Type Alias oprf::coprf::coprf_setup::CoPRFMasterSecret

pub type CoPRFMasterSecret = Vec<u8>;

The master secret for generating coPRF keys. It is fixed to a length 32 bytes since that is the number of bytes necessary as an input for HPKE-style key derivation when targeting scalars in P256. Per the HPKE RFC [RFC9180] it is crucial that a minimum of Nsk bytes of entropy is provided to the key derivation algorithm, where Nsk is the number of bytes to represent a valid private key, i.e. a P256 scalar in our case.

Aliased Type

struct CoPRFMasterSecret { /* private fields */ }