private void Decode()
{
if (this.RawData.Length < 2 || (int)this.RawData[1] != this.RawData.Length - 2)
{
throw new CryptographicException(-2146885630);
}
if ((int)this.RawData[0] != 6)
{
throw new CryptographicException(-2146881269);
}
this.m_contentType = new Oid(PkcsUtils.DecodeObjectIdentifier(this.RawData, 2));
this.m_decoded = true;
}