<PackageReference Include="BouncyCastle.Cryptography" Version="2.6.2" />

RC5Parameters

public class RC5Parameters : KeyParameter
using System; namespace Org.BouncyCastle.Crypto.Parameters { public class RC5Parameters : KeyParameter { private readonly int rounds; public int Rounds => rounds; public RC5Parameters(byte[] key, int rounds) : base(key) { if (key.Length > 255) throw new ArgumentException("RC5 key length can be no greater than 255"); this.rounds = rounds; } } }