public void DecryptHiddenRecipient()
{
var asc = @"-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.13 (MingW32)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=s0gQ
-----END PGP MESSAGE-----
";
var context = new CryptoContext(GetPasswordCallback, Pubring, Secring, "rsa", "sha-1");
var crypto = new PgpCrypto(context);
var clear = crypto.DecryptAndVerify(Encoding.UTF8.GetBytes(asc));
Assert.NotNull(clear);
Assert.AreEqual(File.ReadAllText(Path.Combine(Data, "msg1.bin")),
Encoding.UTF8.GetString(clear));
}
public void UnicodeWithNonUnicodePageTest()
{
var clear = @"Hi Meddington,
i think i have found the issue.
I write this mail as - only text - message.
If another receive this email, my signature email and webaddress are i
nterpreted as links and will be changed by outlook to html elements.
Mit freundlichen Grüßen,
Sebastian Lutz
Baebeca Solutions - Lutz
E-Mail: [email protected]
Tel. Büro: 02261 - 9202935
Tel. Mobil: 0171 - 6431821
Web: https://www.baebeca.de
PGP Key: 0x5AD0240C
";
var context = new CryptoContext(GetPasswordCallback, Pubring, Secring, "rsa", "sha-1");
var crypto = new PgpCrypto(context);
var encoding = Encoding.GetEncoding(28591);
var clearSig = crypto.SignClear(clear, "*****@*****.**", encoding, new Dictionary<string, string>());
var ret = crypto.VerifyClear(encoding.GetBytes(clearSig));
Assert.IsTrue(ret);
}
public void DecryptAndVerifyCryptix()
{
var asc = @"-----BEGIN PGP MESSAGE-----
Version: Cryptix OpenPGP 0.20050418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=
=uF5e
-----END PGP MESSAGE-----
";
var context = new CryptoContext(GetPasswordCallback, Pubring, Secring, "rsa", "sha-1");
var crypto = new PgpCrypto(context);
var clear = crypto.DecryptAndVerify(Encoding.UTF8.GetBytes(asc), true);
Assert.NotNull(clear);
Assert.AreEqual("This is a test message.\r\nThis is another line.\r\n",
Encoding.UTF8.GetString(clear));
}
static void Main(string[] args)
{
var context = new CryptoContext(args[0].ToCharArray());
var crypto = new PgpCrypto(context);
if (crypto.VerifyClear(File.ReadAllBytes(args[1])))
Console.WriteLine("Valid");
else
Console.WriteLine("Invalid");
}
static void Main(string[] args)
{
var context = new CryptoContext(args[0].ToCharArray());
var crypto = new PgpCrypto(context);
Console.WriteLine(ASCIIEncoding.ASCII.GetString(crypto.DecryptAndVerify(File.ReadAllBytes(args[1]), true)));
if (context.FailedIntegrityCheck)
Console.WriteLine("Failed integrity check");
Console.WriteLine("Done");
}
public void CorrectEncryptKeyTest()
{
var context = new CryptoContext(
GetPasswordCallback,
@"C:\projects\OutlookPrivacyPlugin\Deja.Crypto.Test\pubring.gpg",
@"C:\projects\OutlookPrivacyPlugin\Deja.Crypto.Test\secring.gpg",
"rsa", "sha-1");
var crypto = new PgpCrypto(context);
var key = crypto.GetSecretKeyForEncryption("*****@*****.**");
Assert.AreEqual(long.Parse("BED5C89E8F3ABF8E", NumberStyles.HexNumber), key.KeyId);
}
public void CorrectSignKeyTest()
{
var context = new CryptoContext(
GetPasswordCallback,
@"C:\projects\OutlookPrivacyPlugin\Deja.Crypto.Test\pubring.gpg",
@"C:\projects\OutlookPrivacyPlugin\Deja.Crypto.Test\secring.gpg",
"rsa", "sha-1");
var crypto = new PgpCrypto(context);
PgpSecretKey masterKey;
var signKey = crypto.GetSecretKeyForSigning("*****@*****.**", out masterKey);
Assert.AreEqual(long.Parse("FB3B2D2D92C7039A", NumberStyles.HexNumber), signKey.KeyId);
}
public void OnAttachPublicKeyButton(Office.IRibbonControl control)
{
Outlook.MailItem mailItem = ((Outlook.Inspector)control.Context).CurrentItem as Outlook.MailItem;
if (mailItem == null)
{
// TODO - Generate a log message
MessageBox.Show("Error, mailItem was null.");
return;
}
var smtp = Globals.OutlookPrivacyPlugin.GetSMTPAddress(mailItem);
var crypto = new Deja.Crypto.BcPgp.PgpCrypto(new Deja.Crypto.BcPgp.CryptoContext());
var headers = new Dictionary <string, string>();
headers["Version"] = "Outlook Privacy Plugin";
var publicKey = crypto.PublicKey(smtp, headers);
if (publicKey == null)
{
// TODO - Generate log message
MessageBox.Show("Error, unable to find public key to attach.");
return;
}
var tempFile = Path.Combine(Path.GetTempPath(), "public_key.asc");
File.WriteAllText(tempFile, publicKey);
try
{
mailItem.Attachments.Add(
tempFile,
Outlook.OlAttachmentType.olByValue,
1,
"public_key.asc");
mailItem.Save();
}
finally
{
File.Delete(tempFile);
}
}
public void ExportPublicKey()
{
var expectedOutput = @"-----BEGIN PGP PUBLIC KEY BLOCK-----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=uWzT
-----END PGP PUBLIC KEY BLOCK-----
";
var context = new CryptoContext(
GetPasswordCallback,
@"C:\projects\OutlookPrivacyPlugin\Deja.Crypto.Test\pubring.gpg",
@"C:\projects\OutlookPrivacyPlugin\Deja.Crypto.Test\secring.gpg",
"rsa", "sha-1");
var crypto = new PgpCrypto(context);
var key = crypto.PublicKey("*****@*****.**", new Dictionary<string,string>());
Assert.AreEqual(expectedOutput, key);
}
public IList<GnuKey> GetKeysForEncryption()
{
var crypto = new PgpCrypto(new CryptoContext());
List<GnuKey> keys = new List<GnuKey>();
foreach (string key in crypto.GetPublicKeyUserIdsForEncryption())
{
var match = Regex.Match(key, @"<(.*)>");
if (!match.Success)
continue;
GnuKey k = new GnuKey();
k.Key = match.Groups[1].Value;
k.KeyDisplay = key;
keys.Add(k);
}
return keys;
}
public void VerifyEmail()
{
var asc = @"-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
i think i have found the issue.
I write this mail as - only text - message.
If another receive this email, my signature email and webaddress are i
nterpreted as links and will be changed by outlook to html elements.
Mit freundlichen Grüßen,
Sebastian Lutz
Baebeca Solutions - Lutz
E-Mail: [email protected] <mailto:[email protected]> Tel. Büro: 02261 - 9202935 Tel. Mobil: 0171 - 6431821
Web: https://www.baebeca.de <https://www.baebeca.de> PGP Key: 0x5AD0240C
-----BEGIN PGP SIGNATURE-----
iQEcBAEBCAAGBQJWPGGdAAoJEEKN+AfqKr312lEIAJ6i2C/8ZWoU3K2T0JWUXLRJ
Rycl2f9IqZkTOA4/x39QX+MuJ8N20ek5YDDeljZZdZnuEkBKvWZUZ/E6f49JJv6p
MBpNZgPua13fjERPIlNNV5CLxXDqhaH+jFaP8hCzthuNMKuW4iPy2wppX4f+EXbH
O5NMNUOtwD149S8y3DDx90Y6RdvQL9HYijDzHHpko1RqRL2lrkxrzOyTk0R0JoS2
C4h6ab6bixbmV6QBCtzOFpp6nkxWT27CFRIN0yz9t6psGZQgEVYP7RQlmFqS0jr4
9pTfjB6djoxrLxNiQMHsaH0UKeC+3AQdfvAloaIljULuBfa9BV8U5CXJBy1JUiM=
=K83z
-----END PGP SIGNATURE-----
";
var context = new CryptoContext(GetPasswordCallback, Pubring, Secring, "rsa", "sha-1");
var crypto = new PgpCrypto(context);
var encoding = Encoding.GetEncoding(28591);
var ret = crypto.VerifyClear(encoding.GetBytes(asc));
Assert.IsTrue(ret);
}
internal void VerifyEmail(Outlook.MailItem mailItem)
{
string mail = mailItem.Body;
Outlook.OlBodyFormat mailType = mailItem.BodyFormat;
if (Regex.IsMatch(mailItem.Body, _pgpSignedHeader) == false)
{
MessageBox.Show(
"Outlook Privacy cannot help here.",
"Mail is not signed",
MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
return;
}
var Context = new CryptoContext(Passphrase);
var Crypto = new PgpCrypto(Context);
try
{
if (Crypto.Verify(_encoding.GetBytes(mail)))
{
Context = Crypto.Context;
var message = "** Valid signature from \"" + Context.SignedByUserId +
"\" with KeyId " + Context.SignedByKeyId + ".\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = message + mailItem.Body;
}
}
else
{
Context = Crypto.Context;
var message = "** Invalid signature from \"" + Context.SignedByUserId +
"\" with KeyId " + Context.SignedByKeyId + ".\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = message + mailItem.Body;
}
}
}
catch (PublicKeyNotFoundException ex)
{
Context = Crypto.Context;
var message = "** Unable to verify signature, missing public key.\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = message + mailItem.Body;
}
}
catch (Exception ex)
{
this.Passphrase = null;
WriteErrorData("VerifyEmail", ex);
MessageBox.Show(
ex.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
private string SignEmail(string data, string key)
{
try
{
if (!PromptForPasswordAndKey())
return null;
var context = new CryptoContext(Passphrase);
var crypto = new PgpCrypto(context);
var headers = new Dictionary<string, string>();
headers["Version"] = "Outlook Privacy Plugin";
return crypto.SignClear(data, key, this._encoding, headers);
}
catch (CryptoException ex)
{
this.Passphrase = null;
WriteErrorData("SignEmail", ex);
MessageBox.Show(
ex.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return null;
}
}
private string SignAndEncryptEmail(byte[] data, string key, IList<string> recipients)
{
try
{
if (!PromptForPasswordAndKey())
return null;
var context = new CryptoContext(this.Passphrase);
var crypto = new PgpCrypto(context);
var headers = new Dictionary<string, string>();
headers["Version"] = "Outlook Privacy Plugin";
headers["Charset"] = _encoding.WebName;
return crypto.SignAndEncryptText(data, key, recipients, headers);
}
catch (Exception ex)
{
this.Passphrase = null;
WriteErrorData("SignAndEncryptEmail", ex);
MessageBox.Show(
ex.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
throw;
}
}
void HandlePgpMime(Outlook.MailItem mailItem, Outlook.Attachment encryptedMime,
Outlook.Attachment sigMime, string sigHash = "sha1")
{
logger.Trace("> HandlePgpMime");
CryptoContext Context = null;
byte[] cyphertext = null;
byte[] clearbytes = null;
var cleartext = mailItem.Body;
// 1. Decrypt attachement
if (encryptedMime != null)
{
logger.Trace("Decrypting cypher text.");
var tempfile = Path.GetTempFileName();
encryptedMime.SaveAsFile(tempfile);
cyphertext = File.ReadAllBytes(tempfile);
File.Delete(tempfile);
clearbytes = DecryptAndVerify(mailItem.To, cyphertext, out Context);
if (clearbytes == null)
return;
cleartext = this._encoding.GetString(clearbytes);
}
// 2. Verify signature
if (sigMime != null)
{
Context = new CryptoContext(PasswordCallback, _settings.Cipher, _settings.Digest);
var Crypto = new PgpCrypto(Context);
var mailType = mailItem.BodyFormat;
try
{
logger.Trace("Verify detached signature");
var tempfile = Path.GetTempFileName();
sigMime.SaveAsFile(tempfile);
var detachedsig = File.ReadAllText(tempfile);
File.Delete(tempfile);
// Build up a clearsignature format for validation
// the rules for are the same with the addition of two heaer fields.
// Ultimately we need to get these fields out of email itself.
// NOTE: encoding could be uppercase or lowercase. Try both.
// this is definetly hacky :/
var encoding = GetEncodingFromMail(mailItem);
var body = string.Empty;
// Try two different methods to get the mime body
try
{
body = encoding.GetString(
(byte[])mailItem.PropertyAccessor.GetProperty(
"http://schemas.microsoft.com/mapi/string/{4E3A7680-B77A-11D0-9DA5-00C04FD65685}/Internet Charset Body/0x00000102"));
}
catch (Exception)
{
body = (string)mailItem.PropertyAccessor.GetProperty(
"http://schemas.microsoft.com/mapi/proptag/0x1000001F"); // PR_BODY
}
var clearsigUpper = new StringBuilder();
clearsigUpper.Append(string.Format("-----BEGIN PGP SIGNED MESSAGE-----\r\nHash: {0}\r\nCharset: {1}\r\n\r\n", sigHash, encoding.BodyName.ToUpper()));
clearsigUpper.Append("Content-Type: text/plain; charset=");
clearsigUpper.Append(encoding.BodyName.ToUpper());
clearsigUpper.Append("\r\nContent-Transfer-Encoding: quoted-printable\r\n\r\n");
clearsigUpper.Append(PgpClearDashEscapeAndQuoteEncode(body));
clearsigUpper.Append("\r\n");
clearsigUpper.Append(detachedsig);
var clearsigLower = new StringBuilder(clearsigUpper.Length);
clearsigLower.Append(string.Format("-----BEGIN PGP SIGNED MESSAGE-----\r\nHash: {0}\r\nCharset: {1}\r\n\r\n", sigHash, encoding.BodyName.ToUpper()));
clearsigLower.Append("Content-Type: text/plain; charset=");
clearsigLower.Append(encoding.BodyName.ToLower());
clearsigLower.Append("\r\nContent-Transfer-Encoding: quoted-printable\r\n\r\n");
clearsigLower.Append(PgpClearDashEscapeAndQuoteEncode(body));
clearsigLower.Append("\r\n");
clearsigLower.Append(detachedsig);
logger.Trace(clearsigUpper.ToString());
if (Crypto.VerifyClear(_encoding.GetBytes(clearsigUpper.ToString())) || Crypto.VerifyClear(_encoding.GetBytes(clearsigLower.ToString())))
{
Context = Crypto.Context;
var message = "** " + string.Format(Localized.MsgValidSig,
Context.SignedByUserId, Context.SignedByKeyId) + "\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
mailItem.Body = message + mailItem.Body;
else
mailItem.HTMLBody = AddMessageToHtmlBody(mailItem.HTMLBody, message);
}
else
{
Context = Crypto.Context;
var message = "** " + string.Format(Localized.MsgInvalidSig,
Context.SignedByUserId, Context.SignedByKeyId) + "\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
mailItem.Body = message + mailItem.Body;
else
mailItem.HTMLBody = AddMessageToHtmlBody(mailItem.HTMLBody, message);
}
}
catch (PublicKeyNotFoundException ex)
{
logger.Debug(ex.ToString());
Context = Crypto.Context;
var message = "** " + Localized.MsgSigMissingPubKey + "\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
mailItem.Body = message + mailItem.Body;
else
mailItem.HTMLBody = AddMessageToHtmlBody(mailItem.HTMLBody, message);
}
catch (Exception ex)
{
logger.Debug(ex.ToString());
WriteErrorData("VerifyEmail", ex);
MessageBox.Show(
ex.Message,
Localized.ErrorDialogTitle,
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
return;
}
if (Context == null)
return;
// Extract files from MIME data
MimeMessage msg = null;
TextPart textPart = null;
MimeEntity htmlPart = null;
var isHtml = false;
using(var sin = new MemoryStream(clearbytes))
{
var parser = new MimeParser(sin);
msg = parser.ParseMessage();
var iter = new MimeIterator(msg);
while(iter.MoveNext())
{
var part = iter.Current as TextPart;
if (part == null)
continue;
if (part.IsAttachment)
continue;
// message could include both text and html
// if we find html use that over text.
if (part.IsHtml)
{
htmlPart = part;
isHtml = true;
}
else
{
textPart = part;
}
}
}
var DecryptAndVerifyHeaderMessage = "** ";
if (Context.IsEncrypted)
DecryptAndVerifyHeaderMessage += Localized.MsgDecrypt + " ";
if (Context.FailedIntegrityCheck)
DecryptAndVerifyHeaderMessage += Localized.MsgFailedIntegrityCheck + " ";
if (Context.IsSigned && Context.SignatureValidated)
{
DecryptAndVerifyHeaderMessage += string.Format(Localized.MsgValidSig,
Context.SignedByUserId, Context.SignedByKeyId);
}
else if (Context.IsSigned)
{
DecryptAndVerifyHeaderMessage += string.Format(Localized.MsgInvalidSig,
Context.SignedByUserId, Context.SignedByKeyId);
}
else
DecryptAndVerifyHeaderMessage += Localized.MsgUnsigned;
DecryptAndVerifyHeaderMessage += "\n\n";
if(isHtml)
{
var htmlBody = msg.HtmlBody;
var related = msg.Body as MultipartRelated;
var doc = new HtmlAgilityPack.HtmlDocument();
var savedImages = new List<MimePart>();
doc.LoadHtml(htmlBody);
// Find any embedded images
foreach (var img in doc.DocumentNode.SelectNodes("//img[@src]"))
{
var src = img.Attributes["src"];
Uri uri;
if (src == null || src.Value == null)
continue;
// parse the <img src=...> attribute value into a Uri
if (Uri.IsWellFormedUriString(src.Value, UriKind.Absolute))
uri = new Uri(src.Value, UriKind.Absolute);
else
uri = new Uri(src.Value, UriKind.Relative);
// locate the index of the attachment within the multipart/related (if it exists)
string imageCid = src.Value.Substring(4);
var iter = new MimeIterator(msg);
MimePart attachment = null;
while (iter.MoveNext())
{
if (iter.Current.ContentId == imageCid)
{
attachment = iter.Current as MimePart;
break;
}
}
if (attachment == null)
continue;
string fileName;
// save the attachment (if we haven't already saved it)
if (!savedImages.Contains(attachment))
{
fileName = attachment.FileName;
if (string.IsNullOrEmpty(fileName))
fileName = Guid.NewGuid().ToString();
using (var stream = File.Create(fileName))
attachment.ContentObject.DecodeTo(stream);
try
{
var att = mailItem.Attachments.Add(fileName, Outlook.OlAttachmentType.olEmbeddeditem, null, "");
att.PropertyAccessor.SetProperty("http://schemas.microsoft.com/mapi/proptag/0x3712001E", imageCid);
savedImages.Add(attachment);
}
finally
{
// try not to leak temp files :)
File.Delete(fileName);
}
}
}
mailItem.BodyFormat = Outlook.OlBodyFormat.olFormatHTML;
mailItem.HTMLBody = AddMessageToHtmlBody(htmlBody, DecryptAndVerifyHeaderMessage);
}
else
{
// NOTE: For some reason we cannot change the BodyFormat once it's set.
// So if we are set to HTML we need to wrap the plain text so it's
// displayed okay. Also of course prevent XSS.
if (mailItem.BodyFormat == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = DecryptAndVerifyHeaderMessage + msg.TextBody;
}
else
{
var sb = new StringBuilder(msg.TextBody.Length + 100);
sb.Append("<html><body><pre>");
sb.Append(WebUtility.HtmlEncode(DecryptAndVerifyHeaderMessage));
sb.Append(WebUtility.HtmlEncode(msg.TextBody));
sb.Append("</pre></body></html>");
mailItem.HTMLBody = sb.ToString();
}
}
// NOTE: Removing existing attachments is perminant, even if the message
// is not saved.
foreach (var mimeAttachment in msg.Attachments)
{
var fileName = mimeAttachment.FileName;
var tempFile = Path.Combine(Path.GetTempPath(), fileName);
using (var fout = File.OpenWrite(tempFile))
{
mimeAttachment.ContentObject.DecodeTo(fout);
}
mailItem.Attachments.Add(tempFile, Outlook.OlAttachmentType.olByValue, 1, fileName);
File.Delete(tempFile);
}
}
public void OnAttachPublicKeyButton(Office.IRibbonControl control)
{
Outlook.MailItem mailItem = ((Outlook.Inspector)control.Context).CurrentItem as Outlook.MailItem;
if (mailItem == null)
{
// TODO - Generate a log message
MessageBox.Show("Error, mailItem was null.");
return;
}
var smtp = Globals.OutlookPrivacyPlugin.GetSMTPAddress(mailItem);
var crypto = new Deja.Crypto.BcPgp.PgpCrypto(new Deja.Crypto.BcPgp.CryptoContext());
var publicKey = crypto.PublicKey(smtp, new Dictionary<string, string>());
if(publicKey == null)
{
// TODO - Generate log message
MessageBox.Show("Error, unable to find public key to attach.");
return;
}
var tempFile = Path.Combine(Path.GetTempPath(), "public_key.gpg");
File.WriteAllText(tempFile, publicKey);
try
{
mailItem.Attachments.Add(
tempFile,
Outlook.OlAttachmentType.olByValue,
1,
"public_key.gpg");
mailItem.Save();
}
finally
{
File.Delete(tempFile);
}
}
void HandlePgpMime(Outlook.MailItem mailItem, Microsoft.Office.Interop.Outlook.Attachment encryptedMime,
Microsoft.Office.Interop.Outlook.Attachment sigMime, string sigHash = "sha1")
{
logger.Trace("> HandlePgpMime");
CryptoContext Context = null;
string sig = null;
byte[] cyphertext = null;
string cleartext = mailItem.Body;
// 1. Decrypt attachement
if (encryptedMime != null)
{
logger.Trace("Decrypting cypher text.");
var tempfile = Path.GetTempFileName();
encryptedMime.SaveAsFile(tempfile);
cyphertext = File.ReadAllBytes(tempfile);
File.Delete(tempfile);
var clearbytes = DecryptAndVerify(mailItem.To, cyphertext, out Context);
if (clearbytes == null)
return;
cleartext = this._encoding.GetString(clearbytes);
}
// 2. Verify signature
if (sigMime != null)
{
Context = new CryptoContext(Passphrase);
var Crypto = new PgpCrypto(Context);
Outlook.OlBodyFormat mailType = mailItem.BodyFormat;
try
{
logger.Trace("Verify detached signature");
var tempfile = Path.GetTempFileName();
sigMime.SaveAsFile(tempfile);
var detachedsig = File.ReadAllText(tempfile);
File.Delete(tempfile);
// Build up a clearsignature format for validation
// the rules for are the same with the addition of two heaer fields.
// Ultimately we need to get these fields out of email itself.
var encoding = GetEncodingFromMail(mailItem);
var clearsig = string.Format("-----BEGIN PGP SIGNED MESSAGE-----\r\nHash: {0}\r\n\r\n", sigHash);
//clearsig += "Content-Type: text/plain; charset=ISO-8859-1\r\nContent-Transfer-Encoding: quoted-printable\r\n\r\n";
clearsig += "Content-Type: text/plain; charset=" +
encoding.BodyName.ToUpper()+
"\r\nContent-Transfer-Encoding: quoted-printable\r\n\r\n";
clearsig += PgpClearDashEscapeAndQuoteEncode(
encoding.GetString(
(byte[])mailItem.PropertyAccessor.GetProperty(
"http://schemas.microsoft.com/mapi/string/{4E3A7680-B77A-11D0-9DA5-00C04FD65685}/Internet Charset Body/0x00000102")));
clearsig += "\r\n"+detachedsig;
logger.Trace(clearsig);
if (Crypto.VerifyClear(_encoding.GetBytes(clearsig)))
{
Context = Crypto.Context;
var message = "** Valid signature from \"" + Context.SignedByUserId +
"\" with KeyId " + Context.SignedByKeyId + ".\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = message + mailItem.Body;
}
}
else
{
Context = Crypto.Context;
var message = "** Invalid signature from \"" + Context.SignedByUserId +
"\" with KeyId " + Context.SignedByKeyId + ".\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = message + mailItem.Body;
}
}
}
catch (PublicKeyNotFoundException ex)
{
logger.Debug(ex.ToString());
Context = Crypto.Context;
var message = "** Unable to verify signature, missing public key.\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = message + mailItem.Body;
}
}
catch (Exception ex)
{
logger.Debug(ex.ToString());
this.Passphrase = null;
WriteErrorData("VerifyEmail", ex);
MessageBox.Show(
ex.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
return;
}
if (Context == null)
return;
// Extract files from MIME data
SharpMessage msg = new SharpMessage(cleartext);
string body = mailItem.Body;
var DecryptAndVerifyHeaderMessage = "** ";
if (Context.IsEncrypted)
DecryptAndVerifyHeaderMessage += "Message decrypted. ";
if (Context.FailedIntegrityCheck)
DecryptAndVerifyHeaderMessage += "Failed integrity check! ";
if (Context.IsSigned && Context.SignatureValidated)
{
DecryptAndVerifyHeaderMessage += "Valid signature from \"" + Context.SignedByUserId +
"\" with KeyId " + Context.SignedByKeyId;
}
else if (Context.IsSigned)
{
DecryptAndVerifyHeaderMessage += "Invalid signature from \"" + Context.SignedByUserId +
"\" with KeyId " + Context.SignedByKeyId + ".";
}
else
DecryptAndVerifyHeaderMessage += "Message was unsigned.";
DecryptAndVerifyHeaderMessage += "\n\n";
if (mailItem.BodyFormat == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = DecryptAndVerifyHeaderMessage + msg.Body;
}
else if (mailItem.BodyFormat == Outlook.OlBodyFormat.olFormatHTML)
{
if (!msg.Body.TrimStart().ToLower().StartsWith("<html"))
{
body = DecryptAndVerifyHeaderMessage + msg.Body;
body = System.Net.WebUtility.HtmlEncode(body);
body = body.Replace("\n", "<br />");
mailItem.HTMLBody = "<html><head></head><body>" + body + "</body></html>";
}
else
{
// Find <body> tag and insert our message.
var matches = Regex.Match(msg.Body, @"(<body[^<]*>)", RegexOptions.IgnoreCase);
if (matches.Success)
{
var bodyTag = matches.Groups[1].Value;
// Insert decryption message.
mailItem.HTMLBody = msg.Body.Replace(
bodyTag,
bodyTag + DecryptAndVerifyHeaderMessage.Replace("\n", "<br />"));
}
else
mailItem.HTMLBody = msg.Body;
}
}
else
{
// May cause mail item not to open correctly
mailItem.BodyFormat = Outlook.OlBodyFormat.olFormatPlain;
mailItem.Body = msg.Body;
}
foreach (SharpAttachment mimeAttachment in msg.Attachments)
{
mimeAttachment.Stream.Position = 0;
var fileName = mimeAttachment.Name;
var tempFile = Path.Combine(Path.GetTempPath(), fileName);
using (FileStream fout = File.OpenWrite(tempFile))
{
mimeAttachment.Stream.CopyTo(fout);
}
mailItem.Attachments.Add(tempFile, Outlook.OlAttachmentType.olByValue, 1, fileName);
}
//mailItem.Save();
}
internal void VerifyEmail(Outlook.MailItem mailItem)
{
var encoding = GetEncodingFromMail(mailItem);
var mail = string.Empty;
// Try two different methods to get the message body
try
{
mail = encoding.GetString(
(byte[])mailItem.PropertyAccessor.GetProperty(
"http://schemas.microsoft.com/mapi/string/{4E3A7680-B77A-11D0-9DA5-00C04FD65685}/Internet Charset Body/0x00000102"));
}
catch (Exception)
{
try
{
mail = (string)mailItem.PropertyAccessor.GetProperty(
"http://schemas.microsoft.com/mapi/proptag/0x1000001F"); // PR_BODY
}
catch (Exception)
{
mail = mailItem.Body;
}
}
if (Regex.IsMatch(mail, _pgpSignedHeader) == false)
{
MessageBox.Show(
Localized.ErrorMsgNotSigned,
Localized.ErrorDialogTitle,
MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
return;
}
var context = new CryptoContext(PasswordCallback, _settings.Cipher, _settings.Digest);
var crypto = new PgpCrypto(context);
mailItem.BodyFormat = Outlook.OlBodyFormat.olFormatPlain;
try
{
var message = string.Empty;
if (crypto.Verify(_encoding.GetBytes(mail)))
message = "** " + string.Format(Localized.MsgValidSig,
crypto.Context.SignedByUserId, crypto.Context.SignedByKeyId) + "\n\n";
else
message = "** " + string.Format(Localized.MsgInvalidSig,
crypto.Context.SignedByUserId, crypto.Context.SignedByKeyId) + "\n\n";
mailItem.Body = message + mailItem.Body;
}
catch (PublicKeyNotFoundException)
{
var message = "** "+ Localized.MsgSigMissingPubKey+"\n\n";
mailItem.Body = message + mailItem.Body;
}
catch (Exception ex)
{
WriteErrorData("VerifyEmail", ex);
MessageBox.Show(
ex.Message,
Localized.ErrorDialogTitle,
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
private string SignAndEncryptEmail(byte[] data, string key, IList<string> recipients)
{
try
{
var context = new CryptoContext(PasswordCallback, _settings.Cipher, _settings.Digest);
var crypto = new PgpCrypto(context);
var headers = new Dictionary<string, string>();
headers["Version"] = Localized.DialogTitle;
headers["Charset"] = _encoding.WebName;
return crypto.SignAndEncryptText(data, key, recipients, headers);
}
catch (Exception ex)
{
WriteErrorData("SignAndEncryptEmail", ex);
MessageBox.Show(
ex.Message,
Localized.ErrorDialogTitle,
MessageBoxButtons.OK,
MessageBoxIcon.Error);
throw;
}
}
internal void VerifyEmail(Outlook.MailItem mailItem)
{
string mail = mailItem.Body;
Outlook.OlBodyFormat mailType = mailItem.BodyFormat;
if (Regex.IsMatch(mailItem.Body, _pgpSignedHeader) == false)
{
MessageBox.Show(
Localized.ErrorMsgNotSigned,
"Mail is not signed",
MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
return;
}
var Context = new CryptoContext(PasswordCallback, _settings.Cipher, _settings.Digest);
var Crypto = new PgpCrypto(Context);
try
{
if (Crypto.Verify(_encoding.GetBytes(mail)))
{
Context = Crypto.Context;
var message = "** " + string.Format(Localized.MsgValidSig,
Context.SignedByUserId, Context.SignedByKeyId) + "\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = message + mailItem.Body;
}
}
else
{
Context = Crypto.Context;
var message = "** " + string.Format(Localized.MsgInvalidSig,
Context.SignedByUserId, Context.SignedByKeyId) + "\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = message + mailItem.Body;
}
}
}
catch (PublicKeyNotFoundException)
{
Context = Crypto.Context;
string message = "** "+ Localized.MsgSigMissingPubKey+"\n\n";
if (mailType == Outlook.OlBodyFormat.olFormatPlain)
{
mailItem.Body = message + mailItem.Body;
}
}
catch (Exception ex)
{
WriteErrorData("VerifyEmail", ex);
MessageBox.Show(
ex.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
private string SignAndEncryptAttachment(byte[] data, string key, IList<string> recipients)
{
try
{
var context = new CryptoContext(PasswordCallback, _settings.Cipher, _settings.Digest);
var crypto = new PgpCrypto(context);
var headers = new Dictionary<string, string>();
headers["Version"] = "Outlook Privacy Plugin";
headers["Charset"] = _encoding.WebName;
return crypto.SignAndEncryptBinary(data, key, recipients, headers);
}
catch (Exception ex)
{
MessageBox.Show(
ex.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
throw;
}
}
private string SignEmail(string data, string key)
{
try
{
var context = new CryptoContext(PasswordCallback, _settings.Cipher, _settings.Digest);
var crypto = new PgpCrypto(context);
var headers = new Dictionary<string, string>();
headers["Version"] = "Outlook Privacy Plugin";
return crypto.SignClear(data, key, this._encoding, headers);
}
catch (CryptoException ex)
{
WriteErrorData("SignEmail", ex);
MessageBox.Show(
ex.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return null;
}
}
public void DecryptHiddenRecipientRsaNoKeyFound()
{
var asc = @"-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.13 (MingW32)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=m8iN
-----END PGP MESSAGE-----
";
var context = new CryptoContext(GetPasswordCallback, Pubring, Secring, "rsa", "sha-1");
var crypto = new PgpCrypto(context);
try
{
crypto.DecryptAndVerify(Encoding.UTF8.GetBytes(asc));
}
catch (SecretKeyNotFoundException)
{
return;
}
Assert.True(false);
}
byte[] DecryptAndVerify(string to, byte[] data, out CryptoContext outContext)
{
DecryptAndVerifyHeaderMessage = "";
outContext = null;
if (!PromptForPasswordAndKey())
return null;
var Context = new CryptoContext(Passphrase);
var Crypto = new PgpCrypto(Context);
try
{
var cleartext = Crypto.DecryptAndVerify(data, _settings.IgnoreIntegrityCheck);
Context = Crypto.Context;
// NOT USED YET.
//DecryptAndVerifyHeaderMessage = "** ";
//if (Context.IsEncrypted)
// DecryptAndVerifyHeaderMessage += "Message decrypted. ";
//if (Context.IsSigned && Context.SignatureValidated)
//{
// DecryptAndVerifyHeaderMessage += "Valid signature from \"" + Context.SignedByUserId +
// "\" with KeyId " + Context.SignedByKeyId;
//}
//else if (Context.IsSigned)
//{
// DecryptAndVerifyHeaderMessage += "Invalid signature from \"" + Context.SignedByUserId +
// "\" with KeyId " + Context.SignedByKeyId + ".";
//}
//else
// DecryptAndVerifyHeaderMessage += "Message was unsigned.";
//DecryptAndVerifyHeaderMessage += "\n\n";
outContext = Context;
return cleartext;
}
catch (CryptoException ex)
{
this.Passphrase = null;
WriteErrorData("DecryptAndVerify", ex);
MessageBox.Show(
ex.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
catch (Exception e)
{
this.Passphrase = null;
WriteErrorData("DecryptAndVerify", e);
if (e.Message.ToLower().StartsWith("checksum"))
{
MessageBox.Show(
"Incorrect passphrase possibly entered.",
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
else
{
MessageBox.Show(
e.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
return null;
}
byte[] DecryptAndVerify(string to, byte[] data, out CryptoContext outContext)
{
DecryptAndVerifyHeaderMessage = "";
outContext = null;
var Context = new CryptoContext(PasswordCallback, _settings.Cipher, _settings.Digest);
var Crypto = new PgpCrypto(Context);
try
{
var cleartext = Crypto.DecryptAndVerify(data, _settings.IgnoreIntegrityCheck);
Context = Crypto.Context;
DecryptAndVerifyHeaderMessage = "** ";
if (Context.IsEncrypted)
DecryptAndVerifyHeaderMessage += Localized.MsgDecrypt + " ";
if (Context.IsSigned && Context.SignatureValidated)
{
DecryptAndVerifyHeaderMessage += string.Format(Localized.MsgValidSig,
Context.SignedByUserId, Context.SignedByKeyId);
}
else if (Context.IsSigned)
{
DecryptAndVerifyHeaderMessage += string.Format(Localized.MsgInvalidSig,
Context.SignedByUserId, Context.SignedByKeyId);
}
else
DecryptAndVerifyHeaderMessage += Localized.MsgUnsigned;
DecryptAndVerifyHeaderMessage += "\n\n";
outContext = Context;
return cleartext;
}
catch (CryptoException ex)
{
WriteErrorData("DecryptAndVerify", ex);
MessageBox.Show(
ex.Message,
Localized.ErrorDialogTitle,
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
catch (Exception e)
{
WriteErrorData("DecryptAndVerify", e);
if (e.Message.ToLower().StartsWith("checksum"))
{
ClearLastPassword();
MessageBox.Show(
Localized.ErrorBadPassphrase,
Localized.ErrorDialogTitle,
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
else
{
MessageBox.Show(
e.Message,
Localized.ErrorDialogTitle,
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
return null;
}
private string EncryptEmail(byte[] data, IList<string> recipients)
{
try
{
var context = new CryptoContext();
var crypto = new PgpCrypto(context);
var headers = new Dictionary<string, string>();
headers["Version"] = "Outlook Privacy Plugin";
headers["Charset"] = _encoding.WebName;
return crypto.Encrypt(data, recipients, headers);
}
catch (CryptoException ex)
{
this.Passphrase = null;
WriteErrorData("EncryptEmail", ex);
MessageBox.Show(
ex.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return null;
}
catch (Exception e)
{
this.Passphrase = null;
WriteErrorData("EncryptEmail", e);
MessageBox.Show(
e.Message,
"Outlook Privacy Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return null;
}
}
public IList<KeyItem> GetKeysForEncryption()
{
var crypto = new PgpCrypto(new CryptoContext());
var keys = new List<KeyItem>();
foreach (PgpPublicKey key in crypto.GetPublicKeyUserIdsForEncryption())
{
foreach (string user in key.GetUserIds())
{
var match = Regex.Match(user, @"<(.*)>");
if (!match.Success)
continue;
var k = new KeyItem();
k.Key = match.Groups[1].Value;
k.KeyDisplay = user;
var fingerprint = key.GetFingerprint();
k.KeyId =
fingerprint[fingerprint.Length - 4].ToString("X2") +
fingerprint[fingerprint.Length - 3].ToString("X2") +
fingerprint[fingerprint.Length - 2].ToString("X2") +
fingerprint[fingerprint.Length - 1].ToString("X2");
if (key.GetValidSeconds() != 0)
k.Expiry = key.CreationTime.AddSeconds(key.GetValidSeconds()).ToShortDateString();
keys.Add(k);
}
}
return keys;
}
// Not working yet
//[Test]
public void ClearTextSignTest()
{
var context = new CryptoContext(
GetPasswordCallback,
@"C:\projects\OutlookPrivacyPlugin\Deja.Crypto.Test\pubring.gpg",
@"C:\projects\OutlookPrivacyPlugin\Deja.Crypto.Test\secring.gpg",
"rsa", "sha-1");
var crypto = new PgpCrypto(context);
var dataDir = @"C:\projects\OutlookPrivacyPlugin\Deja.Crypto.Test\data";
var signKey = "*****@*****.**";
var sign = string.Empty;
foreach (var file in Directory.EnumerateFiles(dataDir, "*.bin"))
{
Console.WriteLine("ClearTextSignTest: " + file);
context.Digest = "sha-1";
sign = crypto.SignClear(File.ReadAllText(file), signKey, Encoding.UTF8, new Dictionary<string, string>());
File.WriteAllText(@"c:\temp\test.bin", sign);
Assert.AreEqual(File.ReadAllText(file + ".rsa.sha1.clearsign"), sign);
context.Digest = "SHA-256";
sign = crypto.SignClear(File.ReadAllText(file), signKey, Encoding.UTF8, new Dictionary<string, string>());
Assert.AreEqual(File.ReadAllText(file + ".rsa.sha256.clearsign"), sign);
context.Digest = "SHA-1";
sign = crypto.Sign(File.ReadAllBytes(file), signKey, new Dictionary<string, string>());
File.WriteAllText(@"c:\temp\test.bin", sign);
Assert.AreEqual(File.ReadAllText(file + ".rsa.sha1.sign"), sign);
}
}
public IList<KeyItem> GetKeysForSigning()
{
var crypto = new PgpCrypto(new CryptoContext());
var keys = new List<KeyItem>();
foreach (var key in crypto.GetPublicKeyUserIdsForSign())
{
var match = Regex.Match(key, @"<(.*)>");
if (!match.Success)
continue;
var k = new KeyItem();
k.Key = match.Groups[1].Value;
k.KeyDisplay = key;
keys.Add(k);
}
return keys;
}
private string SignEmail(string data, string key, bool wrapLines = true)
{
try
{
var context = new CryptoContext(PasswordCallback, _settings.Cipher, _settings.Digest);
var crypto = new PgpCrypto(context);
var headers = new Dictionary<string, string>();
headers["Version"] = Localized.DialogTitle;
return crypto.SignClear(data, key, this._encoding, headers, wrapLines);
}
catch (CryptoException ex)
{
WriteErrorData("SignEmail", ex);
MessageBox.Show(
ex.Message,
Localized.ErrorDialogTitle,
MessageBoxButtons.OK,
MessageBoxIcon.Error);
return null;
}
}
public void DecryptRsa()
{
var asc = @"-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.13 (MingW32)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=ARyr
-----END PGP MESSAGE-----
";
var context = new CryptoContext(GetPasswordCallback, Pubring, Secring, "rsa", "sha-1");
var crypto = new PgpCrypto(context);
var clear = crypto.DecryptAndVerify(Encoding.UTF8.GetBytes(asc));
Assert.NotNull(clear);
Assert.AreEqual(File.ReadAllText(Path.Combine(Data, "msg1.bin")),
Encoding.UTF8.GetString(clear));
}