IS Sumup

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Transcript of IS Sumup

Page 1: IS Sumup

INFORMATION SAFESUMUP

Hoang V.Nguyen

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Agenda

What’s information safe.

Major problems and solutions.

Why must care.

Security ...

Q&A

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What’s information safe

In some cases, some properties of information

must be protected

Our tasks

?What properties

?How to protect

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Major problems and solutions

Confidentiality

• E: PxK C

• D: CxK P

Integrity

• You cannot protect

• But you can detect

Trust

• Make a belief to Alice and Bob

Others ….

• ….

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such that: if y=E(k,x) then: H(y)≥H(x) and maximize H(k)

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Major problems and solutions

Confidentiality

• E: PxK C

• D: CxK P

Integrity

• You cannot protect

• But you can detect

Trust

• Make a belief to Alice and Bob

Others ….

• ….

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DES

blowfish

such that: if y=E(k,x) then: H(y)≥H(x) and maximize H(k)

IDEA

RC4RSA

Elliptic Curve

Skien hash Family

CMAC

HMAC

Digital signatureCertificate Authority

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Why must care?

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Our jobs?Developer

Coder

User

Maintainer

Project manager

TesterDesigner

Solution Consultant

Consultant

Business analyst

Make security

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Security….

What• Theory

• Solution/pattern

• Design

• System

How• Understand

• Try to attack, and discover vulnerability

• Fix

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Security….

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Andy Oram & John ViegaMichael Howard & others Michael Howard & others

The Security Development Lifecycle by Michael Howard & Steve Lipner 2006

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Q&A

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