Main Article Content
Abstract
This paper is intended to provide a cloud-based digital signature platform with enhanced security solution in the field of cryptography. We proposed a new schema of digital signature where signature generation and verifications are done on the cloud environment. Secure Long-Term Archival System (SLTAS) that protects, in a verifiable way, the validity of today's digital signatures in a distant future. Moreover, our protocol provides a proof, when a signature was created, without the possibility of backdating. We include a description of our scheme and an evaluation of its performance in terms of computing time and storage space. Finally, we discuss how to extend our system to achieve additional security properties. This paper does not focus on the long-term availability of archived information. nor on format migration problems.