AIT 682: Network and Systems Security
|
|
- Morgan Franklin
- 7 months ago
- Views:
Transcription
1 AIT 682: Network and Systems Security Final Exam Review Instructor: Dr. Kun Sun
2 Topics covered by Final Topic before Midterm 10% Topic after Midterm 90% Date: 12/13/2017 7:30am 10:15am Place: the same classroom Open book/notes exam No laptop/tablet/smartphones etc. 2
3 Topics covered by MidTerm Topic 1. Basic Concepts Topic 2. Basic Cryptography Topic 3. Secret Key Cryptography Topic 4. Hash Functions Topic 5. Basic Number Theory and Public Key Cryptography 3
4 Topics covered after MidTerm Topic 6. Identification and Authentication Topic 7. Trusted Intermediaries Topics IPsec and IKE Topic 8.3 SSL/TLS Topic 8.4 Firewalls and IDS 4
5 Topic 6. Identification and Authentication Be able to explain the concepts of authentication and identification. Be able to give examples of authentication mechanisms. Be able to explain general approaches for authentication in large networks using trusted intermediaries (KDC and CA), and explain what are KDC, CA, and CRL. Be able to explain the general basis of user authentication (what the user knows, where the user can be reached, what the user is, and what the user has). 5
6 Topic 6. Identification and Authentication (cont d) Be able to explain what is password based user authentication, threats to password based authentication, how to store user passwords in computer systems. Be able to explain dictionary attacks (both online and offline). Be able to describe the password salt mechanism used to mitigate dictionary attacks and its effectiveness against online and offline dictionary attacks. Be able to explain the one-time password mechanisms, including S/Key and time synchronized authentication tokens. Be able to explain biometrics based user authentication and give examples of such approaches. Be able to explain the key metrics for biometrics authentication, including false positives and false negatives. 6
7 Topic 6. Identification and Authentication (cont d) Be able to explain typical attacks against authentication protocols, including eavesdropping, deleting, forging, modifying, replaying, reflection attacks, and delaying attacks. Be able to illustrate the above attacks using examples. Be able to describe defenses against the above attacks. Be able to describe the Needham-Schroeder protocol. Be able to explain the "old-key attack" against the Needham- Schroeder protocol and the three countermeasures (timestamp, expanded N-S, and Ottay-Ree protocol). 7
8 Topic 7. Trusted Intermediaries Be able to explain the general way KDC based trusted intermediaries are used. Be able to describe the Kerberos V4 protocol, and explain which parts of the protocol help achieve (1) centralized authentication service, (2) protection of user passwords, and (3) anti-replay attack capability. Be able to describe Kerberos inter-realm authentication. 8
9 Topic 7. Trusted Intermediaries (cont d) Be able to explain the general way PKI is used. Be able to explain what is a CA, and describe the ways that multiple CAs are organized in large networks. Be able to explain what is CRL and delta CRL. 9
10 Topics IPsec and IKE Be able to describe the IPsec architecture, IPsec Security Association (SA), SA bundle, Security Parameter Index (SPI). Explain the purpose of Security Policy Database (SPD), Secure Association Database (SAD), and Internet Key Exchange (IKE) modules in the IPsec architecture. Be able to describe the IPsec Authentication Header (AH) and Encapsulating Security Payload (ESP) protocols as well as Tunnel and Transport modes. Be able to describe the difference in the authentication capabilities provided by AH and ESP. 10
11 Topics IPsec and IKE (cont d) Be able to describe the anti-replay feature in IPsec ESP. Be able to explain the IPsec outbound processing and inbound processing. Be able to explain the security principles for Internet key management, particularly the property of Perfect Forward Secrecy (PFS). Be able to describe the (only known) way to achieve PFS (ephemeral D-H). Be able to describe the separation of key establishment and key management in Internet key management. Be able to describe the SKIP protocol for sessionless IPsec key management. 11
12 Topics IPsec and IKE (cont d) Be able to describe the Oakley key establishment protocol and explain the mechanisms to defeat (1) resource clogging attacks (i.e., Cookie), (2) replay attacks (i.e., nonce), and (3) man-in-the-middle attacks (i.e., with authentication). Be able to explain high-level issues of ISAKMP protocol, including the protocol structure (2 phases), protocol message construction (i.e., with different types of payloads), and exchange types. Be able to explain the following ISAKMP exchanges: basic exchange, ID protection exchange, authentication only exchange, aggressive exchange, and informational exchange. 12
13 Topics IPsec and IKE (cont d) Be able to explain the IKE protocol, including the phase 1 exchanges using (1) signature authentication, (2) authentication with public key encryption, (3) authentication with revised public key encryption, and (4) authentication with preshared key in both main mode and aggressive mode. In each case, be able to explain how authentication is achieved, how PFS is achieved, and how ID protection is achieved. 13
14 Topic 8.3 SSL/TLS Be able to explain the basic facts of SSL/TLS, including its protocol architecture, its subprotocols and their objectives, basic SSL functionalities (authentication, secrecy, compression, generation and distribution of keys, security parameter negotiation), and SSL connection and session. Be able to describe the SSL record protocol operations (outbound and inbound). Be able to describe the SSL handshake protocol operations (4 phases), the generation of master secret and cryptographic parameters. 14
15 Topic 8.3 SSL/TLS (cont d) Be able to describe the change cipher spec protocol, and explain how the cryptographic parameters negotiated in the handshake protocol take effect through the change cipher spec protocol. Be able to give examles of application protocols that run on top of SSL (https, smtps, nntps, ftps, pop3s, imaps). 15
16 Topic 8.4 Firewalls and IDS Be able to explain the following concepts: firewall DMZ firewall capabilities, including logging traffic, network address translation, encryption/decryption, application payload transformation limitations of firewalls Be able to explain basic firewall technologies packet filters session filters application-level proxies circuit level proxies 16
17 Topic 8.4 Firewalls and IDS (cont d) Be able to explain the following basic concepts on IDS Anomaly detection misuse detection (or signature-based detection, rule-based detection) False positive rate False negative rate Host-based IDS Network-based IDS Base rate fallacy 17
CIS 6930/4930 Computer and Network Security. Topic 8.2 Internet Key Management
CIS 6930/4930 Computer and Network Security Topic 8.2 Internet Key Management 1 Key Management Why do we need Internet key management AH and ESP require encryption and authentication keys Process to negotiate
Chapter 32 Security in the Internet: IPSec, SSL/TLS, PGP,
Chapter 32 Security in the Internet: IPSec, SSL/TLS, PGP, VPN, and Firewalls 32.1 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 32.2 Figure 32.1 Common structure
Cryptography and Network Security Chapter 16. Fourth Edition by William Stallings
Cryptography and Network Security Chapter 16 Fourth Edition by William Stallings Chapter 16 IP Security If a secret piece of news is divulged by a spy before the time is ripe, he must be put to death,
IP Security II. Overview
IP Security II Dr. Arjan Durresi Louisiana State University Baton Rouge, LA 70810 Durresi@csc.lsu.Edu These slides are available at: http://www.csc.lsu.edu/~durresi/csc4601-04/ Louisiana State University
Outline. Key Management. Security Principles. Security Principles (Cont d) Escrow Foilage Protection
Outline CSCI 454/554 Computer and Network Security Topic 8.2 Internet Key Management Key Management Security Principles Internet Key Management Manual Exchange SKIP Oakley ISAKMP IKE 2 Key Management Why
Chapter 5: Network Layer Security
Managing and Securing Computer Networks Guy Leduc Mainly based on Network Security - PRIVATE Communication in a PUBLIC World C. Kaufman, R. Pearlman, M. Speciner Pearson Education, 2002. (chapters 17 and
Cryptography and Network Security. Sixth Edition by William Stallings
Cryptography and Network Security Sixth Edition by William Stallings Chapter 20 IP Security If a secret piece of news is divulged by a spy before the time is ripe, he must be put to death, together with
Computer Security 3e. Dieter Gollmann. Security.di.unimi.it/sicurezza1415/ Chapter 16: 1
Computer Security 3e Dieter Gollmann Security.di.unimi.it/sicurezza1415/ Chapter 16: 1 Chapter 16: Communications Security Chapter 16: 2 Agenda Threat model Secure tunnels Protocol design principles IPsec
Lecture 33. Firewalls. Firewall Locations in the Network. Castle and Moat Analogy. Firewall Types. Firewall: Illustration. Security April 15, 2005
Firewalls Lecture 33 Security April 15, 2005 Idea: separate local network from the Internet Trusted hosts and networks Intranet Firewall DMZ Router Demilitarized Zone: publicly accessible servers and networks
INFS 766 Internet Security Protocols. Lectures 7 and 8 IPSEC. Prof. Ravi Sandhu IPSEC ROADMAP
INFS 766 Internet Security Protocols Lectures 7 and 8 IPSEC Prof. Ravi Sandhu IPSEC ROADMAP Security Association IP AH (Authentication Header) Protocol IP ESP (Encapsulating Security Protocol) Authentication
Chapter 6/8. IP Security
Chapter 6/8 IP Security Prof. Bhargavi H Goswami Department of MCA, Sunshine Group of Institutes, Rajkot, Gujarat, India. Mob: +918140099018. Email: bhargavigoswami@gmail.com Topic List 1. IP Security
AIT 682: Network and Systems Security
AIT 682: Network and Systems Security Topic 7. Trusted Intermediaries Instructor: Dr. Kun Sun Trusted Intermediaries Problem: authentication for large networks Solution #1 Key Distribution Center (KDC)
Dr. Jinyuan (Stella) Sun Dept. of Electrical Engineering and Computer Science University of Tennessee Fall 2010
Dr. Jinyuan (Stella) Sun Dept. of Electrical Engineering and Computer Science University of Tennessee Fall 2010 1 Photuris and SKIP PHASE 1 IKE PHASE 2 IKE How is SA established? How do parties negotiate
Chapter 6. IP Security. Dr. BHARGAVI H. GOSWAMI Department of Computer Science Christ University
Chapter 6 IP Security Dr. BHARGAVI H. GOSWAMI Department of Computer Science Christ University +91 9426669020 bhargavigoswami@gmail.com Topic List 1. IP Security Overview 2. IP Security Architecture 3.
INF3510 Information Security University of Oslo Spring Lecture 9 Communication Security. Audun Jøsang
INF3510 Information Security University of Oslo Spring 2011 Lecture 9 Communication Security Audun Jøsang Outline Network security concepts Communication security Perimeter security Protocol architecture
IPsec (AH, ESP), IKE. Guevara Noubir CSG254: Network Security
IPsec (AH, ESP), IKE Guevara Noubir noubir@ccs.neu.edu Securing Networks Control/Management (configuration) Applications Layer telnet/ftp: ssh, http: https, mail: PGP (SSL/TLS) Transport Layer (TCP) (IPSec,
Application Layer. Presentation Layer. Session Layer. Transport Layer. Network Layer. Data Link Layer. Physical Layer
ISO/OSI Model SSL: Security at Transport Layer Application Layer Peer-to-peer Application Layer Network Security Assurance Presentation Layer Session Layer Transport Layer Presentation Layer Session Layer
Int ernet w orking. Internet Security. Literature: Forouzan: TCP/IP Protocol Suite : Ch 28
Int ernet w orking Internet Security Literature: Forouzan: TCP/IP Protocol Suite : Ch 28 Internet Security Internet security is difficult Internet protocols were not originally designed for security The
Computer Security 3e. Dieter Gollmann. Security.di.unimi.it/sicurezza1516/ Chapter 16: 1
Computer Security 3e Dieter Gollmann Security.di.unimi.it/sicurezza1516/ Chapter 16: 1 Chapter 16: Communications Security Chapter 16: 2 Agenda Threat model Secure tunnels Protocol design principles IPsec
COSC 301 Network Management. Lecture 15: SSL/TLS and HTTPS
COSC 301 Network Management Lecture 15: SSL/TLS and HTTPS Zhiyi Huang Computer Science, University of Otago COSC301 Lecture 15: SSL/TLS and HTTPS 1 Today s Focus WWW WWW How to secure web applications?
Princess Nora Bint Abdulrahman University College of computer and information sciences Networks department Networks Security (NET 536)
Princess Nora Bint Abdulrahman University College of computer and information sciences Networks department Networks Security (NET 536) Prepared by Dr. Samia Chelloug E-mail: samia_chelloug@yahoo.fr Content
Transport Level Security
2 Transport Level Security : Security and Cryptography Sirindhorn International Institute of Technology Thammasat University Prepared by Steven Gordon on 28 October 2013 css322y13s2l12, Steve/Courses/2013/s2/css322/lectures/transport.tex,
VPN Auto Provisioning
VPN Auto Provisioning You can configure various types of IPsec VPN policies, such as site-to-site policies, including GroupVPN, and route-based policies. For specific details on the setting for these kinds
VPN, IPsec and TLS. stole slides from Merike Kaeo apricot2017 1
VPN, IPsec and TLS stole slides from Merike Kaeo apricot2017 1 Virtual Private Network Overlay Network a VPN is built on top of a public network (Internet)
Network Security: IPsec. Tuomas Aura T Network security Aalto University, Nov-Dec 2014
Network Security: IPsec Tuomas Aura T-110.5241 Network security Aalto University, Nov-Dec 2014 2 IPsec: Architecture and protocols Internet protocol security (IPsec) Network-layer security protocol Protects
Security Engineering. Lecture 16 Network Security Fabio Massacci (with the courtesy of W. Stallings)
Security Lecture 16 Network Security Fabio Massacci (with the courtesy of W. Stallings) Lecture Outline Network Attacks Attive Attacks Passive Attacks TCP Attacks Contermeasures IPSec SSL/TLS Firewalls
Virtual Private Networks
EN-2000 Reference Manual Document 8 Virtual Private Networks O ne of the principal features of routers is their support of virtual private networks (VPNs). This document discusses transmission security,
Chapter 11 The IPSec Security Architecture for the Internet Protocol
Chapter 11 The IPSec Security Architecture for the Internet Protocol IPSec Architecture Security Associations AH / ESP IKE [NetSec], WS 2008/2009 11.1 The TCP/IP Protocol Suite Application Protocol Internet
The IPsec protocols. Overview
The IPsec protocols -- components and services -- modes of operation -- Security Associations -- Authenticated Header (AH) -- Encapsulated Security Payload () (c) Levente Buttyán (buttyan@crysys.hu) Overview
IKE and Load Balancing
Configure IKE, page 1 Configure IPsec, page 9 Load Balancing, page 22 Configure IKE IKE, also called ISAKMP, is the negotiation protocol that lets two hosts agree on how to build an IPsec security association.
Transport Layer Security
CEN585 Computer and Network Security Transport Layer Security Dr. Mostafa Dahshan Department of Computer Engineering College of Computer and Information Sciences King Saud University mdahshan@ksu.edu.sa
EE 418 Network Security and Cryptography Lecture #18
EE 418 Network Security and Cryptography Lecture #18 December 6, 2016 Public Key Infrastructure. Authentication. Internet Security Lecture notes prepared by Professor Radha Poovendran. Tamara Bonaci Department
IPSec Network Applications
This chapter describes several methods for implementing IPSec within various network applications. Topics discussed in this chapter include: Implementing IPSec for PDN Access Applications, page 1 Implementing
Lecture 9: Network Level Security IPSec
Lecture 9: Network Level Security IPSec CS 336/536: Computer Network Security Fall 2015 Nitesh Saxena Adopted from previous lecture by Keith Ross, and Tony Barnard HW3 being graded Course Admin HW4 will
CIS 6930/4930 Computer and Network Security. Topic 7. Trusted Intermediaries
CIS 6930/4930 Computer and Network Security Topic 7. Trusted Intermediaries 1 Trusted Intermediaries Problem: authentication for large networks Solution #1 Key Distribution Center (KDC) Representative
CSC 482/582: Computer Security. Security Protocols
Security Protocols Topics 1. Basic Concepts of Cryptography 2. Security Protocols 3. Authentication Protocols 4. Key Exchange Protocols 5. Kerberos 6. Public Key Infrastructure Encryption and Decryption
Chapter 4: Securing TCP connections
Managing and Securing Computer Networks Guy Leduc Chapter 5: Securing TCP connections Computer Networking: A Top Down Approach, 6 th edition. Jim Kurose, Keith Ross Addison-Wesley, March 2012. (section
E-commerce security: SSL/TLS, SET and others. 4.1
E-commerce security: SSL/TLS, SET and others. 4.1 1 Electronic payment systems Purpose: facilitate the safe and secure transfer of monetary value electronically between multiple parties Participating parties:
The EN-4000 in Virtual Private Networks
EN-4000 Reference Manual Document 8 The EN-4000 in Virtual Private Networks O ne of the principal features of routers is their support of virtual private networks (VPNs). This document discusses transmission
A Technology Brief on SSL/TLS Traffic
A Technology Brief on SSL/TLS Traffic This document provides an overview of SSL/TLS technology and offers examples of how Symantec solutions can help manage the increasing SSL traffic within enterprise
Overview of the IPsec Features
CHAPTER 2 This chapter provides an overview of the IPsec features of the VSPA. This chapter includes the following sections: Overview of Basic IPsec and IKE Configuration Concepts, page 2-1 Configuring
Security Handshake Pitfalls
Hello Challenge R f(k, R f(k, R Problems: 1. Authentication is not mutual only authenticates Anyone can send the challenge R. f(k, R Problems: 1. Authentication is not mutual only authenticates Anyone
BCA III Network security and Cryptography Examination-2016 Model Paper 1
Time: 3hrs BCA III Network security and Cryptography Examination-2016 Model Paper 1 M.M:50 The question paper contains 40 multiple choice questions with four choices and student will have to pick the correct
ISACA CISA. ISACA CISA ( Certified Information Systems Auditor ) Download Full Version :
ISACA CISA ISACA CISA ( Certified Information Systems Auditor ) Download Full Version : http://killexams.com/pass4sure/exam-detail/cisa QUESTION: 390 Applying a digital signature to data traveling in a
Time Synchronization Security using IPsec and MACsec
Time Synchronization using IPsec and MACsec Appeared in ISPCS 2011 Tal Mizrahi Israel ing Seminar May 2012 Time Synchronization Time synchronization is used for various applications. Securing the time
06/02/ Local & Metropolitan Area Networks. 0. Overview. Terminology ACOE322. Lecture 8 Network Security
1 Local & Metropolitan Area Networks ACOE322 Lecture 8 Network Security Dr. L. Christofi 1 0. Overview As the knowledge of computer networking and protocols has become more widespread, so the threat of
IPSec Guide. ISAKMP & IKE Formats
http://www.tech-invite.com IPSec Guide This document illustrates message formats. These formats result from ISAKMP framework definition (RFC 2408) refined by IPSec DOI (domain of interpretation, defined
Internet Engineering Task Force Mark Baugher(Cisco) Expires: April, 2003 October, 2002
Internet Engineering Task Force Mark Baugher(Cisco) INTERNET-DRAFT Thomas Hardjono (Verisign) Category: Standards Track Hugh Harney (Sparta) Document: draft-ietf-msec-gdoi-06.txt Brian Weis (Cisco) Expires:
Advanced IKEv2 Protocol Jay Young, CCIE - Technical Leader, Services. Session: BRKSEC-3001
Advanced IKEv2 Protocol Jay Young, CCIE - Technical Leader, Services Session: BRKSEC-3001 Agenda IP Security overview IKEv1 Protocol Overview IKEv1 Everything is good, right? IKEv2 Overview Summary IP
IBM i Version 7.2. Security Virtual Private Networking IBM
IBM i Version 7.2 Security Virtual Private Networking IBM IBM i Version 7.2 Security Virtual Private Networking IBM Note Before using this information and the product it supports, read the information
Configuring Internet Key Exchange Security Protocol
Configuring Internet Key Exchange Security Protocol This chapter describes how to configure the Internet Key Exchange (IKE) protocol. IKE is a key management protocol standard that is used in conjunction
Internetworking Lecture 10. Communications and network security
Internetworking Lecture 10 Communications and network security Communication and network security: Threat model Passive attacks: Eavesdropping, Wiretapping, Sniffing, and Traffic analysis Alice Bob Eve
Information and Network Security UNIT-I PLANNING FOR SECURITY
UNIT-I PLANNING FOR SECURITY 1 a Discuss the system specific security policy.how managerial guidelines and technical specification can be used in SysSP? (December 2010) 1 b. Who is responsible for policy
AIT 682: Network and Systems Security
AIT 682: Network and Systems Security Topic 6. Authentication Instructor: Dr. Kun Sun Authentication Authentication is the process of reliably verifying certain information. Examples User authentication
Chapter 10: Cipher Techniques
Chapter 10: Cipher Techniques Some Problems Types of Ciphers Networks Examples Slide #10-1 Overview Problems What can go wrong if you naively use ciphers Cipher types Stream or block ciphers? Networks
Session key establishment protocols
our task is to program a computer which gives answers which are subtly and maliciously wrong at the most inconvenient possible moment. -- Ross Anderson and Roger Needham, Programming Satan s computer Session
Security for VPNs with IPsec Configuration Guide, Cisco IOS XE Release 3S
Security for VPNs with IPsec Configuration Guide, Cisco IOS XE Release 3S Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000
Authentication in real world: Kerberos, SSH and SSL. Zheng Ma Apr 19, 2005
Authentication in real world: Kerberos, SSH and SSL Zheng Ma Apr 19, 2005 Where are we? After learning all the foundation of modern cryptography, we are ready to see some real world applications based
Principles of Information Security, Fourth Edition. Chapter 8 Cryptography
Principles of Information Security, Fourth Edition Chapter 8 Cryptography Learning Objectives Upon completion of this material, you should be able to: Chronicle the most significant events and discoveries
Test 2 Review. (b) Give one significant advantage of a nonce over a timestamp.
Test 2 Review Name Student ID number Notation: {X} Bob Apply Bob s public key to X [Y ] Bob Apply Bob s private key to Y E(P, K) Encrypt P with symmetric key K D(C, K) Decrypt C with symmetric key K h(x)
Lab - Configuring a Site-to-Site VPN Using Cisco IOS and CCP
CCNA Security Lab - Configuring a Site-to-Site VPN Using Cisco IOS and CCP Topology Note: ISR G2 devices use GigabitEthernet interfaces instead of FastEthernet Interfaces. 2015 Cisco and/or its affiliates.
Active Directory in Networks Segmented by Firewalls
Active Directory in Networks Segmented by Firewalls Microsoft Corporation Published: July 2002 Updated: October 2004 Abstract Microsoft Active Directory service domain controllers are increasingly being
IKE. Certificate Group Matching. Policy CHAPTER
CHAPTER 26, also called ISAKMP, is the negotiation protocol that lets two hosts agree on how to build an IPsec security association. To configure the security appliance for virtual private networks, you
CIT 480: Securing Computer Systems
CIT 480: Securing Computer Systems Tunneling and VPNs CIT 480: Securing Computer Systems Slide #1 Topics 1. Tunneling 1. Encapsulation 2. Security 3. SSH 2. Virtual Private Networks 1. Site-to-site 2.
IPSec Site-to-Site VPN (SVTI)
13 CHAPTER Resource Summary for IPSec VPN IKE Crypto Key Ring Resource IKE Keyring Collection Resource IKE Policy Resource IKE Policy Collection Resource IPSec Policy Resource IPSec Policy Collection Resource
Securing Communications
Securing Communications Overview Client/Server Authentication (Kerberos) Remote User Authentication Service (RADIUS) Public-Key Infrastructure (PKI) IP Layer Security (IPSec) Web Access Security (SSL)
Site-to-Site VPN. VPN Basics
A virtual private network (VPN) is a network connection that establishes a secure tunnel between remote peers using a public source, such as the Internet or other network. VPNs use tunnels to encapsulate
ECC Based IKE Protocol Design for Internet Applications
Available online at www.sciencedirect.com Procedia Technology 4 (2012 ) 522 529 C3IT-2012 ECC Based IKE Protocol Design for Internet Applications Sangram Ray a, Rachana Nandan a, G. P. Biswas a a Dept.
Service Managed Gateway TM. How to Configure and Debug Generic Routing Encapsulation (GRE)
Service Managed Gateway TM How to Configure and Debug Generic Routing Encapsulation (GRE) Issue 1.1 Date 14 August 2007 Table of Contents 1 About this document...3 1.1 Scope...3 1.2 Readership...3 2 Introduction...4
10/1/2015. Authentication. Outline. Authentication. Authentication Mechanisms. Authentication Mechanisms. Authentication Mechanisms
Authentication IT443 Network Security Administration Instructor: Bo Sheng Authentication Mechanisms Key Distribution Center and Certificate Authorities Session Key 1 2 Authentication Authentication is
Cryptography SSL/TLS. Network Security Workshop. 3-5 October 2017 Port Moresby, Papua New Guinea
Cryptography SSL/TLS Network Security Workshop 3-5 October 2017 Port Moresby, Papua New Guinea 1 History Secure Sockets Layer was developed by Netscape in 1994 as a protocol which permitted persistent
Configuring VPN Policies
VPN Configuring VPN Policies Configuring Advanced VPN Settings Configuring DHCP Over VPN Configuring L2TP Server Configuring VPN Policies VPN > Settings VPN Overview Configuring VPNs in SonicOS Configuring
Outline. Login w/ Shared Secret: Variant 1. Login With Shared Secret: Variant 2. Login Only Authentication (One Way) Mutual Authentication
Outline Security Handshake Pitfalls (Chapter 11 & 12.2) Login Only Authentication (One Way) Login i w/ Shared Secret One-way Public Key Lamport s Hash Mutual Authentication Shared Secret Public Keys Timestamps
Protocols II. Computer Security Lecture 12. David Aspinall. 17th February School of Informatics University of Edinburgh
Protocols II Computer Security Lecture 12 David Aspinall School of Informatics University of Edinburgh 17th February 2011 Outline Introduction Shared-key Authentication Asymmetric authentication protocols
Network Working Group Request for Comments: Nokia Research Center F. Dupont GET/ENST Bretagne June 2004
Network Working Group Request for Comments: 3776 Category: Standards Track J. Arkko Ericsson V. Devarapalli Nokia Research Center F. Dupont GET/ENST Bretagne June 2004 Using IPsec to Protect Mobile IPv6
Configuring IPsec and ISAKMP
CHAPTER 61 This chapter describes how to configure the IPsec and ISAKMP standards to build Virtual Private Networks. It includes the following sections: Tunneling Overview, page 61-1 IPsec Overview, page
ASA-to-ASA Dynamic-to-Static IKEv1/IPsec Configuration Example
ASA-to-ASA Dynamic-to-Static IKEv1/IPsec Configuration Example Contents Introduction Prerequisites Requirements Components Used Configure Network Diagram ASDM Configuration Central-ASA (Static Peer) Remote-ASA
Key Agreement Schemes
Key Agreement Schemes CSG 252 Lecture 9 November 25, 2008 Riccardo Pucella Key Establishment Problem PK cryptosystems have advantages over SK cryptosystems PKCs do not need a secure channel to establish
Chapter 8 Lab Configuring a Site-to-Site VPN Using Cisco IOS
Chapter 8 Lab Configuring a Site-to-Site VPN Using Cisco IOS Topology Note: ISR G1 devices use FastEthernet interfaces instead of GigabitEthernet interfaces. 2017 Cisco and/or its affiliates. All rights
Protocol Comparisons: OpenSSH, SSL/TLS (AT-TLS), IPSec
Protocol Comparisons: OpenSSH, SSL/TLS (AT-TLS), IPSec Author: Gwen Dente, IBM Gaithersburg, MD Acknowledgments: Alfred Christensen, IBM Erin Farr, IBM Christopher Meyer, IBM Linwood Overby, IBM Richard
Advanced IPSec Algorithms and Protocols
1 Advanced IPSec Algorithms and Protocols Session Saadat Malik Copyright Printed in USA. 2 Agenda Analysis of Baseline IPSec Functionality IKE: IPSec Negotiation Protocol Flow PKI: IPSec Authentication
0/41. Alice Who? Authentication Protocols. Andreas Zeller/Stephan Neuhaus. Lehrstuhl Softwaretechnik Universität des Saarlandes, Saarbrücken
0/41 Alice Who? Authentication Protocols Andreas Zeller/Stephan Neuhaus Lehrstuhl Softwaretechnik Universität des Saarlandes, Saarbrücken The Menu 1/41 Simple Authentication Protocols The Menu 1/41 Simple
Internet Technology. Security
Uni Innsbruck Informatik - 1 Internet Technology Security Michael Welzl michael.welzl@uibk.ac.at DPS NSG Team http://dps.uibk.ac.at dps.uibk.ac.at/nsg Institute of Computer Science University of Innsbruck,
Overview. SSL Cryptography Overview CHAPTER 1
CHAPTER 1 Secure Sockets Layer (SSL) is an application-level protocol that provides encryption technology for the Internet. SSL ensures the secure transmission of data between a client and a server through
Cisco Secure PIX Firewall Advanced (CSPFA)
9E0-571 9E0-571 Cisco Secure PIX Firewall Advanced (CSPFA) Version 3.0-1 - Important Note Please Read Carefully Study Tips This product will provide you questions and answers along with detailed explanations
Secure Sockets Layer (SSL) / Transport Layer Security (TLS)
Secure Sockets Layer (SSL) / Transport Layer Security (TLS) Brad Karp UCL Computer Science CS GZ03 / M030 20 th November 2017 What Problems Do SSL/TLS Solve? Two parties, client and server, not previously
IPsec NAT Transparency
sec NAT Transparency First Published: November 25, 2002 Last Updated: March 1, 2011 The sec NAT Transparency feature introduces support for Security (sec) traffic to travel through Network Address Translation
Security for VPNs with IPsec Configuration Guide, Cisco IOS Release 15M&T
Security for VPNs with IPsec Configuration Guide, Cisco IOS Release 15M&T Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000
Microsoft Privacy Protected Network Access: Virtual Private Networking and Intranet Security
Operating System Microsoft Privacy Protected Network Access: Virtual Private Networking and Intranet Security White Paper Abstract The Microsoft Windows operating system includes technology to secure communications
Virtual Private Networks
Chapter 12 Virtual Private Networks Introduction Business has changed in the last couple of decades. Companies now have to think about having a global presence, global marketing, and logistics. Most of
User Authentication Protocols Week 7
User Authentication Protocols Week 7 CEN-5079: 2.October.2017 1 Announcement Homework 1 is posted on the class webpage Due in 2 weeks 10 points (out of 100) subtracted each late day CEN-5079: 2.October.2017
Acronyms. International Organization for Standardization International Telecommunication Union ITU Telecommunication Standardization Sector
Acronyms 3DES AES AH ANSI CBC CESG CFB CMAC CRT DoS DEA DES DoS DSA DSS ECB ECC ECDSA ESP FIPS IAB IETF IP IPsec ISO ITU ITU-T Triple DES Advanced Encryption Standard Authentication Header American National
Jaringan Komputer (IF8505) Pengamanan jaringan komputer. Cryptography
Jaringan Komputer (IF8505) Pengamanan jaringan komputer Cryptography Introduction to Cryptography Substitution Ciphers Transposition Ciphers One-Time Pads Two Fundamental Cryptographic Principles Intro
show crypto group summary, page 1 show crypto ikev2-ikesa security-associations summary spi, page 2
This chapter includes the command output tables. group summary, page 1 ikev2-ikesa security-associations summary, page 2 ikev2-ikesa security-associations summary spi, page 2 ipsec security-associations,
Agenda. Introduction. Security Protocols Wireless / Mobile Security. Lecture 10. Network Security I
Lecture 10 Network Security I Information and Communications Security (SS 2008) Prof. Dr. Kai Rannenberg T-Mobile Chair for Mobile Business & Multilateral Security Johann Wolfgang Goethe University Frankfurt
Kerberos and Public-Key Infrastructure. Key Points. Trust model. Goal of Kerberos
Kerberos and Public-Key Infrastructure Key Points Kerberos is an authentication service designed for use in a distributed environment. Kerberos makes use of a thrusted third-part authentication service
... Lecture 10. Network Security I. Information & Communication Security. Prof. Dr. Kai Rannenberg
Lecture 10 Network Security I Information & Communication Security (SS 2011) Prof. Dr. Kai Rannenberg T-Mobile Chair of Mobile Business & Multilateral Security Goethe University Frankfurt a. M. Agenda
Windows 2000 Pre-shared IKE Dialup VPN Setup Procedures
Windows 2000 Pre-shared IKE Dialup VPN Setup Procedures Purpose The purpose of this paper is to help give an explanation on how to set up Windows 2000 for preshared IKE VPN. This paper is written for a
Outline. Internet Security Mechanisms. Basic Terms. Example Attacks
Outline AIT 682: Network and Systems Security Topic 8.4 Firewalls and Intrusion Detection Systems (IDS) Firewalls Filtering firewalls Proxy firewalls Intrusion Detection System (IDS) Rule-based IDS Anomaly
User Authentication Protocols
User Authentication Protocols Class 5 Stallings: Ch 15 CIS-5370: 26.September.2016 1 Announcement Homework 1 is due today by end of class CIS-5370: 26.September.2016 2 User Authentication The process of