A Security Evaluation of Whitenoise

This report studies the security of Whitenoise, a stream cipher invented by BSB Utilities Inc. I present the results of a limited time analysis of this scheme. After a careful security analysis, I was unable to find any security weaknesses in the Whitenoise stream cipher. Whitenoise resists all of the attack methods I was able to think of. This provides evidence for the security of Whitenoise. To be sure, this is not a guarantee that Whitenoise is secure. It is possible that someone else might be able to find some weakness that I overlooked. Cryptographic canon is that no new algorithm should be deployed until it has been examined carefully by many qualified cryptanalysts. For this reason, it would be premature to deploy Whitenoise in new systems at this point. However, the security analysis conducted in this study is an important first step in the process of gaining confidence in the quality of the Whitenoise stream cipher. My analysis does provide considerable evidence that Whitenoise is worth further study; it appears to be a serious candidate, and in my opinion, it deserves to be further vetted by the security community at large.