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darinkesdarinkes
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Add Sign/Verify for SSH-Signatures
1 parent b230c43 commit 958a178

18 files changed

+451
-4
lines changed

‎SshNet.Keygen.Sample/SshNet.Keygen.Sample.csproj‎

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@@ -8,7 +8,7 @@
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="SSH.NET" Version="2024.0.0" />
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<PackageReference Include="SSH.NET" Version="2024.1.0" />
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<ProjectReference Include="..\SshNet.Keygen\SshNet.Keygen.csproj" />
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</ItemGroup>
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‎SshNet.Keygen.Tests/SshNet.Keygen.Tests.csproj‎

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@@ -3,7 +3,7 @@
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<PropertyGroup>
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<TargetFrameworks Condition="'$(OS)' == 'Windows_NT'">net48;net8.0</TargetFrameworks>
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<TargetFramework Condition="'$(OS)' != 'Windows_NT'">net8.0</TargetFramework>
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<LangVersion>9</LangVersion>
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<LangVersion>latest</LangVersion>
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<IsPackable>false</IsPackable>
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</PropertyGroup>
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@@ -19,6 +19,7 @@
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<ItemGroup>
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<EmbeddedResource Include="TestKeys\*" />
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<EmbeddedResource Include="TestSignatures\*" />
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</ItemGroup>
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</Project>

‎SshNet.Keygen.Tests/TestKey.cs‎

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@@ -209,6 +209,13 @@ private string GetKey(string keyname)
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return reader.ReadToEnd();
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}
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private string GetSignatureResource(string keyname)
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{
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var resourceStream = Assembly.GetExecutingAssembly().GetManifestResourceStream($"SshNet.Keygen.Tests.TestSignatures.{keyname}");
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using var reader = new StreamReader(resourceStream, Encoding.ASCII);
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return reader.ReadToEnd().Replace(Environment.NewLine, "\n");
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}
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private void TestFormatKey<T>(string keyname, int keyLength, string passphrase = null)
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{
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if (!string.IsNullOrEmpty(passphrase))
@@ -302,5 +309,46 @@ public void TestED25519()
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TestFormatKey<ED25519Key>("ED25519", 256);
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TestFormatKey<ED25519Key>("ED25519", 256, "12345");
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}
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[Test]
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public void TestVerify()
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{
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List<string> keys = ["RSA2048", "RSA3072", "RSA4096", "RSA8192", "ECDSA256", "ECDSA384", "ECDSA521", "ED25519"];
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var data = Encoding.UTF8.GetBytes(GetSignatureResource("file.txt"));
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foreach (var key in keys)
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{
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TestContext.WriteLine($"Testing Key {key}");
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var signature = GetSignatureResource($"file.txt.{key}.sig");
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ClassicAssert.IsTrue(SshSignature.Verify(data, signature));
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}
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}
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[Test]
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public void TestSign()
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{
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List<string> keys = ["RSA2048", "RSA3072", "RSA4096", "RSA8192", "ECDSA256", "ECDSA384", "ECDSA521", "ED25519"];
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var data = Encoding.UTF8.GetBytes(GetSignatureResource("file.txt"));
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foreach (var key in keys)
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{
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TestContext.WriteLine($"Testing Key {key}");
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var expectedSignature = GetSignatureResource($"file.txt.{key}.sig");
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var keyData = GetKey(key);
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var keyFile = new PrivateKeyFile(keyData.ToStream());
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var signature = keyFile.Signature(data);
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ClassicAssert.IsTrue(SshSignature.Verify(data, signature));
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// ECDSA Signatures differ on each run
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if (!key.StartsWith("ECDSA"))
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ClassicAssert.AreEqual(expectedSignature, signature);
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var file = $"file-{key}.txt";
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File.WriteAllText(file, "bla");
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keyFile.SignatureFile(file);
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ClassicAssert.IsTrue(SshSignature.VerifyFile(file, $"{file}.sig"));
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}
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}
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}
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}

‎SshNet.Keygen.Tests/TestSignatures/file.txt‎

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bla

‎SshNet.Keygen.Tests/TestSignatures/file.txt.ECDSA256.sig‎

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-----BEGIN SSH SIGNATURE-----
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U1NIU0lHAAAAAQAAAGgAAAATZWNkc2Etc2hhMi1uaXN0cDI1NgAAAAhuaXN0cDI1NgAAAE
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EESopJD2EOZurPTh6aNd6RvfBG4/VIiEYL6RF3xWNuNJ9kD9q/qdNTt3bCTE7QgUiN4LvH
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3m2+1W/FdCo1rxVFcQAAAARmaWxlAAAAAAAAAAZzaGE1MTIAAABkAAAAE2VjZHNhLXNoYT
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ItbmlzdHAyNTYAAABJAAAAIGQ5GV/wx49Jt1ewe0lGDSdHRK84bxFrqkiaGd0ppF4FAAAA
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IQCgeawU+z9lTXJbfDX5jEirNV5EkYzQsWZ+L/T216objQ==
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-----END SSH SIGNATURE-----

‎SshNet.Keygen.Tests/TestSignatures/file.txt.ECDSA384.sig‎

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-----BEGIN SSH SIGNATURE-----
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U1NIU0lHAAAAAQAAAIgAAAATZWNkc2Etc2hhMi1uaXN0cDM4NAAAAAhuaXN0cDM4NAAAAG
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EERxwFxKqyTbx914sfwUEobYBtwuyUqXwOgkAIArdChUzPUyP/SBj8U6SoxtiBHp8CXEzT
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pgkjwaYU7qNtypf0/Qy/JR8Bc3VO3iWNufT/t8A/Twc/6DMZIdmxOPWXQwaMAAAABGZpbG
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UAAAAAAAAABnNoYTUxMgAAAIMAAAATZWNkc2Etc2hhMi1uaXN0cDM4NAAAAGgAAAAwbnar
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SmL/5XlkV8ySShlIHrNNTUzVVioIWxd2AWFYdul7iaGF4DGfK6laBJSTK+eqAAAAMCdjtp
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OKFcNpYZ+cauvrBJSvTJ9Pb8EJj0PUi61SrJkp3ZFULesWuglUbtwUttrcSQ==
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-----END SSH SIGNATURE-----

‎SshNet.Keygen.Tests/TestSignatures/file.txt.ECDSA521.sig‎

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-----BEGIN SSH SIGNATURE-----
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U1NIU0lHAAAAAQAAAKwAAAATZWNkc2Etc2hhMi1uaXN0cDUyMQAAAAhuaXN0cDUyMQAAAI
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UEAK5WmW+O0Ut75D9KATr6yEFwYZmBsHJmxUXRRrcyvTbdpKofHoVzpY4WHK4pJg8GHwG1
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NnpDHyjsPAD6oe4dYTiCAO9uYQPGlmxu8KTt+4VOtsX3IkAVaWPb3rsn+k9yz4WP2PEnRD
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ILrQXT4Nc5XmoA4lCAcFNIxmmxPu7zVaNq8/hBAAAABGZpbGUAAAAAAAAABnNoYTUxMgAA
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AKUAAAATZWNkc2Etc2hhMi1uaXN0cDUyMQAAAIoAAABBbSiayMz22ln7pRn0byMB57Cq/R
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4sg8m0ngeFOmY70XC/kNK7TTA3VTD0UkBsdG2KLAj6s2haUiH8LSiOjJ6mbmAAAABBPpmj
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I2mBpTW38WZLGsEf4prYeIO7dO0TY1hzGefm6txqOxFaBmpzZMT8ktYaikU/O8JBaIqiw7
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ZMZNe5ShmuvuM=
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-----END SSH SIGNATURE-----

‎SshNet.Keygen.Tests/TestSignatures/file.txt.ED25519.sig‎

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-----BEGIN SSH SIGNATURE-----
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U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgTlboFw2cy42Ati5RrXwX8KLx3M
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+p4g78fffefTK/ijoAAAAEZmlsZQAAAAAAAAAGc2hhNTEyAAAAUwAAAAtzc2gtZWQyNTUx
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OQAAAED0TUwGrgbbWKVj6BiR07l0OrtJa5uM6vCo5Fe4smzPcTzmJDODkllHIgRuI/E+PD
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dC67uGC9N7Jgzc54EoFHIO
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-----END SSH SIGNATURE-----

‎SshNet.Keygen.Tests/TestSignatures/file.txt.RSA2048.sig‎

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-----BEGIN SSH SIGNATURE-----
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U1NIU0lHAAAAAQAAARcAAAAHc3NoLXJzYQAAAAMBAAEAAAEBAOJpdVVMNyPkABr2ywB2iO
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ns3StUJMUNDGuFjqyNzVYvaX3C8rjB6i1EoBCHbp6ZPEEU8e6bOPU6i2hvQTjFWxqmaRvj
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3hz7VAu+wMMmQkw1IMZyw2YhKi/+sCz8Yb3vI2xUHR1PZLtZj7K47prVLkbiWtycIiJaCD
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n9nI1QYeHX40in+0witV9D6T+tieUbyda/3C31KL1y5Vs4plHssEWayKq/Yi5xqWLAitGO
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KGUofEk1N0FEagJrMEzfDiEUxbFOFjedRo2lfgY/KUUzc1gabNYHH927P+gup/60pYLM9s
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MpgjBB8v1KJ2F/tCBKMyX0BZ7QYhWvVMFIM4F3SycAAAAEZmlsZQAAAAAAAAAGc2hhNTEy
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AAABFAAAAAxyc2Etc2hhMi01MTIAAAEA2WMT5aZ6fJ/ZXF0Gl/Vym8mTtDXEufziwjmt+z
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ZSt3MF0GlwNDiYkeHFjyg16zqrJkeddj7yENyQ0Eae0Ew+7iFML6sKTEJKaiYf51/U+Jli
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DVawwhH0+i3YZaCGmbiEQeXHfuFtA8deCdyxUkUYbycpdrfd0bx2dZFYu/WgNa9gHu/OVO
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NQqqDOAHZUAko2MHN2GZ7wiepbGO9NAjhRtRE2tV6X8l3KI1+PmqvyfOQQMZcVa1V/WaFR
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8wx1Z3VBJ+szP0XBdWrrwKY8K7yEE5rm55mx2rGtXuySGgISMbZlUHlJp31YE0Z4jMcEE+
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5m61gVpll8DYFSakNlBk6Xgg==
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-----END SSH SIGNATURE-----

‎SshNet.Keygen.Tests/TestSignatures/file.txt.RSA3072.sig‎

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-----BEGIN SSH SIGNATURE-----
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U1NIU0lHAAAAAQAAAZcAAAAHc3NoLXJzYQAAAAMBAAEAAAGBAKs3fv8jufGNRU/E8SNlcG
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Eg3HBy+NXCcF0zzvwQivdQ38GjjZG3AyLJd1IYNX4JmSxLOoy17LMlHlY0Yn9tb9ZVgoiX
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Nz+TC/8t1BMvKcokxlcMlJuK30WEYFzcseJ/zrC+KEeHZMlzWa4Hm5R8mvsgF5+9N3RQYL
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kekiVn6dCu6Glw0ZGt6QUMhF8VXJx6wDDqbHLgtO/UzauoAE3a87ypj8zpDjsbDee3EJ9p
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RkCg4o0FiECOniOkOxRZCVFEKm7kwR8wiPTyjReNZcConEFkU1rb/ZYztkcu7W1psZYUmj
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j0TMfZpiimyLuASfAlqKshtL4VZdCOr+YTL6gkoMEQcce8SsT4+38F42ecGsybw43k8tCy
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t6D6c72irREqr+yO8qWy1CunMPHcu1zqIgPKISntdjC4ha7XGxqr6kqDlQfkqdqqNaVU5q
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x9GzpaB3+cT+auZsZFBgz6ProxxjtCTv3+wuPnAKIMbk24LM1wN21zpzFG4uWf7fYSG9Zb
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RQAAAARmaWxlAAAAAAAAAAZzaGE1MTIAAAGUAAAADHJzYS1zaGEyLTUxMgAAAYAC6NRILC
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HH/D2iTC+cvr0M2zwjoEDfEOIMCIcIF2BYRobo6UIudUL2ST8eIBriAsxkgdOnvt/+evN/
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iirFMtb7RDC/bysHoaWEJYSkHsM/aklEiPgw0z3+eGDQChRBZQPRPPuAl6GOl8RRuNm0Ea
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Wy+Rpj483yvDb4JSsf5+iAIFKhdv692B8T9MaqAfzhgkDLfoKfHPSRs8i3jlCFmIEXdBVu
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Gs34jYKaX1uxuDsBvTeC24XsZNcwbRAO2YUrH0PRX6mpqS06xeRTUzIlYd7Iq1an62xGx1
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Alu2cGrh4P1tWHwxF6TC7um6CaqQOVipWP7jAUc12cBdjC205Vw/GCPB+N7Q5Ot7qSl3L5
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ELyd2n1HJVXuL5rFQDp7iELgjuiObn1ZSF3+C1tryBTSVsnfkui4BmZmC2AstbGUfuX2Nn
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HDLTpRAt/ocC17HLro43pm6aj/HYa8Y3s8kZoPYVg/YzYOxqPXaBDlPsEyK7P06utKFsq/
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wlTihlGHDyob6n8=
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-----END SSH SIGNATURE-----

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