"Digital Signature" Essays and Research Papers

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An_Introduction_To_Cryptography

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Digital signatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Hash functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Digital certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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Security Features Used for Heterogeneous Networks in Wireless Architecture

is a deterministic function that maps a bit string of an arbitrary length to a value (hash value) that is a bit string of a fixed (usually smaller) length. Hash mechanisms are used in cryptography as a method to generate message digests for digital signature, practical pseudo-random numbers, and for data integrity. Key management is a method for establishing and renewing keys to communicating parties. A key for a symmetric cryptosystem can be established mainly by two methods: conventional techniques...

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Information Technology Act and the Rise of Cyber Crimes

and digital technology have made dramatic changes in way of transacting business. Mid 90’s saw an impetus in globalization and computerisation, with more and more nations computerizing their governance, and e-commerce seeing an enormous growth. Use of computers to create, transmit, and store information is increasing. Computers have many advantages in e-commerce. It is difficult to shift business from paper to electronic form due to 2 legal hurdles: 1) Requirements as to writing, 2) Signature for...

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ABC Institute of Research: Case Study

private key. Since I am the only person in the world that has my private key, when you use my public key to verify the message it will be decrypted. Anyone else’s key will result in unreadable gibberish. This also becomes useful for online digital signatures of important documents. All of this is overseen by a certification authority. If at any time a private key is lost or compromised in some way, that key is placed on a revocation list and will forever be out of use. That person will then be...

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Multiservice Smart Card Systems

(medical) : Smart health cards can improve the security and privacy of patient information, provide a secure carrier for patient identity. * Identification : A quickly growing application is in digital identification. In this application, the cards authenticate identity. The card stores an encrypted digital certificate along with other relevant information. Combined with biometrics, cards can provide two- or three-factor authentication. * Schools : Smart cards are being provided to students at...

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Secure e-Exam System

institution implies that different security mechanisms must be applied in order to preserve some security properties during different examination stages. In this paper, we present a secure e-exam management system where all exam related information is in digital format. We propose a cryptographic scheme that has to be executed in order to achieve the desired security levels at every exam stage. Keys words: e-learning security, electronic exams (eexam), cryptographic protocols. 1 Introduction In e-learning...

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1500 Claim Form Assignment

INJURY (Accident) OR PREGNANCY (LMP) 21. DIAGNOSIS OR NATURE OF ILLNESS OR INJURY V70.0 . 24. A. . DATE(S) OF SERVICE From To DD YY MM 4. | DD YY UN IV MM . 3. | 25. FEDERAL TAX I.D. # . SSN EIN B. C. PLACE OF SERVICE EMG . F signature on file 20. OUTSIDE LAB? $CHARGES YES NO 22. MEDICADE RESUBMISSION CODE ORIGINAL REF. # . 23. PRIOR AUTHORIZATION # . D. PROCEDURES, SERVICES, OR SUPPLIES (Explain Unusual Circumstances) CPT/HCPCS MODIFIER E. DIAGNOSIS POINTER F. G. H...

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network cryptography

network paths. The NTP security model is common to many other ubiquitous, distributed applications, such as directory services, web servers and archive repositories. Conventional authentication models are based on public-key cryptography and digital signatures; however, the known public-key algorithms drastically degrade timekeeping accuracy and require significant computing resource commitments. Current key-agreement schemes based on Diffie-Hellman [11] do not scale well in a large network with...

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Cyberlaws in India

2000, was thus passed as the Act No.21 of 2000, got President assent on 9 June and was made effective from 17 October 2000. The Act essentially deals with the following issues: Legal Recognition of Electronic Documents Legal Recognition of Digital Signatures Offenses and Contraventions Justice Dispensation Systems for cyber crimes. Amendment Act 2008: Being the first legislation in the nation on technology, computers and ecommerce and e-communication, the Act was the subject of extensive debates...

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Comparative Analysis of Private, Public Banks

Finance Semester IV {2012-13} hereby declare that I have completed the project on “Project on study on impact of technology on customer needs in banking”. The information submitted is true and original to the best of my knowledge. Signature Nayana Shree N S Roll No. ACKNOWLEDGEMENT Many people have played a part in making this project study a success by giving their valuable inputs and useful suggestions. Firstly I would express my gratitude to the University Of Mysore...

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