Function hpke::SetupBaseS

pub fn SetupBaseS(
    config: HPKEConfig, 
    pkR: &HpkePublicKey, 
    info: &Info, 
    randomness: Randomness
) -> SenderContextResult

Encryption to a Public Key - Sender

The most basic function of an HPKE scheme is to enable encryption to the holder of a given KEM private key. The SetupBaseS() and SetupBaseR() procedures establish contexts that can be used to encrypt and decrypt, respectively, for a given private key. The KEM shared secret is combined via the KDF with information describing the key exchange, as well as the explicit info parameter provided by the caller.The parameter pkR is a public key, and enc is an encapsulated KEM shared secret.

def SetupBaseS(pkR, info):
  shared_secret, enc = Encap(pkR)
  return enc, KeyScheduleS(mode_base, shared_secret, info,
                           default_psk, default_psk_id)