Struct HmacSha512Drbg 

pub struct HmacSha512Drbg { /* private fields */ }

HMAC-DRBG (SHA-512) wrapper implementing DeterministicRng.

Implementations

impl HmacSha512Drbg

pub fn new( entropy: &[u8], nonce: &[u8], personalization: Option<&[u8]>, ) -> Result<Self, DrbgError>

Instantiate DRBG from caller-provided entropy/nonce/personalization strings.

pub fn from_os(personalization: Option<&[u8]>) -> Result<Self, DrbgError>

Instantiate DRBG using the operating system CSPRNG for entropy and nonce.

pub fn inner_mut(&mut self) -> &mut HmacDrbg

Borrow the inner DRBG mutably (for adapters).

Trait Implementations

impl Debug for HmacSha512Drbg

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl DeterministicRng for HmacSha512Drbg

fn fill_bytes(&mut self, out: &mut [u8]) -> Result<(), DrbgError>

Fill out with pseudorandom bytes.

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

Reseed the generator with new entropy and optional additional input.

fn set_reseed_interval(&mut self, interval: u64)

Adjust the reseed interval (number of generate calls permitted before mandatory reseed).

fn set_max_bytes_between_reseed(&mut self, bytes: u128)

Adjust the byte budget that forces a reseed.

impl Drop for HmacSha512Drbg

fn drop(&mut self)

Executes the destructor for this type.

impl Zeroize for HmacSha512Drbg

fn zeroize(&mut self)

Zero out this object from memory using Rust intrinsics which ensure the zeroization operation is not “optimized away” by the compiler.