iSigner 1.4.0

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.5 This package targets .NET Framework 4.5. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package iSigner --version 1.4.0
                    


                    

                
NuGet\Install-Package iSigner -Version 1.4.0
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="iSigner" Version="1.4.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="iSigner" Version="1.4.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="iSigner" />
                    


                            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 iSigner --version 1.4.0
                    


                    

                
#r "nuget: iSigner, 1.4.0"
#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 iSigner@1.4.0
#: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=iSigner&version=1.4.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=iSigner&version=1.4.0
                    


                            Install as a Cake Tool

iSigner — official .NET SDK

Server-side digital signing for iSigner, Nepal's national digital signature platform. Sign PDFs, validate signatures, manage citizen sessions — your app never holds a private key, never wraps PAdES, never talks to OCSP/TSA/HSM.

Targets .NET Framework 4.5+, .NET Standard 2.0, and .NET 8 — one package for every Windows server box a government office, bank or insurer runs, including legacy ASP.NET MVC5 apps such as eBPS.

dotnet add package iSigner

Two ways to connect

// External integrators → the iSigner gateway (per-tenant client HMAC):
var gov = new iSignerClient("https://api.isigner.gov.np", clientId, hmacSecret);

// Internal / on-prem app next to the signing agent (ServiceAuth):
var gov = iSignerClient.ForAgent("http://127.0.0.1:9090", serviceSecret);

Sign

// One PDF, citizen confirms on their phone:
byte[] signed = await gov.Signatures.SignPdfAsync(pdf, citizenId: "12-34-56-7890",
    title: "Account Opening — KYC", relyingParty: "NIBL Bank", level: "LT");

// Bulk, server-side, with a department certificate (no citizen):
List<byte[]> sealed = await gov.Signatures.SignPdfInstitutionalAsync(
    pdfs, certReference: "ird-bulk-stamp-2026", level: "LT");

// Validate:
var report = await gov.Validations.ValidateAsync(signed, "doc.pdf");

Synchronous wrappers (SignPdf, SignPdfInstitutional, …) are provided for classic ASP.NET MVC5 / .NET Framework callers — they're deadlock-safe because the SDK uses ConfigureAwait(false) throughout.

ASP.NET Core DI (netstandard2.0+/net8)

builder.Services.AddiSigner(o => {
    o.BaseUrl    = "https://api.isigner.gov.np";
    o.ClientId   = config["iSigner:ClientId"];
    o.HmacSecret = config["iSigner:Secret"];
});

Webhooks

gov.Webhooks.Verify(rawBody, Request.Headers["X-iSigner-Signature"], webhookSecret);

License: Apache-2.0 · https://isigner.gov.np/sdk

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  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. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net45 is compatible.  net451 was computed.  net452 was computed.  net46 was computed.  net461 was computed.  net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

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Version Downloads Last Updated
1.4.6 134 7/6/2026
1.4.5 116 7/6/2026
1.4.4 114 7/3/2026
1.4.3 115 7/3/2026
1.4.2 105 7/2/2026
1.4.1 113 7/2/2026
1.4.0 113 7/1/2026