'Hash chain' diaporamas de présentation

Kaj sestavlja Blockchain?

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Multicast Authentication in Fully Adversarial Networks

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MARKS: Zero side-effect M ulticast key mgmt using A rbitrarily R evealed K ey S equences

MARKS: Zero side-effect M ulticast key mgmt using A rbitrarily R evealed K ey S equences. Bob Briscoe BT Research 7 Nov 1999. context. key mgmt: the problem. member. time. context. application data unit (ADU). wrt security/charging.

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TCG: Trusted Computing Group

Spring 2008. CS 155. TCG: Trusted Computing Group. Background. TCG consortium. Founded in 1999 as TCPA. Main players (promotors): (>200 members) AMD, HP, IBM, Infineon, Intel, Lenovo, Microsoft, Sun Goals : Hardware protected (encrypted) storage :

484 views • 36 slides

Securing Ad Hoc Network Routing Protocols

Securing Ad Hoc Network Routing Protocols. Yih-Chun Hu. April 24, 2008. Attacks Against Routing. Attacker causes packets normally routed through itself to instead use a worse route Example: Fail to advertise a route Attacker receives a packet for forwarding but instead discards it

476 views • 31 slides

Electronic Commerce

Electronic Commerce. how to buy and sell things on-line point-of-sale technology phone cards, electronic (unforgeable) plane tickets, subway tokens, etc. issues privacy preventing fraud lowering cost. Traditional Commerce: Cash. anonymous low fraud prone to loss or theft

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CSC 774 Advanced Network Security

CSC 774 Advanced Network Security. Topic 6. Security in Mobile Ad-Hoc Networks. Mobile Ad-hoc Networks (MANET). MANET No infrastructure support Wireless communication Mobile Applications for MANET Rescue missions Scientific explorations Military operations. Security in MANET.

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Mitigating Sandwich Attacks against a Secure Key Management in WSNs for PCS/SCADA

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introduction to Blockchain

A wallet is an address on the Blockchain. Someone wanting to conduct a transaction must send a message with the transaction signed with their private key. ... The computers in the network holding the Blockchain are called nodes. Miners place transactions in blocks in response to proof of work challenges.

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MSRC: (M)icropayment (S)cheme with Ability to (R)eturn (C)hanges

MSRC: (M)icropayment (S)cheme with Ability to (R)eturn (C)hanges. Source: Journal of Information Science and Engineering in review Presenter: Tsuei-Hung Sun ( ??? ) Date: 2010/11/ 26. Outline. Introduction M otivation Scheme Security analysis Comparison Advantage vs. weakness

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Authentication in Mobile Ad-hoc Network (MANET)

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Authentication in Mobile Ad-hoc Network (MANET)

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Rainbow Tables and Multiprocessor Computing

Rainbow Tables and Multiprocessor Computing. by Wild King. What are the rainbow tables ?. Generally speaking , a rainbow table is a lookup table which is used to recover the plain-text password that derives from a hashing or cryptographic function.

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I nnovative Intrusion-Resilient, DDoS -Resistant Authentication System (IDAS) System

I nnovative Intrusion-Resilient, DDoS -Resistant Authentication System (IDAS) System. Yanjun Zhao. Current Protocols. SSL (Secure Sockets Layer) protocol IPSec(Internet Protocol Security ) suffer from intrusion and single-point ofcompromising

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ITIS 6010/8010: Wireless Network Security

ITIS 6010/8010: Wireless Network Security. Weichao Wang. Secure Efficient Ad Hoc Distance Vector (SEAD) Is based on DSDV Use hash chain to accomplish authentication and avoid DoS Assumptions: The diameter of the network is shorter than m hops Use hash chains to authenticate route updates

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Capture The Flag Review

Capture The Flag Review. Fall 2003 Giovanni Vigna University of California Santa Barbara http://www.cs.ucsb.edu/~vigna. CTF. OS image configured with a number of services running on VMWare Red Hat 9.0 on VMWare 4.0.5 on Red Hat 9.0 Service examples

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Hybrid Protection of OLSR

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Minghui Shi, Xuemin Shen, Yixin Jiang, Chuang Lin CMSC 681 Fall 2007 Advanced Computer Networks

Self-Healing Group-Wise Key Distribution Schemes with Time-Limited Node Revocation for Wireless Sensor Networks. Minghui Shi, Xuemin Shen, Yixin Jiang, Chuang Lin CMSC 681 Fall 2007 Advanced Computer Networks Isaac Mativo. Sensor Node. Typical sensor node contains Power unit Sensing unit

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Minghui Shi, Xuemin Shen, Yixin Jiang, Chuang Lin CMSC 681 Fall 2007 Advanced Computer Networks

Self-Healing Group-Wise Key Distribution Schemes with Time-Limited Node Revocation for Wireless Sensor Networks. Minghui Shi, Xuemin Shen, Yixin Jiang, Chuang Lin CMSC 681 Fall 2007 Advanced Computer Networks Isaac Mativo. Sensor Node. Typical sensor node contains Power unit Sensing unit

115 views • 11 slides

New Broadcast Paradigm in collaborative environments ANY SOURCE P-BROADCAST (ASPB)

<S2>, <S4>. Unique Public Key Detect compromised ID. Pretend. <S1>, <S5>. AnyPCast : A Scalable Authentication Protocol for Any-Source P-Broadcast. Illinois Center for Wireless Systems. Introduction.

130 views • 1 slides