Download or read book Digital Signatures written by Jonathan Katz and published by Springer Science & Business Media. This book was released on 2010-05-17 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a beginning graduate student, I recall being frustrated by a general lack of acces sible sources from which I could learn about (theoretical) cryptography. I remember wondering: why aren’t there more books presenting the basics of cryptography at an introductory level? Jumping ahead almost a decade later, as a faculty member my graduate students now ask me: what is the best resource for learning about (various topics in) cryptography? This monograph is intended to serve as an answer to these 1 questions — at least with regard to digital signature schemes. Given the above motivation, this book has been written with a beginninggraduate student in mind: a student who is potentially interested in doing research in the ?eld of cryptography, and who has taken an introductory course on the subject, but is not sure where to turn next. Though intended primarily for that audience, I hope that advanced graduate students and researchers will ?nd the book useful as well. In addition to covering various constructions of digital signature schemes in a uni?ed framework, this text also serves as a compendium of various “folklore” results that are, perhaps, not as well known as they should be. This book could also serve as a textbook for a graduate seminar on advanced cryptography; in such a class, I expect the entire book could be covered at a leisurely pace in one semester with perhaps some time left over for excursions into related topics.

Download or read book Digital Signatures for Dummies Cryptomathic Special Edition Custom written by Steve Marshall and published by For Dummies. This book was released on 2018-03-07 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore business and technical implications Understand established regulatory standards Deploy and manage digital signatures Enable business with digital signatures Digital documents are increasingly commonplace in today's business world, and forward-thinking organizations are deploying digital signatures as a crucial part of their part of their strategy. Businesses are discovering a genuine market demand for digital signatures in support of organizational goals. This book is your guide to the new business environment. It outlines the benefits of embracing digital signature techniques and demystifies the relevant technologies. Advance your organization's digital strategy Provide strong non-repudiation Offer "what you see is what you sign" Ensure enhanced security Provide user convenience and mobility

Download or read book Digital Signatures written by Ragnhild Brøvig and published by MIT Press. This book was released on 2023-10-31 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: How sonically distinctive digital “signatures”—including reverb, glitches, and autotuning—affect the aesthetics of popular music, analyzed in works by Prince, Lady Gaga, and others. Is digital production killing the soul of music? Is Auto-Tune the nadir of creative expression? Digital technology has changed not only how music is produced, distributed, and consumed but also—equally important but not often considered—how music sounds. In this book, Ragnhild Brøvig and Anne Danielsen examine the impact of digitization on the aesthetics of popular music. They investigate sonically distinctive “digital signatures”—musical moments when the use of digital technology is revealed to the listener. The particular signatures of digital mediation they examine include digital reverb and delay, MIDI and sampling, digital silence, the virtual cut-and-paste tool, digital glitches, microrhythmic manipulation, and autotuning—all of which they analyze in specific works by popular artists. Combining technical and historical knowledge of music production with musical analyses, aesthetic interpretations, and theoretical discussions, Brøvig and Danielsen offer unique insights into how digitization has changed the sound of popular music and the listener's experience of it. For example, they show how digital reverb and delay have allowed experimentation with spatiality by analyzing Kate Bush's “Get Out of My House”; they examine the contrast between digital silence and the low-tech noises of tape hiss or vinyl crackle in Portishead's “Stranger”; and they describe the development of Auto-Tune—at first a tool for pitch correction—into an artistic effect, citing work by various hip-hop artists, Bon Iver, and Lady Gaga.

Download or read book Understanding Digital Signatures written by Gail L. Grant and published by . This book was released on 1998 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explains the technology behind digital signatures and key infrastructures (PKI). These are the standards that make it absolutely safe to buy, sell, sign documents and exchange sensitive financial data on the Internet.

Download or read book Electronic Signatures in Law written by Stephen Mason and published by Cambridge University Press. This book was released on 2012-01-26 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using case law from multiple jurisdictions, Stephen Mason examines the nature and legal bearing of electronic signatures.

Download or read book Digital Signatures written by Mohan Atreya and published by McGraw-Hill/Osborne Media. This book was released on 2002 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: A definitive book on digital signatures, written by experts from RSA Security/ The authors discuss the four main goals of security detail: confidentiality, authentication, integrity and non-repudiation.

Download or read book Digital Signatures written by Jonathan Katz and published by Springer. This book was released on 2010-11-01 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a beginning graduate student, I recall being frustrated by a general lack of acces sible sources from which I could learn about (theoretical) cryptography. I remember wondering: why aren’t there more books presenting the basics of cryptography at an introductory level? Jumping ahead almost a decade later, as a faculty member my graduate students now ask me: what is the best resource for learning about (various topics in) cryptography? This monograph is intended to serve as an answer to these 1 questions — at least with regard to digital signature schemes. Given the above motivation, this book has been written with a beginninggraduate student in mind: a student who is potentially interested in doing research in the ?eld of cryptography, and who has taken an introductory course on the subject, but is not sure where to turn next. Though intended primarily for that audience, I hope that advanced graduate students and researchers will ?nd the book useful as well. In addition to covering various constructions of digital signature schemes in a uni?ed framework, this text also serves as a compendium of various “folklore” results that are, perhaps, not as well known as they should be. This book could also serve as a textbook for a graduate seminar on advanced cryptography; in such a class, I expect the entire book could be covered at a leisurely pace in one semester with perhaps some time left over for excursions into related topics.

Download or read book Advances in Cryptology CRYPTO 89 written by Gilles Brassard and published by Springer. This book was released on 1995-01-01 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: CRYPTO is a conference devoted to all aspects of cryptologic research. It is held each year at the University of California at Santa Barbara. Annual meetings on this topic also take place in Europe and are regularly published in this Lecture Notes series under the name of EUROCRYPT. This volume presents the proceedings of the ninth CRYPTO meeting. The papers are organized into sections with the following themes: Why is cryptography harder than it looks?, pseudo-randomness and sequences, cryptanalysis and implementation, signature and authentication, threshold schemes and key management, key distribution and network security, fast computation, odds and ends, zero-knowledge and oblivious transfer, multiparty computation.

Download or read book Advances in Cryptology EUROCRYPT 96 written by Ueli Maurer and published by Springer. This book was released on 2003-05-15 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: The EUROCRYPT ’96 conference was sponsored by the International Asso- ation for Cryptologic Research (IACR)l, in cooperation with the University of Saragossa. It took place at the Palacio de Congresos in Saragossa, Spain, during May 12-16, 1996. This was the fifteenth annual EUROCRYPT conference (this name has been used since the third conference held in 1984), each of which has been held in a different city in Europe. For the second time, proceedings were available at the conference. JosC Pastor Franco, the General Chair, was resp- sible for local organization and registration. His contribution to the snccess of the conference is gratefully acknowledged. The Program Committee considered 126 submitted papers and selected 34 for presentation. Each paper was sent to all members of the Program Committee and was assigned to at least three of them for careful evaluation. There were also two invited talks. James L. Massey, this year’s IACR Distinguished Ltcturer, gave a lecture entitled “The difficulty with difficulty”. Massey is the third to receive this honor, the first two being Gustavus Simmons and Adi Shamir. Shafi Goldwasser gave an invited talk entitled “Multi party secure protocols: past and present”. These proceedings contain revised versions of the 34 contributed talks. While the papers were carefully selected, they have not been refereed like submissions to a refereed journal. The authors bear full responsibility for the contents of their papers. Some authors may write final versions of their papers for publication in a refereed journal.

Download or read book Digital Signature Schemes written by Birgit Pfitzmann and published by Lecture Notes in Computer Science. This book was released on 1996-09-12 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Securing integrity for digital communications in the age of global electronic information exchange and electronic commerce is of vital interest for democratic societies and a central technical challenge for cryptologists.

Download or read book Hardware Architectures for Post Quantum Digital Signature Schemes written by Deepraj Soni and published by Springer Nature. This book was released on 2020-10-27 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores C-based design, implementation, and analysis of post-quantum cryptography (PQC) algorithms for signature generation and verification. The authors investigate NIST round 2 PQC algorithms for signature generation and signature verification from a hardware implementation perspective, especially focusing on C-based design, power-performance-area-security (PPAS) trade-offs and design flows targeting FPGAs and ASICs. Describes a comprehensive set of synthesizable c code base as well as the hardware implementations for the different types of PQC algorithms including lattice-based, code-based, and multivariate-based; Demonstrates the hardware (FPGA and ASIC) and hardware-software optimizations and trade-offs of the NIST round 2 signature-based PQC algorithms; Enables designers to build hardware implementations that are resilient to a variety of side-channels.

Download or read book Electronic Signatures in International Contracts written by Carolina M. Laborde and published by Peter Lang. This book was released on 2010 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally presented as the author's thesis (doctoral)--Freiburg (Breisgau), Universiteat, 2008.

Download or read book RSA CRYPTOSYSTEM KEY GENERATION ENCRYPTION DECRYPTION AND DIGITAL SIGNATURES LEARN BY EXAMPLES WITH PYTHON AND TKINTER written by Vivian Siahaan and published by BALIGE PUBLISHING. This book was released on 2024-08-28 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unlock the secrets of modern cryptography explored in this book, a comprehensive guide that takes you from the fundamentals to advanced applications in encryption, decryption, and digital signatures. Whether you're a beginner or an experienced developer, this book offers hands-on examples, real-world scenarios, and detailed explanations that make complex concepts accessible and engaging. Dive into the world of RSA, as you learn to build secure systems and protect sensitive information with confidence. Perfect for anyone looking to master the art of cryptography, this book is your key to the future of digital security. In chapter one, we implemented RSA key generation within a Tkinter-based GUI application. This example was designed to be user-friendly, allowing users to generate RSA keys with a simple button click. The process involved generating a private key and a corresponding public key, which were then displayed within a text widget for easy copying and saving. This example demonstrated the ease with which RSA keys can be generated programmatically, making cryptography more accessible to users who may not be familiar with command-line interfaces. In chapter two, we embarked on a journey to create a sophisticated RSA encryption and decryption project. We began by constructing a comprehensive Tkinter-based GUI application that allows users to generate RSA key pairs, create and sign transactions, verify signatures, and securely store transactions. The initial focus was on setting up the graphical user interface, with multiple tabs dedicated to different functionalities, ensuring that the application was both user-friendly and feature-rich. The core functionality of the application revolves around RSA key generation, transaction creation, and digital signing. The RSA keys are generated using the cryptography library, and users can generate private and public keys, which are then displayed in the application. This setup forms the foundation for securely signing transactions. The transaction creation process involves entering details like the sender, receiver, amount, and currency, after which the transaction data is signed using the private key, producing a digital signature. This digital signature ensures the authenticity and integrity of the transaction, preventing any tampering or forgery. Once transactions are signed, they can be stored in a secure manner. The application allows users to save these transactions, along with their digital signatures, in a JSON file, providing a permanent and verifiable record. This storage mechanism is crucial for maintaining the integrity of financial transactions or any sensitive data, as it ensures that each transaction is accompanied by a corresponding signature and public key, enabling later verification. The verification process is another key component of the project. The application retrieves stored transactions and verifies the digital signature against the stored public key. This process ensures that the transaction has not been altered since it was signed, confirming its authenticity. The verification feature is critical in real-world applications, where data integrity and authenticity are paramount, such as in financial systems, legal documents, or secure communications. Throughout the chapter, the project was designed with a strong emphasis on real-world applicability, robustness, and security. The example provided not only serves as a practical guide for implementing RSA encryption and decryption with digital signatures but also highlights the importance of secure key management, transaction integrity, and data authenticity in modern cryptographic applications. This project demonstrates the power of RSA in securing sensitive data and transactions in a user-friendly and accessible way, making it an essential tool for developers working with encryption in real-world scenarios. In chapter three, we some projects focused on RSA digital signatures, delving into the creation of synthetic datasets, key generation, data signing, and verification processes. The project’s primary objective is to demonstrate how RSA digital signatures can be applied in a real-world scenario by securely signing and verifying user data. This example uses a synthetic dataset of user information, including user IDs, names, emails, and registration dates, to illustrate the practical implementation of RSA cryptography. The project begins with generating RSA keys using the generate_rsa_keys function. This function creates a pair of keys: a private key used for signing data and a public key for verifying the signature. These keys are essential for the RSA cryptographic process, where the private key ensures that the data remains authentic and unaltered, while the public key is used to verify the authenticity of the signed data. The keys are serialized into PEM format, a widely-used encoding standard that facilitates the secure storage and transmission of cryptographic keys. Next, a synthetic user dataset is generated using the create_synthetic_user_dataset function. This dataset comprises a specified number of user records, each containing a unique user ID, name, email address, and registration date. The purpose of this synthetic data is to simulate a realistic environment where user information needs to be securely signed and verified. By using a synthetic dataset, we ensure that the example remains versatile and adaptable to various scenarios without relying on actual sensitive information. Once the dataset is generated, the sign_data function is employed to sign each user's data using the RSA private key. This process involves creating a digital signature for each record, ensuring that any alteration to the data after signing would invalidate the signature. The digital signature serves as a cryptographic proof of the data’s integrity and authenticity, providing a robust mechanism to detect tampering or unauthorized modifications. The signatures are then stored alongside the user data for subsequent verification. Finally, the project includes a mechanism for storing the signed data and public key in a JSON file, and a function for retrieving and verifying the data. The store_user_data function saves the user data, corresponding signatures, and the public key to a file, allowing for secure storage and later retrieval. The retrieve_and_verify_user_data function reads the stored data, verifies each signature using the public key, and confirms whether the data remains unaltered. This final step completes the demonstration of how RSA digital signatures can be effectively used to secure user data, making it a comprehensive example for those learning about cryptographic techniques in real-world applications.

Download or read book The Digital Signature and Electronic Authemtication Law SEAL of 1998 S 1594 written by United States. Congress. Senate. Committee on Banking, Housing, and Urban Affairs. Subcommittee on Financial Services and Technology and published by . This book was released on 1999 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Developments in Handwriting and Signature Identification in the Digital Age written by Heidi H. Harralson and published by Routledge. This book was released on 2014-09-25 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: The examination of handwriting and signatures has a long and established history as a forensic discipline. With the advancement of technology in the use of digital tablets for signature capture, changes in handwriting examination are necessary. Other changes in handwriting, such as in increase in printed writing styles and the decrease in handwriting training in schools necessitates a re-examination of forensic handwriting identification problems. This text takes a fresh and modern look at handwriting examination as it pertains to forensic, legal, and criminal justice applications.

Download or read book Handbook of Research on Multidisciplinary Approaches to Entrepreneurship Innovation and ICTs written by Carvalho, Luísa Cagica and published by IGI Global. This book was released on 2020-08-21 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Currently, most organizations are dependent on IS/ICT in order to support their business strategies. IS/ICT can promote the implementation of strategies and enhancers of optimization of the various aspects of the business. In market enterprises and social organizations, digital economy and ICTs are important tools that can empower social entrepreneurship initiatives to develop, fund, and implement new and innovative solutions to social, cultural, and environmental problems. The Handbook of Research on Multidisciplinary Approaches to Entrepreneurship, Innovation, and ICTs is an essential reference source that discusses the digitalization techniques of the modern workforce as well as important tools empowering social entrepreneurship initiatives. Featuring research on topics such as agile business analysis, multicultural workforce, and human resource management, this book is ideally designed for business managers, entrepreneurs, IT consultants, researchers, industry professionals, human resource consultants, academicians, and students.

Download or read book ELGAMAL CRYPTOSYSTEM KEY GENERATION ENCRYPTION DECRYPTION AND DIGITAL SIGNATURES LEARN BY EXAMPLES WITH PYTHON AND TKINTER written by Vivian Siahaan and published by BALIGE PUBLISHING. This book was released on 2024-09-01 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an interactive Python application designed to showcase the ElGamal encryption algorithm through a user-friendly Tkinter graphical user interface (GUI). At its heart, the application focuses on the three core aspects of ElGamal cryptography: key generation, encryption, and decryption. Users can generate ElGamal keys of varying sizes by specifying the number of bits, and view these keys in multiple formats, including raw integers, hexadecimal, and Base64 encoding. This flexibility facilitates seamless integration of the keys into different systems and applications, making the tool invaluable for both educational purposes and practical implementations. Additionally, the application allows users to encrypt and decrypt data using the generated ElGamal keys, providing a comprehensive demonstration of how this cryptographic scheme secures information. The GUI simplifies the process of managing and visualizing encrypted and decrypted data, helping users understand the effectiveness of ElGamal encryption in maintaining data confidentiality. By combining these functionalities within an intuitive interface, the project not only illustrates key cryptographic concepts but also offers a hands-on approach to learning and applying ElGamal encryption in real-world scenarios. In chapter one, we developed a project which aims to create an intuitive graphical user interface (GUI) for generating and displaying ElGamal encryption keys using the Tkinter library. Users can specify the number of bits for key generation and view the keys in multiple formats, including raw integers, hexadecimal, and Base64 encoding. This flexibility ensures compatibility with various systems and applications, making it easier for users to integrate and verify cryptographic keys. The application features a tabbed interface that organizes the key generation process. Users can enter the desired key size in one tab and generate the keys with a button click. The keys are then displayed in separate tabs according to their format. This structured approach simplifies the comparison and verification of keys in different representations, enhancing the usability and effectiveness of the key management process. In chapter two, the fifth project integrates ElGamal encryption and decryption techniques into a user-friendly application for securing sensitive data, such as credit card numbers and transaction details. The application generates synthetic datasets to demonstrate these cryptographic methods in action, allowing users to create keys, encrypt data, and decrypt it to verify integrity and confidentiality.Built with Tkinter, the application provides an interactive experience with an intuitive graphical interface. Users can specify key generation parameters, generate synthetic transaction data, and view the original, encrypted, and decrypted data through a series of tabs. This design facilitates easy visualization of encryption and decryption effects, making the application a practical tool for understanding and experimenting with cryptographic operations. In chapter two, the ninth project involves developing a Tkinter-based GUI to demonstrate the ElGamal encryption algorithm using synthetic employee data. The application provides an intuitive platform for generating, encrypting, and decrypting data, while also visualizing results through interactive graphs. Users can manage data with multiple tabs for setup, original, encrypted, and decrypted views, and utilize matplotlib for visualizing data distributions and trends. By integrating data management, encryption, and visualization, the project offers a comprehensive tool for understanding and applying the ElGamal algorithm in a secure and user-friendly manner. In chapter three, the fourth project is designed to process Bitcoin transactions using the ElGamal encryption scheme. It features a comprehensive approach that includes generating, encrypting, decrypting, and analyzing Bitcoin transaction data. The core of the project is the integration of ElGamal encryption to ensure the confidentiality and integrity of transaction data, demonstrated through a user-friendly graphical interface. The application utilizes Tkinter for the interface and Matplotlib for data visualization, allowing users to interact with and analyze synthetic Bitcoin datasets. It supports functionalities like encryption, decryption, and digital signature verification, all while presenting data through intuitive visual graphs. This combination of encryption and visualization provides a robust tool for secure transaction processing and analysis. In chapter three, the sixth project is designed to demonstrate the integration of cryptographic techniques with data visualization and management through a graphical user interface (GUI) built using Tkinter. At its core, the project utilizes the ElGamal cryptosystem, a public-key cryptographic algorithm known for its security in encryption and digital signatures. The GUI enables users to interact with various functionalities of the ElGamal system, including encryption, decryption, and signature verification, all while managing and visualizing a synthetic dataset. The ElGamal class encapsulates the core cryptographic functionalities, providing methods for encrypting and decrypting messages, as well as signing and verifying signatures. It uses secure random number generation and hashing to ensure robust cryptographic operations. To facilitate testing and demonstration, the project includes a synthetic dataset generation function, generate_gov_dataset(), which creates a mock dataset simulating government documents with attributes like document IDs, classification levels, departments, and content. This dataset allows users to apply cryptographic techniques to structured data, providing a realistic scenario for data security operations. The process_dataset() function applies encryption and digital signatures to this synthetic dataset, transforming it into an encrypted format with corresponding signatures for content verification. The GUI, implemented in the ElGamalGUI class, serves as the primary interface, featuring tabs for viewing original and encrypted data, decrypted data, signatures, and distribution graphs. These visualizations help users understand the impact of encryption on data characteristics and evaluate the effectiveness of the cryptographic methods. Overall, this project provides a comprehensive tool for exploring cryptographic techniques in a user-friendly environment, offering valuable insights into practical applications of encryption and digital signatures in data security.