Degree Type

Thesis

Date of Award

2010

Degree Name

Master of Science

Department

Computer Science

First Advisor

Clifford Bergman

Abstract

A chosen ciphertext attack against the RSA encryption standard PKCS#1 v1.5 was introduced by Daniel Bleichenbacher at Crypto '98. This attack was the first example where an adaptive chosen ciphertext attack is not just a theoretical concept but a practical method to crack a semantically secure encryption scheme.

This paper reviews the notion of the semantic security which was believed to be secure enough in reality and the reason for which this belief was denied. The paper also presents a demonstration of the Bleichenbacher's attack by using a simplified version of PKCS#1 v1.5 format.

Copyright Owner

Sahnghyun Cha

Language

en

Date Available

2012-04-30

File Format

application/pdf

File Size

21 pages

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