Certificate Authorities and Public Keys. How they work and 10+ ways to hack them.

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Certificate Authorities and Public Keys. How they work and 10+ ways to hack them."

Transcription

1 Certificate Authorities and Public Keys How they work and 10+ ways to hack them. -- FoxGuard Solutions Version.05 9/2012 1

2 Certificate Use Overview 2

3 Symmetric Key Encryption Internet Reversible 3

4 Asymmetric Key Encryption Internet RSA RSA Reversible 4

5 RSA Algorithm 5

6 Hashing Non-reversible Repeatable Collision Resistant 6

7 Certificates- Additional Details 7

8 Uses of Certificates Code Signing updates Message Signing SSL /TLS https 8

9 Attacks 9

10 Attacks Against RSA RSA 10

11 Legitimate Signing of Malicious Code / Messages 11

12 Obtaining a Legitimate Signature for Someone Else via Social Engineering 12

13 Hacking a Registration Authority 13

14 Hacking the Private Key Owner 14

15 Bypassing Keys e.g. SSL Strip 15

16 Hash Collision Attacks 16

17 Implementation Failures 17

18 Addition of Certificates 18

19 Poor Random Number Generators 19

20 Social Engineering the User 20

21 Foreign Nation Strong Arm of CA 21

22 Frankenstein Style Attacks 22

23 Revocation List Attacks 23

24 Questions 24

Digital Certificates (Public Key Infrastructure) Reshma Afshar Indiana State University

Digital Certificates (Public Key Infrastructure) Reshma Afshar Indiana State University Digital Certificates (Public Key Infrastructure) Reshma Afshar Indiana State University October 2015 1 List of Figures Contents 1 Introduction 1 2 History 2 3 Public Key Infrastructure (PKI) 3 3.1 Certificate

More information

1. a. Define the properties of a one-way hash function. (6 marks)

1. a. Define the properties of a one-way hash function. (6 marks) 1. a. Define the properties of a one-way hash function. (6 marks) A hash function h maps arbitrary length value x to fixed length value y such that: Hard to reverse. Given value y not feasible to find

More information

Public Key Infrastructure (PKI)

Public Key Infrastructure (PKI) Public Key Infrastructure (PKI) In this video you will learn the quite a bit about Public Key Infrastructure and how it is used to authenticate clients and servers. The purpose of Public Key Infrastructure

More information

Using etoken for SSL Web Authentication. SSL V3.0 Overview

Using etoken for SSL Web Authentication. SSL V3.0 Overview Using etoken for SSL Web Authentication Lesson 12 April 2004 etoken Certification Course SSL V3.0 Overview Secure Sockets Layer protocol, version 3.0 Provides communication privacy over the internet. Prevents

More information

How encryption works to provide confidentiality. How hashing works to provide integrity. How digital signatures work to provide authenticity and

How encryption works to provide confidentiality. How hashing works to provide integrity. How digital signatures work to provide authenticity and How encryption works to provide confidentiality. How hashing works to provide integrity. How digital signatures work to provide authenticity and non-repudiation. How to obtain a digital certificate. Installing

More information

Overview of CSS SSL. SSL Cryptography Overview CHAPTER

Overview of CSS SSL. SSL Cryptography Overview CHAPTER CHAPTER 1 Secure Sockets Layer (SSL) is an application-level protocol that provides encryption technology for the Internet, ensuring secure transactions such as the transmission of credit card numbers

More information

Using BroadSAFE TM Technology 07/18/05

Using BroadSAFE TM Technology 07/18/05 Using BroadSAFE TM Technology 07/18/05 Layers of a Security System Security System Data Encryption Key Negotiation Authentication Identity Root Key Once root is compromised, all subsequent layers of security

More information

Lab 7. Answer. Figure 1

Lab 7. Answer. Figure 1 Lab 7 1. For each of the first 8 Ethernet frames, specify the source of the frame (client or server), determine the number of SSL records that are included in the frame, and list the SSL record types that

More information

Chapter 10. Cloud Security Mechanisms

Chapter 10. Cloud Security Mechanisms Chapter 10. Cloud Security Mechanisms 10.1 Encryption 10.2 Hashing 10.3 Digital Signature 10.4 Public Key Infrastructure (PKI) 10.5 Identity and Access Management (IAM) 10.6 Single Sign-On (SSO) 10.7 Cloud-Based

More information

Network Security. Computer Networking Lecture 08. March 19, 2012. HKU SPACE Community College. HKU SPACE CC CN Lecture 08 1/23

Network Security. Computer Networking Lecture 08. March 19, 2012. HKU SPACE Community College. HKU SPACE CC CN Lecture 08 1/23 Network Security Computer Networking Lecture 08 HKU SPACE Community College March 19, 2012 HKU SPACE CC CN Lecture 08 1/23 Outline Introduction Cryptography Algorithms Secret Key Algorithm Message Digest

More information

Digital Signatures. Murat Kantarcioglu. Based on Prof. Li s Slides. Digital Signatures: The Problem

Digital Signatures. Murat Kantarcioglu. Based on Prof. Li s Slides. Digital Signatures: The Problem Digital Signatures Murat Kantarcioglu Based on Prof. Li s Slides Digital Signatures: The Problem Consider the real-life example where a person pays by credit card and signs a bill; the seller verifies

More information

MD5 Considered Harmful Today

MD5 Considered Harmful Today MD5 Considered Harmful Today Creating a rogue CA certificate Alexander Sotirov Marc Stevens Jacob Appelbaum Arjen Lenstra David Molnar Dag Arne Osvik Benne de Weger New York, USA CWI, Netherlands Noisebridge/Tor,

More information

Computer Security. Principles and Practice. Second Edition. Amp Kumar Bhattacharjee. Lawrie Brown. Mick Bauer. William Stailings

Computer Security. Principles and Practice. Second Edition. Amp Kumar Bhattacharjee. Lawrie Brown. Mick Bauer. William Stailings Computer Security Principles and Practice Second Edition William Stailings Lawrie Brown University ofnew South Wales, Australian Defence Force Academy With Contributions by Mick Bauer Security Editor,

More information

PKI Uncovered. Cisco Press. Andre Karamanian Srinivas Tenneti Francois Dessart. 800 East 96th Street. Indianapolis, IN 46240

PKI Uncovered. Cisco Press. Andre Karamanian Srinivas Tenneti Francois Dessart. 800 East 96th Street. Indianapolis, IN 46240 PKI Uncovered Andre Karamanian Srinivas Tenneti Francois Dessart Cisco Press 800 East 96th Street Indianapolis, IN 46240 Contents Introduction XIII Part I Core Concepts Chapter 1 Crypto Refresh 1 Confidentiality,

More information

SSL/TLS: The Ugly Truth

SSL/TLS: The Ugly Truth SSL/TLS: The Ugly Truth Examining the flaws in SSL/TLS protocols, and the use of certificate authorities. Adrian Hayter CNS Hut 3 Team adrian.hayter@cnsuk.co.uk Contents Introduction to SSL/TLS Cryptography

More information

Web Security: Encryption & Authentication

Web Security: Encryption & Authentication Web Security: Encryption & Authentication Arnon Rungsawang fenganr@ku.ac.th Massive Information & Knowledge Engineering Department of Computer Engineering Faculty of Engineering Kasetsart University, Bangkok,

More information

Cisco Trust Anchor Technologies

Cisco Trust Anchor Technologies Data Sheet Cisco Trust Anchor Technologies Overview Cisco Trust Anchor Technologies provide the foundation for trustworthy systems across Cisco. The Cisco Trust Anchor and a Secure Boot check of signed

More information

Dashlane Security Whitepaper

Dashlane Security Whitepaper Dashlane Security Whitepaper November 2014 Protection of User Data in Dashlane Protection of User Data in Dashlane relies on 3 separate secrets: The User Master Password Never stored locally nor remotely.

More information

TLS and SRTP for Skype Connect. Technical Datasheet

TLS and SRTP for Skype Connect. Technical Datasheet TLS and SRTP for Skype Connect Technical Datasheet Copyright Skype Limited 2011 Introducing TLS and SRTP Protocols help protect enterprise communications Skype Connect now provides Transport Layer Security

More information

Network Security Essentials:

Network Security Essentials: Network Security Essentials: Applications and Standards Fifth Edition William Stallings International Editions contributions by B. R. Chandavarkar National Institute of Technology Karnataka, Surathkal

More information

You re FREE Guide SSL. (Secure Sockets Layer) webvisions www.webvisions.com +65 6868 1168 sales@webvisions.com

You re FREE Guide SSL. (Secure Sockets Layer) webvisions www.webvisions.com +65 6868 1168 sales@webvisions.com SSL You re FREE Guide to (Secure Sockets Layer) What is a Digital Certificate? SSL Certificates, also known as public key certificates or Digital Certificates, are essential to secure Internet browsing.

More information

USING ENCRYPTION TO PROTECT SENSITIVE INFORMATION Commonwealth Office of Technology Security Month Seminars October 29, 2013

USING ENCRYPTION TO PROTECT SENSITIVE INFORMATION Commonwealth Office of Technology Security Month Seminars October 29, 2013 USING ENCRYPTION TO PROTECT SENSITIVE INFORMATION Commonwealth Office of Technology Security Month Seminars Alternate Title? Boy, am I surprised. The Entrust guy who has mentioned PKI during every Security

More information

Course Content Summary ITN 262 Network Communication, Security and Authentication (4 Credits)

Course Content Summary ITN 262 Network Communication, Security and Authentication (4 Credits) Page 1 of 5 Course Content Summary ITN 262 Network Communication, Security and Authentication (4 Credits) TNCC Cybersecurity Program web page: http://tncc.edu/programs/cyber-security Course Description:

More information

Cryptography and Network Security Chapter 14. Key Distribution. Key Management and Distribution. Key Distribution Task 4/19/2010

Cryptography and Network Security Chapter 14. Key Distribution. Key Management and Distribution. Key Distribution Task 4/19/2010 Cryptography and Network Security Chapter 14 Fifth Edition by William Stallings Lecture slides by Lawrie Brown Chapter 14 Key Management and Distribution No Singhalese, whether man or woman, would venture

More information

Instructions on TLS/SSL Certificates on Yealink Phones

Instructions on TLS/SSL Certificates on Yealink Phones Instructions on TLS/SSL Certificates on Yealink Phones 1. Summary... 1 2. Encryption, decryption and the keys... 1 3. SSL connection flow... 1 4. The instructions to a certificate... 2 4.1 Phone acts as

More information

Analysis of Secure Key Storage Solutions on Android

Analysis of Secure Key Storage Solutions on Android Analysis of Secure Key Storage Solutions on Android Tim Cooijmans, Joeri de Ruiter, Erik Poll Digital Security, Radboud University Nijmegen Mobile payments App to transfer money or pay in a shop Transaction

More information

Client Server Registration Protocol

Client Server Registration Protocol Client Server Registration Protocol The Client-Server protocol involves these following steps: 1. Login 2. Discovery phase User (Alice or Bob) has K s Server (S) has hash[pw A ].The passwords hashes are

More information

Network Security (2) CPSC 441 Department of Computer Science University of Calgary

Network Security (2) CPSC 441 Department of Computer Science University of Calgary Network Security (2) CPSC 441 Department of Computer Science University of Calgary 1 Friends and enemies: Alice, Bob, Trudy well-known in network security world Bob, Alice (lovers!) want to communicate

More information

Security + Certification (ITSY 1076) Syllabus

Security + Certification (ITSY 1076) Syllabus Security + Certification (ITSY 1076) Syllabus Course: ITSY 1076 Security+ 40 hours Course Description: This course is targeted toward an Information Technology (IT) professional who has networking and

More information

IT Networks & Security CERT Luncheon Series: Cryptography

IT Networks & Security CERT Luncheon Series: Cryptography IT Networks & Security CERT Luncheon Series: Cryptography Presented by Addam Schroll, IT Security & Privacy Analyst 1 Outline History Terms & Definitions Symmetric and Asymmetric Algorithms Hashing PKI

More information

Overview. SSL Cryptography Overview CHAPTER 1

Overview. SSL Cryptography Overview CHAPTER 1 CHAPTER 1 Note The information in this chapter applies to both the ACE module and the ACE appliance unless otherwise noted. The features in this chapter apply to IPv4 and IPv6 unless otherwise noted. Secure

More information

Cryptography and Network Security Chapter 14

Cryptography and Network Security Chapter 14 Cryptography and Network Security Chapter 14 Fifth Edition by William Stallings Lecture slides by Lawrie Brown Chapter 14 Key Management and Distribution No Singhalese, whether man or woman, would venture

More information

OpenADR 2.0 Security. Jim Zuber, CTO QualityLogic, Inc.

OpenADR 2.0 Security. Jim Zuber, CTO QualityLogic, Inc. OpenADR 2.0 Security Jim Zuber, CTO QualityLogic, Inc. Security Overview Client and server x.509v3 certificates TLS 1.2 with SHA256 ECC or RSA cipher suites TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256

More information

DRAFT Standard Statement Encryption

DRAFT Standard Statement Encryption DRAFT Standard Statement Encryption Title: Encryption Standard Document Number: SS-70-006 Effective Date: x/x/2010 Published by: Department of Information Systems 1. Purpose Sensitive information held

More information

Introduction to Cryptography CS 355

Introduction to Cryptography CS 355 Introduction to Cryptography CS 355 Lecture 30 Digital Signatures CS 355 Fall 2005 / Lecture 30 1 Announcements Wednesday s lecture cancelled Friday will be guest lecture by Prof. Cristina Nita- Rotaru

More information

Chapter 17. Transport-Level Security

Chapter 17. Transport-Level Security Chapter 17 Transport-Level Security Web Security Considerations The World Wide Web is fundamentally a client/server application running over the Internet and TCP/IP intranets The following characteristics

More information

Research Article. Research of network payment system based on multi-factor authentication

Research Article. Research of network payment system based on multi-factor authentication Available online www.jocpr.com Journal of Chemical and Pharmaceutical Research, 2014, 6(7):437-441 Research Article ISSN : 0975-7384 CODEN(USA) : JCPRC5 Research of network payment system based on multi-factor

More information

Key Management Interoperability Protocol (KMIP)

Key Management Interoperability Protocol (KMIP) (KMIP) Addressing the Need for Standardization in Enterprise Key Management Version 1.0, May 20, 2009 Copyright 2009 by the Organization for the Advancement of Structured Information Standards (OASIS).

More information

Department of Computer & Information Sciences. CSCI-445: Computer and Network Security Syllabus

Department of Computer & Information Sciences. CSCI-445: Computer and Network Security Syllabus Department of Computer & Information Sciences CSCI-445: Computer and Network Security Syllabus Course Description This course provides detailed, in depth overview of pressing network security problems

More information

Novell ichain Guide to Installing Root Certificates, Generating CSR and Installing SSL Certificate

Novell ichain Guide to Installing Root Certificates, Generating CSR and Installing SSL Certificate Novell ichain Guide to Installing Root Certificates, Generating CSR and Installing SSL Certificate Copyright. All rights reserved. Trustis Limited Building 273 New Greenham Park Greenham Common Thatcham

More information

Lukasz Pater CMMS Administrator and Developer

Lukasz Pater CMMS Administrator and Developer Lukasz Pater CMMS Administrator and Developer EDMS 1373428 Agenda Introduction Why do we need asymmetric ciphers? One-way functions RSA Cipher Message Integrity Examples Secure Socket Layer Single Sign

More information

Security. Contents. S-72.3240 Wireless Personal, Local, Metropolitan, and Wide Area Networks 1

Security. Contents. S-72.3240 Wireless Personal, Local, Metropolitan, and Wide Area Networks 1 Contents Security requirements Public key cryptography Key agreement/transport schemes Man-in-the-middle attack vulnerability Encryption. digital signature, hash, certification Complete security solutions

More information

Certificates. Noah Zani, Tim Strasser, Andrés Baumeler

Certificates. Noah Zani, Tim Strasser, Andrés Baumeler Certificates Noah Zani, Tim Strasser, Andrés Baumeler Overview Motivation Introduction Public Key Infrastructure (PKI) Economic Aspects Motivation Need for secure, trusted communication Growing certificate

More information

Cryptosystems. Bob wants to send a message M to Alice. Symmetric ciphers: Bob and Alice both share a secret key, K.

Cryptosystems. Bob wants to send a message M to Alice. Symmetric ciphers: Bob and Alice both share a secret key, K. Cryptosystems Bob wants to send a message M to Alice. Symmetric ciphers: Bob and Alice both share a secret key, K. C= E(M, K), Bob sends C Alice receives C, M=D(C,K) Use the same key to decrypt. Public

More information

Savitribai Phule Pune University

Savitribai Phule Pune University Savitribai Phule Pune University Centre for Information and Network Security Course: Introduction to Cyber Security / Information Security Module : Pre-requisites in Information and Network Security Chapter

More information

Secure Sockets Layer (SSL ) / Transport Layer Security (TLS) Network Security Products S31213

Secure Sockets Layer (SSL ) / Transport Layer Security (TLS) Network Security Products S31213 Secure Sockets Layer (SSL ) / Transport Layer Security (TLS) Network Security Products S31213 UNCLASSIFIED Example http ://www. greatstuf f. com Wants credit card number ^ Look at lock on browser Use https

More information

Network Security. Security Attacks. Normal flow: Interruption: 孫 宏 民 hmsun@cs.nthu.edu.tw Phone: 03-5742968 國 立 清 華 大 學 資 訊 工 程 系 資 訊 安 全 實 驗 室

Network Security. Security Attacks. Normal flow: Interruption: 孫 宏 民 hmsun@cs.nthu.edu.tw Phone: 03-5742968 國 立 清 華 大 學 資 訊 工 程 系 資 訊 安 全 實 驗 室 Network Security 孫 宏 民 hmsun@cs.nthu.edu.tw Phone: 03-5742968 國 立 清 華 大 學 資 訊 工 程 系 資 訊 安 全 實 驗 室 Security Attacks Normal flow: sender receiver Interruption: Information source Information destination

More information

Announcement. Final exam: Wed, June 9, 9:30-11:18 Scope: materials after RSA (but you need to know RSA) Open books, open notes. Calculators allowed.

Announcement. Final exam: Wed, June 9, 9:30-11:18 Scope: materials after RSA (but you need to know RSA) Open books, open notes. Calculators allowed. Announcement Final exam: Wed, June 9, 9:30-11:18 Scope: materials after RSA (but you need to know RSA) Open books, open notes. Calculators allowed. 1 We have learned Symmetric encryption: DES, 3DES, AES,

More information

Curran, K. Tutorials. Independent study (including assessment) N/A

Curran, K. Tutorials. Independent study (including assessment) N/A MODULE TITLE: MODULE CODE: Systems Security COM535 YEAR OF REVISION: 2013/14 MODULE LEVEL: 6 CREDIT POINTS: 20 MODULE STATUS: SEMESTER: 1 LOCATION: E-LEARNING: PREREQUISITE(S): CO-REQUISITE(S): MODULE

More information

TLS/SSL in distributed systems. Eugen Babinciuc

TLS/SSL in distributed systems. Eugen Babinciuc TLS/SSL in distributed systems Eugen Babinciuc Contents 1. Introduction to TLS/SSL 2. A quick review of cryptography 3. TLS/SSL in distributed systems 4. Conclusions Introduction to TLS/SSL TLS/SSL History

More information

Securing Service Access with Digital Certificates

Securing Service Access with Digital Certificates Securing Service Access with Digital Certificates Jovana Palibrk, AMRES NA3 T2, Tbilisi, December 2013. Agenda Theory Cryptographic Protocols and Techniques Public Key Infrastructure TERENA Certificate

More information

SWFP: Secure Web Feed Protocol

SWFP: Secure Web Feed Protocol SWFP: Secure Web Feed Protocol Frédérick Giasson fred [at] fgiasson.com Abstract SWFP ensures the secure broadcasting of web feeds content over a local network or the Internet. The protocol is built to

More information

Network Security. Gaurav Naik Gus Anderson. College of Engineering. Drexel University, Philadelphia, PA. Drexel University. College of Engineering

Network Security. Gaurav Naik Gus Anderson. College of Engineering. Drexel University, Philadelphia, PA. Drexel University. College of Engineering Network Security Gaurav Naik Gus Anderson, Philadelphia, PA Lectures on Network Security Feb 12 (Today!): Public Key Crypto, Hash Functions, Digital Signatures, and the Public Key Infrastructure Feb 14:

More information

Web Payment Security. A discussion of methods providing secure communication on the Internet. Zhao Huang Shahid Kahn

Web Payment Security. A discussion of methods providing secure communication on the Internet. Zhao Huang Shahid Kahn Web Payment Security A discussion of methods providing secure communication on the Internet Group Members: Peter Heighton Zhao Huang Shahid Kahn 1. Introduction Within this report the methods taken to

More information

Introduction to Network Security Key Management and Distribution

Introduction to Network Security Key Management and Distribution Introduction to Network Security Key Management and Distribution Egemen K. Çetinkaya Department of Electrical & Computer Engineering Missouri University of Science and Technology cetinkayae@mst.edu http://web.mst.edu/~cetinkayae/teaching/cpe5420fall2015

More information

3.2: Transport Layer: SSL/TLS Secure Socket Layer (SSL) Transport Layer Security (TLS) Protocol

3.2: Transport Layer: SSL/TLS Secure Socket Layer (SSL) Transport Layer Security (TLS) Protocol Chapter 2: Security Techniques Background Chapter 3: Security on Network and Transport Layer Network Layer: IPSec Transport Layer: SSL/TLS Chapter 4: Security on the Application Layer Chapter 5: Security

More information

Internet Programming. Security

Internet Programming. Security Internet Programming Security Introduction Security Issues in Internet Applications A distributed application can run inside a LAN Only a few users have access to the application Network infrastructures

More information

Introduction to Cryptography

Introduction to Cryptography Introduction to Cryptography Part 3: real world applications Jean-Sébastien Coron January 2007 Public-key encryption BOB ALICE Insecure M E C C D channel M Alice s public-key Alice s private-key Authentication

More information

Overview. SSL Cryptography Overview CHAPTER 1

Overview. SSL Cryptography Overview CHAPTER 1 CHAPTER 1 Secure Sockets Layer (SSL) is an application-layer protocol that provides encryption technology for the Internet. SSL ensures the secure transmission of data between a client and a server through

More information

Bugzilla ID: Bugzilla Summary:

Bugzilla ID: Bugzilla Summary: Bugzilla ID: Bugzilla Summary: CAs wishing to have their certificates included in Mozilla products must 1) Comply with the requirements of the Mozilla CA certificate policy (http://www.mozilla.org/projects/security/certs/policy/)

More information

CS 161 Computer Security Spring 2010 Paxson/Wagner MT2

CS 161 Computer Security Spring 2010 Paxson/Wagner MT2 CS 161 Computer Security Spring 2010 Paxson/Wagner MT2 PRINT your name:, (last) SIGN your name: (first) PRINT your class account login: cs161- Your T s name: Your section time: Name of the person sitting

More information

GT 6.0 GSI C Security: Key Concepts

GT 6.0 GSI C Security: Key Concepts GT 6.0 GSI C Security: Key Concepts GT 6.0 GSI C Security: Key Concepts Overview GSI uses public key cryptography (also known as asymmetric cryptography) as the basis for its functionality. Many of the

More information

Encryption, Data Integrity, Digital Certificates, and SSL. Developed by. Jerry Scott. SSL Primer-1-1

Encryption, Data Integrity, Digital Certificates, and SSL. Developed by. Jerry Scott. SSL Primer-1-1 Encryption, Data Integrity, Digital Certificates, and SSL Developed by Jerry Scott 2002 SSL Primer-1-1 Ideas Behind Encryption When information is transmitted across intranets or the Internet, others can

More information

Certificates and network security

Certificates and network security Certificates and network security Tuomas Aura CSE-C3400 Information security Aalto University, autumn 2014 Outline X.509 certificates and PKI Network security basics: threats and goals Secure socket layer

More information

to hide away details from prying eyes. Pretty Good Privacy (PGP) utilizes many

to hide away details from prying eyes. Pretty Good Privacy (PGP) utilizes many In the world of secure email, there are many options from which to choose from to hide away details from prying eyes. Pretty Good Privacy (PGP) utilizes many cryptographical concepts to achieve a supposedly

More information

Secure Socket Layer. Introduction Overview of SSL What SSL is Useful For

Secure Socket Layer. Introduction Overview of SSL What SSL is Useful For Secure Socket Layer Secure Socket Layer Introduction Overview of SSL What SSL is Useful For Introduction Secure Socket Layer (SSL) Industry-standard method for protecting web communications. - Data encryption

More information

Properties of Secure Network Communication

Properties of Secure Network Communication Properties of Secure Network Communication Secrecy: Only the sender and intended receiver should be able to understand the contents of the transmitted message. Because eavesdroppers may intercept the message,

More information

Proto Balance SSL TLS Off-Loading, Load Balancing. User Manual - SSL. http://www.protonet.co.za/

Proto Balance SSL TLS Off-Loading, Load Balancing. User Manual - SSL. http://www.protonet.co.za/ Proto Balance SSL TLS Off-Loading, Load Balancing http://www.protonet.co.za/ User Manual - SSL Copyright c 2003-2010 Shine The Way 238 CC. All rights reserved. March 13, 2010 Contents 1. Introduction........................................................................

More information

ITL BULLETIN FOR JULY 2012. Preparing for and Responding to Certification Authority Compromise and Fraudulent Certificate Issuance

ITL BULLETIN FOR JULY 2012. Preparing for and Responding to Certification Authority Compromise and Fraudulent Certificate Issuance ITL BULLETIN FOR JULY 2012 Preparing for and Responding to Certification Authority Compromise and Fraudulent Certificate Issuance Paul Turner, Venafi William Polk, Computer Security Division, Information

More information

Secure Client Applications

Secure Client Applications Secure Client Applications Networking Sirindhorn International Institute of Technology Thammasat University Prepared by Steven Gordon on 26 June 2014 Common/Reports/secure-client-apps.tex, r900 1/26 Acronyms

More information

CIS 6930 Emerging Topics in Network Security. Topic 2. Network Security Primitives

CIS 6930 Emerging Topics in Network Security. Topic 2. Network Security Primitives CIS 6930 Emerging Topics in Network Security Topic 2. Network Security Primitives 1 Outline Absolute basics Encryption/Decryption; Digital signatures; D-H key exchange; Hash functions; Application of hash

More information

Why Security Matters. Why Security Matters. 00 Overview 03 Sept 2015. CSCD27 Computer and Network Security. CSCD27 Computer and Network Security 1

Why Security Matters. Why Security Matters. 00 Overview 03 Sept 2015. CSCD27 Computer and Network Security. CSCD27 Computer and Network Security 1 CSCD27 Computer and Network Security Instructor: Alan Rosselet Office: IC-494 E-mail: rosselet @ utsc utoronto ca Web: http://www.utsc.utoronto.ca/~rosselet/cscd27/ 00 Overview CSCD27 Computer and Network

More information

Soran University Faculty of Science and Engineering Computer Science Department Information Security Module Specification

Soran University Faculty of Science and Engineering Computer Science Department Information Security Module Specification 1. Module Title Information Security 2. Module Code: CS403INS 3. Module Level - Forth Stage 4. Module Leader Safwan M. 5. Teaching Semester 7 and 8 Soran University Faculty of Science and Engineering Computer

More information

Systematization of Knowledge Lessons Learned From SSL/TLS Attacks 20.08.2013

Systematization of Knowledge Lessons Learned From SSL/TLS Attacks 20.08.2013 Systematization of Knowledge Lessons Learned From SSL/TLS Attacks 20.08.2013 christopher.meyer@rub.de Source: http://www.digicert.com Source: http://www.digicert.com Source: http://www.digicert.com What

More information

Midterm 2 exam solutions. Please do not read or discuss these solutions in the exam room while others are still taking the exam.

Midterm 2 exam solutions. Please do not read or discuss these solutions in the exam room while others are still taking the exam. CS 161 Computer Security Spring 2010 Paxson/Wagner MT2 Solns Midterm 2 exam solutions Please do not read or discuss these solutions in the exam room while others are still taking the exam. CS 161, Spring

More information

AN IMPLEMENTATION OF HYBRID ENCRYPTION-DECRYPTION (RSA WITH AES AND SHA256) FOR USE IN DATA EXCHANGE BETWEEN CLIENT APPLICATIONS AND WEB SERVICES

AN IMPLEMENTATION OF HYBRID ENCRYPTION-DECRYPTION (RSA WITH AES AND SHA256) FOR USE IN DATA EXCHANGE BETWEEN CLIENT APPLICATIONS AND WEB SERVICES HYBRID RSA-AES ENCRYPTION FOR WEB SERVICES AN IMPLEMENTATION OF HYBRID ENCRYPTION-DECRYPTION (RSA WITH AES AND SHA256) FOR USE IN DATA EXCHANGE BETWEEN CLIENT APPLICATIONS AND WEB SERVICES Kalyani Ganesh

More information

, ) I Transport Layer Security

, ) I Transport Layer Security Secure Sockets Layer (SSL, ) I Transport Layer Security _ + (TLS) Network Security Products S31213 UNCLASSIFIED Location of SSL -L Protocols TCP Ethernet IP SSL Header Encrypted SSL data= HTTP " Independent

More information

Installing your Digital Certificate & Using on MS Out Look 2007.

Installing your Digital Certificate & Using on MS Out Look 2007. Installing your Digital Certificate & Using on MS Out Look 2007. Note: This technical paper is only to guide you the steps to follow on how to configure and use digital signatures. Therefore Certificate

More information

Lecture 9: Application of Cryptography

Lecture 9: Application of Cryptography Lecture topics Cryptography basics Using SSL to secure communication links in J2EE programs Programmatic use of cryptography in Java Cryptography basics Encryption Transformation of data into a form that

More information

Criteria for web application security check. Version 2015.1

Criteria for web application security check. Version 2015.1 Criteria for web application security check Version 2015.1 i Content Introduction... iii ISC- P- 001 ISC- P- 001.1 ISC- P- 001.2 ISC- P- 001.3 ISC- P- 001.4 ISC- P- 001.5 ISC- P- 001.6 ISC- P- 001.7 ISC-

More information

HTTPS: Transport-Layer Security (TLS), aka Secure Sockets Layer (SSL)

HTTPS: Transport-Layer Security (TLS), aka Secure Sockets Layer (SSL) CSCD27 Computer and Network Security HTTPS: Transport-Layer Security (TLS), aka Secure Sockets Layer (SSL) 11 SSL CSCD27 Computer and Network Security 1 CSCD27F Computer and Network Security 1 TLS (Transport-Layer

More information

Common security requirements Basic security tools. Example. Secret-key cryptography Public-key cryptography. Online shopping with Amazon

Common security requirements Basic security tools. Example. Secret-key cryptography Public-key cryptography. Online shopping with Amazon 1 Common security requirements Basic security tools Secret-key cryptography Public-key cryptography Example Online shopping with Amazon 2 Alice credit card # is xxxx Internet What could the hacker possibly

More information

SSL A discussion of the Secure Socket Layer

SSL A discussion of the Secure Socket Layer www.harmonysecurity.com info@harmonysecurity.com SSL A discussion of the Secure Socket Layer By Stephen Fewer Contents 1 Introduction 2 2 Encryption Techniques 3 3 Protocol Overview 3 3.1 The SSL Record

More information

Guide to Data Field Encryption

Guide to Data Field Encryption Guide to Data Field Encryption Contents Introduction 2 Common Concepts and Glossary 3 Encryption 3 Data Field Encryption 3 Cryptography 3 Keys and Key Management 5 Secure Cryptographic Device 7 Considerations

More information

CS615 - Aspects of System Administration

CS615 - Aspects of System Administration CS615 - Aspects of System Administration Slide 1 CS615 - Aspects of System Administration SSL, SSH Department of Computer Science Stevens Institute of Technology Jan Schaumann jschauma@stevens.edu http://www.cs.stevens.edu/~jschauma/615/

More information

Chapter 15: Security

Chapter 15: Security Chapter 15: Security Chapter 15: Security The Security Problem Program Threats System and Network Threats Cryptography as a Security Tool User Authentication Implementing Security Defenses Firewalling

More information

qwertyuiopasdfghjklzxcvbnmqwertyui opasdfghjklzxcvbnmqwertyuiopasdfgh jklzxcvbnmqwertyuiopasdfghjklzxcvb

qwertyuiopasdfghjklzxcvbnmqwertyui opasdfghjklzxcvbnmqwertyuiopasdfgh jklzxcvbnmqwertyuiopasdfghjklzxcvb qwertyuiopasdfghjklzxcvbnmqwertyui opasdfghjklzxcvbnmqwertyuiopasdfgh jklzxcvbnmqwertyuiopasdfghjklzxcvb The e-cheque System nmqwertyuiopasdfghjklzxcvbnmqwer System Specification tyuiopasdfghjklzxcvbnmqwertyuiopas

More information

The Information Security Problem

The Information Security Problem Chapter 10 Objectives Describe the major concepts and terminology of EC security. Understand phishing and its relationship to financial crimes. Describe the information assurance security principles. Identify

More information

What Are Certificates?

What Are Certificates? The Essentials Series: Code-Signing Certificates What Are Certificates? sponsored by by Don Jones W hat Are Certificates?... 1 Digital Certificates and Asymmetric Encryption... 1 Certificates as a Form

More information

SSL DOES NOT MEAN SOL What if you don t have the server keys?

SSL DOES NOT MEAN SOL What if you don t have the server keys? SSL DOES NOT MEAN SOL What if you don t have the server keys? J. Scott Haugdahl Architect, Blue Cross Blue Shield MN Robert Bullen Systems Engineer, Blue Cross Blue Shield MN Setting Expectations This

More information

APWG. (n.d.). Unifying the global response to cybecrime. Retrieved from http://www.antiphishing.org/

APWG. (n.d.). Unifying the global response to cybecrime. Retrieved from http://www.antiphishing.org/ DB1 Phishing attacks, usually implemented through HTML enabled e-mails, are becoming more common and more sophisticated. As a network manager, how would you go about protecting your users from a phishing

More information

OFFICE OF THE CONTROLLER OF CERTIFICATION AUTHORITIES TECHNICAL REQUIREMENTS FOR AUDIT OF CERTIFICATION AUTHORITIES

OFFICE OF THE CONTROLLER OF CERTIFICATION AUTHORITIES TECHNICAL REQUIREMENTS FOR AUDIT OF CERTIFICATION AUTHORITIES OFFICE OF THE CONTROLLER OF CERTIFICATION AUTHORITIES TECHNICAL REQUIREMENTS FOR AUDIT OF CERTIFICATION AUTHORITIES Table of contents 1.0 SOFTWARE 1 2.0 HARDWARE 2 3.0 TECHNICAL COMPONENTS 2 3.1 KEY MANAGEMENT

More information

mod_ssl Cryptographic Techniques

mod_ssl Cryptographic Techniques mod_ssl Overview Reference The nice thing about standards is that there are so many to choose from. And if you really don t like all the standards you just have to wait another year until the one arises

More information

Netzwerksicherheit Übung 6 SSL/TLS, OpenSSL

Netzwerksicherheit Übung 6 SSL/TLS, OpenSSL Netzwerksicherheit Übung 6 SSL/TLS, Thomas Schneider Computer Networks and Communication Systems Dept. of Computer Sciences, University of Erlangen-Nuremberg, Germany 10. 14.12.2007 Thomas Schneider: Netzwerksicherheit

More information

Introduction...3 Terms in this Document...3 Conditions for Secure Operation...3 Requirements...3 Key Generation Requirements...

Introduction...3 Terms in this Document...3 Conditions for Secure Operation...3 Requirements...3 Key Generation Requirements... Hush Encryption Engine White Paper Introduction...3 Terms in this Document...3 Conditions for Secure Operation...3 Requirements...3 Key Generation Requirements...4 Passphrase Requirements...4 Data Requirements...4

More information

DKIM Enabled Two Factor Authenticated Secure Mail Client

DKIM Enabled Two Factor Authenticated Secure Mail Client DKIM Enabled Two Factor Authenticated Secure Mail Client Saritha P, Nitty Sarah Alex M.Tech Student[Software Engineering], New Horizon College of Engineering, Bangalore, India Sr. Asst Prof, Department

More information

VICTORIA UNIVERSITY OF WELLINGTON Te Whare Wānanga o te Ūpoko o te Ika a Māui

VICTORIA UNIVERSITY OF WELLINGTON Te Whare Wānanga o te Ūpoko o te Ika a Māui VICTORIA UNIVERSITY OF WELLINGTON Te Whare Wānanga o te Ūpoko o te Ika a Māui School of Engineering and Computer Science Te Kura Mātai Pūkaha, Pūrorohiko PO Box 600 Wellington New Zealand Tel: +64 4 463

More information

Practice Questions. CS161 Computer Security, Fall 2008

Practice Questions. CS161 Computer Security, Fall 2008 Practice Questions CS161 Computer Security, Fall 2008 Name Email address Score % / 100 % Please do not forget to fill up your name, email in the box in the midterm exam you can skip this here. These practice

More information

Network Security #10. Overview. Encryption Authentication Message integrity Key distribution & Certificates Secure Socket Layer (SSL) IPsec

Network Security #10. Overview. Encryption Authentication Message integrity Key distribution & Certificates Secure Socket Layer (SSL) IPsec Network Security #10 Parts modified from Computer Networking: A Top Down Approach Featuring the Internet, 2nd edition. Jim Kurose, Keith Ross, Addison-Wesley, 2002. 1 Overview Encryption Authentication

More information

Outline. CSc 466/566. Computer Security. 8 : Cryptography Digital Signatures. Digital Signatures. Digital Signatures... Christian Collberg

Outline. CSc 466/566. Computer Security. 8 : Cryptography Digital Signatures. Digital Signatures. Digital Signatures... Christian Collberg Outline CSc 466/566 Computer Security 8 : Cryptography Digital Signatures Version: 2012/02/27 16:07:05 Department of Computer Science University of Arizona collberg@gmail.com Copyright c 2012 Christian

More information