A mischievous masculine finger snuck up over the edge of the laptop and hit a random key.

You certainly can't use a random key because how would you ever decrypt it?

Before it even touches you it's already got a fantastically random key.

I use a pseudorandom number generator to generate a random 128-bit key.

So this random key is encrypted three times, once with each certificate.

The solution to the inadvertent assumption problem is to generate a random primary key.

The protocol is designed by combining random public keys in such a structured way to achieve a vanishing effect.

It is often necessary to generate secret and random keys from sources that are semi-secret or which may be compromised to some degree.

Now we generate a random 256-bit key which we'll use to encrypt that block.

The problem of how to safely generate truly random keys is difficult, and has been addressed in many ways by various cryptographic systems.