vb.net code 128 reader Real-World Examples in Software

Drawer Code 39 Extended in Software Real-World Examples

Real-World Examples
Code-39 Reader In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Paint ANSI/AIM Code 39 In None
Using Barcode generator for Software Control to generate, create Code 39 image in Software applications.
How do companies protect keys in the real world One class of products for protecting session keys is file encryption applications. These products
Scanning Code 39 In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
Code 39 Generation In Visual C#.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create Code-39 image in VS .NET applications.
Symmetric-Key Management
USS Code 39 Generator In VS .NET
Using Barcode drawer for ASP.NET Control to generate, create Code 39 image in ASP.NET applications.
Code 3/9 Creation In VS .NET
Using Barcode creator for Visual Studio .NET Control to generate, create Code 39 Full ASCII image in VS .NET applications.
encrypt the files on your hard drive using symmetric-key cryptography. Protecting bulk data keys can be done in several ways.
Make ANSI/AIM Code 39 In Visual Basic .NET
Using Barcode drawer for .NET framework Control to generate, create Code-39 image in .NET applications.
GS1-128 Maker In None
Using Barcode drawer for Software Control to generate, create EAN 128 image in Software applications.
Keon Desktop
EAN-13 Creator In None
Using Barcode generation for Software Control to generate, create European Article Number 13 image in Software applications.
Bar Code Encoder In None
Using Barcode printer for Software Control to generate, create bar code image in Software applications.
RSA Security makes a family of products called Keon. One component is Keon Desktop. Among the features of this product is file encryption. You register directories with Keon, and it will encrypt all files in those directories (see Figures 3-9 and 3-10). When you open one of those files, Keon will decrypt it. When you close it, Keon will encrypt it again. That means if the file is on your hard drive, it is encrypted. It is decrypted only when you want to see it.
Paint Data Matrix In None
Using Barcode printer for Software Control to generate, create Data Matrix 2d barcode image in Software applications.
Code 39 Full ASCII Creation In None
Using Barcode generator for Software Control to generate, create Code39 image in Software applications.
Figure 3-9 Registering a directory with Keon. Once registered, all files in this directory will be automatically encrypted when not in use, and decrypted when accessed
Postnet 3 Of 5 Creator In None
Using Barcode printer for Software Control to generate, create Postnet 3 of 5 image in Software applications.
UCC.EAN - 128 Maker In Java
Using Barcode generator for Android Control to generate, create GTIN - 128 image in Android applications.
Figure 3-10
Create Matrix Barcode In Visual Studio .NET
Using Barcode generation for ASP.NET Control to generate, create Matrix 2D Barcode image in ASP.NET applications.
Decoding Barcode In .NET
Using Barcode Control SDK for ASP.NET Control to generate, create, read, scan barcode image in ASP.NET applications.
3
EAN 128 Creation In VB.NET
Using Barcode creation for .NET framework Control to generate, create USS-128 image in Visual Studio .NET applications.
Create Data Matrix In Java
Using Barcode maker for Eclipse BIRT Control to generate, create Data Matrix image in BIRT applications.
After creating a protected directory, choose the algorithm you want to use to encrypt the files. The key menu is for choosing where to store the session key, on a smart card or a virtual smart card
Code 128A Generator In None
Using Barcode generation for Font Control to generate, create Code 128 Code Set B image in Font applications.
Scanning Code 128 In Visual Basic .NET
Using Barcode reader for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Keon uses RC5 at 128 bits or DES at 56 bits to encrypt. It uses a PRNG to generate the key. The seed is various machine states and user input. Once the key has been used to encrypt the files, it s necessary to store that key. Keon stores it in the user s Credential Store. If the user has a smart card, Keon will use it as the Credential Store. If not, Keon will create a virtual smart card on the user s hard drive or on a floppy disk or both. The keys on this virtual smart card are protected using PBE. If you keep your Credential Store on a mobile medium (the smart card or floppy), you can use Keon to encrypt or decrypt files from any computer you work on (as long as it has Keon Desktop installed), whether it is your office computer, home computer (for telecommuting), or a laptop on a business trip. To read your encrypted file, an attacker will have to either break the encryption algorithm, create a substitute Credential Store (which would entail finding the session key through a brute-force attack) or break your Credential Store to obtain the bulk data key. The first two are highly unlikely, so an attack, if it occurs, will probably be mounted against your Credential Store. If you keep it on a smart card or floppy, the attacker will have to steal it. And then it will still be necessary to either break the smart card or break your password.
AM FL Y
Symmetric-Key Management
Other Products
If you search the Web, you will find dozens or even hundreds of applications out there that offer file encryption. Some are freeware, others are shareware, and some are regular products. One of the most commonly used file encryption programs is PGP. The letters stand for Pretty Good Privacy. PGP was originally a freeware program written by Phil Zimmerman using RSAREF, the cryptographic reference library produced by RSA Data Security. According to the documentation, it has file encryption through PBE (it does not generate a key and protect the key with PBE; it encrypts the file using PBE). It also offers an advanced enveloping file encryption that uses a key on your key ring. Once again, your key ring can be a number of devices, including a PBE-protected file.
This page intentionally left blank.
CHAPTER
The Key Distribution Problem and Public-Key Cryptography
Symmetric-key encryption can keep your secrets safe, but if you need to share secret information with other people, you must also share the keys. How can you securely send keys to other individuals This chapter describes some solutions, including the revolutionary concept of public-key cryptography. s 2 and 3 describe how Pao-Chi (the sales rep on the road) can keep secrets by encrypting his data and then safely storing the encrypting key. But suppose he wants to share some of his secrets with other people For example, let s say Pao-Chi has just met with Satomi, a potential customer, and wants to discuss strategy with Gwen, the VP of sales and PaoChi s boss. Normally, Pao-Chi and Gwen could handle the conversation by phone, but they need to send complex documents back and forth, and they figure the best way to do that is through e-mail. Being a little paranoid, they want to ensure the security of this exchange of sensitive data. After all, Pao-Chi will likely be hooking up his laptop to Satomi s phone lines or Internet connection, and who knows what sort of sniffers are attached to her company s wires The simple solution is for Pao-Chi to encrypt any files he sends to Gwen. In that way, if Satomi intercepts the message, all she sees is gibberish. The problem is that when the message gets to Gwen, she also sees
Copyright © OnBarcode.com . All rights reserved.