Token authentication in my ASP.NET

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C# Corner Support · Answer

Absolutely I'd be happy to assist with Token authentication in ASP.NET within the realm of .NET Core technology. Token authentication involves issuing a token to authenticated users that can be used to access protected resources. In .NET Core JSON Web Tokens (JWT) are commonly used for this purpose. The process involves generating a token upon successful authentication including relevant user claims and then validating this token for each subsequent request to authorize access to protected resources. Here's a simple example of generating a JWT token in ASP.NET Core: var claims = new[] { new Claim(JwtRegisteredClaimNames.Sub username) new Claim(JwtRegisteredClaimNames.Jti Guid.NewGuid().ToString()) }; var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(your-secret-key)); var creds = new SigningCredentials(key SecurityAlgorithms.HmacSha256); var token = new JwtSecurityToken( issuer: your-website.com audience: your-website.com claims: claims expires: DateTime.Now.AddMinutes(30) signingCredentials: creds ); return new JwtSecurityTokenHandler().WriteToken(token); Upon receiving this token in subsequent requests you can validate it using middleware in ASP.NET Core and then allow access to protected resources based on the claims present in the token. I hope this information is helpful. If you have any specific queries or need further details feel free to ask!