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To: Apollo who wrote (84907)	7/8/1999 11:57:00 PM
From: KSHITIJ DOSHI	Respond to of 186894

security to necessitate more computational power Stan- With regard to your message (no. 84908)- security (through SSL or VPN) forces clients (PCs) to undertake a high amount of computation. Currently, these computations (for public key encryption and for ciphering as well as message digesting) cause significant slowdown-- enough to be noticeable to humans. With increased use of electronic commerce as well as greater desire for protecting privacy, we are likely to find greater percentages of our web accesses occurring over secure channels. Hence my observation that the Economist article which predicted a slowdown for PCs may have overlooked this factor: that it will be necessary for people and corporations to continue to advance to faster machines to compensate for these security/privacy related overheads. Conceivably these computations can be performed with augmented NICs or with add-on cards, but that would seem to push up costs in the near term. Plus, hardware only solutions would seem be too rigid for a multipurpose device such as a PC until the industry settles on a small, universally used set of signature and encryption algorithms. That may happen eventually, but given the need to support a broad set of algorithms for the near term, hardware-assisted solutions are more likely to be used at servers rather than clients.