pub fn hint_envelope_id(
envelope_id: EnvelopeId,
hint_removal_token: OneSix,
blinded_public_key: &BlindedPublicKey,
salts: &Salts,
csprng: &mut impl CryptoRngCore,
) -> Result<EnvelopeIdHint, CryptError>pub fn hint_envelope_id(
envelope_id: EnvelopeId,
hint_removal_token: OneSix,
blinded_public_key: &BlindedPublicKey,
salts: &Salts,
csprng: &mut impl CryptoRngCore,
) -> Result<EnvelopeIdHint, CryptError>