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pki
(328 results)-
White Papers
cv Act PKIntegrated - The Ideal PKI Solution for Novell eDirectory Environments
Aug 2009
The term Public Key Infrastructure (PKI) comprises the entirety of the hardware, software and the organizational stipulations required for the appropriate use of encryption and related...
Provided by cv cryptovision
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Whitepapers
Legal and Compliance FAQs
May 2012
Electronic Signatures, also known as e-signatures, are a simple, easy and legal way to get documents and agreements signed. Download this whitepaper and learn about the difference between...
Provided by Adobe Systems
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Whitepapers
Certificate Assignment Strategies for a PKI-Based Security Architecture in a Vehicular Network
Oct 2008
This paper proposes novel certificate assignment strategies for use in vehicular networks in order to significantly reduce the complexity of managing the Public Key Infrastructure (PKI) framework....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Multi-Receiver Identity-Based Encryption in Multiple PKG Environment
Oct 2008
In this paper, the authors discuss identity-based encryption in multiple PKG environment. They formulate the security notions for multi-receiver multi-PKG Identity-Based Encryption (IBE) and...
Provided by Institute of Electrical & Electronic Engineers
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White Papers
Key Attestation from Trusted Execution Environments
Jul 2010
Credential platforms implemented on top of Trusted Execution Environments (TrEEs) allow users to store and use their credentials, e.g., cryptographic keys or user passwords, securely. One...
Provided by Ruhr-Universitat Bochum
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White Papers
When Private Keys Are Public: Results From the 2008 Debian OpenSSL Vulnerability
Nov 2009
The authors report on the aftermath of the discovery of a severe vulnerability in the Debian Linux version of OpenSSL. Systems affected by the bug generated predictable random numbers, most...
Provided by Association for Computing Machinery
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White Papers
Fast Cryptographic Primitives and Circular-Secure Encryption Based on Hard Learning Problems
Jun 2009
The well-studied task of learning a linear function with errors is a seemingly hard problem and the basis for several cryptographic schemes. Here the authors demonstrate additional applications...
Provided by Princeton University
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White Papers
Optimal Communication Complexity of Generic Multicast Key Distribution
Jan 2011
The authors prove a tight lower bound for generic protocols for secure multicast key distribution where the messages sent by the group manager are obtained by arbitrarily nested application of a...
Provided by University of California
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White Papers
Soundness of Formal Encryption in the Presence of Active Adversaries
Jan 2011
Cryptographic protocols are a fundamental tool in the design of secure distributed computing systems, but they are also extremely hard to design and validate. The difficulty of designing valid...
Provided by University of California
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White Papers
Bonsai Trees, or How to Delegate a Lattice Basis
Mar 2010
The authors introduce a new lattice-based cryptographic structure called a bonsai tree, and use it to resolve some important open problems in the area. Applications of bonsai trees include: An...
Provided by University of California, San Diego
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White Papers
The Power of Proofs-of-Possession: Securing Multiparty Signatures Against Rogue-Key Attacks
Jul 2007
Multiparty signature protocols need protection against rogue-key attacks, made possible whenever an adversary can choose its public key(s) arbitrarily. For many schemes, provable security has only...
Provided by University of California, San Diego
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White Papers
Generalized Compact Knapsacks, Cyclic Lattices, and Efficient One-Way Functions
Jan 2008
The authors investigate the average-case complexity of a generalization of the compact knapsack problem to arbitrary rings: given m (random) ring elements a1,. .., am 2 R and a (Random) target...
Provided by University of California, San Diego
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White Papers
Encryption Schemes Secure Under Selective Opening Attack
Sep 2008
The existence of encryption schemes secure under Selective Opening Attack (SOA) has remained open despite considerable interest and attention. The authors provide the first public key encryption...
Provided by University of California, San Diego
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White Papers
Pseudorandom Functions and Permutations Provably Secure Against Related-Key Attacks
Jul 2010
This paper fills an important foundational gap with the first proofs, under standard assumptions and in the standard model, of the existence of Pseudorandom Functions (PRFs) and Pseudorandom...
Provided by University of California, San Diego
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White Papers
Cryptographic Agility and Its Relation to Circular Encryption
Mar 2010
The authors initiate a provable-security treatment of cryptographic agility. A primitive (for example PRFs, authenticated encryption schemes or digital signatures) is agile when multiple,...
Provided by University of California, San Diego
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White Papers
The Twin Diffie-Hellman Problem and Applications
Feb 2008
The authors propose a new computational problem called the twin Diffie-Hellman problem. This problem is closely related to the usual (Computational) Diffie-Hellman problem and can be used in many...
Provided by Georgia Institute of Technology
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White Papers
Cryptographic Functions From Worst-Case Complexity Assumptions
Aug 2007
Lattice problems have been suggested as a potential source of computational hardness to be used in the construction of cryptographic functions that are provably hard to break. A remarkable feature...
Provided by University of California, San Diego
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White Papers
Salvaging Merkle-Damg°ard for Practical Applications
Jan 2009
Many cryptographic applications of hash functions are analyzed in the random oracle model. Unfortunately, most concrete hash functions, including the SHA family, use the iterative (Strengthened)...
Provided by University of California, San Diego
-
White Papers
SWIFFT: A Modest Proposal for FFT Hashing
Feb 2008
The authors propose SWIFFT, a collection of compression functions that are highly parallelizable and admit very efficient implementations on modern microprocessors. The main technique under-lying...
Provided by SRI International
-
White Papers
Analysis of SPKI/SDSI Certificates Using Model Checking
Jan 2011
SPKI/SDSI is a framework for expressing naming and authorization issues that arise in a distributed-computing environment. In this paper, the authors establish a connection between SPKI/SDSI and a...
Provided by University of Wisconsin
-
White Papers
TinyECC: A Configurable Library for Elliptic Curve Cryptography in Wireless Sensor Networks
May 2008
Public Key Cryptography (PKC) has been the enabling technology underlying many security services and protocols in traditional networks such as the Internet. In the context of wireless sensor...
Provided by NC State University
-
White Papers
Public Key Encryption With Keyword Search
Jan 2011
The authors study the problem of searching on data that is encrypted using a public key system. Consider user Bob who sends email to user Alice encrypted under Alice's public key. An email gateway...
Provided by Stanford University
-
White Papers
The Requirements for Building an e-Commerce Infrastructure
Nov 2009
This paper will present all requirements to build a reliable e-commerce infrastructure in Jordan. Ecommerce is one of the main desired outcomes from a state internet readiness. Despite the fact...
Provided by Academy Publisher
-
White Papers
Implementing an SPKI Certificate Repository Within the DNS
Jan 2011
Authorization certificates can be used to grant access rights from the owner of a resource to other entities and then to further share these rights with others using delegation. However, when...
Provided by Helsinki University of Technology
-
White Papers
A Revocation, Validation and Authentication Protocol for SPKI Based Delegation Systems
Jan 2011
In distributed systems, the access control mechanism in is often modeled after stand-alone solutions, such as A CLs. Such arrangement, however, is not ideal as the system may be mirrored around...
Provided by Helsinki University of Technology
-
White Papers
Use of Symmetric and Asymmetric Cryptography in False Report Filtering in Sensor Networks
Oct 2007
Sensor networks are easily deployable networks of inexpensive sensor nodes. The sensors detect events of interest, for example forest fires, battlefield events, and so on. The sensor nodes form an...
Provided by Helsinki University of Technology
-
White Papers
Attacks on Message Stream Encryption
Oct 2008
Message Stream Encryption (MSE) provides obfuscation, data confidentiality, and limited authentication to BitTorrent clients. Although obfuscation of header and payload data was the main design...
Provided by Helsinki University of Technology
-
Whitepapers
A Simulation Based Framework to Characterize Pseudonymous Authentication in VANET
May 2011
Privacy & security are two essential security attributes of secure Vehicle-To-Vehicle (V2V) communications. To achieve the required security attributes, Public Key Infrastructure (PKI) and later...
Provided by International forum of researchers Students and Academician
-
White Papers
Self-Generated-Certificate Based Cryptographic Protocol With Lite Certificate Management
May 2009
In spite of the vital role played by Digital Certificates in Public Key Cryptographic systems, the overhead involved in maintaining those made them prohibitory. Certificateless Public Key...
Provided by Academy Publisher
-
White Papers
A New Authentication Scheme for Session Initiation Protocol
Sep 2009
In 2008, Tsai proposed an efficient nonce-based authentication scheme for Session Initiation Protocol (SIP). The current paper, however, demonstrates that Tsai's authentication scheme is still...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
AEMA: An Aggregated Emergency Message Authentication Scheme for Enhancing the Security of Vehicular Ad Hoc Networks
Sep 2008
To achieve efficient authentication on emergency events in vehicular ad hoc networks, the authors introduce a novel Aggregated Emergency Message Authentication (AEMA) scheme to validate an...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Lightweight Asymmetric Privacy-Preserving Authentication Protocols Secure Against Active Attack
Oct 2009
As pervasive computing technologies develop fast, the privacy protection becomes a crucial issue and needs to be coped with very carefully. Typically, it is difficult to efficiently identify and...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
E-Commerce Security Using PKI Approach
Aug 2010
As a most popular business model, ECommerce provides a more convenient business mode and lower transaction cost. Currently Ecommerce security is still an obstacle in development of e-commerce. It...
Provided by Engg Journals Publications
-
White Papers
Secure Public-Key Based Effective and Efficient Sensor Networks
Mar 2010
Sensor networks presented new opportunities for observing and interacting with the real physical world. They are composed of a large number of sensor nodes and each sensor node has capabilities of...
Provided by University of Canberra
-
White Papers
PKI Layer Cake: New Collision Attacks Against the Global X.509 Infrastructure
Mar 2010
Research unveiled in December of 2008 showed how MD5's long-known flaws could be actively exploited to attack the real-world Certification Authority infrastructure. This paper demonstrates two new...
Provided by Katholieke Universiteit Leuven
-
White Papers
Tradeoffs Between Jamming Resilience and Communication Efficiency in Key Establishment
Jan 2011
The authors address the problem of allowing authorized users, who do not preshare a common key, to effectively exchange key establishment messages over an insecure channel in the presence of...
Provided by University of Washington
-
White Papers
A Canonical Seed Assignment Model for Key Predistribution in Wireless Sensor Networks
Oct 2007
A promising solution for trust establishment in wireless sensor networks is the assignment of cryptographic seeds (Keys, secrets, etc.) to sensor nodes prior to network deployment, known as key...
Provided by Association for Computing Machinery
-
White Papers
Analysis of Public-Key Cryptography for Wireless Sensor Networks Security
Jun 2009
With the widespread growth of applications of Wireless Sensor Networks (WSNs), the need for reliable security mechanisms these networks has increased manifold. Many security solutions have been...
Provided by Sharif University of Technology
-
White Papers
A New Knapsack Public-Key Cryptosystem Based on Permutation Combination Algorithm
Aug 2010
A new secure knapsack cryptosystem based on the Merkle-Hellman public key cryptosystem will be proposed in this paper. Although it is common sense that when the density is low, the knapsack...
Provided by Asia University
-
White Papers
Alpaca: Extensible Authorization for Distributed Services
Nov 2007
Traditional Public Key Infrastructures (PKI) has not lived up to their promise because there are too many ways to define PKIs, too many cryptographic primitives to build them with, and too many...
Provided by Association for Computing Machinery
-
White Papers
Building Key-Private Public-Key Encryption Schemes
Apr 2009
In the setting of identity-based encryption with multiple trusted authorities, TA anonymity formally models the inability of an adversary to distinguish two ciphertexts corresponding to the same...
Provided by University of London
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White Papers
Identity Crisis: Designing Namespaces for ID-PKC and MANETs
Jul 2007
In this paper, the authors explore the "Interface" between IDentity-based Public Key Cryptography (ID-PKC) and Mobile Ad-hoc NETworks (MANETs). In particular they examine the problem of naming and...
Provided by University of London
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White Papers
Public Key Technology Introduction Infrastructure
Jun 2010
Public key technology and digital certificates are emerging as the preferred enablers of strong security for a wide range of e-business messaging applications. In this paper, an overview is...
Provided by International Journal of Computer Applications
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White Papers
An Identity Based Aggregate Signature From Pairings
Apr 2011
In 1984, Shamir brought forward the concept of Identity-based (from now on, ID-based) Cryptography as an alternative to traditional Public Key cryptography, based on Infrastructures(PKI). In...
Provided by Academy Publisher
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White Papers
Hardware-Based Public-Key Cryptography With Public Physically Unclonable Functions
Sep 2009
A Physically Unclonable Function (PUF) is a multiple-input, multipleoutput, large entropy physical system that is unreproducible due to its structural complexity. A Public Physically Unclonable...
Provided by Springer Science+Business Media
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White Papers
The X.509 Certificate Quality
Jan 2009
The growing number of PKIs (Public Key Infrastructure) and the increasing number of situations where partners of a transaction may carry certificates signed by different CAs (Certification...
Provided by Institute of Electrical and Electronics Engineers
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e-Books
eBook "Real-World Virtualization for Your Business"
Feb 2012
Small and midsize firms virtualize IT infrastructure to meet real-world challenges: simplifying operations to focus on business issues, speeding up application rollouts to get more done,...
Provided by VMware
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White Papers
GAnGS: Gather, Authenticate 'n Group Securely
Sep 2008
Establishing secure communication among a group of physically collocated people is a challenge. This problem can be reduced to establishing authentic public keys among all the participants - these...
Provided by Association for Computing Machinery
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White Papers
Threshold Certificate-Based Encryption
May 2009
Certificate-Based Encryption (CBE) is a new asymmetric encryption paradigm which combines traditional Public-Key Encryption (PKE) and Identity Based Encryption (IBE) while preserving some of their...
Provided by Academy Publisher
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Whitepapers
Advanced Threats: The New World Order. RSA APT Summit Findings
Oct 2011
Security threats are not just problems for the organizations they're directed against; they're now a problem for whole corporate ecosystems. Shoring up the supply chain and gaining...
Provided by EMC
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White Papers
A PKI-Based Track and Trace Network for Cross-Boundary Container Security
Sep 2011
Challenges in container management, such as theft of products, cross-border smuggling, long checking time in processes of customs clearance and unable to track locations of products in real time,...
Provided by International Journal of Computer Science Issues
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White Papers
Self-Signed Executables: Restricting Replacement of Program Binaries by Malware
Aug 2007
The authors propose using digital signatures to protect binaries already on the system from modifications by malware. While applicable to any file which is not intended to be modified by an end...
Provided by Carleton University
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Podcasts
Podcast: Athena health, Inc. Protects Critical Databases with Oracle Active Data Guard
Oct 2011
Paul Beltrani, Director of Systems with athenahealth, Inc, talks about their cloud-based solution for managing patient communication, electronic health records and more. Paul also discusses the...
Provided by Oracle
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White Papers
Pollution Attack Defense for Coding Based Sensor Storage
Mar 2010
The authors present a novel information theoretic approach to make network coding based storage secure against pollution attacks in sensor networks. The approach is based on a new decoding...
Provided by Budapest University of Technology and Economics
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White Papers
McCLS: Certificateless Signature Scheme for Emergency Mobile Wireless Cyber-Physical Systems
Oct 2008
Mobile ad hoc network is a self-configurable and self-organizing wireless network of mobile devices without fixed infrastructure support, which makes it a good candidate as underlying...
Provided by CCC
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White Papers
Toward a Peer-to-Peer PKI for Mobile Ad-Hoc Networks
Apr 2011
Deploying PKIs in ad hoc networks opens up various issues related to the intrinsic characteristics of these networks. In the literature, many proposals for PKI over ad hoc networks are based on...
Provided by University of Tunis
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Case Studies
City of Winter Park Case Study
Mar 2010
The City of Winter Park employs 550 people serving more than 28,000 central Florida residents. CJIS mandates advanced authentication, such as biometrics, PKI, smart cards or token-based devices,...
Provided by DigitalPersona
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White Papers
Matrix Powers Algorithm for Trust Evaluation in PKI Architectures
Jul 2011
Public-Key Infrastructures (PKI) is considered as the safeguard of the security of communications on large scales networks like Internet. Different trust models have been proposed to interconnect...
Provided by Université de Grenoble
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White Papers
Certificateless Authenticated Group Key Agreement Protocol for Dynamic Groups
Aug 2007
A Group Key Agreement protocol is a process to establish a cryptographic key for a group of participants over an open network. In this paper, the authors propose a group key agreement (CAGKA)...
Provided by Information and Communications University
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White Papers
TACKing Together Efficient Authentication, Revocation, and Privacy in VANETs
May 2009
Vehicular Ad Hoc NETworks (VANETs) require a mechanism to help authenticate messages, identify valid vehicles, and remove malevolent vehicles. A Public Key Infrastructure (PKI) can provide this...
Provided by Carnegie Mellon University
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White Papers
OverSoc: Social Profile Based Overlays
Apr 2010
Online social networking has quickly become one of the most common Internet activities. As social networks evolve, they encourage users to share more information, requiring the users, in turn, to...
Provided by University of Florida
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White Papers
Breaking and Making Quantum Money: Toward a New Quantum Cryptographic Protocol
Dec 2009
Public-key quantum money is a cryptographic protocol in which a bank can create quantum states which anyone can verify, but no one except possibly the bank can clone or forge. There are no secure...
Provided by Massachusetts Institute of Technology
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White Papers
Solovay-Strassen Test in a RSA Pubic Key Cryptosystem
Feb 2010
In this paper, RSA type of Public key cryptosystem is designed based on Solovay-Stressen test known as S-RSA Cryptosystem. The efficiency of the S-RSA cryptosystem is nearly twice of the...
Provided by VIT UNIVERSITY
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White Papers
Analysis of a Redactable Signature Scheme on Data With Dependencies
May 2009
Storage of personal information by service providers risk privacy loss from data breaches. The prior work on minimal disclosure credentials presented a mechanism to limit the amount of personal...
Provided by Georgia Institute of Technology
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White Papers
An Algorithm of Constructing Certificates Chain Based on the FriendshipPoint Group for P2P Network
Jul 2009
The authentication and authorization based on CA is not suitable for P2P network because of its centralized control. DHT is efficient to search a required certificate in P2P network, but it is not...
Provided by Academy Publisher
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White Papers
Generating Certification Authority Authenticated Public Keys in Ad Hoc Networks
Jul 2010
In an ad hoc network, nodes may face the need to generate new public keys. To be verifiably authentic, these newly generated public keys need to be certified. However, because of the absence of a...
Provided by John Wiley & Sons
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White Papers
Public Key Cryptosystem Based on Number Theoretic Transforms
Jan 2011
In this paper a Public Key Cryptosystem is proposed using the Number Theoretic Transforms (NTT) over a ring of integer modulo a composite number. The key agreement is similar to ElGamal public key...
Provided by PSG College of Technology
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White Papers
A Novel Plausible Deniability Scheme in Secure Steganography
Jun 2009
The goal of steganography is to avoid drawing suspicion to the transmission of a hidden message. If suspicion is raised, steganography may fail. The success of steganography depends on the secrecy...
Provided by Iran Telecommunication Research Center
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White Papers
Efficient Pipelined Hardware Implementation of RIPEMD-160 Hash Function
Jun 2009
In this paper an efficient implementation of Ripemd- 160 hash function is presented. Hash functions are a special family of cryptographic algorithms, which is used in technological applications...
Provided by University of Patras
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White Papers
Enterprise Delegation for Service Based Systems
May 2011
Sharing information and maintaining privacy and security is a requirement in distributed environments. Mitigating threats in a distributed environment requires constant vigilance and...
Provided by Institute for Defense Analyses
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White Papers
PKI in Government Identity Management Systems
May 2011
The purpose of this paper is to provide an overview of the PKI project initiated part of the UAE national ID card program. It primarily shows the operational model of the PKI implementation that...
Provided by Emirates Identity Authority
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White Papers
KeyChains: A Decentralized Public-Key Infrastructure
Jan 2011
A Certification Authority (CA) can be used to certify keys and build a Public-Key Infrastructure (PKI) when all users trust the same CA. A decentralized PKI trades off absolute assurance on keys...
Provided by University of Maryland
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White Papers
A Cryptosystem Based on the Symmetric Group Sn
Feb 2008
This paper proposes a public key cryptosystem based on the symmetric group Sn, and validates its theoretical foundation. The proposed system benefits from the algebraic properties of Sn such as...
Provided by Shahid Beheshti University
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White Papers
A Method for Detecting the Exposure of a Secret Key in Key-Insulated Scheme
Sep 2008
Dodis et al proposed a key-insulated signature scheme in 2003. In the scheme, total lifetime of a certificate is divided to time periods and different secret keys are used for each time period....
Provided by Sungkyunkwan University
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White Papers
A Deployment Model of DNSSEC: Defining Problems and Solutions
Sep 2008
The exponential development of the activities taken into account by the current Internet and with them, the plethoric number of Net surfers with various intentions, endangers all the Internet...
Provided by Institut National Polytechnique Felix Houphouet Boigny
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White Papers
Towards Public Key Infrastructure Less Authentication in Session Initiation Protocol
Jan 2010
The Session Initiation Protocol (SIP) has become the most predominant protocol for Voice over Internet Protocol (VoIP) signaling. Security of SIP is an important consideration for VoIP...
Provided by Islamic University of Technology
-
White Papers
Information Security and Sender's Rights Protection Through Embedded Public Key Signature
May 2010
Information security is not just to provide an authenticity and integrity to the data, but there is also a need to seek identity, rights of use and origin of information, which may require some...
Provided by Banasthali University
-
White Papers
IDEAS: An Identity-Based Security Architecture for Large-Scale and High-Performance Storage Systems
Feb 2009
The authors develop IDEAS, identity-based security architecture for large-scale and high-performance storage systems, designed to improve security, convenience and total cost of access control by...
Provided by University of Nebraska-Lincoln
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White Papers
A User-Centric PKI Based-Protocol to Manage FC2 Digital Identities
Jan 2011
The proliferation of e-services (e.g. e-commerce, e-health, e-government) within the emerging digital Identity Management Systems make Internet an undeniable convenient and powerful tool for...
Provided by International Journal of Computer Science Issues
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White Papers
The Case for Abstracting Security Policies
Jan 2011
As Internet connectivity grows executing untrusted code becomes an increasingly serious threat. Public Key Infrastructure (PKI) and digital signatures offer some degree of protection, but are only...
Provided by University of Cambridge
-
White Papers
Salvaging Merkle-Damg°ard for Practical Applications
Jan 2009
Many cryptographic applications of hash functions are analyzed in the random oracle model. Unfortunately, most concrete hash functions, including the SHA family, use the iterative (Strengthened)...
Provided by University of California, San Diego
-
White Papers
SWIFFT: A Modest Proposal for FFT Hashing
Feb 2008
The authors propose SWIFFT, a collection of compression functions that are highly parallelizable and admit very efficient implementations on modern microprocessors. The main technique under-lying...
Provided by SRI International
-
White Papers
Analysis of SPKI/SDSI Certificates Using Model Checking
Jan 2011
SPKI/SDSI is a framework for expressing naming and authorization issues that arise in a distributed-computing environment. In this paper, the authors establish a connection between SPKI/SDSI and a...
Provided by University of Wisconsin
-
White Papers
TinyECC: A Configurable Library for Elliptic Curve Cryptography in Wireless Sensor Networks
May 2008
Public Key Cryptography (PKC) has been the enabling technology underlying many security services and protocols in traditional networks such as the Internet. In the context of wireless sensor...
Provided by NC State University
-
White Papers
Public Key Encryption With Keyword Search
Jan 2011
The authors study the problem of searching on data that is encrypted using a public key system. Consider user Bob who sends email to user Alice encrypted under Alice's public key. An email gateway...
Provided by Stanford University
-
White Papers
The Requirements for Building an e-Commerce Infrastructure
Nov 2009
This paper will present all requirements to build a reliable e-commerce infrastructure in Jordan. Ecommerce is one of the main desired outcomes from a state internet readiness. Despite the fact...
Provided by Academy Publisher
-
White Papers
Implementing an SPKI Certificate Repository Within the DNS
Jan 2011
Authorization certificates can be used to grant access rights from the owner of a resource to other entities and then to further share these rights with others using delegation. However, when...
Provided by Helsinki University of Technology
-
White Papers
A Revocation, Validation and Authentication Protocol for SPKI Based Delegation Systems
Jan 2011
In distributed systems, the access control mechanism in is often modeled after stand-alone solutions, such as A CLs. Such arrangement, however, is not ideal as the system may be mirrored around...
Provided by Helsinki University of Technology
-
White Papers
Use of Symmetric and Asymmetric Cryptography in False Report Filtering in Sensor Networks
Oct 2007
Sensor networks are easily deployable networks of inexpensive sensor nodes. The sensors detect events of interest, for example forest fires, battlefield events, and so on. The sensor nodes form an...
Provided by Helsinki University of Technology
-
White Papers
Attacks on Message Stream Encryption
Oct 2008
Message Stream Encryption (MSE) provides obfuscation, data confidentiality, and limited authentication to BitTorrent clients. Although obfuscation of header and payload data was the main design...
Provided by Helsinki University of Technology
-
Whitepapers
A Simulation Based Framework to Characterize Pseudonymous Authentication in VANET
May 2011
Privacy & security are two essential security attributes of secure Vehicle-To-Vehicle (V2V) communications. To achieve the required security attributes, Public Key Infrastructure (PKI) and later...
Provided by International forum of researchers Students and Academician
-
White Papers
Self-Generated-Certificate Based Cryptographic Protocol With Lite Certificate Management
May 2009
In spite of the vital role played by Digital Certificates in Public Key Cryptographic systems, the overhead involved in maintaining those made them prohibitory. Certificateless Public Key...
Provided by Academy Publisher
-
White Papers
A New Authentication Scheme for Session Initiation Protocol
Sep 2009
In 2008, Tsai proposed an efficient nonce-based authentication scheme for Session Initiation Protocol (SIP). The current paper, however, demonstrates that Tsai's authentication scheme is still...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
AEMA: An Aggregated Emergency Message Authentication Scheme for Enhancing the Security of Vehicular Ad Hoc Networks
Sep 2008
To achieve efficient authentication on emergency events in vehicular ad hoc networks, the authors introduce a novel Aggregated Emergency Message Authentication (AEMA) scheme to validate an...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Lightweight Asymmetric Privacy-Preserving Authentication Protocols Secure Against Active Attack
Oct 2009
As pervasive computing technologies develop fast, the privacy protection becomes a crucial issue and needs to be coped with very carefully. Typically, it is difficult to efficiently identify and...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
E-Commerce Security Using PKI Approach
Aug 2010
As a most popular business model, ECommerce provides a more convenient business mode and lower transaction cost. Currently Ecommerce security is still an obstacle in development of e-commerce. It...
Provided by Engg Journals Publications
-
White Papers
Secure Public-Key Based Effective and Efficient Sensor Networks
Mar 2010
Sensor networks presented new opportunities for observing and interacting with the real physical world. They are composed of a large number of sensor nodes and each sensor node has capabilities of...
Provided by University of Canberra
-
White Papers
PKI Layer Cake: New Collision Attacks Against the Global X.509 Infrastructure
Mar 2010
Research unveiled in December of 2008 showed how MD5's long-known flaws could be actively exploited to attack the real-world Certification Authority infrastructure. This paper demonstrates two new...
Provided by Katholieke Universiteit Leuven
-
White Papers
Tradeoffs Between Jamming Resilience and Communication Efficiency in Key Establishment
Jan 2011
The authors address the problem of allowing authorized users, who do not preshare a common key, to effectively exchange key establishment messages over an insecure channel in the presence of...
Provided by University of Washington
-
White Papers
A Canonical Seed Assignment Model for Key Predistribution in Wireless Sensor Networks
Oct 2007
A promising solution for trust establishment in wireless sensor networks is the assignment of cryptographic seeds (Keys, secrets, etc.) to sensor nodes prior to network deployment, known as key...
Provided by Association for Computing Machinery
-
White Papers
Analysis of Public-Key Cryptography for Wireless Sensor Networks Security
Jun 2009
With the widespread growth of applications of Wireless Sensor Networks (WSNs), the need for reliable security mechanisms these networks has increased manifold. Many security solutions have been...
Provided by Sharif University of Technology
-
White Papers
A New Knapsack Public-Key Cryptosystem Based on Permutation Combination Algorithm
Aug 2010
A new secure knapsack cryptosystem based on the Merkle-Hellman public key cryptosystem will be proposed in this paper. Although it is common sense that when the density is low, the knapsack...
Provided by Asia University
-
White Papers
Alpaca: Extensible Authorization for Distributed Services
Nov 2007
Traditional Public Key Infrastructures (PKI) has not lived up to their promise because there are too many ways to define PKIs, too many cryptographic primitives to build them with, and too many...
Provided by Association for Computing Machinery
-
White Papers
Computer Proven Correctness of the Rabin Public-Key Scheme
Jun 2009
The authors describe a formal specification and verification of the Rabin public-key scheme in the formal proof system Isabelle/ HOL. The idea is to use the two views of cryptographic...
Provided by World Academy of Science, Engineering and Technology
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White Papers
DoubleCheck: Multi-Path Verification Against Man-in-the-Middle Attacks
Mar 2009
Self-signed certificates for SSL and self-generated hosts keys for SSH are popular zero-cost, simple alternatives to Public Key Infrastructure (PKI). They provide security against...
Provided by Columbia University
-
White Papers
TAPI: Transactions for Accessing Public Infrastructure
Jan 2011
This paper describes TAPI, an offline scheme intended for general Internet-based micropayments. TAPI, which extends and combines concepts from the KeyNote Microchecks and OTPCoins architectures,...
Provided by Columbia University
-
White Papers
Autonomous Security for Autonomous Systems
Mar 2008
The Internet's inter-domain routing protocol, BGP, supports a complex network of Autonomous Systems which is vulnerable to a number of potentially crippling attacks. Several promising...
Provided by University of New Mexico
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White Papers
Interoperable PKI Data Distribution in Computational Grids
Aug 2008
One of the most successful working examples of virtual organizations, computational grids needs authentication mechanisms that inter-operate across domain boundaries. Public Key Infrastructures...
Provided by Dartmouth College
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White Papers
Provably Secure Timed-Release Public Key Encryption
May 2008
A timed-release cryptosystem allows a sender to encrypt a message so that only the intended recipient can read it only after a specified time. The authors formalize the concept of a secure...
Provided by Association for Computing Machinery
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White Papers
SSE Implementation of Multivariate PKCs on Modern X86 CPUs
Jul 2009
Multivariate Public Key Cryptosystems (MPKCs) are often touted as future-proofing against Quantum Computers. It also has been known for efficiency compared to "Traditional" alternatives. However,...
Provided by International Association for Cryptologic Research
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White Papers
Active Attacks Against Modulation-Based Radiometric Identification
Aug 2009
Radiometric identification is a recently coined term that describes a broad category of techniques for determining the identity of a wireless device based on unique characteristics of its...
Provided by Rensselaer Polytechnic Institute
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White Papers
Comparing Symmetric-Key and Public-Key Based Security Schemes in Sensor Networks: A Case Study of User Access Control
Mar 2008
While symmetric-key schemes are efficient in processing time for sensor networks, they generally require complicated key management, which may introduce large memory and communication overhead. On...
Provided by College of William and Mary
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White Papers
PDF: A Public-Key Based False Data Filtering Scheme in Sensor Networks
Jul 2007
Given the extremely limited hardware resources on sensor nodes and the inclement deploying environment, the adversary Denial-of-Service (DoS) attack becomes a serious security threat toward...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Thwarting Blackhole Attacks in Distruption-Tolerant Networks Using Encounter Tickets
May 2009
Nodes in Disruption-Tolerant Networks (DTNs) usually exhibit repetitive motions. Several recently proposed DTN routing algorithms have utilized the DTNs' cyclic properties for predicting future...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Achieving Robust Message Authentication in Sensor Networks: A Public-Key Based Approach
May 2009
Given the extremely limited hardware resources on sensor nodes and the inclement deploying environment, the adversary Denial-of-Service (DoS) attack becomes a serious security threat toward...
Provided by Springer Science+Business Media
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White Papers
WM-ECC: An Elliptic Curve Cryptography Suite on Sensor Motes
Oct 2007
Even though symmetric-key scheme, which has been investigated extensively for sensor networks, can fulfill many security requirements, public-key cryptography is more flexible and simple rendering...
Provided by College of William and Mary
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White Papers
Readers Behaving Badly: Reader Revocation in PKI-Based RFID Systems
Apr 2010
Recent emergence of RFID tags capable of performing public key operations motivates new RFID applications, including electronic travel documents, identification cards and payment instruments. In...
Provided by University of California, Irvine
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White Papers
Authenticated Broadcast With a Partially Compromised Public-Key Infrastructure
Aug 2009
Given a Public-Key Infrastructure (PKI) and digital signatures, it is possible to construct broadcast protocols tolerating any number of corrupted parties. Almost all existing protocols, however,...
Provided by University of Maryland
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White Papers
J-PAKE: Authenticated Key Exchange Without PKI
Aug 2010
Password Authenticated Key Exchange (PAKE) is one of the important topics in cryptography. It aims to address a practical security problem: how to establish secure communication between two...
Provided by University of Luxembourg
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White Papers
Multi-Recipient Encryption Schemes: Efficient Constructions and Their Security
Nov 2007
This paper proposes several new schemes which allow a sender to send encrypted messages to multiple recipients more efficiently (in terms of bandwidth and computation) than by using a standard...
Provided by University of California
