Cast5CbcParameters
using Org.BouncyCastle.Utilities;
using System;
namespace Org.BouncyCastle.Asn1.Misc
{
    public class Cast5CbcParameters : Asn1Encodable
    {
        private readonly DerInteger keyLength;
        private readonly Asn1OctetString iv;
        public int KeyLength => keyLength.IntValueExact;
        public static Cast5CbcParameters GetInstance(object o)
        {
            if (o is Cast5CbcParameters)
                return (Cast5CbcParameters)o;
            if (o is Asn1Sequence)
                return new Cast5CbcParameters((Asn1Sequence)o);
            throw new ArgumentException("unknown object in Cast5CbcParameters factory");
        }
        public Cast5CbcParameters(byte[] iv, int keyLength)
        {
            this.iv = new DerOctetString(iv);
            this.keyLength = new DerInteger(keyLength);
        }
        private Cast5CbcParameters(Asn1Sequence seq)
        {
            if (seq.Count != 2)
                throw new ArgumentException("Wrong number of elements in sequence", "seq");
            iv = (Asn1OctetString)seq[0];
            keyLength = (DerInteger)seq[1];
        }
        public byte[] GetIV()
        {
            return Arrays.Clone(iv.GetOctets());
        }
        public override Asn1Object ToAsn1Object()
        {
            return new DerSequence(iv, keyLength);
        }
    }
}