Just use FreeBSD 5.X as your operating system, the random device on it has been completely rewritten to be self-seeding with high quality random numbers. It harvests from a number of interrupts and if you don't turn those on it uses the Yarrow PRNG code. And it also uses the hardware random generator in the VIA C3 Nehemiah (stepping 3 or greater) CPU if your motherboard has one of those CPUs.
The PRNG is already ready to go when the system boots so you don't have to muck with any of those openssl seeding commands. Ted >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] Behalf Of Angel Martinez >Gonzalez >Sent: Thursday, June 23, 2005 1:26 AM >To: openssl-users@openssl.org >Subject: Re: How initialize the PRNG using RAND_seed ? > > >Hello: > >Thanks for your help, but I don´t know what "buffer" and "num" >I must use. > >How I can generate this buffer of random data?. And, "num" is >the entropy, >but, what is it?. How I obtain this entropy?. > >I use Windows. > >Thanks. Ragards. > >----- Original Message ----- >From: "Bernhard Froehlich" <[EMAIL PROTECTED]> >To: <openssl-users@openssl.org> >Sent: Thursday, June 23, 2005 10:17 AM >Subject: Re: How initialize the PRNG using RAND_seed ? > > >Angel Martinez Gonzalez wrote: > >>Hello: >> >>I need initialize the PRNG to can generate keys and performing >public key >>encryption. >> >>I want use one of this functions: >> void RAND_seed(const void *buf, int num); >> void RAND_add(const void *buf, int num, double entropy); >> >>But I don´t know what parameters I have to use. Somebody can send me a >>example to use this functions?. >> >> >See http://www.openssl.org/docs/crypto/RAND_add.html > >You usually use RAND_seed with a buffer of "good" random data. > >Hope it helps, >Ted >;) > >-- >PGP Public Key Information >Download complete Key from http://www.convey.de/ted/tedkey_convey.asc >Key fingerprint = 31B0 E029 BCF9 6605 DAC1 B2E1 0CC8 70F4 7AFB 8D26 > > > >______________________________________________________________________ >OpenSSL Project http://www.openssl.org >User Support Mailing List openssl-users@openssl.org >Automated List Manager [EMAIL PROTECTED] > ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
