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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| using System.Diagnostics; | ||
| using System.Security.Cryptography; | ||
| using System.Text; | ||
|
|
||
| namespace CypherRSA; | ||
|
|
||
| // Max Lengh Support 379 Characters | ||
| public static class CypherRSA | ||
| { | ||
| public static void GenerateKeys(out byte[] publicKey, out byte[] privateKey) | ||
| { | ||
| try | ||
| { | ||
| using RSA rsaKey = RSA.Create(4096); | ||
| publicKey = rsaKey.ExportRSAPublicKey(); | ||
| privateKey = rsaKey.ExportRSAPrivateKey(); | ||
| rsaKey.Clear(); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| publicKey = Array.Empty<byte>(); | ||
| privateKey = Array.Empty<byte>(); | ||
| Debug.WriteLine("CypherTool GenerateKeys: " + ex.Message); | ||
| } | ||
| } | ||
|
|
||
| public static bool TryEncrypt(byte[] input, byte[] publicKey, out byte[] encryptedBytes, out string encryptedHex) | ||
| { | ||
| try | ||
| { | ||
| using RSA rsaKey = RSA.Create(4096); | ||
| rsaKey.ImportRSAPublicKey(publicKey, out _); | ||
| encryptedBytes = rsaKey.Encrypt(input, RSAEncryptionPadding.OaepSHA512); | ||
| encryptedHex = Convert.ToHexString(encryptedBytes); | ||
|
|
||
| rsaKey.Clear(); | ||
| return true; | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| encryptedBytes = Array.Empty<byte>(); | ||
| encryptedHex = string.Empty; | ||
| Debug.WriteLine("CypherTool TryEncrypt 1: " + ex.Message); | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| public static bool TryEncrypt(string inputText, byte[] publicKey, out byte[] encryptedBytes, out string encryptedHex) | ||
| { | ||
| try | ||
| { | ||
| byte[] inputBytes = Encoding.UTF8.GetBytes(inputText); | ||
| return TryEncrypt(inputBytes, publicKey, out encryptedBytes, out encryptedHex); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| encryptedBytes = Array.Empty<byte>(); | ||
| encryptedHex = string.Empty; | ||
| Debug.WriteLine("CypherTool TryEncrypt 2: " + ex.Message); | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| public static bool TryDecrypt(byte[] encryptedBytes, byte[] privateKey, out byte[] decryptedBytes) | ||
| { | ||
| try | ||
| { | ||
| using RSA rsaKey = RSA.Create(4096); | ||
| rsaKey.ImportRSAPrivateKey(privateKey, out _); | ||
| decryptedBytes = rsaKey.Decrypt(encryptedBytes, RSAEncryptionPadding.OaepSHA512); | ||
| rsaKey.Clear(); | ||
| return true; | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| decryptedBytes = Array.Empty<byte>(); | ||
| Debug.WriteLine("CypherTool TryDecrypt 1: " + ex.Message); | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| public static bool TryDecrypt(string encryptedHex, byte[] privateKey, out byte[] decryptedBytes) | ||
| { | ||
| try | ||
| { | ||
| byte[] encryptedBytes = Convert.FromHexString(encryptedHex); | ||
| return TryDecrypt(encryptedBytes, privateKey, out decryptedBytes); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| decryptedBytes = Array.Empty<byte>(); | ||
| Debug.WriteLine("CypherTool TryDecrypt 2: " + ex.Message); | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| public static bool TryDecrypt(byte[] encryptedBytes, byte[] privateKey, out string decryptedText) | ||
| { | ||
| bool isDecryptionSuccess = TryDecrypt(encryptedBytes, privateKey, out byte[] decryptedBytes); | ||
| if (isDecryptionSuccess) | ||
| { | ||
| try | ||
| { | ||
| decryptedText = Encoding.UTF8.GetString(decryptedBytes); | ||
| return true; | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| decryptedText = string.Empty; | ||
| Debug.WriteLine("CypherTool TryDecrypt 3: " + ex.Message); | ||
| return false; | ||
| } | ||
| } | ||
| else | ||
| { | ||
| decryptedText = string.Empty; | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| public static bool TryDecrypt(string encryptedHex, byte[] privateKey, out string decryptedText) | ||
| { | ||
| try | ||
| { | ||
| byte[] encryptedBytes = Convert.FromHexString(encryptedHex); | ||
| return TryDecrypt(encryptedBytes, privateKey, out decryptedText); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| decryptedText = string.Empty; | ||
| Debug.WriteLine("CypherTool TryDecrypt 4: " + ex.Message); | ||
| return false; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
||
| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net6.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| <Title>Cypher RSA Tool</Title> | ||
| <Version>$(VersionPrefix)1.0.0</Version> | ||
| <Copyright>MSasanMH</Copyright> | ||
| <PackageIcon>SecureDNSClient.png</PackageIcon> | ||
| <IncludeNativeLibrariesForSelfExtract>true</IncludeNativeLibrariesForSelfExtract> | ||
| <Platforms>AnyCPU;x64;x86</Platforms> | ||
| <ApplicationIcon>SecureDNSClientMulti.ico</ApplicationIcon> | ||
| </PropertyGroup> | ||
|
|
||
| <ItemGroup> | ||
| <Content Include="SecureDNSClientMulti.ico" /> | ||
| </ItemGroup> | ||
|
|
||
| <ItemGroup> | ||
| <None Include="..\SecureDNSClient.png"> | ||
| <Pack>True</Pack> | ||
| <PackagePath>\</PackagePath> | ||
| </None> | ||
| </ItemGroup> | ||
|
|
||
| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> | ||
| <PropertyGroup> | ||
| <_LastSelectedProfileId>D:\PPWin\SecureDNSClient\CypherRSA\Properties\PublishProfiles\X64.pubxml</_LastSelectedProfileId> | ||
| </PropertyGroup> | ||
| </Project> |
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