<PackageReference Include="BouncyCastle.Cryptography" Version="2.8.0-beta.349" />

Org.BouncyCastle.Crypto.Parameters.KdfParameters

Parameters for the key derivation functions that derive keying material from a shared secret and an optional block of additional input: KDF1 and KDF2 of IEEE P1363a / ISO 18033-2 (KDF2 being the ANSI X9.63 KDF, where the additional input is the SharedInfo), and the NIST SP 800 - 56A concatenation KDF(where it is the OtherInfo).
public KdfParameters(byte[] shared, byte[] iv)

Base constructor.

public byte[] GetIV()

Return the additional input to the key derivation function.

public byte[] GetSharedSecret()

Return the shared secret the keying material is derived from.