AsnEncodedData.cs

namespace System.Security.Cryptography
{
    public class AsnEncodedData
    {
        internal Oid m_oid;

        internal byte[] m_rawData;

        public Oid Oid
        {
            get
            {
                return m_oid;
            }
            set
            {
                if (value == null)
                {
                    m_oid = null;
                }
                else
                {
                    m_oid = new Oid(value);
                }
            }
        }

        public byte[] RawData
        {
            get
            {
                return m_rawData;
            }
            set
            {
                if (value == null)
                {
                    throw new ArgumentNullException("value");
                }
                m_rawData = (byte[])value.Clone();
            }
        }

        internal AsnEncodedData(Oid oid)
        {
            m_oid = oid;
        }

        internal AsnEncodedData(string oid, CAPIBase.CRYPTOAPI_BLOB encodedBlob)
            : this(oid, CAPI.BlobToByteArray(encodedBlob))
        {
        }

        internal AsnEncodedData(Oid oid, CAPIBase.CRYPTOAPI_BLOB encodedBlob)
            : this(oid, CAPI.BlobToByteArray(encodedBlob))
        {
        }

        protected AsnEncodedData()
        {
        }

        public AsnEncodedData(byte[] rawData)
        {
            Reset(null, rawData);
        }

        public AsnEncodedData(string oid, byte[] rawData)
        {
            Reset(new Oid(oid), rawData);
        }

        public AsnEncodedData(Oid oid, byte[] rawData)
        {
            Reset(oid, rawData);
        }

        public AsnEncodedData(AsnEncodedData asnEncodedData)
        {
            if (asnEncodedData == null)
            {
                throw new ArgumentNullException("asnEncodedData");
            }
            Reset(asnEncodedData.m_oid, asnEncodedData.m_rawData);
        }

        public virtual void CopyFrom(AsnEncodedData asnEncodedData)
        {
            if (asnEncodedData == null)
            {
                throw new ArgumentNullException("asnEncodedData");
            }
            Reset(asnEncodedData.m_oid, asnEncodedData.m_rawData);
        }

        public virtual string Format(bool multiLine)
        {
            if (m_rawData == null || m_rawData.Length == 0)
            {
                return string.Empty;
            }
            string lpszStructType = string.Empty;
            if (m_oid != null && m_oid.Value != null)
            {
                lpszStructType = m_oid.Value;
            }
            return CAPI.CryptFormatObject(1u, multiLine ? 1u : 0u, lpszStructType, m_rawData);
        }

        private void Reset(Oid oid, byte[] rawData)
        {
            Oid = oid;
            RawData = rawData;
        }
    }
}