Is the RNG cryptographically secure?

[ab5]

Is the random number generator that is used for sd_rand_application_vector_get cryptographically secure?

[Stian Røed Hafskjold]

In the nRF51 Series Reference Manual under section 20.1, it is written:

The Random Number Generator (RNG) generates true non-deterministic random numbers based on internal thermal noise.

Since the random number is not a pseudo-random number, I believe it is cryptographically secure