Generate and Verify Signature

This guide shows how to generate and verify a digital signature using Virgil Crypto Library.

Prerequisites for work

Install Virgil Crypto

The Virgil .NET Crypto is provided as a package named Virgil.SDK.Crypto. The package is distributed via NuGet package management system.

Supported Platforms:

.NET Framework 4.5+
ASP.NET Core 1.0+
Windows 8+
Windows Phone 8.1+
Windows Phone Silverlight 8+

Installing the package using Package Manager Console:

Run PM> Install-Package Virgil.Crypto

Generate Signature and sign data with private key:

using Virgil.Crypto;

var crypto = new VirgilCrypto();

// prepare a message
var messageToSign = "Hello, Bob!";
var dataToSign = Encoding.UTF8.GetBytes(messageToSign);

// generate a signature
var signature = crypto.GenerateSignature(dataToSign, senderPrivateKey);

Verify Signature with the Public Key:

using Virgil.Crypto;

var crypto = new VirgilCrypto();

// verify a signature
var verified = crypto.VerifySignature(signature, dataToSign, senderPublicKey);