vb.net code 39 reader Estimated Relative Performance of the Public-Key Algorithms in Software

Making Code 39 in Software Estimated Relative Performance of the Public-Key Algorithms

Table 4-2 Estimated Relative Performance of the Public-Key Algorithms
Recognize Code-39 In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Code-39 Generator In None
Using Barcode drawer for Software Control to generate, create USS Code 39 image in Software applications.
RSA Public key (initiate contact) Private key (receive message) Combined 1 13 14 DH 32 16 48 ECC 18 6 24
Scanning USS Code 39 In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
Paint ANSI/AIM Code 39 In C#.NET
Using Barcode encoder for Visual Studio .NET Control to generate, create USS Code 39 image in .NET applications.
ECC with Acceleration
Code 39 Full ASCII Encoder In .NET Framework
Using Barcode creator for ASP.NET Control to generate, create Code 3/9 image in ASP.NET applications.
Generating Code-39 In .NET
Using Barcode printer for .NET framework Control to generate, create ANSI/AIM Code 39 image in Visual Studio .NET applications.
2 20
USS Code 39 Creation In VB.NET
Using Barcode generation for Visual Studio .NET Control to generate, create Code 39 image in .NET applications.
Make Data Matrix 2d Barcode In None
Using Barcode creation for Software Control to generate, create ECC200 image in Software applications.
4
Printing USS Code 128 In None
Using Barcode drawer for Software Control to generate, create USS Code 128 image in Software applications.
Printing Universal Product Code Version A In None
Using Barcode creation for Software Control to generate, create UPC-A Supplement 2 image in Software applications.
Transmission Size
Generating Bar Code In None
Using Barcode maker for Software Control to generate, create bar code image in Software applications.
Code39 Generator In None
Using Barcode drawer for Software Control to generate, create Code 39 image in Software applications.
What if the amount of money it costs or the time it takes to transmit bits across the wire (or in the air) is significant It turns out that the algorithms differ in the size of the transmission. With RSA and DH, transmission size is the same as the key size. With ECC, you send twice the key size. So using a 1,024-bit RSA or DH key pair means that each time you send a digital envelope, you re adding 1,024 bits to the message. With a 160-bit ECC key, you re adding 320 bits.
Encoding MSI Plessey In None
Using Barcode printer for Software Control to generate, create MSI Plessey image in Software applications.
Bar Code Creation In None
Using Barcode encoder for Online Control to generate, create barcode image in Online applications.
Interoperability
European Article Number 13 Scanner In VB.NET
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in .NET applications.
Encoding USS-128 In Java
Using Barcode drawer for Java Control to generate, create EAN / UCC - 14 image in Java applications.
With symmetric-key crypto, if you want to make sure that someone else can decrypt your ciphertext, you should use DES, Triple DES, or AES. Any correspondents who have crypto will have those algorithms. You may want to use RC4 or RC5 because they re faster, but to ensure interoperability, you might choose the algorithm you know everyone has. Can the same be said in the public-key world For the most part, yes. RSA is almost ubiquitous and has become the de facto standard. If you send an RSA digital envelope, the recipient will almost certainly be able to read it, whether or not your correspondent uses the same application you do. With DH, there s a good chance that the other party will have the necessary code, but it s not as widespread. ECC is even less prevalent than DH. Most applications using ECC today are closed, meaning that they talk only to themselves. The vast majority of those are in the United States. You will find very little ECC used in Europe. Another problem with ECC and interoperability is that the flavors of curves (Fp and F2) are not interoperable. If you have code that does Fp and your correspondent has code that does F2, you can t talk to each other. In the future, the interoperability issue may go away for ECC if more people adopt it and the world settles on a single class. But until that time, your best bet is to use RSA.
Bar Code Encoder In Java
Using Barcode encoder for Android Control to generate, create barcode image in Android applications.
Reading UPC - 13 In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
Protecting Private Keys
Encoding GTIN - 13 In Visual Basic .NET
Using Barcode creator for .NET Control to generate, create EAN-13 Supplement 5 image in Visual Studio .NET applications.
USS Code 128 Generation In None
Using Barcode drawer for Font Control to generate, create Code 128B image in Font applications.
Throughout this chapter, we emphasize the importance of keeping a private key private. How do you do that The quick answer is that most of the
The Key Distribution Problem and Public-Key Cryptography
techniques mentioned in 3 for protecting session keys apply to private keys. For example, suppose you want a key pair. You ll most likely run a program that generates it for you. You make the public key available to the world, and you store the private key on your computer. Of course, simply storing data on your computer is not safe, so you ll probably store it encrypted, using password-based encryption. When you run the program that uses the private key (for example, when you receive some encrypted e-mail), it loads the data. You enter your password, the program uses it to decrypt the key, and now you can open the envelope. You can also store the private key on a smart card or other token. The card will generate the key pair and return the public key for you to distribute, but it probably won t allow the private key to leave the device. To open an envelope, you give the token the encrypted session key (if you re using RSA) or the sender s temporary public key (if you re using DH or ECDH). The token performs the private key operation and returns the session key to you. For servers, crypto accelerators might be used. They behave the same way as tokens except that they re much faster.
Copyright © OnBarcode.com . All rights reserved.