There are two random number generators in Bouncy Castle - C# version that may be of use: DigestRandomGenerator
and VmpcRandomGenerator
, both in the crypto.prng
name space. The trick is to seed those random entropy from a source you can trust.
Note that I am unfamiliar with the VMPC algorithm. The DigestRandomGenerator
largely depends on the security of the underlying hash function (SHA-512 is pretty secure and fast on 64 bit hardware). It is a rather simple implementation, but it should be secure none-the-less.