Definition of Cryptology
What is Cryptology?
Cryptology is the art developing a secret code and/or the using code in an encryption system converting information from its normal, comprehensible form into an incomprehensible format, rendering it unreadable without secret knowledge.
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Cryptology
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AnonAccess
This paper gives an overview of the AnonAccess-system, which tries to provide access to users which may be known by name, pseudonym or a shared pseudonym, to a given functionality (ex. open a door). The shared pseudonym access feature is tried to be extended and implemented in such a way that it can be claimed to be anonymous.
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Strongly Unforgeable ID-based Signatures
In 1984, Shamir [17] introduced the concept of ID-based cryptosystem, in which the private key of an entity was generated from his identity information (e.g. an e-mail address, a telephone number, etc.) and a master key of a trusted third party called a Private Key Generator (PKG). The advantage of this cryptosystem is that certificates as used in a traditional public key infrastructure can be eliminated.
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The Encrypted Elliptic Curve Hash
In this paper, we remove such a reliance by replacing the pre-existing hash with a block cipher under a fixed key. We adapt Bellare and Micciancio’s collision-resistance proof to the ideal cipher model. Preimage resistance requires us to add a further modification.
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Securing Wireless Sensor Networks with Authenticated Encryption
Sensor networks offer economically viable monitoring solutions for a wide variety of applications. In order to combat the security threats that sensor networks are exposed to, a cryptography protocol is implemented at sensor nodes for point-to-point encryption between nodes. Disclosure, disruption and deception threats can be defeated by authenticating data sources as well as encrypting data in transmission. Given that nodes have limited resources, symmetric cryptography that is proven to be efficient for low power devices is implemented. Data protection is integrated into a sensor’s packet by the means of symmetric encryption with the Dragon stream cipher and incorporating the newly designed Dragon-MAC Message Authentication Code.
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Security Pitfalls in Cryptography
A cryptographic system can only be as strong as the encryption algorithms, digital signature algorithms, one-way hash functions, and message authentication codes it relies on. Break any of them, and you've broken the system. And just as it's possible to build a weak structure using strong materials, it's possible to build a weak cryptographic system using strong algorithms and protocols.
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Cryptography - The myths
You may wonder why cryptography is so important and the people need to study more about it. We will learn more about the cryptography and the awareness that every information specialist should know about cryptography and its importance. Cryptography - is the study of mathematical techniques related to the aspects of information security such as confidentiality, data integrity, authentication and data origination. We are going to see the history and science of cryptography. The science behind every form of security, authentication mechanisms, information or data safety, in our words, information security and what not. The reason is, whichever operating system you use, whatever programs or authentication systems you deploy, the actual strength of the system to withstand attacks against possible ways depends highly on the underlying cryptosystem.
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TinyPBC: Pairings for Authenticated Identity-Based Non-Interactive Key Distribution in Sensor Networks
Key distribution in Wireless Sensor Networks (WSNs) is challenging. Symmetric cryptosystems can perform it efficiently, but they often do not provide a perfect trade-off between resilience and storage. Further, even though conventional public key and elliptic curve cryptosystem are computationally feasible on sensor nodes, protocols based on them are not. They require exchange and storage of large keys and certificates, which is expensive. Using Pairing-based Cryptography (PBC) protocols, conversely, parties can agree on keys without any interaction. In this work, we show how security in WSNs can be bootstrapped using an authenticated identity-based non-interactive protocol and present TinyPBC, to our knowledge, the most efficient implementation of PBC primitives for an 8-bit processor.
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Safecracking for the computer scientist
This paper is a general survey of safe and vault security from a computer science perspective, with emphasis on the metrics used to evaluate these systems and the weaknesses that cause them to fail. We examine security against forced, covert and surreptitious safe opening, focusing on the mechanical combination locks most commonly used on commercial safes in the US. Our analysis contrasts the philosophy and tools of physical security with those of information security, especially where techniques might be profitably applied across these disciplines.
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Five Mistakes of Data Encryption
If you follow the media today, you might get to a conclusion that data encryption is everywhere. However, is this "good" encryption? A classic saying "Encryption is easy; key management is hard" illustrates one of the pitfalls that await those implementing encryption enterprise-wide or even SMB-wide. This paper covers some of the other mistakes that often occur when organizations try to use encryption to protect data-at-rest and data-in-transit and thus improve their security posture.
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Security Squad: Database security- encryption Episode23 min 51 sec
Information Security magazine editors Neil Roiter and Michael Mimoso discuss Google's foray into the security market and whether companies should turn to database encryption to meet the PCI Data Security Standard in the wake of the TJX data security breach. Also the editors discuss whether the "month of" security flaw Web sites are helpful in securing software or just shameless publicity by security researchers. And finally, SearchSecurity.com News Writer Bill Brenner provides analysis from the Gartner IT Security Summit in Washington.
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