Struct orion::hkdf::Hkdf

pub struct Hkdf {
    pub salt: Vec<u8>,
    pub ikm: Vec<u8>,
    pub info: Vec<u8>,
    pub hmac: ShaVariantOption,
    pub length: usize,
}

HKDF (HMAC-based Extract-and-Expand Key Derivation Function) as specified in the RFC 5869.

Fields

salt: Vec<u8>

ikm: Vec<u8>

info: Vec<u8>

hmac: ShaVariantOption

length: usize

Methods

impl Hkdf

HKDF (HMAC-based Extract-and-Expand Key Derivation Function) as specified in the RFC 5869.

Usage examples:

use orion::hkdf::Hkdf;
use orion::util::gen_rand_key;
use orion::options::ShaVariantOption;

let key = gen_rand_key(16);
let salt = gen_rand_key(16);
let info = gen_rand_key(16);

let dk = Hkdf { salt: salt, ikm: key, info: info, hmac: ShaVariantOption::SHA256, length: 50 };
let dk_extract = dk.hkdf_extract(&dk.ikm, &dk.salt);
dk.hkdf_expand(&dk_extract);

pub fn hkdf_extract(&self, ikm: &[u8], salt: &[u8]) -> Vec<u8>

Return HMAC matching argument passsed to Hkdf.

pub fn hkdf_expand(&self, prk: &[u8]) -> Vec<u8>

The HKDF Expand step. Returns an HKDF.

Trait Implementations

impl Drop for Hkdf

fn drop(&mut self)

Executes the destructor for this type.