<PackageReference Include="BouncyCastle.Cryptography" Version="2.5.0" />

Org.BouncyCastle.Bcpg.OpenPgp.Rfc6637Utilities

public sealed class Rfc6637Utilities
namespace Org.BouncyCastle.Bcpg.OpenPgp { public sealed class Rfc6637Utilities { public static string GetAgreementAlgorithm(PublicKeyPacket pubKeyData); public static DerObjectIdentifier GetKeyEncryptionOID(SymmetricKeyAlgorithmTag algID); public static int GetKeyLength(SymmetricKeyAlgorithmTag algID); public static byte[] CreateKey(PublicKeyPacket pubKeyData, ECPoint s); public static byte[] CreateKey(PublicKeyPacket pubKeyData, byte[] secret); public static byte[] CreateUserKeyingMaterial(PublicKeyPacket pubKeyData); } }