List of Articles امضای الکترونیک Open Access Article Abstract Page Full-Text 1 - The legal study of public key infrastructure Dr. Parviz Savaraei Dr. Bagher Taherianfar Open Access Article Abstract Page Full-Text 2 - A Comparative Study of Digital Signatures in Smart Contracts Under the Laws of Iran and the United States of America Sahar Karimi parisa sinambari