Re: Patch: rework kernel random number subsystem
Simon Burge <[email protected]> Sat, 22 Oct 2011 13:53:39 +1100
| Newsgroups | gmane.os.netbsd.devel.crypto,gmane.os.netbsd.devel.kernel,gmane.os.netbsd.devel.security |
|---|---|
| Message-ID | <[email protected]> |
Thor Lancelot Simon wrote: > *When these generators are rekeyed, the 'rngtest' test is run > on their output and the kernel will panic if it fails.* It > is not the long-term intent to panic on a rngtest failure, > but rather to rekey; but this is a good way to detect bugs in > the implementation (see below). Can this panic behaviour be sysctl'able or #ifdef'd, and default to not do that? It seems like a very large sledgehammer to use. I suspect there'll be a large class of users who wouldn't expect a panic simply because they asked for a random number and it found a bug in your implementation. Cheers, Simon.