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Showing 2 results for alimoradi

Dr Reza Alimoradi,
Volume 4, Issue 2 (3-2016)
Abstract

In public key cryptography, systems based on integer factorization problem are increasing replaced by systems based on discrete logarithm problem (DLP). In fact, Elliptic curve cryptography(ECC) makes the key size much smaller than similar RSA systems do that is why ECC became very popular among cryptography system designers. The designers always need to get to a cryptography system with the smallest key size the highest security. Thus they tend to use hyper elliptic curve in cryptography. In this paper, we will study how to use this type of curves in cryptography.

Also, this study takes a look at these curves’ resistance against algorithms of solving the discrete logarithm problem. Energy consumed for implementation of the scalar multiplication in hyper elliptic curves of the genus g<5 will be analyzed too.

 


Mr Mohammad Hossein Noorallahzadeh, Mr Ahmad Gholami, Mr Reza Alimoradi,
Volume 9, Issue 2 (2-2021)
Abstract

With the advent of cloud computing, data owners tend to submit their data to cloud servers and allow users to access data when needed. However, outsourcing sensitive data will lead to privacy issues. Encrypting data before outsourcing solves privacy issues, but in this case, we will lose the ability to search the data. Searchable encryption (SE) schemes have been proposed to achieve this feature of searching encrypted data without compromising privacy. This method will protect both the user's sensitive information and the ability to search for encrypted data. In this article, we review the various SE designs. In this review, we present the classification of SE designs: symmetric searchable encryption, public key searchable encryption, and search attribute-based encryption schemes, and then a detailed discussion of SE designs in terms of index structure. And provide search functionality. There is also a comparison of SE design analysis in terms of security, performance and security. In addition, we talked about the challenges, leading directions and applications of SE schemes.

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دوفصل نامه علمی  منادی امنیت فضای تولید و تبادل اطلاعات( افتا) Biannual Journal Monadi for Cyberspace Security (AFTA)
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