I think what he is saying is that there is no point in having three signatures if they are not segregated in a secure manner. This is to say, if you use your computer as one "factor", and a third party website as another, but you use the same computer to access the website, there is no gain in security.
Another example would be an android phone. If your computer is compromised and your browser is authenticated to your Google account, you could remotely install an "app" on your phone. I don't know if I understood/explained myself correctly; I think two factor is better than one and there is a security gain if implemented securely. Cheers! Pedro On 2/3/2015 8:58 AM, Brian Erdelyi wrote: >> Confusing or not, the reliance on multiple signatures as offering greater >> security than single relies on the independence of multiple secrets. If the >> secrets cannot be shown to retain independence in the envisioned threat >> scenario (e.g. a user's compromised operating system) then the benefit >> reduces to making the exploit more difficult to write, which, once written, >> reduces to no benefit. Yet the user still suffers the reduced utility >> arising from greater complexity, while being led to believe in a false >> promise. > Just trying to make sure I understand what you’re saying. Are you eluding to > that if two of the three private keys get compromised there is no gain in > security? Although the likelihood of this occurring is lower, it is possible. > > As more malware targets bitcoins I think the utility is evident. Given how > final Bitcoin transactions are, I think it’s worth trying to find methods to > help verify those transactions (if a user deems it to be high-risk enough) > before the transaction is completed. The balance is trying to devise > something that users do not find too burdensome. > > Brian Erdelyi > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming. The Go Parallel Website, > sponsored by Intel and developed in partnership with Slashdot Media, is your > hub for all things parallel software development, from weekly thought > leadership blogs to news, videos, case studies, tutorials and more. Take a > look and join the conversation now. http://goparallel.sourceforge.net/ > _______________________________________________ > Bitcoin-development mailing list > Bitcoin-development@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bitcoin-development ------------------------------------------------------------------------------ Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
