java qr code generator download Understanding Kerberos in Java

Creation QR Code JIS X 0510 in Java Understanding Kerberos

Understanding Kerberos
Draw Quick Response Code In Java
Using Barcode creation for Java Control to generate, create QR image in Java applications.
www.OnBarcode.com
Quick Response Code Scanner In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
What are the tickets that are contained within the principals A principal is not obliged to contain any specific item of information, so tickets must be an artifact of the implementation. We are using Kerberos as our authentication system, and indeed, tickets are a fundamental part of the way that Kerberos operates. The aim of Kerberos is to avoid the need for users ever to send their password in a retrievable form over the network. In order to authenticate, the client follows these steps: 1. The client asks the server for a ticket-granting ticket (TGT). The request is unencrypted, and specifies the username of the client. It does not specify the password. The server issues a TGT to the client. A TGT contains an encrypted session key. This can be decrypted using the client s password only. Therefore, only our client can obtain the session key even if someone else has been listening to the exchange.
Create Data Matrix 2d Barcode In Java
Using Barcode drawer for Java Control to generate, create Data Matrix image in Java applications.
www.OnBarcode.com
2D Printer In Java
Using Barcode creation for Java Control to generate, create Matrix 2D Barcode image in Java applications.
www.OnBarcode.com
Download at
USS Code 128 Maker In Java
Using Barcode creator for Java Control to generate, create Code 128B image in Java applications.
www.OnBarcode.com
UPC A Drawer In Java
Using Barcode generator for Java Control to generate, create UPC Symbol image in Java applications.
www.OnBarcode.com
8
Creating EAN13 In Java
Using Barcode generator for Java Control to generate, create GTIN - 13 image in Java applications.
www.OnBarcode.com
USPS POSTNET Barcode Generation In Java
Using Barcode creation for Java Control to generate, create USPS POSTNET Barcode image in Java applications.
www.OnBarcode.com
Once the client has obtained the session key, it is able to use this to encrypt subsequent communications with the server. The use of the session key demonstrates that the client is who they claim to be (since they could only have acquired this by knowing the user s password, which is assumed to be a secret). Once the client has a session key, they are able to request another type of ticket, the service ticket from the server. This can be used to set up secure lines of communication with other processes, services, and users. Similar exchanges of keys and communication with the server allows third parties to verify the identity of the client as well as communicate securely with it.
Creating QR Code JIS X 0510 In None
Using Barcode encoder for Word Control to generate, create QR Code 2d barcode image in Word applications.
www.OnBarcode.com
Create QR Code In None
Using Barcode maker for Excel Control to generate, create QR Code image in Microsoft Excel applications.
www.OnBarcode.com
Java GSS-API
Barcode Generator In VB.NET
Using Barcode drawer for .NET Control to generate, create Barcode image in .NET applications.
www.OnBarcode.com
Painting Barcode In .NET
Using Barcode generator for .NET Control to generate, create Barcode image in VS .NET applications.
www.OnBarcode.com
JAAS is all very well for authenticating a user on our own server, but how does this help when you need to authenticate a user on another system One possible answer would be to store the username and password in the client; then make these available to remote systems as and when needed. This is not an especially desirable approach. There are various reasons for avoiding this, but the most compelling is that ultimately if any of the systems involved is compromised in any way (even if the channels of communication between them are otherwise secure), the user s password will become known. The GSS-API is not a specific mechanism (it does not define a protocol) but rather an API. It dictates how one goes about authenticating your application against a remote system without needing to know how the underlying mechanism is implemented. Once the identity of all parties has been established, the GSS-API also defines a standard for securing (encrypting) communications between them. The GSS-API itself is dictated in RFC (Request For Comments) document number 1508, and is therefore an open standard. Most of the infrastructure of the Internet is published in these documents and freely available for download from the Internet Engineering Task Force (IETF) web site at www.faqs.org. A series of subsequent RFC documents define the language-specific APIs. We are specifically interested in RFC 2853, which defines the Java bindings. The protocol implementations are then defined in additional documents. For our example we will be using the Kerberos authentication mechanism, which we have already encountered. RFC 1510 defines Kerberos v5, and RFC 1964 defines how GSS should use Kerberos. It is not necessary to read these in depth, but RFC documents tend to be written in an accessible manner, so it is worth glancing through them for insights into how things work at a level beyond the scope of this book. The code that follows demonstrates what is required to establish the authenticity of a client with a server using the Java GSS-API. In this example, we want to authenticate the user dave with the password MyPassword against a service
Painting PDF417 In None
Using Barcode generation for Online Control to generate, create PDF417 image in Online applications.
www.OnBarcode.com
UPC A Encoder In Objective-C
Using Barcode maker for iPad Control to generate, create GTIN - 12 image in iPad applications.
www.OnBarcode.com
Data Matrix ECC200 Printer In None
Using Barcode generation for Word Control to generate, create Data Matrix ECC200 image in Office Word applications.
www.OnBarcode.com
Print EAN-13 In Visual C#.NET
Using Barcode creation for Visual Studio .NET Control to generate, create European Article Number 13 image in .NET applications.
www.OnBarcode.com
Draw EAN-13 Supplement 5 In VB.NET
Using Barcode creator for Visual Studio .NET Control to generate, create EAN-13 Supplement 5 image in .NET applications.
www.OnBarcode.com
Barcode Printer In Objective-C
Using Barcode creation for iPhone Control to generate, create Barcode image in iPhone applications.
www.OnBarcode.com
Read PDF417 In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Creating UPC-A Supplement 5 In C#.NET
Using Barcode encoder for .NET framework Control to generate, create UPC Code image in Visual Studio .NET applications.
www.OnBarcode.com
Copyright © OnBarcode.com . All rights reserved.