asp.net qr code reader

asp.net qr code reader

asp.net qr code reader

pdf add document existing text, pdf add image page split, pdf file image online text, pdf converter free ocr text, pdf bit free load version,

asp.net data matrix reader, asp.net code 128 reader, asp.net ean 13 reader, asp.net barcode reader control, asp.net upc-a reader, asp.net ean 128 reader, asp.net ean 13 reader, asp.net data matrix reader, asp.net scan barcode, asp.net gs1 128, asp.net code 128 reader, asp.net code 128 reader, asp.net c# barcode reader, asp.net pdf 417 reader, asp.net ean 13 reader

asp.net mvc display pdf, asp.net print pdf directly to printer, microsoft azure ocr pdf, asp.net pdf writer, return pdf from mvc, asp.net print pdf directly to printer, mvc view to pdf itextsharp, asp.net pdf viewer annotation, asp.net pdf viewer annotation, telerik pdf viewer asp.net demo

asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,
asp.net qr code reader,

With certificates, an organization purchases a certificate from a known certificate authority (CA) and installs it on its web server. The client implicitly trusts the CA and is therefore willing to trust certificate information signed by the CA. This model works well because it is unlikely that a malicious user will go to the expense of purchasing and installing a falsified certificate. The CA also retains information about each registered user. However, a certificate does not in any way ensure the trustworthiness of the server, the safety of the application, or the legitimacy of the business. In these ways, certificates are fundamentally limited in scope. The certificate itself contains certain identifying information. It is signed with the CA s private key to guarantee that it is authentic and has not been modified. The industry-standard certificate type, known as x.509v3, contains the following basic information: The holder s name, organization, and address The holder s public key, which will be used to negotiate an SSL session key for encrypting communication The certificate s validation dates The certificate s serial number In addition, a certificate might also include business-specific information, such as the certificate holder s industry, the length of time they have been in business, and so on. The two biggest certificate authorities are as follows: Thawte: http://www.thawte.com VeriSign: http://www.verisign.com If you don t need the identity validation function of CAs (for example, if your certificates will be used only on a local intranet), you can create and use your own certificates and configure all clients to trust them. This requires Active Directory and Certificate Server (which is a built-in part of Windows 2003 Server and Windows 2000 Server). For more information, consult a dedicated book about Windows network administration.

ASP.NET ships with a provider for SQL Server and Active Directory (which enables you to create custom login pages for users stored in Active Directory). But the idea of providers is that they give you the ability to completely extend the infrastructure. Therefore, you can write your own membership provider, which is basically a class that inherits from System.Web.Security.MembershipProvider. Membership providers are primarily configured through your web.config configuration file, which includes a new <membership /> section. You will learn more about custom membership providers in 26.

ean 13 excel free download, pdf annotation in c#, asp.net mvc qr code, c# code 39 checksum, convert pdf to word using itextsharp c#, vb net code 39 barcode

The most important part of the forms authentication framework is the FormsAuthenticationModule, which is an HttpModule class that detects existing forms authentication tickets in the request. If the ticket is not available and the user requests a protected resource, it automatically redirects the request to the login page configured in your web.config file before this protected resource is even touched by the runtime. If the ticket is present, the module automatically creates the security context by initializing the HttpContext.Current.User property with a default instance of GenericPrincipal, which contains a FormsIdentity instance with the name of the currently logged-in user. Basically, you don t work with the module directly. Your interface to the module consists of the classes in Table 20-1, which are part of the System.Web.Security namespace. Table 20-1. The Forms Authentication Framework Classes

As described in the previous section, every certificate includes a public key A public key is part of an asymmetric key pair The basic idea is that the public key is freely provided to anyone who is interested The corresponding private key is kept carefully locked away and is available only to the server The interesting twist is that anything that s encrypted with one of the keys is decipherable with the other That means a client can retrieve the public key and use it to encode a secret message that can be decrypted only with the corresponding private key In other words, the client can create a message that only the server can read This process is called asymmetric encryption, and it s a basic building block of SSL.

Although the membership API supports Active Directory as a provider, there is still a big difference between using Windows authentication and using the membership API for authenticating users in your web application. When you configure your application to use membership APIs, which are actually based on forms authentication, credentials are sent as clear text across the line (except you should use SSL), and a forms authentication ticket is used for authentication, as you learned in the previous chapter. On the other hand, when configuring Windows authentication, the user is authenticated either through NTLM or through Kerberos (in the case of Windows 2000 or Windows Server 2003 domains). Both methods are much more secure, because credentials are never sent across the line.

This is the primary class for interacting with the forms authentication infrastructure. It provides basic information about the configuration and allows you to create the ticket, set the cookie, and redirect from the login page to the originally requested page if the validation of credentials was successful. This module raises an Authenticate event that you can catch. The event arguments passed are encapsulated in an instance of this class. It contains basic information about the authenticated user. This class represents the user information that will be encrypted and stored in the authentication cookie. This class is an implementation of IIdentity that is specific to forms authentication. The key addition to the FormsIdentity class is the Ticket property, which exposes the authentication ticket. This allows you to store and retrieve additional information in the ticket. This is the core of the forms authentication infrastructure that establishes the security context and performs the automatic page redirects to the login page if necessary.

tesseract.js ocr image, how to generate qr code in asp.net core, birt gs1 128, ocr activex free