FYI: you need to install a patch on Solaris 8 in order to get /dev/random. Solaris 9 may come with /dev/random for free, but I am not sure.
-Kevin On Mon, 2002-09-30 at 18:58, Wei Dai wrote: > I think Solaris does not have /dev/random or /dev/urandom, so that's why > AutoSeededRandomPool is not available. However I just did a web search > that indicates some versions of Solaris 8 and 9 may have /dev/random now. > So you can enable it, by doing a search and replace from > "defined(__FreeBSD__) || defined(__linux__)" to "defined(__unix__)" in > osrng.h and osrng.cpp. AutoSeededRandomPool will throw a run-time > exception if it can't open /dev/urandom. > > This web page gives other methods of generating random numbers: > http://www.cs.berkeley.edu/~daw/rnd/. Unfortunately none of them are > nearly as easy as using AutoSeededRandomPool. > > On Tue, Oct 01, 2002 at 04:19:17AM +0800, Ng Keng Seng wrote: > > Dear all, > > > > (1) i trying to generate RSA Key by utilizing AutoSeededRandomPool (as shown > > below). > > --------------------------------------------------------------------------------------------- > > | AutoSeededRandomPool randPool; > > | RSAES_OAEP_SHA_Decryptor priv(randPool, keyLength); > > | HexEncoder privKey(new StringSink(secstring)); > > | ...etc > > --------------------------------------------------------------------------------------------- > > However, my Solaris complains "AutoSeededRandomPool undeclared". > > Q1: Is there any other method to generate an auto seeded random number (in > > Solaris) other than using AutoSeededRandomPool?? > > > > > > (2) as a result from (1), i try to modify the coding by using time(NULL) as the > > seed. (as show below) > > ---------------------------------------------------------------------------------------------- > > | Seed = time(0); //something like that > > | ... > > | RandomPool randPool; > > | randPool.Put((byte *)Seed, strlen((char*)Seed)); > > | RSAES_OAEP_SHA_Decryptor priv(randPool, keyLength); > > | HexEncoder privKey(new StringSink(secstring)); > > | etc.. > > ---------------------------------------------------------------------------------------------- > > it's work. However, i discovered that, if two successive key generating happen > > very closed to each other (>1second), they will generated the SAME key pairs (i > > experience it before)! it is because the time(0) function returns the current > > computer time(calender) in seconds, hence, if the time is less than, say, a > > second, there will be no difference for the Seed of this two successive key > > generating. it my simulation, the time for two succesive key generating always > > less than a second. > > Q2: Can anyone suggests a better method to generate an auto seeded random number > > if the succesive key generating happen so closed to each other?? > > > > really appreciate if someone can help me. > > thanks in advance. > > > > Regards, >
