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Friday, November 12, 2004Bruce Schneier, the famous security expert as written an excellent piece in his blog about The Problem with Electronic Voting Machines .On the whole, visualise imagine how crazy it would be to have a safe ATM network if your withdrawals had to be as anonymous as your vote. Bruce talks about several such issues. It's all well thought out,very important and presented nicely. Excerpts:
- Computer security experts are unanimous on what to do. (Some voting experts disagree, but I think we’re all much better off listening to the computer security experts. The problems here are with the computer, not with the fact that the computer is being used in a voting application.) And they have two recommendations:
DRE machines must have a voter-verifiable paper audit trails (sometimes called a voter-verified paper ballot). This is a paper ballot printed out by the voting machine, which the voter is allowed to look at and verify. He doesn’t take it home with him. Either he looks at it on the machine behind a glass screen, or he takes the paper and puts it into a ballot box. The point of this is twofold. One, it allows the voter to confirm that his vote was recorded in the manner he intended. And two, it provides the mechanism for a recount if there are problems with the machine.
- Software used on DRE machines must be open to public scrutiny. This also has two functions. One, it allows any interested party to examine the software and find bugs, which can then be corrected. This public analysis improves security. And two, it increases public confidence in the voting process. If the software is public, no one can insinuate that the voting system has unfairness built into the code. (Companies that make these machines regularly argue that they need to keep their software secret for security reasons. Don’t believe them. In this instance, secrecy has nothing to do with security.)
Computerized systems with these characteristics won’t be perfect -- no piece of software is -- but they’ll be much better than what we have now. We need to start treating voting software like we treat any other high-reliability system. The auditing that is conducted on slot machine software in the U.S. is significantly more meticulous than what is done to voting software. The development process for mission-critical airplane software makes voting software look like a slapdash affair. If we care about the integrity of our elections, this has to change.
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