Digital Signature Systems Research Articles

Enhancing Electronic Services: Exploring the Optimal Security of Digital Signature Systems

: E-government, e-learning, e-shopping, and e-voting are examples of electronic processes whose efficacy depends on the security, legitimacy, and integrity of the data that is sent back and forth between users. Sensitive material must be extensively vetted by its intended recipient and digitally signed by its original sender in order to meet these benchmarks. Digital signature systems, which are based on intricate cryptographic formulas, are necessary to guarantee the dependability of these electronic services. However, a number of variables, like key and block sizes, computational complexity, security settings, and modifications unique to a given application, affect how well these services function. The goal of the present research was to identify the ideal level of security for electronic mechanisms through a thorough investigation of industry-standard digital signature systems by the authors. They also looked into possible uses in many fields to improve comprehension and application in real-world situations. Key Word: EDMS, Digital Signature, HD5 algorithm, SHA algorithm.

Analysis of code-based digital signature schemes

<span lang="EN-US">Digital signatures are in high demand because they allow authentication and non-repudiation. Existing digital signature systems, such as digital signature algorithm (DSA), elliptic curve digital signature algorithm (ECDSA), and others, are based on number theory problems such as discrete logarithmic problems and integer factorization problems. These recently used digital signatures are not secure with quantum computers. To protect against quantum computer attacks, many researchers propose digital signature schemes based on error-correcting codes such as linear, Goppa, polar, and so on. We studied 16 distinct papers based on various error-correcting codes and analyzed their various features such as signing and verification efficiency, signature size, public key size, and security against multiple attacks.</span>

High Throughput Implementation of the Keccak Hash Function Using the Nios-II Processor

Presently, cryptographic hash functions play a critical role in many applications, such as digital signature systems, security communications, protocols, and network security infrastructures. The new standard cryptographic hash function is Secure Hash Algorithm 3 (SHA-3), which is not vulnerable to attacks. The Keccak algorithm is the winner of the NIST competition for the adoption of the new standard SHA-3 hash algorithm. In this work, we present hardware throughput optimization techniques for the SHA-3 algorithm using the Very High Speed Integrated Circuit Hardware Description Language (VHDL) programming language for all output lengths in the Keccak hash function (224, 256, 384 and 512). Our experiments were performed with the Nios II processor on the FPGA Arria 10 GX (10AX115N2P45E1SG). We applied two architectures, one without custom instruction and one with floating point hardware 2. Finally, we compare the results with other existing similar designs and found that the proposed design with floating point 2 optimizes throughput (Gbps) compared to existing FPGA implementations.

Electronic Signature Development and Verification System by using Biometric Selection

Electronic signatures as a method of identification and safety of electronic records are dictated by the Information Technology Act 2000. Electronic signature is an electronic token that connects the company to the data record. It is intended to validate and authenticate electronic documents. Validation relates to the accreditation method of the content of the paper, and authorization relates to the accreditation method for the transmitter.. Registration method is performed using publicsignal encryption; the signatory utilizes its private key to produce a digital paper record. The purpose of the paper is to guarantee that its actual information remains untouched. Its diverse nature has facilitated the production, storage, distribution and recovery of information by a simple, quicker, precise and comfortable method without contemporary text-based rules and regulations. This has resulted the universe to go internet, leading in turn to greater technological reliance, to boost the use of mobile technology in everyday lives. Progressively company operations in cyber space are held out, including interaction, formal information and commercial activities. The situation from document to digital job has been transformed. The supply for an operating digital structure for signatures for both private as well as government sectors has increased quickly in recent years. This research examined the world normal digital signature systems in order to ensure optimal safety for electronic systems and examined its likely implementations in different fields. The writers have studied them thoroughly. The research is focused on the prospective of information technology and the total data on digital sign.

Дослідження статистичної безпеки методів цифрового підписування на основі рекурентних послідовностей

Проведено дослідження статистичної безпеки методу цифрового підписування на основі рекурентних Vk-послідовностей і здійснено його порівняння з відомими методами Фейге-Фіата-Шаміра та Шнорра. Результати аналізу показали, що в цілому метод на основі Vk -послідовностей має високий рівень статистичної безпеки. Особливо це стосується малих довжин ключів, що рекомендує його для застосування, в першу чергу, в системах цифрового підписування, в яких використання великих ключів не так важливо.

Comparative analysis of binary-decimal numbers summers on cryptography algorithms realizations

Nowadays the maintenance of information systems without modern information security methods and means is impossible. Among them the primary role for security providing is assigned to cryptography. Most of encryption systems and digital signature systems use integer arithmetic modulo a large positive number. Therefore, to ensure the best performance of information security systems need effective methods of implementation of operations and multiply exponentiation for a large number of precision. High performance, simplicity, security and reliability can be achieved by hardware implementations of cryptographic algorithms using binary-decimal numbers summers. In the paper thecomparative analysis of existing binary-decimal numbers summers is carried out. Different variants of its making are identifying and binary-decimal numbers summers’ speed and complexity of implementation are estimating.

Rogue insiders, signature loopholes, and fraud rings

PurposeThe purpose of this paper is to report the findings and lessons learned from a case study that is based on Alibaba's business‐to‐business (B2B) fraud in China. The influence of such incidents and post‐hoc solutions are research worthy in today's booming digital business world.Design/methodology/approachThe paper uses a case study approach and practice‐driven method that rely on user behaviors, corporate policies, and financial data. The taxonomic framework of online fraud and corresponding countermeasures arise from digital forensic reports, policy reviews, data analysis, and a literature review.FindingsThe key findings are indigenous to the Chinese B2B landscape, yet they help international stakeholders understand and address fraudulent issues. The paper finds beside the traditional customer‐based account signature, internal employees must be assigned their own signature systems to track malicious activities. Meanwhile, digital signature systems can be enhanced by reducing the record inter‐arrival time. Policy revisions are proposed to (e.g. offshore companies) lead to the decrease in the number of fraudulent incidents.Originality/valueThe paper extends existing understanding of online fraud by studying a Chinese case. The findings are timely and based on real world experience. Actual practices are discussed and evaluated. A range of fraudulent activities is reviewed in a comprehensive framework. The findings are important due to the public exposure and wide implications of such an incident. Also, this study reveals that fraud protection is an on‐going effort requiring a triangulation of technical artifacts, policy management, and operations management.

Dynamically generate a long-lived private key based on password keystroke features and neural network

It is well-known that the protection of long-lived private keys in cryptographic schemes is one of the most important issues for information security. Any cryptographic scheme that reveals private keys will soon have its security absolutely disintegrate. For example, in digital signature systems, anyone who obtains the victim’s private key, authenticity and non-repudiation can no longer be claimed or proven. Because the private key is a long random bit string and should be stored securely, some special cryptographic hardware such as an IC (Integrated Circuit) card is needed to store and protect the private key. Unfortunately, the security of private keys solely depends on the vulnerable passwords. This study proposes combining a neural network technique and password keystroke features to dynamically generate a long-lived private key rather than statically stored in a storage unit. Compared with other traditional methods, even if the storage unit is lost or the password is revealed, the probability of exposing the private key is reduced.

A secure and robust hash-based scheme for image authentication

To authenticate an image using a hash function is a challenging task since several core issues like tamper detection, security and robustness needs to be addressed. In this paper, we propose a hash-based image authentication scheme that simultaneously attempts to address these core issues. Unlike most of the existing schemes that use secret key in the feature extraction stage, we use secret key to randomly modulate image pixels to create a transformed feature space. The key-dependent transformed feature space is then used to calculate the image hash. To reduce the size of the hash, a 4-bit quantization scheme is also proposed. The experimental results reported in this paper reveals that the proposed scheme offers good robustness against JPEG compression, low-pass and high-pass filtering. Besides being robust, the proposed hashing scheme can detect minute tampering with localization of the tampered area. These results along with the receiver operating curve (ROC) and security analysis presented in this work makes the proposed technique a candidate for practical digital image signature systems where the transmitted or stored image might undergo JPEG compression, low-pass or high-pass filtering.

Digital signature systems based on smart card and fingerprint feature

Two signature systems based on smart cards and fingerprint features are proposed. In one signature system, the cryptographic key is stored in the smart card and is only accessible when the signer's extracted fingerprint features match his stored template. To resist being tampered on public channel, the user's message and the signed message are encrypted by the signer's public key and the user's public key, respectively. In the other signature system, the keys are generated by combining the signer's fingerprint features, check bits, and a rememberable key, and there are no matching process and keys stored on the smart card. Additionally, there is generally more than one public key in this system, that is, there exist some pseudo public keys except a real one.

무선 환경에서 XML 전자서명을 이용한 Java Card 기반 시스템

As wireless network was developed and Capability of Wireless Phone was increased, M-Commerce was activates In Wireless network environment. User Authentication and Security in E-Commerce Environment is very important, so Authentication Technology, such as WPKI and Hermes System, XML Digital Signature in Wire Network is studying. But if authentication systems was implemented heterogeneous, WPKI is difficult to implement the system, it`s not interoperate with authentication system on wire internet, not support XML digital Signature. Hermes system also not interoperate with XML digital signature system. So our paper designed System that can interoperate among digital signature systems and XML document to apply XML digital signature technology on wire network to wireless network, and then implemented system that can XML digital signature to use Java Card.

Securing multimedia services over satellite ATM networks

In recent years there has been increasing interest in interconnecting satellite and ATM networks, because both share common characteristics of the ability to provide bandwidth-on-demand and flexibility of integrating voice, video and data services. There are several new satellite constellation proposals that support multimedia service and transport ATM traffic. For a successful implementation of such systems it is essential to address the security requirements of users, satellite ATM network operators and multimedia service providers. In order to minimize delay and the cost of implementing security systems for satellite ATM networks, the network operator role (in security services) can be limited to the mutual authentication with satellite users during call set-up periods. In this paper a mutual authentication protocol between the user and the satellite network is presented using digital signature and public key systems. Also, another mutual authentication protocol between the user and the service provider is presented to provide end-to-end authentication and negotiation of security options such as selecting a secret key system and the key length. Finally, a detailed hardware implementation of ATM cell payload encryption is presented using the DES/TripleDES secret key system.