Skip to main content

prepare

polymorph_webcrypto_guest::bindings::hkdf_sha2

Function prepare 

Source 
pub async fn prepare(
    variant: Sha2Variant,
    input: &Ikm,
    salt: Vec<u8>,
    info: Vec<u8>,
) -> Result<DeriveInput, Error>
Expand description

Parameterize a derivation: HKDF-Extract with salt runs over the material (eagerly, so the returned input retains the PRK rather than the IKM), and info is bound for the expand step at use. An implementation not serving the variant fails error.unsupported (the truncated SHA-2 variants are unserved package-wide, as for hmac-sha2).