Visible to the public Proxy-Assisted Digital Signing Scheme for Mobile Cloud Computing

TitleProxy-Assisted Digital Signing Scheme for Mobile Cloud Computing
Publication TypeConference Paper
Year of Publication2021
AuthorsFugkeaw, Somchart, Sanchol, Pattavee
Conference Name2021 13th International Conference on Knowledge and Smart Technology (KST)
Keywordscloud computing, Computational modeling, cryptography, digital signature, digital signatures, ECC, Elliptic curve cryptography, Elliptic curves, hashing, Human Behavior, human factors, Metrics, mobile, Mobile handsets, PKI Trust Models, proxy, pubcrawl, resilience, Resiliency, Scalability
AbstractThis paper proposes a lightweight digital signing scheme for supporting document signing on mobile devices connected to cloud computing. We employ elliptic curve (ECC) digital signature algorithm (ECDSA) for key pair generation done at mobile device and introduce outsourced proxy (OSP) to decrypt the encrypted file and compute hash value of the files stored in the cloud system. In our model, a mobile client invokes fixed-sized message digests to be signed with a private key stored in the device and produces the digital signature. Then, the signature is returned to the proxy for embedding it onto the original file. To this end, the trust between proxy and mobile devices is guaranteed by PKI technique. Based on the lightweight property of ECC and the modular design of our OSP, our scheme delivers the practical solution that allows mobile users to create their own digital signatures onto documents in a secure and efficient way. We also present the implementation details including system development and experimental evaluation to demonstrate the efficiency of our proposed system.
Citation Keyfugkeaw_proxy-assisted_2021