pretty good privacy
play

Pretty Good Privacy Privacy Enhancing Technologies Leonardo A. - PowerPoint PPT Presentation

Mar 07, 2023 •240 likes •468 views

Pretty Good Privacy Privacy Enhancing Technologies Leonardo A. Martucci CC-BY-4.0 Part 2: Secure Communications Why do we need secure communications? PGP We are here! TLS and Let's Encrypt Secure messaging Pretty Good Privacy

  1. Pretty Good Privacy Privacy Enhancing Technologies Leonardo A. Martucci CC-BY-4.0

  2. Part 2: Secure Communications • Why do we need secure communications? • PGP We are here! • TLS and Let's Encrypt • Secure messaging

  3. Pretty Good Privacy (PGP) • Security tool for confidentiality integrity authentication

  4. How does PGP work? • with public key and symmetric key encryption + hashing private key private key public key public key

  5. How does PGP work? • with public key and symmetric key encryption + hashing private key private key public key public key generate random (symmetric) key

  6. How does PGP work? • with public key and symmetric key encryption + hashing private key private key public key public key generate random (symmetric) key hash( )

  7. How does PGP work? • with public key and symmetric key encryption + hashing private key private key public key public key generate random Enc( ) using = (symmetric) key Sign( ) using = hash( )

  8. How does PGP work? • with public key and symmetric key encryption + hashing private key private key public key public key

  9. How does PGP work? • with public key and symmetric key encryption + hashing private key private key public key public key Dec( ) using = Dec( ) using =

  10. How does PGP work? • with public key and symmetric key encryption + hashing private key private key public key public key hash( ) equal?( ) Dec( ) using = Ver( ) using = Dec( ) using =

  11. How does PGP work? • with public key and symmetric key encryption + hashing private key private key public key public key ???

  12. Public Key Distribution: Web of Trust trust Sign( ) Sign( ) is trusted by is trusted by

  13. Public Key Distribution: Web of Trust trust Sign( ) Sign( ) is trusted by is trusted by

  14. Public Key Distribution: Web of Trust trust trust Web of Trust

  15. PGP in the Real World • Exchanging encrypted email with OpenPGP (RFC 4880) with ssh-keygen • 1st: generate a key pair e.g. ssh-keygen -t rsa -b 4096 • 2nd: upload to a public repository e.g. the MIT PGP Public Key Server

  16. PGP in the Real World • Exchanging encrypted email with OpenPGP (RFC 4880) • 3rd: Build your web of trust or look into the repository for keys

  17. PGP in the Real World • Exchanging encrypted email with OpenPGP (RFC 4880) • 4th: start encrypting and signing suggestion: with the support of an your emails! email client extension e.g. Enigmail enigmail toolbar

  18. PGP in the Real World • Exchanging encrypted email with OpenPGP (RFC 4880) • 5th: receiving emails suggestion: with the support of an email client extension e.g. Enigmail

  19. https://www.xkcd.com/1181/

  20. The Caveats old (from the 90’s) not really usable • PGP is keys are really long no key management no forward secrecy * https://blog.cryptographyengineering.com/2014/08/13/whats-matter-with-pgp/

  21. Part 2: Secure Communications • Why do we need secure communications? • PGP • TLS and Let's Encrypt next session • Secure messaging

Recommend

PGP, Pretty Good Privacy General Created 1991 by Philip Zimmerman (a former political

PGP, Pretty Good Privacy General Created 1991 by Philip Zimmerman (a former political

PGP, Pretty Good Privacy General Created 1991 by Philip Zimmerman (a former political activist irritated by restricting freedom of using encryptation) Uses IDEA, a symmetric very strong cryptoalgorithm, to encrypt data. RSA is

676 views • 20 slides
PGP, Pretty Good Privacy General Created 1991 by Philip Zimmerman (a former political

PGP, Pretty Good Privacy General Created 1991 by Philip Zimmerman (a former political

PGP, Pretty Good Privacy General Created 1991 by Philip Zimmerman (a former political activist irritated by restricting freedom of using encryptation) Uses IDEA, a symmetric very strong cryptoalgorithm, to encrypt data. RSA is

558 views • 16 slides
O VERVIEW Applying security measure to the Internet Securing email Pretty Good Privacy

O VERVIEW Applying security measure to the Internet Securing email Pretty Good Privacy

4/16/18 S ECURING E MAIL WITH P RETTY G OOD P RIVACY C S C 2 4 9 A P R I L 1 7 , 2 0 1 8 O VERVIEW Applying security measure to the Internet Securing email Pretty Good Privacy Secure sockets layer, SSL Firewalls and Intrusion

268 views • 13 slides
pp W3C Privacy Workshop in Berlin 2014-11-21 W3C Privacy Workshop in Berlin 2014-11-21 pretty

pp W3C Privacy Workshop in Berlin 2014-11-21 W3C Privacy Workshop in Berlin 2014-11-21 pretty

pp W3C Privacy Workshop in Berlin 2014-11-21 W3C Privacy Workshop in Berlin 2014-11-21 pretty Easy privacy pretty Easy privacy Landscape of Messaging Solutions Voltage Datamotion Symantec Echoworx Totemo TrendMicro Peanut SMS

982 views • 15 slides
PRETTY EASY PRIVACY 05-2014 It is called kinko Overview introduction spot the problem

PRETTY EASY PRIVACY 05-2014 It is called kinko Overview introduction spot the problem

PRETTY EASY PRIVACY 05-2014 It is called kinko Overview introduction spot the problem building good crypto tools challenges more than tools get involved Snowden 2013... ...rekindled interest in privacy. Privacy after

643 views • 46 slides
Chapter 5 Electronic Mail Security -Pretty Good Privacy (PGP) -S/MIME 1 Need for E-Mail

Chapter 5 Electronic Mail Security -Pretty Good Privacy (PGP) -S/MIME 1 Need for E-Mail

Chapter 5 Electronic Mail Security -Pretty Good Privacy (PGP) -S/MIME 1 Need for E-Mail Security E-mail is necessary for E-Commerce Daily communication E-Mail is also very public, allowing for access at each point from the

1.1k views • 23 slides
Pretty Good Democracy Peter Y A Ryan University of Luxembourg Vanessa Teague University of

Pretty Good Democracy Peter Y A Ryan University of Luxembourg Vanessa Teague University of

Pretty Good Democracy Peter Y A Ryan University of Luxembourg Vanessa Teague University of Melbourne Fribourg 6 September 2010 P Y A Ryan Pretty Good Democracy 1 Outline The challenge Pretty Good Democracy Threats

780 views • 26 slides
We may not be young, we may not be pretty, we may not be right good, but were here

We may not be young, we may not be pretty, we may not be right good, but were here

We may not be young, we may not be pretty, we may not be right good, but were here and were worth protecting : THE PLANNING POLICY CONTEXT TO THE PROTECTION OF HISTORIC PARKS AND GARDENS VICTORIA THOMSON HEAD OF PLANNING ADVICE

622 views • 43 slides
HMM Can Find Pretty Good POS Taggers (When Given a Good Start) Yoav Goldberg Meni Adler Michael

HMM Can Find Pretty Good POS Taggers (When Given a Good Start) Yoav Goldberg Meni Adler Michael

Introduction Initial Conditions For POS Tagging Experiments HMM Can Find Pretty Good POS Taggers (When Given a Good Start) Yoav Goldberg Meni Adler Michael Elhadad university-logo ACL 2008, Columbus, Ohio Yoav Goldberg, Meni Adler, Michael

725 views • 45 slides
Making maps pretty Andrea Aime Jim Groffen Making Maps Pretty Making Maps Pretty 1 1 Making

Making maps pretty Andrea Aime Jim Groffen Making Maps Pretty Making Maps Pretty 1 1 Making

Making maps pretty Andrea Aime Jim Groffen Making Maps Pretty Making Maps Pretty 1 1 Making maps pretty Introduction Making Maps Pretty Making Maps Pretty 2 2 Introducing carthography Depiciting shape and location, conveing

588 views • 48 slides
If you are honest, this tells the truth - it's pretty good! Write your answers on a piece of

If you are honest, this tells the truth - it's pretty good! Write your answers on a piece of

Horoscope Test... If you are honest, this tells the truth - it's pretty good! Write your answers on a piece of paper. No cheating! The answers are at the next slide. 1. Write the name of a person of the opposite sex. 2. Which is your favorite

69 views • 3 slides
Quantum state discrimination with the Pretty good Measurement Proudly presented by

Quantum state discrimination with the Pretty good Measurement Proudly presented by

Quantum state discrimination with the Pretty good Measurement Proudly presented by Jonathan Lavoie Theory of Quantum Communication 27 July 2010 Problem statement : discrimination of quantum states | k = - |s k The PGM

442 views • 10 slides
Tech360 November 16, 2017 Why Innovate? Why change? Business is pretty good Years of

Tech360 November 16, 2017 Why Innovate? Why change? Business is pretty good Years of

BV@SS: Business Value at Startup Speed Tech360 November 16, 2017 Why Innovate? Why change? Business is pretty good Years of success We dont chase fads Why Innovate? Why change? Huge VC investment pools Entry by

244 views • 22 slides
The Box With The Box With The Pretty Red Bow The Pretty Red Bow Asset Protection of America |

The Box With The Box With The Pretty Red Bow The Pretty Red Bow Asset Protection of America |

The Box With The Box With The Pretty Red Bow The Pretty Red Bow Asset Protection of America | 702-897-9997 1 Todays Agenda 1 Three Ways To Pass Your Estate To Your Heirs 2 What is PROBATE? 3 Different Levels of Probate 4 Probate

509 views • 15 slides
Quantum algorithm for Petz recovery channels and pretty good measurements (arXiv:2006.16924)

Quantum algorithm for Petz recovery channels and pretty good measurements (arXiv:2006.16924)

Quantum algorithm for Petz recovery channels and pretty good measurements (arXiv:2006.16924) Yihui Quek yquek@stanford.edu MIT QIS group meeting with Andr as Gily en, Seth Lloyd, Iman Marvian, Mark M. Wilde July 31, 2020 Yihui Quek

649 views • 52 slides
privacy (and trust) for SNS me ! " many social networks (fragmented?) diversity is good! How

privacy (and trust) for SNS me ! " many social networks (fragmented?) diversity is good! How

privacy (and trust) for SNS me ! " many social networks (fragmented?) diversity is good! How do we manage our diversity? (identities) Privacy is difficult. Tech? Legal? action: collecting current practices (many) Me, You, Us. social

438 views • 14 slides
Fuzzing Tools Jenny Kang High-level overview A pretty slide deck that does a good job of

Fuzzing Tools Jenny Kang High-level overview A pretty slide deck that does a good job of

Fuzzing Tools Jenny Kang High-level overview A pretty slide deck that does a good job of explaining browser fuzzing approaches on a high level Another slide deck on DOM fuzzing Peach (Windows version) PeachPit is an XML file

741 views • 36 slides
T-79.159 Cryptography and Data Security Lecture 11: Security systems using public keys 11.1 PGP

T-79.159 Cryptography and Data Security Lecture 11: Security systems using public keys 11.1 PGP

T-79.159 Cryptography and Data Security Lecture 11: Security systems using public keys 11.1 PGP Kaufman et al: Ch 17, 11.2 SSL/TLS 18, 19 11.3 IPSEC Stallings: Ch 16,17 1 Pretty Good Privacy Email encryption program

566 views • 8 slides
Security 2 CSC 249 April 12, 2018 Network Security Recap Message Integrity and Authentication

Security 2 CSC 249 April 12, 2018 Network Security Recap Message Integrity and Authentication

Security 2 CSC 249 April 12, 2018 Network Security Recap Message Integrity and Authentication Trusted Intermediaries Secure email pretty good privacy (PGP) 2 1 Cryptographic Keys Alices Bobs K A encryption decryption K B key

427 views • 13 slides
Can Data Privacy Be Good for Brands? The opinions expressed in this presentation do not

Can Data Privacy Be Good for Brands? The opinions expressed in this presentation do not

Can Data Privacy Be Good for Brands? The opinions expressed in this presentation do not constitute or represent legal advice. No liability is accepted by the presenters or W2O Group for any action taken or not taken based on the information in

987 views • 73 slides
Modern cryptography 2 CSCI 470: Web Science Keith Vertanen Overview Modern cryptography

Modern cryptography 2 CSCI 470: Web Science Keith Vertanen Overview Modern cryptography

Modern cryptography 2 CSCI 470: Web Science Keith Vertanen Overview Modern cryptography Asymmetric cryptography Diffie-Hellman key exchange (last time) Pubic key: RSA Pretty Good Privacy (PGP) Digital signing Public

682 views • 26 slides
$ Lesson Ten Consumer Privacy 04/09 privacy and information information privacy: privacy that

$ Lesson Ten Consumer Privacy 04/09 privacy and information information privacy: privacy that

Presentation Slides $ Lesson Ten Consumer Privacy 04/09 privacy and information information privacy: privacy that involves the rights of individuals in relation to information about them that is circulating in society. why privacy is an

318 views • 13 slides
II Maintains confidentiality & respects the student's rights to privacy Demonstrates

II Maintains confidentiality & respects the student's rights to privacy Demonstrates

II Maintains confidentiality & respects the student's rights to privacy Demonstrates compassion 'Do Good, Not Harm' - utilizes good decision making skills when faced with ethical dilemmas Understands and is sensitive to the

477 views • 12 slides
Privacy Protection privacy notions and metrics; privacy in RFID systems; location privacy in

Privacy Protection privacy notions and metrics; privacy in RFID systems; location privacy in

Privacy Protection privacy notions and metrics; privacy in RFID systems; location privacy in vehicular networks; Security and Cooperation in Wireless Networks Georg-August University Gttingen Chapter outline 1 Important privacy related

1.12k views • 33 slides

More recommend