public void ConfigureServices(IServiceCollection services)
{
// *** CHANGE THIS FOR PRODUCTION USE ***
// Here, we're generating a random key to sign tokens - obviously this means
// that each time the app is started the key will change, and multiple servers
// all have different keys. This should be changed to load a key from a file
// securely delivered to your application, controlled by configuration.
//
// See the RSAKeyUtils.GetKeyParameters method for an examle of loading from
// a JSON file.
RSAParameters keyParams = RSAKeyUtils.GetRandomKey();
// Create the key, and a set of token options to record signing credentials
// using that key, along with the other parameters we will need in the
// token controlller.
key = new RsaSecurityKey(keyParams);
tokenOptions = new TokenAuthOptions()
{
Audience = TokenAudience,
Issuer = TokenIssuer,
SigningCredentials = new SigningCredentials(key, SecurityAlgorithms.RsaSha256Signature)
};
// Save the token options into an instance so they're accessible to the
// controller.
services.AddSingleton <TokenAuthOptions>(tokenOptions);
// Enable the use of an [Authorize("Bearer")] attribute on methods and classes to protect.
services.AddAuthorization(auth =>
{
auth.AddPolicy("Bearer", new AuthorizationPolicyBuilder()
.AddAuthenticationSchemes(JwtBearerDefaults.AuthenticationScheme)
.RequireAuthenticatedUser().Build());
auth.DefaultPolicy = auth.GetPolicy("Bearer");
});
// Note, it is VITAL that this is added BEFORE services.UseMvc() is called.
// See https://github.com/mrsheepuk/ASPNETSelfCreatedTokenAuthExample/issues/11
services.AddAuthentication().AddJwtBearer(o =>
{
o.Audience = tokenOptions.Audience;
o.TokenValidationParameters = new TokenValidationParameters
{
IssuerSigningKey = key,
ValidAudience = tokenOptions.Audience,
ValidIssuer = tokenOptions.Issuer,
// When receiving a token, check that it is still valid.
ValidateLifetime = true,
// This defines the maximum allowable clock skew - i.e. provides a tolerance on the token expiry time
// when validating the lifetime. As we're creating the tokens locally and validating them on the same
// machines which should have synchronised time, this can be set to zero. Where external tokens are
// used, some leeway here could be useful.
ClockSkew = TimeSpan.FromMinutes(0)
};
});
services.AddMvc();
}
public void ConfigureServices(IServiceCollection services)
{
// *** CHANGE THIS FOR PRODUCTION USE ***
// Here, we're generating a random key to sign tokens - obviously this means
// that each time the app is started the key will change, and multiple servers
// all have different keys. This should be changed to load a key from a file
// securely delivered to your application, controlled by configuration.
//
// See the RSAKeyUtils.GetKeyParameters method for an examle of loading from
// a JSON file.
RSAParameters keyParams = RSAKeyUtils.GetRandomKey();
// Create the key, and a set of token options to record signing credentials
// using that key, along with the other parameters we will need in the
// token controlller.
key = new RsaSecurityKey(keyParams);
tokenOptions = new TokenAuthOptions()
{
Audience = TokenAudience,
Issuer = TokenIssuer,
SigningCredentials = new SigningCredentials(key,
SecurityAlgorithms.RsaSha256Signature, SecurityAlgorithms.Sha256Digest)
};
// Save the token options into an instance so they're accessible to the
// controller.
services.AddInstance <TokenAuthOptions>(tokenOptions);
// Enable the use of an [Authorize("Bearer")] attribute on methods and classes to protect.
services.AddAuthorization(auth =>
{
auth.AddPolicy("Bearer", new AuthorizationPolicyBuilder()
.AddAuthenticationSchemes(JwtBearerDefaults.AuthenticationScheme)
.RequireAuthenticatedUser().Build());
});
services.AddMvc();
}