The orthogonal signature
Yi‐Shiung Yeh, Min-Chih Kao, Wei-Shen Lai · Journal of Discrete Mathematical Sciences and Cryptography · 2008
Recently, e-commerce has become even more popular among enterprises. In every stage verifier must obtain certain information to assure the authorization and integrity of each part of a signed e-document. However, verifier generally knows nothing else except the very necessary information. For example, the merchant will keep banks away from acquiring what customers purchase; on the other hand, the merchants are not allowed to know customers’ finance status detailed in banks. We propose an orthogonal signature that can work within multiple parties more than two parties supported by Dual Signature proposed by SET. We also prove that the orthogonal signature can satisfy those requirements proposed by SET later.