July 9, 2002

Security in open versus closed systems

LogError writes: "In this article, Ross Anderson writes: "Some members of the open-source and free software community argue that their code is more secure, because vulnerabilities are easier for users to find and fix. Meanwhile the proprietary vendor community maintains that access to source code rather makes things easier for the attackers. In this paper, I argue that this is the wrong way to approach the interaction between security and the openness of design. I show first that under quite reasonable assumptions the security assurance problem scales in such a way that making it either easier, or harder, to find attacks, will help attackers and defendants equally. This model may help us focus on and understand those cases where some asymmetry is introduced." Read more."

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