EasyTotp 1.2.1

An easy to use, flexible Time-Based One Time Password library for C# in dotnetcore

Install-Package EasyTotp -Version 1.2.1
dotnet add package EasyTotp --version 1.2.1
<PackageReference Include="EasyTotp" Version="1.2.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add EasyTotp --version 1.2.1
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: EasyTotp, 1.2.1"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install EasyTotp as a Cake Addin
#addin nuget:?package=EasyTotp&version=1.2.1

// Install EasyTotp as a Cake Tool
#tool nuget:?package=EasyTotp&version=1.2.1
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Easy-TOTP, A Time-Based authorization token generator library for C#

One easy and secure way to communicate between your web application and your Restful backend services in a micro-service driven architecture is to use a dynamic API-KEY via Time-Based One Time algorithm instead of a constant API Key or JSON Token. each time that the web application sends a request to any of the Restful backend servers, it will include a new API Key which has been generated by the Easy TOTP library. On the service side, by using the same Easy TOTP library the same API-Key can be generated to be compared with the generated API_Key by the web application in order to authenticate the request.

Easy-TOTP 's Benefits

  • Easy to implement and use
  • Lightweight
  • Secure
  • Flexible

The API-Keys generated by Easy TOTP are valid in short time span which will be given to the library on the initialization as "Time Step".

Easy TOTP flow

Prerequisite

Time-Based One Time Password (TOTP)

Advanced Encryption Standard (AES)

Resources

Github Repository

Nuget Package

Usage

string Key = "12345678901234567890123456789012"; //32 chars

var totp = new Totp()
    .Secret(Key)
    .Length(8)
    .ValidFor(TimeSpan.FromSeconds(5));

var output = totp.Compute();

//output = 12345678

Usage With Encryption

string Key = "12345678901234567890123456789012"; //32 chars
string _aesKey = "12345678901234567890123456789012"; //32 chars
string _aesIv = "1234567890123456"; //16 chars

var totp = new Totp()
    .Secret(Key)
    .Length(8)
    .ValidFor(TimeSpan.FromSeconds(5))
    .UseDefaultEncryptor(_aesKey,_aesIv);

var output = Convert.ToBase64String(totp.ComputeEncrypted());

//output = DV/tzyq8YG+BRZGSpOVNZQ==

Happy coding 😃

Easy-TOTP, A Time-Based authorization token generator library for C#

One easy and secure way to communicate between your web application and your Restful backend services in a micro-service driven architecture is to use a dynamic API-KEY via Time-Based One Time algorithm instead of a constant API Key or JSON Token. each time that the web application sends a request to any of the Restful backend servers, it will include a new API Key which has been generated by the Easy TOTP library. On the service side, by using the same Easy TOTP library the same API-Key can be generated to be compared with the generated API_Key by the web application in order to authenticate the request.

Easy-TOTP 's Benefits

  • Easy to implement and use
  • Lightweight
  • Secure
  • Flexible

The API-Keys generated by Easy TOTP are valid in short time span which will be given to the library on the initialization as "Time Step".

Easy TOTP flow

Prerequisite

Time-Based One Time Password (TOTP)

Advanced Encryption Standard (AES)

Resources

Github Repository

Nuget Package

Usage

string Key = "12345678901234567890123456789012"; //32 chars

var totp = new Totp()
    .Secret(Key)
    .Length(8)
    .ValidFor(TimeSpan.FromSeconds(5));

var output = totp.Compute();

//output = 12345678

Usage With Encryption

string Key = "12345678901234567890123456789012"; //32 chars
string _aesKey = "12345678901234567890123456789012"; //32 chars
string _aesIv = "1234567890123456"; //16 chars

var totp = new Totp()
    .Secret(Key)
    .Length(8)
    .ValidFor(TimeSpan.FromSeconds(5))
    .UseDefaultEncryptor(_aesKey,_aesIv);

var output = Convert.ToBase64String(totp.ComputeEncrypted());

//output = DV/tzyq8YG+BRZGSpOVNZQ==

Happy coding 😃

  • .NETStandard 2.0

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version History

Version Downloads Last updated
1.2.1 82 1/20/2021
1.1.0 358 12/29/2019
1.0.0 212 12/28/2019