On the Security and Composability of the One Time Pad

Motivated by a potentially flawed deployment of the one time pad in a recent quantum cryptographic application securing a bank transfer [12], we show how to implement a statistically secure system for message passing, that is, a channel with negligible failure rate secure against unbounded adversaries, using a one time pad based cryptosystem. We prove the security of our system in the framework put forward by Backes, Pfitzmann, and Waidner [11, 2, 3].

• Type: Conference
• Year: 2005
• Where: SOFSEM
• Authors: Dominik Raub, Rainer Steinwandt, Jörn Müller-Quade
• Keywords: Negligible Failure Rate, Pad Based Cryptosystem, SOFSEM 2005, Theoretical Computer Science, Time Pad