talk-ta3m-crypto-tools-workshop

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Page 1: talk-ta3m-crypto-tools-workshop

Protecting Your Privacy with Easy-to-Use

CryptographySteve Phillips2014.06.16

SBHX

Page 2: talk-ta3m-crypto-tools-workshop

Outline

● What is cryptography?● Why use cryptography?● Secure instant messaging with OTR● Secure text messaging with TextSecure● Secure web browsing with Tor● Other projects

Page 3: talk-ta3m-crypto-tools-workshop

● “The enciphering and deciphering of messages in secret code or cipher”

● In practice, encrypting data in such a way that only the party you’re trying to communicate with can decrypt it

● Everyday examples: online banking

What is Cryptography?

Page 4: talk-ta3m-crypto-tools-workshop

Why Cryptography?

● Security○ Online banking○ (Most sites; don’t want password stolen)

● Privacy○ Personal privacy○ Bloggers in Egypt○ These days… all of us

■ Regular people, whistle-blowers, reporters, etc

Page 5: talk-ta3m-crypto-tools-workshop

Secure IMing with OTR

1. On Windows or Linux, install Pidgin - URL: http://pidgin.im/2. On Mac OS X, install Adium - URL: https://adium.im/ - Download OTR plugin here: https://otr.cypherpunks.ca/

Page 6: talk-ta3m-crypto-tools-workshop

Secure SMS with TextSecure

● Available for Android● iOS version (for iPhone, iPod Touch, and

iPad) currently in development

1. Search “open whisper systems” in Play Store2. Install TextSecure (and later, RedPhone)

Page 7: talk-ta3m-crypto-tools-workshop

Secure Web Browsing

1. Install Tor at https://www.torproject.org/2. DEMO (run it, visit a website)

● Browse the web○ Yes, it’s that simple

Page 8: talk-ta3m-crypto-tools-workshop

Other Projects

● Secure email with PGP● Secure file storage with TrueCrypt● Secure cloud storage with SparkleShare

○ Alternative to Dropbox, which is joining PRISM● SOON

○ CrypTag: Encrypted, Taggable, Searchable Web Storage