SimpleCrypt 1.0.0

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package SimpleCrypt --version 1.0.0
                    


                    

                
NuGet\Install-Package SimpleCrypt -Version 1.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="SimpleCrypt" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="SimpleCrypt" Version="1.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="SimpleCrypt" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add SimpleCrypt --version 1.0.0
                    


                    

                
#r "nuget: SimpleCrypt, 1.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package SimpleCrypt@1.0.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=SimpleCrypt&version=1.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=SimpleCrypt&version=1.0.0
                    


                            Install as a Cake Tool

SimpleCrypt

SimpleCrypt is a tiny F# library for reversible XOR-based text obfuscation. It converts plaintext to bytes, applies a repeating byte key, and returns the result as Base64 text. The reverse operation decodes the Base64 value and applies the same key to recover the original text.

This package is best suited for lightweight obfuscation of non-sensitive values. It is not a replacement for authenticated encryption such as AES-GCM.

Installation

dotnet add package SimpleCrypt

Usage

open System
open System.Text

let key = Encoding.UTF8.GetBytes("change-this-key")

let encrypted = SimpleCrypt.encr key "text to protect"
let decrypted = SimpleCrypt.decr key encrypted

printfn "%s" encrypted
printfn "%s" decrypted

Default Key

SimpleCrypt also includes helpers that read a Base64-encoded key from the SC_KEY environment variable.

let encrypted = SimpleCrypt.encrDflt "text to protect"
let decrypted = SimpleCrypt.decrDflt encrypted

Generate a simple key value:

let random = Random()
let bytes = Array.zeroCreate<byte> 16
random.NextBytes(bytes)
let scKey = Convert.ToBase64String(bytes)

Set SC_KEY to the generated Base64 value before using encrDflt or decrDflt.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
1.0.0 99 5/1/2026