Asymmetric encryption

When devices connecting to the Internet, one of the most problem occurred is security. There are many researchers focusing on this problem so far. Diffie-Hellman type key exchange protocols have a certain role in information security applications. This article proposes to perform encryption using pseudo-random strings to prevent unwanted attacks.

7p vijaychest 16-05-2024 3 1   Download

This paper presents a protocol to enhance the secrecy of exchanging symmetric key and the flexibility of updating the partially reconfigurable embedded system over the Internet. The proposed protocol uses an asymmetric encryption algorithm to protect symmetric encryption keys from thefts and tampers over a transmission line.

6p vilexus 30-09-2022 32 6   Download

This chapter presents the following content: Outline of the course is discussed; topic roadmap & standards organizations; security concepts; X.800 security architecture; security attacks, services, mechanisms; models for network (access) security.

80p koxih_kothogmih3 24-08-2020 23 4   Download

The contents of this chapter include all of the following: Remote user authentication issues, authentication using symmetric encryption, the Kerberos trusted key server system, authentication using asymmetric encryption, federated identity management.

59p koxih_kothogmih3 24-08-2020 21 3   Download

The contents of this chapter include all of the following: Symmetric ciphers, asymmetric ciphers, cryptographic data integrity algorithms, mutual trust, network security and internet security, system security, legal and ethical issues.

123p koxih_kothogmih3 24-08-2020 22 3   Download

The contents of this chapter include all of the following: Diffie-Hellman key exchange, ElGamal cryptography, Elliptic curve cryptography, Pseudorandom Number Generation (PRNG) based on Asymmetric Ciphers.

54p koxih_kothogmih3 24-08-2020 16 2   Download

Lecture Design and Analysis of Algorithms - Lecture 22: Cryptography: Encryption.The following will be discussed in this chapter: Symmetric key encryption, key exchange, asymmetric key encryption, RSA, NP-complete problems and cryptography.

7p nanhankhuoctai3 25-05-2020 17 0   Download

This paper presents a simulation based study of a wireless communication system with the implementation of secured asymmetric RSA cryptographic encryption/decryption algorithm on text message transmission. The system under investigation incorporates 2/3-rated CRC channel coding and QPSK digital modulation over an additive white Gaussian noise (AWGN) channel. For tackling the security problems a text message is first RSA encrypted at the transmitter while it is decrypted at the receiver end and compared for different levels of SNR.

6p byphasse043256 21-03-2019 25 0   Download

This chapter introduces the concepts of cryptography and covers encryption, hashing, and digital signatures and how these techniques provide confidentiality, integrity, authenticity, and nonrepudiation. You will learn about algorithms, symmetric and asymmetric encryption, digital signatures, and Public Key Infrastructure (PKI).

77p kiepnaybinhyen_02 28-12-2015 47 3   Download

Lecture Security + Guide to Network Security Fundamentals - Chapter 8 include objectives: Define cryptography, secure with cryptography hashing algorithms, protect with symmetric encryption algorithms, harden with asymmetric encryption algorithms, explain how to use cryptography.

46p kiepnaybinhyen_04 15-12-2015 48 6   Download

Abstract Elliptic curve cryptosystems offer security comparable to that of traditional asymmetric cryptosystems, such as those based on the RSA encryption and digital signature algorithms, with smaller keys and computationally more efficient algorithms.

327p dunglh2013 02-04-2014 41 4   Download

In this paper, we propose an efficient hardware implementation of this primitive that can be used for asymmetric digital signature, key exchange and asymmetric encryption. To our knowledge this is the first hardware implementation of XTR.

15p dunglh2013 02-04-2014 41 0   Download

Classified along three independent dimensions: The type of operations used for transforming plaintext to ciphertext The number of keys used symmetric (single key) asymmetric (two-keys, or public-key encryption) The way in which the plaintext is processed

26p muathu_102 28-01-2013 63 5   Download

So… Symmetric key (private key) encryption is fast and nice, but has what MAJOR problem? Symmetric Key encryption, also doesn’t provide integrity concerns ;( Asymmetric Key/public key encryption can be combined with Symmetric Key encryption to solve BOTH problems, but Symmetric Key encryption has what problem of it’s own?

41p doilan 25-01-2013 57 3   Download

There is a clear and urgent need for a national research network. This nation stands to gain considerably from the many direct and indirect benefits that would accrue from an NRN. The OSTP report begins to address the basic issues for an NRN, but it is silent on many important issues, especially those pertaining to the relationship between the NRN and commercial network services. (Nevertheless, the fundamental recommendation for an NRN is sound, as far as it goes.)

66p mnemosyne75 02-02-2013 34 3   Download

Privacy Enhanced Mail (PEM) was the first serious effort to secure Internet mail. The Internet Resources Task Force (IRTF) Privacy and Security Research Group (PSRG) did the initial design. The Internet Engineering Task Force (IETF) PEM Working Group continued development for three years, resulting in a four- part Proposed Internet Standard published in early 1993 [64] [56] [5] [55]. PEM is a broad standard suite, it provides encryption, authentication, message integrity and key management. PEM supports both symmetric and asymmetric (public- key) key management schemes.

109p cao_can 02-01-2013 57 4   Download

Wireless Sensor Networks hold the promise of delivering a smart communication paradigm which enables setting up an intelligent network capable of handling applications that evolve from user requirements. With the recent technological advances of wireless sensor network, it is becoming an integral part of our lives. However, due to the nature of wireless sensor networks, researchers face new challenges related to the design of algorithms and protocols.

320p greengrass304 18-09-2012 104 25   Download

What Is Needed to Build a VPN? Overlay and Peer-to-Peer VPN Architecture VPN Topologies Characteristics of a Secure VPNs VPN Security: Encapsulation VPN Security: IPsec and GRE VPN Security: Symmetric and Asymmetric Encryption Algorithms Symmetric Encryption Algorithms Asymetric Encryption Diffie-Hellman Key Exchange Data Integrity VPN Security: Authentication

102p danhson1409 02-12-2010 80 16   Download