using System;

using Org.BouncyCastle.Tls.Crypto;
using Org.BouncyCastle.Utilities;

namespace Org.BouncyCastle.Tls
{
    public class BasicTlsPskExternal
        : TlsPskExternal
    {
        protected readonly byte[] m_identity;
        protected readonly TlsSecret m_key;
        protected readonly int m_prfAlgorithm; 

        public BasicTlsPskExternal(byte[] identity, TlsSecret key)
            : this(identity, key, Tls.PrfAlgorithm.tls13_hkdf_sha256)
        {
        }

        public BasicTlsPskExternal(byte[] identity, TlsSecret key, int prfAlgorithm)
        {
            this.m_identity = Arrays.Clone(identity);
            this.m_key = key;
            this.m_prfAlgorithm = prfAlgorithm;
        }

        public virtual byte[] Identity
        {
            get { return m_identity; }
        }

        public virtual TlsSecret Key
        {
            get { return m_key; }
        }

        public virtual int PrfAlgorithm
        {
            get { return m_prfAlgorithm; }
        }
    }
}