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Sebastian E. Schmittner

Publications and source records attributed to Sebastian E. Schmittner.

2 recordsLinked to original sources

A solution approach for the anonymous sharing of sensitive supply chain traceability data

Supply chain traceability systems have become central in many industries, however, traceability data is often commercially sensitive, and firms seek to keep it confidential to protect their competitive advantage. This is at odds with calls for greater transparency in supply chains for sustainability and efficiency. In this research paper, we develop a solution to this conflict. We demonstrate that sanitised data can be used to confirm the authenticity of products and anonymously verify the rights of an actor to access detailed traceability data. Following a design science methodology, we develop a prototype protocol and verify its performance with traceability data based on the global standard EPCIS.

cs.CR

A SAT-based Public Key Cryptography Scheme

A homomorphic public key crypto-scheme based on the Boolean Satisfiability Problem is proposed. The public key is a SAT formula satisfied by the private key. Probabilistic encryption generates functions implied to be false by the public key XOR the message bits. A zero-knowledge proof is used to provide signatures.

cs.CR