/// <summary>
/// Create the ContentType MIME header for a Signed MIME entity
/// </summary>
/// <param name="digestAlgorithm">Digest algorithm being used, such as SHA1</param>
/// <returns>ContentType header</returns>
public static ContentType CreateContentType(DigestAlgorithm digestAlgorithm)
{
ContentType contentType = new ContentType(SMIMEStandard.MultiPartTypeSigned);
contentType.Parameters.Add(SMIMEStandard.ProtocolParameterKey, SMIMEStandard.SignatureProtocol);
contentType.Parameters.Add(SMIMEStandard.MICAlgorithmKey, SMIMEStandard.ToString(digestAlgorithm));
return(contentType);
}
/// <summary>
/// Transforms the <paramref name="algorithm"/> to a string suitable for the <c>micalg</c> parameter value
/// </summary>
/// <param name="algorithm">The digest algorithm to transform</param>
/// <returns>A string suitable for the value of the <c>micalg</c> parameter</returns>
public static string AsString(this DigestAlgorithm algorithm)
{
return(SMIMEStandard.ToString(algorithm));
}