3225

3142

كارشناسي ارشد

﴿ مخابرات ﴾

اصفهان : دانشگاه صنعتي اصفهان ، دانشكده برق و كامپيوتر

1385

يازده ،109 ، [II] ص : جدول ، مصور ، نمودار

ص .ع : به فارسي و انگليسي

محمد دخيل عليان

مهدي برنجكوب

مهندسي برق و كامپيوتر

ID3142

به فارسي و انگليسي : قابل رويت در نسخه ديجيتالي

Abstract In public key cryptography due to the random nature of each user s public key itis necessary to make a link between the public key and the identity of owner of thecorresponding private key In a traditional public key infrastructure PKI this link isaccomnplished by a digital certificate Complexity of certificate management process is themain challenge in PKI To overcome to this challenge ID based public key cryptographyhas been proposed by Shamir in 1984 It s main concept is that each user s public key isgenerated from his her identification information such as name email address IP address etc The corresponding private key is generated by a private key generator PKG using asecure master key and transmitted to the user via a secure channel In 1984 Shamirproposed the first ID based signature scheme but the invention of an efficient ID basedencryption scheme realised in 2001 when Boneh and Franklin proposed the first schemeusing bilinear pairings namely Weil and Tate pairing which uses elliptic curves By theirwork research in this area accelerated In this thesis we focus on ID based cryptosystems which use bilinear pairings After an introduction of the basis of elliptic curves and bilinear pairings some ID based cryptoprimitives such as plain signature schemes ring signature and proxy signatureschemes are reviewed and an ID based undeniable digital signature scheme and an ID baseproxy signature scheme and a two party identity based authenticated key agreementprotocol is proposed

محمد دخيل عليان

مهدي برنجكوب