The Security Blanket, June/July 2002, Vol.1, no.9

Newsletter for Information Technology Department

The Security Blanket, September/October 2002, Issue 11

Newsletter for Information Technology Department

The Security Blanket, August 2002, Issue 10

Newsletter for Information Technology Department

The Security Blanket, January/February 2003, Issue 13

Newsletter for Information Technology Department

The Security Blanket, March/April 2003, Issue 14

Newsletter for Information Technology Department

The Security Blanket, November/December 2002, Issue 12

Newsletter for Information Technology Department

A-1A Supplemental Security Income Program, February 2005

Supplemental security income program

A-1A Supplemental Security Income Program, December 2004

SUPPLEMENTAL SECURITY INCOME PROGRAM

A-1A Supplemental Security Income Program, January 2005

A-1A Supplemental Security Income Program, January 2005

A-1A Supplemental Security Income Program, March 2005

A-1A SUPPLEMENTAL SECURITY INCOME PROGRAM

A-1A Supplemental Security Income Program, April 2005

SUPPLEMENTAL SECURITY INCOME PROGRAM

A-1A Supplemental Security Income Program, July 2005

A-1A Supplemental Security Income Program, July 2005

On the computational security of a distributed key distribution scheme

In a distributed key distribution scheme, a set of servers helps a set of users in a group to securely obtain a common key. Security means that an adversary who corrupts some servers and some users has no information about the key of a noncorrupted group. In this work, we formalize the security analysis of one such scheme which was not considered in the original proposal. We prove the scheme is secure in the random oracle model, assuming that the Decisional Diffie-Hellman (DDH) problem is hard to solve. We also detail a possible modification of that scheme and the one in which allows us to prove the security of the schemes without assuming that a specific hash function behaves as a random oracle. As usual, this improvement in the security of the schemes is at the cost of an efficiency loss.

A-1A Supplemental Security Income Program, August 2005

SUPPLEMENTAL SECURITY INCOME PROGRAM, August 2005

A-1A Supplemental Security Income Program, September 2005

Supplemental Security Income Program