/// <summary>
/// Генерирует строку зашифрованный текст&защифрованный ключ&вектор&ЭЦП
/// </summary>
/// <param name="msg"></param>
/// <returns></returns>
public static MimeMessage GenEncryptedMsg(MimeMessage msg, string body, List <string> attachments, RSABookInfo book)
{
// encryptedMsg – конечная зашифрованная строка
var encryptedMsg = "";
var mailMsg = msg;
var tdesKeys = TripleDES.GenKey();
var tdesTxt = Convert.ToBase64String(TripleDES.Encrypt(body, tdesKeys[0], tdesKeys[1]));
var encryptedKey = Convert.ToBase64String(RSA.Encrypt(tdesKeys[0], book.EmailPublic));
var iv = Convert.ToBase64String(tdesKeys[1]);
var builder = new BodyBuilder();
encryptedMsg += tdesTxt + "&" + encryptedKey + "&" + iv;
// Подпись ЭЦП при помощи DSA
//encryptedMsg += DSA.CreateSign(encryptedMsg, book.OwnPrivateECP);
builder.TextBody = encryptedMsg;
builder.HtmlBody = encryptedMsg;
foreach (var item in attachments)
{
builder.Attachments.Add(item);
}
mailMsg.Body = builder.ToMessageBody();
return(mailMsg);
}
