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Theory and Practice of Cryptography

Google Tech Talks December, 19 2007 Topics include: Introduction to Modern Cryptography, Using Cryptography in Practice and at Google, Proofs of Security and Security Definitions and A Special Topic in Cryptography This talk is one in a series hosted by Google University: Wednesdays, 11/28/07 - 12/19/07 from 1-2pm Speaker: Steve Weis Steve Weis received his PhD from the Cryptography and Information Security group at MIT, where he was advised by Ron Rivest. He is a member of Google's Applied Security (AppSec) team and is the technical lead for Google's internal cryptographic library, KeyMaster.

Channel: People & Blogs
Uploaded: December 21, 2007 at 2:12 am
Author: googletechtalks

Length: 1:32:06
Rating: 4.78
Views: 11,921

Tags: google techtalks techtalk engedu talk talks googletechtalks education

Video Comments:

MageFX (Thursday 16th of October 2008 10:33:09 AM)

i need someone to likc my pussy h

07904662391 (Wednesday 15th of October 2008 10:31:25 AM)

g i want some sexy subscribers! w

jr3470 (Wednesday 27th of August 2008 08:06:44 PM)

my friend that's 15 wrote it in LSL language o_o and i still don't really know what it is just something that hides your password

StephenWeis (Friday 22nd of August 2008 11:33:06 AM)

As a follow up, Ben has built his voter-verifiable voting system on the web. Look for Helios Voting.

polarbear60 (Sunday 22nd of June 2008 03:15:51 PM)

You asshole! You are talking about voting and you have a preference? Where is your integrity!!!

kimshepherd (Wednesday 9th of January 2008 09:12:43 PM)

Excellent video, way better than hearing about Alice and Bob and Eve again... great examples, great ideas, great explanations.

AllAboutVoting (Friday 28th of December 2007 03:58:32 PM)

I really enjoyed this talk.

StephenWeis (Wednesday 26th of December 2007 01:01:23 AM)

Excellent talk.

kimshepherd (Wednesday 9th of January 2008 09:49:59 PM)

:) Quick question: I wonder whether it would be dangerous to rely on one centralised website or 'bulletin board', to avoid coercers taking over a university or ISP proxy server and fooling many voters into thinking their votes are corrupted... How important is the bulletin board itself in the overall auditing scheme?

StephenWeis (Wednesday 9th of January 2008 11:27:13 PM)

There doesn't have to be one centralized bulletin board. The key property Ben is trying to get at with the bulletin board analogy is that voters can go and check that their encrypted ballot appears in some publicly accessible repository, which may be distributed. If the vote does not appear, then the voter will have a receipt that they can turn over to an investigative agency. Denial of service, like in the example you give, is always a risk, but can be detected and prevented.

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Theory and Practice of Cryptography

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