addressalign-toparrow-leftarrow-rightbackbellblockcalendarcameraccwcheckchevron-downchevron-leftchevron-rightchevron-small-downchevron-small-leftchevron-small-rightchevron-small-upchevron-upcircle-with-checkcircle-with-crosscircle-with-pluscrossdots-three-verticaleditemptyheartexporteye-with-lineeyefacebookfolderfullheartglobegmailgooglegroupshelp-with-circleimageimagesinstagramlinklocation-pinm-swarmSearchmailmessagesminusmoremuplabelShape 3 + Rectangle 1ShapeoutlookpersonJoin Group on CardStartprice-ribbonShapeShapeShapeShapeImported LayersImported LayersImported Layersshieldstartickettrashtriangle-downtriangle-uptwitteruserwarningyahoo

02/19/2014: NAISG Boston Monthly Meeting - "Bitcoin and Beyond"

Date: Wednesday, February 19th, 6:30 PM

Location: Microsoft office, Cambridge Center, Cambridge, MA.  Use the Microsoft-specific building entrance.

Cost: Free and includes pizza!

Reservations and Photo ID: Required. Reserve here at Meetup or by sending an email to [masked].  We require your full name for building security purposes, so please include that if your Meetup username does not provide it or you will NOT be added to the security list.  Please also bring a photo ID to present to building security upon entering the building.

NOTE:  We are in need of a pizza sponsor for this meeting.  If your company or
organization can provide this, please let me know at [masked].
 Details on the pizza sponsorship and what you get in return are at

"Bitcoin and Beyond," presented by Dr. Darren Tapp,  director of customer service for SnoopWall.

NOTE: This presentation will cover advanced topics (a "deep dive") in encryption techniques and protocols.

There are several cryptographic tools that are used to secure the Bitcoin protocol.
The most important of these tools is the Elliptic Curve Digital Signature
Algorithm, or ECDSA. In this presentation we will review this digital signature
algorithm including the group structure on elliptic curves and finite fields.  We will also review hash functions and how two specific hash functions are used
to secure Bitcoin in different ways.  We will then discuss known attacks
on ECDSA, and why a faulty random number generator on Android required the
immediate upgrade of some bitcoin software. We will speculate how bitcoin could
be upgraded in the event of a serious ECDSA attack.  If time permits, we will discuss market risks and rewards.

Join or login to comment.

  • Bradley D.

    The slides will be posted to the archive page on our website at within the next day or two.

    February 20, 2014

  • Jane M.

    I missed the meetup due to bad weather. Are there slides or other materials from the meetup that are posted?

    February 20, 2014

  • Adam

    Dr. Tapp gave an excellent presentation. He explained technical aspects of Bitcoin that are in need of greater understanding. Thanks to Bradley for his organizational efforts in arranging this.

    February 20, 2014

  • Arthur P.

    Very enjoyable meeting for an applied mathematician such as me.

    February 19, 2014

Our Sponsors

  • DTS

    Thank you to DTS for sponsoring the pizza for the February meeting!

People in this
Meetup are also in:

Sign up

Meetup members, Log in

By clicking "Sign up" or "Sign up using Facebook", you confirm that you accept our Terms of Service & Privacy Policy