Cryptographic object identifier

Kryptos/Kryptos/Kryptos.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFrameworks>netcoreapp3.1;net5.0</TargetFrameworks>
     <Version>0.0.6</Version>
     <Authors>Vijayshinva Karnure</Authors>
     <Description>A .NET core tool for cryptography.</Description>

Kryptos/Kryptos/Program.cs

@@ -27,7 +27,8 @@ static async Task<int> Main(string[] args)
                 .WireUpHmacSha256Commands()
                 .WireUpHmacSha384Commands()
                 .WireUpHmacSha512Commands()
-                .WireUpSriCommands();
+                .WireUpSriCommands().
+                WireUpOidCommands();
 
             return await rootCommand.InvokeAsync(args);
         }

Kryptos/Kryptos/WireUpOidExtensions.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.CommandLine;
+using System.CommandLine.Invocation;
+using System.CommandLine.IO;
+using System.IO;
+using System.Security.Cryptography;
+using System.Text;
+
+namespace Kryptos
+{
+    public static class WireUpOidExtensions
+    {
+        public static RootCommand WireUpOidCommands(this RootCommand rootCommand)
+        {
+            Command oidCommand = new Command("oid", "Cryptographic object identifier");
+            oidCommand.AddOption(new Option<string>(new string[] { "--text", "-t" }, "Input Text"));
+
+            oidCommand.Handler = CommandHandler.Create<string, IConsole>((text, console) =>
+            {
+                try
+                {
+                    var oid = new Oid(text);
+
+                    console.Out.WriteLine($"{oid.FriendlyName} : {oid.Value}");
+                }
+                catch (Exception ex)
+                {
+                    console.Out.WriteLine(ex.Message);
+                    return 22;
+                }
+                return 0;
+            });
+
+            rootCommand.AddCommand(oidCommand);
+
+            return rootCommand;
+        }
+    }
+}

README.md

@@ -49,27 +49,28 @@ kryptos --help
 ```
 
 ## Examples
-1. Generate Base64 encoded string
-    ```
-    kryptos base64 enc -t "The quick brown fox jumps over the lazy dog."
-    ```
-2. Decode Base64 encoded string
+
+1. Decode Base64 encoded string
     ```
     kryptos base64 dec -t "VGhlIHF1aWNrIGJyb3duIGZveCBqdW1wcyBvdmVyIHRoZSBsYXp5IGRvZy4="
     ```
-3. Generate SHA-256 hash of file
+2. Generate SHA-256 hash of file
     ```
     kryptos sha256 hash -i .\ubuntu-20.04-desktop-amd64.iso
     ```
-4. Decode a JWT token
+3. Decode a JWT token
     ```
     kryptos jwt dec -t eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IlZpamF5c2hpbnZhIEthcm51cmUiLCJpYXQiOjE1MTYyMzkwMjIsImF1ZCI6Imh0dHBzOi8vZ2l0aHViLmNvbS92aWpheXNoaW52YS9rcnlwdG9zIn0.ufklYra5bLYKM-FWnmxI0Tsw_ILmTIDK0cJ7ZkPfwfE
     ```
-5. Generate Subresource Integrity
+4. Generate Subresource Integrity
     ```
     kryptos sri hash -u https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css
     ```
-
+5. Look up Cryptographic Object Identifier
+    ```
+    kryptos oid -t 1.3.6.1.5.5.7.3.1
+    ```
+    
 ## Contributing
 - Fork the repo on [GitHub][git-repo]
 - Clone the project to your own machine