A forward secure signcryption scheme with ciphertext authentication for e-payment systems using conic curve cryptography

Daniel, Renu Mary; Rajsingh, Elijah Blessing; Silas, Salaja

doi:10.1016/j.jksuci.2018.02.004

Cited by 9 publications

(3 citation statements)

References 40 publications

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“…PSNR and MSE have been applied for determining the image nature. An effective signcryption concept is developed in [8] interms of negativity of RSA presumption and discrete logarithm problem on conic bends across a ring Zn. The traditional method ensures a forward mystery where a sender's mystery keys are not covered and under ciphertext verification by an external component without computing decryption.…”

Section: Introductionmentioning

confidence: 99%

Opposition Based Joint Grey Wolf-Whale Optimization Algorithm Based Attribute Based Encryption in Secure Wireless Communication

Raja

Dhanasekaran

Vasudevan

2021

Wireless Pers Commun

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At present times, medical image security becomes a hot research topic in the healthcare sector. This paper presents an efficient lightweight image encryption model based on the Dynamic key generating Attribute based encryption (ABE) method with Opposition based joint Grey Wolf-Whale Optimization Algorithm (OjGW-WOA). The proposed encryption method undergoes certain pre-encryption steps like rotation and random column addition steps. Once the preencryption steps are done, ABE with OjGW-WOA is incorporated, where the optimal key is generated based on entropy value. In addition, the oppositional based learning (OBL) concept is introduced to enhance the convergence rate and searching process of GWO and WOA algorithms.Next, the proposed encryption method is designed with a dynamic key generating model that generates updated keys during every time period. Therefore, during decryption, two-level key verification is done. At the first decryption stage, the key corresponding to that particular time period is required, then the original key is generated from that key and then employed for decrypting the original data. The proposed method is simulated using MATLAB tool and a detailed comparative results analysis is carried out. The performance of the proposed work is validated with the aid of performance metrics like Peak Signal to Noise Ratio (PSNR), number of changing pixel rate (NPCR) and unified averaged changed intensity (UACI). The experimental results stated that the presented model has resulted to a higher PSNR of 62.29dB, NPCR of 99.23%, and UACI of 23.67%.

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Section: Introductionmentioning

confidence: 99%

Opposition Based Joint Grey Wolf-Whale Optimization Algorithm Based Attribute Based Encryption in Secure Wireless Communication

Raja

Dhanasekaran

Vasudevan

2021

Wireless Pers Commun

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“…Let us suppose that 2 people A and B wish to communicate: -KeyGen allows to generate a pair of keys (SDKA, VEKA) and (SDKB, VEKB) where VEKA, VEKB are public and SDKA, SDKB are private -SigEnc (SDKA, VEKB) for sign encrypt the message -VerDec (VEKA, SDKB) to de-sign the message. Multiple implementations can be as per the algorithms in [5,11]. The implementation used is the one in [4].…”

Section: 3mentioning

confidence: 99%

Remote execution of physical tasks by putting into contributionDOSN: Case of Money Transfer

Jean-Pierre,

Noulamo,

Djimeli-Tsajio

2023

int.jour.sci.res.mana

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Distributed Online Social Networks (DOSN) provide some advantages that are not yet fully exploited. It can help reduce cost especially when it comes to manage remote physical agents to fulfill some tasks under delegation of other agents that are weakly coupled. This paper tackles the problem of structuring and organizing such a network and a case study is applied on international money transfer. Recent studies showed that the difference between the amounts of money transfer between less developed and developed countries is not too high. The finance institutions for money transfer are widespread but at international level, only few companies share the market giving the lion share to Western Union and Moneygram. Building a social network of “gentlemen” can transform two international transfers to two or more national transfers. It can then reduce the charges of international transfers, speed up at time the process of money transfer, include more people that are outside the banking system. A prototype is constructed using three key concepts to solve arisen problems. Firstly, the gentlemen approach uses some kind of godfather relationship used in most djangui unions in Cameroon to welcome new members. The graph database Neo4J was chosen to ease the process of identifying the chain of godfathers in case a “bad guy” joins and abuse members of the network. Secondly, the knapsack problem in all is varieties is implemented in case the amount to be transferred from one country to another could not match a one-to-one relationship. Thirdly, a signcryption mechanism is used to solve the cryptographic functionalities that occur during message exchanges on the platform. Due to the fact that such social network has to dealt with trust, reputation, privacy and security, it can be considered as a powerful tool for investigating societal problems such as financing terrorism or deception on the Internet. A game theory can then be applied to detect the conditions making the network not interesting to hackers.

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“…For overcoming this issue, other works exploited parameterization of the Pell hyperbola, obtaining RSA-like schemes having a two times faster decryption procedure than RSA [1,16,17]. Moreover, recently, several works have exploited these schemes in different contexts [2,3,19,21].…”

Section: Introductionmentioning

confidence: 99%

Pell hyperbolas in DLP-based cryptosystems

Alecci¹,

Dutto²,

Murru³

2021

Preprint

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We present a study on the use of Pell hyperbolas in cryptosystems with security based on the discrete logarithm problem. Specifically, after introducing the group's structure over generalized Pell conics (and also giving the explicit isomorphisms with the classical Pell hyperbolas), we provide a parameterization with both an algebraic and a geometrical approach. The particular parameterization that we propose appears to be useful from a cryptographic point of view because the product that arises over the set of parameters is connected to the Rédei rational functions, which can be evaluated in a fast way. Thus, we exploit these constructions for defining three different public key cryptosystems based on the ElGamal scheme. We show that the use of our parameterization allows to obtain schemes more efficient than the classical ones based on finite fields.

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A forward secure signcryption scheme with ciphertext authentication for e-payment systems using conic curve cryptography

Cited by 9 publications

References 40 publications

Opposition Based Joint Grey Wolf-Whale Optimization Algorithm Based Attribute Based Encryption in Secure Wireless Communication

Opposition Based Joint Grey Wolf-Whale Optimization Algorithm Based Attribute Based Encryption in Secure Wireless Communication

Remote execution of physical tasks by putting into contributionDOSN: Case of Money Transfer

Pell hyperbolas in DLP-based cryptosystems

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