Module Mirage_crypto_rng.Hmac_drbg

State type for this generator.

Internally, this generator's generate always produces k * block bytes.

Create a new, unseeded g.

generate_into ~g buf ~off n produces n uniformly distributed random bytes into buf at offset off, updating the state of g.

• raises Invalid_argument

  if buffer is too small (it must be: Bytes.length buf - off >= n)

reseed ~g bytes directly updates g. Its new state depends both on bytes and the previous state.

A generator is seded after a single application of reseed.

accumulate ~g is a closure suitable for incrementally feeding small amounts of environmentally sourced entropy into g.

Its operation should be fast enough for repeated calling from e.g. event loops. Systems with several distinct, stable entropy sources should use stable source to distinguish their sources.

seeded ~g is true iff operations won't throw Unseeded_generator.

pools is the amount of pools if any.