Struct Drbg

pub struct Drbg { /* private fields */ }

Implementations

impl Drbg

pub fn new_with_entropy(alg: Algorithm, entropy: &[u8]) -> Result<Self, Error>

Create a new DRBG state with the given hash function. This also initializes the DRBG state with the given entropy.

pub fn personalized( alg: Algorithm, entropy: &[u8], nonce: &[u8], personalization: &str, ) -> Result<Self, Error>

Create a new DRBG state with the given hash function. This also initializes the DRBG state with the given entropy, nonce and personalization string.

pub fn reseed( &mut self, entropy: &[u8], additional_input: &[u8], ) -> Result<(), Error>

Reseed the DRBG state.

pub fn generate(&mut self, output: &mut [u8]) -> Result<(), Error>

Generate random bytes.

Note that you will need to call reseed() when reseed_required is true and the rand feature is not enabled. If the rand feature is enabled, the Drbg reseeds itself when needed, using OsRng.

pub fn generate_with_input( &mut self, output: &mut [u8], additional_input: &[u8], ) -> Result<(), Error>

Generate random bytes with additional input mixed into the state.

Note that you will need to call reseed() when reseed_required is true and the rand feature is not enabled. If the rand feature is enabled, the Drbg reseeds itself when needed, using OsRng.

pub fn generate_vec(&mut self, len: usize) -> Result<Vec<u8>, Error>

Generate random bytes. Allocates the vector of length len.

Note that you will need to call reseed() when reseed_required is true and the rand feature is not enabled. If the rand feature is enabled, the Drbg reseeds itself when needed, using OsRng.

pub fn generate_array<const LEN: usize>(&mut self) -> Result<[u8; LEN], Error>

Generate random bytes. Allocates the array of length LEN.

Note that you will need to call reseed() when reseed_required is true and the rand feature is not enabled. If the rand feature is enabled, the Drbg reseeds itself when needed, using OsRng.

pub fn reseed_required(&self) -> bool

Returns true if a reseed is required and false otherwise.

Trait Implementations

impl RngCore for Drbg

Implementation of the RngCore trait for the Drbg.

fn next_u32(&mut self) -> u32

Return the next random u32.

fn next_u64(&mut self) -> u64

Return the next random u64.

fn fill_bytes(&mut self, dest: &mut [u8])

Fill dest with random data.

fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>

Fill dest entirely with random data.

impl CryptoRng for Drbg