On 11 Dec 2012, at 3:27 PM, redpath wrote:
> an RSA pair is created. Its not so much I want to know how a pair is randomly 
> selected but how secure is that random selection. Random number generators 
> are a series and this selection could be followed for brute force deciphering.


I think the random number source or sources are configured when OpenSSL is 
built or in openssl.cnf. On the systems I'm familiar with, IIRC, entropy is 
obtained from /dev/*random and used to seed a CPRNG. 


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