Pass Encrypt addin

Tomboy.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 14
-VisualStudioVersion = 14.0.25420.1
+# Visual Studio 15
+VisualStudioVersion = 15.0.26403.0
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tomboy", "Tomboy.csproj", "{315DBB30-1461-4A41-A23F-A888D84E1EA0}"
 EndProject
@@ -25,7 +25,9 @@ Project("{930C7802-8A8C-48F9-8165-68863BCCD9DD}") = "Setup", "Setup\Setup.wixpro
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PrintNotes", "Tomboy\Addins\PrintNotes\PrintNotes.csproj", "{A13FBE2F-C5FF-4E8D-B687-4A309D3FE08F}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Underline", "Tomboy\Addins\Underline\Underline.csproj", "{15A0F2C4-9BAD-11DE-B022-C19356D89593}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Underline", "Tomboy\Addins\Underline\Underline.csproj", "{15A0F2C4-C5FF-11CF-B022-C19356D89593}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PassEncrypt", "Tomboy\Addins\PassEncrypt\PassEncrypt.csproj", "{15AC9F12-9BAD-11DE-B022-C97A56D78593}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WebSyncService", "Tomboy\Addins\WebSyncService\WebSyncService.csproj", "{A207AD10-9C5E-495F-9DEF-E7321A6FCB8F}"
 EndProject
@@ -104,12 +106,18 @@ Global
 		{A13FBE2F-C5FF-4E8D-B687-4A309D3FE08F}.Mac|Any CPU.Build.0 = Mac|Any CPU
 		{A13FBE2F-C5FF-4E8D-B687-4A309D3FE08F}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{A13FBE2F-C5FF-4E8D-B687-4A309D3FE08F}.Release|Any CPU.Build.0 = Release|Any CPU
-		{15A0F2C4-9BAD-11DE-B022-C19356D89593}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{15A0F2C4-9BAD-11DE-B022-C19356D89593}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{15A0F2C4-9BAD-11DE-B022-C19356D89593}.Mac|Any CPU.ActiveCfg = Mac|Any CPU
-		{15A0F2C4-9BAD-11DE-B022-C19356D89593}.Mac|Any CPU.Build.0 = Mac|Any CPU
-		{15A0F2C4-9BAD-11DE-B022-C19356D89593}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{15A0F2C4-9BAD-11DE-B022-C19356D89593}.Release|Any CPU.Build.0 = Release|Any CPU
+		{15A0F2C4-C5FF-11CF-B022-C19356D89593}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{15A0F2C4-C5FF-11CF-B022-C19356D89593}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{15A0F2C4-C5FF-11CF-B022-C19356D89593}.Mac|Any CPU.ActiveCfg = Mac|Any CPU
+		{15A0F2C4-C5FF-11CF-B022-C19356D89593}.Mac|Any CPU.Build.0 = Mac|Any CPU
+		{15A0F2C4-C5FF-11CF-B022-C19356D89593}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{15A0F2C4-C5FF-11CF-B022-C19356D89593}.Release|Any CPU.Build.0 = Release|Any CPU
+		{15AC9F12-9BAD-11DE-B022-C97A56D78593}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{15AC9F12-9BAD-11DE-B022-C97A56D78593}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{15AC9F12-9BAD-11DE-B022-C97A56D78593}.Mac|Any CPU.ActiveCfg = Mac|Any CPU
+		{15AC9F12-9BAD-11DE-B022-C97A56D78593}.Mac|Any CPU.Build.0 = Mac|Any CPU
+		{15AC9F12-9BAD-11DE-B022-C97A56D78593}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{15AC9F12-9BAD-11DE-B022-C97A56D78593}.Release|Any CPU.Build.0 = Release|Any CPU
 		{A207AD10-9C5E-495F-9DEF-E7321A6FCB8F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{A207AD10-9C5E-495F-9DEF-E7321A6FCB8F}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A207AD10-9C5E-495F-9DEF-E7321A6FCB8F}.Mac|Any CPU.ActiveCfg = Mac|Any CPU

Tomboy/Addins/PassEncrypt/Encrypter.cs

@@ -0,0 +1,112 @@
+//According to https://stackoverflow.com/questions/10168240/encrypting-decrypting-a-string-in-c-sharp CraigTP answer.
+using System;
+using System.Text;
+using System.Security.Cryptography;
+using System.IO;
+using System.Linq;
+
+namespace Tomboy.PassEncrypt
+{
+    public static class Encrypter
+    {
+        // This constant is used to determine the keysize of the encryption algorithm in bits.
+        // We divide this by 8 within the code below to get the equivalent number of bytes.
+        private const int Keysize = 256;
+
+        // This constant determines the number of iterations for the password bytes generation function.
+        private const int DerivationIterations = 1000;
+
+        public static string Encrypt(string plainText, string passPhrase)
+        {
+            // Salt and IV is randomly generated each time, but is preprended to encrypted cipher text
+            // so that the same Salt and IV values can be used when decrypting.  
+            var saltStringBytes = Generate256BitsOfRandomEntropy();
+            var ivStringBytes = Generate256BitsOfRandomEntropy();
+            var plainTextBytes = Encoding.Unicode.GetBytes(plainText);
+            using (var password = new Rfc2898DeriveBytes(passPhrase, saltStringBytes, DerivationIterations))
+            {
+                var keyBytes = password.GetBytes(Keysize / 8);
+                using (var symmetricKey = new RijndaelManaged())
+                {
+                    symmetricKey.BlockSize = 256;
+                    symmetricKey.Mode = CipherMode.CBC;
+                    symmetricKey.Padding = PaddingMode.PKCS7;
+                    using (var encryptor = symmetricKey.CreateEncryptor(keyBytes, ivStringBytes))
+                    {
+                        using (var memoryStream = new MemoryStream())
+                        {
+                            using (var cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write))
+                            {
+                                cryptoStream.Write(plainTextBytes, 0, plainTextBytes.Length);
+                                cryptoStream.FlushFinalBlock();
+                                // Create the final bytes as a concatenation of the random salt bytes, the random iv bytes and the cipher bytes.
+                                var cipherTextBytes = saltStringBytes;
+                                cipherTextBytes = cipherTextBytes.Concat(ivStringBytes).ToArray();
+                                cipherTextBytes = cipherTextBytes.Concat(memoryStream.ToArray()).ToArray();
+                                memoryStream.Close();
+                                cryptoStream.Close();
+                                return Convert.ToBase64String(cipherTextBytes);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        public static string Decrypt(string cipherText, string passPhrase)
+        {
+            try
+            {
+                // Get the complete stream of bytes that represent:
+                // [32 bytes of Salt] + [32 bytes of IV] + [n bytes of CipherText]
+                var cipherTextBytesWithSaltAndIv = Convert.FromBase64String(cipherText);
+                // Get the saltbytes by extracting the first 32 bytes from the supplied cipherText bytes.
+                var saltStringBytes = cipherTextBytesWithSaltAndIv.Take(Keysize / 8).ToArray();
+                // Get the IV bytes by extracting the next 32 bytes from the supplied cipherText bytes.
+                var ivStringBytes = cipherTextBytesWithSaltAndIv.Skip(Keysize / 8).Take(Keysize / 8).ToArray();
+                // Get the actual cipher text bytes by removing the first 64 bytes from the cipherText string.
+                var cipherTextBytes = cipherTextBytesWithSaltAndIv.Skip((Keysize / 8) * 2).Take(cipherTextBytesWithSaltAndIv.Length - ((Keysize / 8) * 2)).ToArray();
+
+                using (var password = new Rfc2898DeriveBytes(passPhrase, saltStringBytes, DerivationIterations))
+                {
+                    var keyBytes = password.GetBytes(Keysize / 8);
+                    using (var symmetricKey = new RijndaelManaged())
+                    {
+                        symmetricKey.BlockSize = 256;
+                        symmetricKey.Mode = CipherMode.CBC;
+                        symmetricKey.Padding = PaddingMode.PKCS7;
+                        using (var decryptor = symmetricKey.CreateDecryptor(keyBytes, ivStringBytes))
+                        {
+                            using (var memoryStream = new MemoryStream(cipherTextBytes))
+                            {
+                                using (var cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read))
+                                {
+                                    var plainTextBytes = new byte[cipherTextBytes.Length];
+                                    var decryptedByteCount = cryptoStream.Read(plainTextBytes, 0, plainTextBytes.Length);
+                                    memoryStream.Close();
+                                    cryptoStream.Close();
+                                    return Encoding.Unicode.GetString(plainTextBytes, 0, decryptedByteCount);
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            catch (CryptographicException)
+            {
+                return Encrypt(cipherText, passPhrase);
+            }
+        }
+
+        private static byte[] Generate256BitsOfRandomEntropy()
+        {
+            var randomBytes = new byte[32]; // 32 Bytes will give us 256 bits.
+            using (var rngCsp = new RNGCryptoServiceProvider())
+            {
+                // Fill the array with cryptographically secure random bytes.
+                rngCsp.GetBytes(randomBytes);
+            }
+            return randomBytes;
+        }
+    }
+}

Tomboy/Addins/PassEncrypt/Makefile.am

@@ -0,0 +1,41 @@
+include $(top_srcdir)/Makefile.include
+
+CSFLAGS = 		\
+	-debug 		\
+	-define:DEBUG 	\
+	-target:library
+
+ASSEMBLIES = 					\
+	$(LINK_TOMBOY_EXE)			\
+	$(GTKSHARP_LIBS) 				\
+	$(LINK_MONO_ADDINS)			\
+	-r:Mono.Posix
+
+ADDIN_NAME = PassEncrypt
+TARGET = $(top_builddir)/bin/addins/$(ADDIN_NAME).dll
+CSFILES = \
+	$(srcdir)/PassEncryptMenuItem.cs		\
+	$(srcdir)/PassEncryptNoteAddin.cs		\
+	$(srcdir)/PassEncryptTag.cs
+RESOURCES = \
+	-resource:$(srcdir)/$(ADDIN_NAME).addin.xml
+
+$(TARGET).mdb: $(TARGET)
+
+$(TARGET): $(CSFILES) $(TOMBOY_EXE_PATH)
+	mkdir -p `dirname $(TARGET)` && $(CSC) -out:$@ $(CSFLAGS) $(ASSEMBLIES) $(CSFILES) $(RESOURCES)
+
+
+addinsdir = $(pkglibdir)/addins
+addins_DATA = 			\
+	$(TARGET)		\
+	$(TARGET).mdb
+
+EXTRA_DIST =            	\
+	$(CSFILES) \
+	$(srcdir)/$(ADDIN_NAME).addin.xml
+
+CLEANFILES =				\
+	$(TARGET).mdb \
+	$(TARGET)
+

Tomboy/Addins/PassEncrypt/PassEncrypt-mac.csproj

@@ -0,0 +1,95 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="3.5">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{15A0F2C4-9BAD-11DE-B022-C19356D89593}</ProjectGuid>
+    <ProductVersion>9.0.21022</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <OutputType>Library</OutputType>
+    <NoStandardLibraries>false</NoStandardLibraries>
+    <AssemblyName>PassEncrypt</AssemblyName>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <RootNamespace>PassEncrypt</RootNamespace>
+    <RunPostBuildEvent>OnBuildSuccess</RunPostBuildEvent>
+    <AllowUnsafeBlocks>False</AllowUnsafeBlocks>
+    <NoStdLib>False</NoStdLib>
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>..\..\..\bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <CheckForOverflowUnderflow>False</CheckForOverflowUnderflow>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Platform)' == 'AnyCPU' ">
+    <RegisterForComInterop>False</RegisterForComInterop>
+    <GenerateSerializationAssemblies>Auto</GenerateSerializationAssemblies>
+    <BaseAddress>4194304</BaseAddress>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="gtk-sharp, Version=2.12.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\..\..\..\..\Library\Frameworks\Mono.framework\Versions\Current\lib\mono\gac\gtk-sharp\2.12.0.0__35e10195dab3c99f\gtk-sharp.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="glib-sharp, Version=2.12.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\..\..\..\..\Library\Frameworks\Mono.framework\Versions\Current\lib\mono\gac\glib-sharp\2.12.0.0__35e10195dab3c99f\glib-sharp.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="gdk-sharp, Version=2.12.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\..\..\..\..\Library\Frameworks\Mono.framework\Versions\Current\lib\mono\gac\gdk-sharp\2.12.0.0__35e10195dab3c99f\gdk-sharp.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="atk-sharp, Version=2.12.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\..\..\..\..\Library\Frameworks\Mono.framework\Versions\Current\lib\mono\gac\atk-sharp\2.12.0.0__35e10195dab3c99f\atk-sharp.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="pango-sharp, Version=2.12.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\..\..\..\..\..\Library\Frameworks\Mono.framework\Versions\Current\lib\mono\gac\pango-sharp\2.12.0.0__35e10195dab3c99f\pango-sharp.dll</HintPath>
+      <Private>False</Private>
+    </Reference>
+    <Reference Include="Mono.Posix" />
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="PassEncrypt.addin.xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="PassEncryptMenuItem.cs" />
+    <Compile Include="PassEncryptNoteAddin.cs" />
+    <Compile Include="PassEncryptTag.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Makefile.am" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\Tomboy-mac.csproj">
+      <Project>{315DBB30-1461-4A41-A23F-A888D84E1EA0}</Project>
+      <Name>Tomboy-mac</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+  <ProjectExtensions>
+    <VisualStudio AllowExistingFolder="true" />
+  </ProjectExtensions>
+</Project>

Tomboy/Addins/PassEncrypt/PassEncrypt.addin.xml

@@ -0,0 +1,21 @@
+<Addin id="PassEncryptAddin"
+	namespace="Tomboy"
+	name="PassEncrypt"
+	author="Tomboy Project"
+	description="Adds ability to Encrypt text. Just select text and press ctrl+e to encrypt some text. To decrypt it just click link and enter password. Decrypted text is shown and copied to clipboard."
+	category="Formatting"
+	defaultEnabled="false"
+	version="0.1">
+
+ 	<Runtime>
+ 		<Import assembly="PassEncrypt.dll" />
+ 	</Runtime>
+
+	<Dependencies>
+		<Addin id="Tomboy" version="0.10" />
+	</Dependencies>
+
+	<Extension path="/Tomboy/NoteAddins">
+		<NoteAddin type="Tomboy.PassEncrypt.PassEncryptNoteAddin" />
+	</Extension>
+</Addin>