Title page for etd-0907107-170832


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URN etd-0907107-170832
Author Hsing Hsu
Author's Email Address No Public.
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Department Computer Science and Engineering
Year 2006
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Efficient Secure Electronic Mail Protocols with Forward Secrecy
Date of Defense 2007-07-26
Page Count 57
Keyword
  • Forward Secrecy
  • Signcryption
  • Authentication
  • Electronic Mail Protocols
  • Key Agreement
  • Public Keys
  • Abstract In 1976, Diffie and Hellman proposed the concept of public key cryptosystem (PKC). The application and research of public key cryptography are arisen in the modern cryptography. In 2005, Sun, Hsieh, and Hwang (S.H.H.) proposed an electronic mail protocol based on classic public key cryptography. The technique of the Certificate of Encrypted Message Being a Signature (CEMBS) that Bao proposed in 1998 is applied on session key sharing of their e-mail system. In the same year, Dent pointed out that the first one of S.H.H.’s e-mail protocols cannot suffice the property of forward secrecy. Thus, Kim, Koo, and Lee (K.K.L.) proposed two e-mail protocols based on signcryption concept which is proposed by Zheng in 1997 to overcome the flaw of S.H.H.’s e-mail protocol in 2006. Lin, Lin, and Wang (L.L.W.) pointed out that the second one of S.H.H.’s protocols cannot achieve forward secrecy and then they improved the protocol. In 2007, Yoon and Yoo claimed that the second one of K.K.L.’s protocols is still vulnerable to two possible forgery attacks. In this thesis, we will make deep discussions about secure e-mail protocols based on PKC with providing the property of forward secrecy and then build a novel e-mail protocol to withstand the above attacks. Our proposed e-mail protocol can achieve the properties of authentication, confidentiality, integrity, non-repudiation and forward secrecy.
    Advisory Committee
  • Chun-Hung Lin - chair
  • Cha-Hwa Lin - co-chair
  • Chun-I Fan - advisor
  • Files
  • etd-0907107-170832.pdf
  • indicate accessible in a year
    Date of Submission 2007-09-07

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