Schemes in Electronic Payment Protocols

Since e-Cash and electronic transactions consist of digital data, there are risks that this data can be easily falsified, compromising the security and efficiency of the entire electronic payment protocol. To ensure the security of the protocol, these data must be protected. This is why researchers have focused on several cryptographic studies including secret sharing. Secret sharing techniques are used to divide a secret into multiple shares and to distribute them among a group of participants. Only when a sufficient number of shares are combined together, the original secret can be reconstructed. Moreover, no information about the secret can be deducted from the shares by a smaller group. In this paper, we investigate the different phases of an electronic payment protocol where secret sharing can be used and more particularly distributed key generation and distributed multikey generation protocols. This paper also highlights the importance of using secret sharing in enhancing the security and confidentiality of electronic payment systems, as well as the ability to prevent unauthorized access to sensitive information. The trust is shared among multiple parties.