This book constitutes the thoroughly refereed post-conferenceproceedings of the 9th International Conference on Passwords, PASSWORDS2015, held in Cambridge, UK, in December 2015. The 6 revised full papers presented together with 3 revised short paperswere carefully reviewed and selected from 32 initial submissions. Thepapers are organized in topical sections on human factors, attacks, and cryptography.

Beginning in the fall of 1999, a number of Internet-related businesses and financial institutions in the United States suffered computer intrusions or "hacks" that originated from Russia. The hackers gained control of the victims' computers, copied and stole private data that included credit card information, and threatened to publish or use the stolen credit cards or inflict damage on the compromised computers unless the victims paid money or gave the hackers a job. Some of the companies gave in and paid off the hackers. Some decided not to. The hackers responded by shutting down parts of their networks and using stolen credit card numbers to order thousands of dollars' worth of computer equipment. THE LURE is the true, riveting story of how these Russian hackers, who bragged that the laws in their country offered them no threat, and who mocked the inability of the FBI to catch them, were caught by an FBI lure designed to appeal to their egos and their greed. The story of the sting operation and subsequent trial is told for the first time here by the Department of Justice's attorney for the prosecution. This fascinating story reads like a crime thriller, but also offers a wealth of information that can be used by IT professionals, business managers, lawyers and academics who wish to learn how to protect systems from abuse, and who want to respond appropriately to network incidents. They also provide insight into the hacker's world and explain how their own words and actions were used against them in a court of law - the evidence provided is in the raw, uncensored words of the hackers themselves. This is a multi-layered true crime story, a real-life law and order story that explains how hackers and computer thieves operate, how the FBI takes them down, and how the Department of Justice prosecutes them in the courtroom.

This book constitutes the proceedings of the 37th European Conference on IR Research, ECIR 2015, held in Vienna, Austria, in March/April 2015. The 44 full papers, 41 poster papers and 7 demonstrations presented together with 3 keynotes in this volume were carefully reviewed and selected from 305 submissions. The focus of the papers were on following topics: aggregated search and diversity, classification, cross-lingual and discourse, efficiency, evaluation, event mining and summarisation, information extraction, recommender systems, semantic and graph-based models, sentiment and opinion, social media, specific search tasks, temporal models and features, topic and document models, user behavior and reproducible IR.

The two-volume set LNCS 9562 and LNCS 9563 constitutes the refereedproceedings of the 13th International Conference on Theory ofCryptography, TCC 2016, held in Tel Aviv, Israel, in January 2016. The 45 revised full papers presented were carefully reviewed andselected from 112 submissions. The papers are organized in topicalsections on obfuscation, differential privacy, LWR and LPN, public key encryption, signatures, and VRF, complexity of cryptographic primitives, multiparty computation, zero knowledge and PCP, oblivious RAM, ABE and IBE, and codes and interactive proofs. The volume also includes an invited talk on cryptographic assumptions.

This book constitutes the thoroughly refereed post-conference proceedings of the 18th International Conference on Financial Cryptography and Data Security (FC 2014), held in Christ Church, Barbados, in March 2014. The 19 revised full papers and 12 short papers were carefully selected and reviewed from 165 abstract registrations and 138 full papers submissions. The papers are grouped in the following topical sections: payment systems, case studies, cloud and virtualization, elliptic curve cryptography, privacy-preserving systems, authentication and visual encryption, network security, mobile system security, incentives, game theory and risk, and bitcoin anonymity.

This book constitutes the refereed proceedings of the 17th International Conference on Information Security, ISC 2014, held in Hong Kong, China, in October 2014. The 20 revised full papers presented together with 16 short papers and two invited papers were carefully reviewed and selected from 106 submissions. The papers are organized in topical sections on public-key encryption, authentication, symmetric key cryptography, zero-knowledge proofs and arguments, outsourced and multi-party computations, implementation, information leakage, firewall and forensics, Web security, and android security.

This book constitutes the refereed proceedings of the Cryptographer's Track at the RSA Conference 2016, CT-RSA 2016, held in San Francisco, CA, USA, in February/March 2016. The 26 papers presented in this volume were carefully reviewed and selected from 76 submissions. The focus of the track is on following subjects: secure key exchange schemes, authenticated encryption, searchable symmetric encryption, digital signatures with new functionality, secure multi party computation, how to verify procedures, side-channel attacks on elliptic curve cryptography, hardware attacks and security, structure-preserving signatures, lattice cryptography, cryptanalysis of symmetric key encryption, message authentication code and PRF-security, and security of public key encryption.

This book constitutes the refereed proceedings of the 7th International Workshop on Post-Quantum Cryptography, PQCrypto 2016, held in Fukuoka, Japan, in February 2016. The 16 revised full papers presented were carefully reviewed and selected from 42 submissions. The papers cover all technical aspects of multivariate polynomial cryptography, code-based cryptography, lattice-based cryptography, quantum algorithms, post-quantum protocols, and implementations.

This book constitutes the thoroughly refereed post-conference proceedings of the 7th International Conference on Passwords, PASSWORDS 2014, held in Trondheim, Norway, in December 2014. The 8 revised full papers presented together with 2 revised short papers were carefully reviewed and selected from 30 initial submissions. The papers are organized in topical sections on hash functions, usability, analyses and new techniques.

In the second edition of this very successful book, Tony Sammes and Brian Jenkinson show how the contents of computer systems can be recovered, even when hidden or subverted by criminals. Equally important, they demonstrate how to insure that computer evidence is admissible in court. Updated to meet ACPO 2003 guidelines, Forensic Computing: A Practitioner's Guide offers: methods for recovering evidence information from computer systems; principles of password protection and data encryption; evaluation procedures used in circumventing a system's internal security safeguards, and full search and seizure protocols for experts and police officers.

This book constitutes the refereed proceedings of the 9th International Conference on Provable Security, ProvSec 2015, held in Kanazawa, Japan, in November 2015. The 19 full papers and 7 short papers presented together with 3 invited talks were carefully reviewed and selected from 60 submissions. The papers are grouped in topical sections on fundamental, protocol, authenticated encryption and key exchange, encryption and identification, privacy and cloud, leakage-resilient cryptography and lattice cryptography, signature and broadcast encryption.

Sebastian Pape discusses two different scenarios for authentication. On the one hand, users cannot trust their devices and nevertheless want to be able to do secure authentication. On the other hand, users may not want to be tracked while their service provider does not want them to share their credentials. Many users may not be able to determine whether their device is trustworthy, i.e. it might contain malware. One solution is to use visual cryptography for authentication. The author generalizes this concept to human decipherable encryption schemes and establishes a relationship to CAPTCHAS. He proposes a new security model and presents the first visual encryption scheme which makes use of noise to complicate the adversary's task. To prevent service providers from keeping their users under surveillance, anonymous credentials may be used. However, sometimes it is desirable to prevent the users from sharing their credentials. The author compares existing approaches based on non-transferable anonymous credentials and proposes an approach which combines biometrics and smartcards.

This book constitutes the refereed proceedings of the 14th International Conference on Cryptology and Network Security, CANS 2015, held in Marrakesh, Morocco, in December 2015. The 12 full papers presented together with 6 short papers were carefully reviewed and selected from numerous submissions. The papers cover topics of interest such as internet of things and privacy; password-based authentication; attacks and malicious code; security modeling and verification; secure multi-party computation; and cryptography and VPNs.

Develop a deeper understanding of what's under the hood of blockchain with this technical reference guide on one of the most disruptive modern technologies Key Features Updated with four new chapters on consensus algorithms, Ethereum 2.0, tokenization, and enterprise blockchains Learn about key elements of blockchain theory such as decentralization, cryptography, and consensus protocols Get to grips with Solidity, Web3, cryptocurrencies, smart contract development and solve scalability, security and privacy issues Discover the architecture of different distributed ledger platforms including Ethereum, Bitcoin, Hyperledger Fabric, Hyperledger Sawtooth, Corda and Quorum Book DescriptionBlockchain is the backbone of cryptocurrencies, with applications in finance, government, media, and other industries. With a legacy of providing technologists with executable insights, this new edition of Mastering Blockchain is thoroughly revised and updated to the latest blockchain research with four new chapters on consensus algorithms, Serenity (the update that will introduce Ethereum 2.0), tokenization, and enterprise blockchains. This book covers the basics, including blockchain's technical underpinnings, cryptography and consensus protocols. It also provides you with expert knowledge on decentralization, decentralized application development on Ethereum, Bitcoin, alternative coins, smart contracts, alternative blockchains, and Hyperledger. Further, you will explore blockchain solutions beyond cryptocurrencies such as the Internet of Things with blockchain, enterprise blockchains, tokenization using blockchain, and consider the future scope of this fascinating and disruptive technology. By the end of this book, you will have gained a thorough comprehension of the various facets of blockchain and understand their potential in diverse real-world scenarios. What you will learn Grasp the mechanisms behind Bitcoin, Ethereum, and alternative cryptocurrencies Understand cryptography and its usage in blockchain Understand the theoretical foundations of smart contracts Develop decentralized applications using Solidity, Remix, Truffle, Ganache and Drizzle Identify and examine applications of blockchain beyond cryptocurrencies Understand the architecture and development of Ethereum 2.0 Explore research topics and the future scope of blockchain Who this book is forIf you are a technologist, business executive, a student or an enthusiast who wishes to explore the fascinating world of blockchain technology, smart contracts, decentralized applications and distributed systems then this book is for you. Basic familiarity with a beginner-level command of a programming language would be a plus.

This book constitutes the proceedings of the 19th Nordic Conference on Secure IT Systems, held in Tromso, Norway, in October 2014. The 15 full papers presented in this volume were carefully reviewed and selected from 42 submissions. They are organized in topical sections named: information management and data privacy; cloud, big data and virtualization security; network security and logging; attacks and defenses; and security in healthcare and biometrics. The volume also contains one full-paper invited talk.

This book constitutes the refereed proceedings of the 17th International Workshop on Cryptographic Hardware and Embedded Systems, CHES 2015, held in Saint Malo, France, in September 2015. The 34 full papers included in this volume were carefully reviewed and selected from 128 submissions. They are organized in the following topical sections: processing techniques in side-channel analysis; cryptographic hardware implementations; homomorphic encryption in hardware; side-channel attacks on public key cryptography; cipher design and cryptanalysis; true random number generators and entropy estimations; side-channel analysis and fault injection attacks; higher-order side-channel attacks; physically unclonable functions and hardware trojans; side-channel attacks in practice; and lattice-based implementations.

This book constitutes the refereed proceedings of the 42nd Annual International Cryptology Conference, CRYPTO 2022, which was held in Santa Barbara, CA, USA, in August 2022. The total of 100 papers included in the 4-volume proceedings LNCS 13507, 13508, 13509, 13510, was reviewed and selected from 455 submissions. The papers were organized in the following topical sections: Cryptanalysis; randomness; quantum cryptography; advanced encryption systems; secure messaging; lattice-based zero knowledge; lattice-based signatures; blockchain; coding theory; public key cryptography; signatures, idealized models; lower bounds; secure hash functions; post-quantum cryptography; symmetric cryptanalysis; secret sharing and secure multiparty computation; unique topics; symmetric key theory; zero knowledge; and threshold signatures.

The two-volume set LNCS 9014 and LNCS 9015 constitutes the refereed proceedings of the 12th International Conference on Theory of Cryptography, TCC 2015, held in Warsaw, Poland in March 2015. The 52 revised full papers presented were carefully reviewed and selected from 137 submissions. The papers are organized in topical sections on foundations, symmetric key, multiparty computation, concurrent and resettable security, non-malleable codes and tampering, privacy amplification, encryption an key exchange, pseudorandom functions and applications, proofs and verifiable computation, differential privacy, functional encryption, obfuscation.

This book constitutes revised selected papers from the First International Conference on Cryptography and Information Security in the Balkans, Balkan Crypt Sec 2014, held in Istanbul, Turkey, in October 2014. The 15 papers presented in this volume were carefully reviewed and selected from 36 submissions. They were organized in topical sections named: symmetric cryptography, cryptographic hardware, cryptographic protocols and public key cryptography. The book also contains one invited talk in full paper length.

The First A4Cloud Summer School has been one of the first events in the area of accountability and security in the cloud. It was organized by the EU-funded A4Cloud project, in collaboration with the European projects CIRRUS, Coco Cloud, CUMULUS, and SPECS. Cloud computing is a key technology that is being adopted progressively by companies and users across different application domains and industries. Yet, there are emerging issues such as security, privacy, and data protection. The 13 contributions included in this volume cover the state of the art and provide research insights into the following topics: accountability in the cloud; privacy and transparency in the cloud; empirical approaches for the cloud; socio-legal aspects of the cloud; cloud standards; and the accountability glossary of terms and definitions.

This book constitutes the refereed post-conference proceedings of the Third International Workshop on Lightweight Cryptography for Security and Privacy, LightSec 2014, held in Istanbul, Turkey, in September 2014. The 10 full papers presented were carefully reviewed and selected from 24 submissions. The papers are organized in the following topical sections: efficient implementations and designs; attacks; and protocols.

This book constitutes the thoroughly refereed post-conference proceedings of the 13th International Conference on Smart Card Research and Advanced Applications, CARDIS 2014, held in Paris, France, in November 2014. The 15 revised full papers presented in this book were carefully reviewed and selected from 56 submissions. The papers are organized in topical sections on Java cards; software countermeasures; side-channel analysis; embedded implementations; public-key cryptography and leakage and fault attacks.

The two-volume set LNCS 9014 and LNCS 9015 constitutes the refereed proceedings of the 12th International Conference on Theory of Cryptography, TCC 2015, held in Warsaw, Poland in March 2015. The 52 revised full papers presented were carefully reviewed and selected from 137 submissions. The papers are organized in topical sections on foundations, symmetric key, multiparty computation, concurrent and resettable security, non-malleable codes and tampering, privacy amplification, encryption an key exchange, pseudorandom functions and applications, proofs and verifiable computation, differential privacy, functional encryption, obfuscation.

This book constitutes the refereed proceedings of the 5th International Workshop on the Arithmetic of Finite Field, WAIFI 2014, held in Gebze, Turkey, in September 2014. The 9 revised full papers and 43 invited talks presented were carefully reviewed and selected from 27 submissions. This workshop is a forum of mathematicians, computer scientists, engineers and physicists performing research on finite field arithmetic, interested in communicating the advances in the theory, applications, and implementations of finite fields. The workshop will help to bridge the gap between the mathematical theory of finite fields and their hardware/software implementations and technical applications.

This book constitutes the refereed proceedings of the 18th International Conference on Practice and Theory in Public-Key Cryptography, PKC 2015, held in Gaithersburg, MD, USA, in March/April 2015. The 36 papers presented in this volume were carefully reviewed and selected from 118 submissions. They are organized in topical sections named: public-key encryption; e-cash; cryptanalysis; digital signatures; password-based authentication; pairint-based cryptography; efficient constructions; cryptography with imperfect keys; interactive proofs; lattice-based cryptography; and identity-based, predicate, and functional encryption.