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SECURING WEB SERVER 7.0 in .NET Integrating barcode code 128 in .NET SECURING WEB SERVER 7.0

SECURING WEB SERVER 7.0 using vs .net tobuild code 128b for asp.net web,windows application upc The User Agent s visual .net code128b ends a message to the Web Server, informing it that future messages from the User Agent are encrypted with the session key. It then sends a separate (encrypted) message indicating that the User Agent portion of the handshake is nished.

The Web Server sends a message to the User Agent informing it that future messages from the Web Server are encrypted with the session key. It then sends a separate (encrypted) message indicating that the Web Server portion of the handshake is nished. The SSL handshake is now complete, and the SSL session has begun.

The User Agent and the Web Server use the session keys to encrypt and decrypt the data they send to each other and to validate its integrity. As indicated in step 5, the Web Server can be con gured to request a User Agent s certi cate to validate the identity of the User Agent. The Web Server can be con gured to verify that the User Agent s certi cate is present in the user s entry in an LDAP directory before continuing with the session.

This con guration option provides one way of ensuring that the User Agent s certi cate has not been revoked. It is important to note that both User Agent and Web Server authentication involve encrypting some piece of data with one key of a public-private key pair and decrypting it with the other key. In the case of server authentication, the User Agent encrypts the premaster secret message digest with the Web Server s public key.

Only the corresponding private key can correctly decrypt the secret message digest, so the User Agent has some assurance that the identity associated with the public key is in fact the Web Server with which the User Agent is connected. Otherwise, the Web Server cannot decrypt the premaster secret message and cannot generate the symmetric keys required for the session, and the session is terminated. In the case of client authentication, the User Agent encrypts some random data with the User Agent s private key that is, it creates a digital signature.

The public key in the User Agent s certi cate can correctly validate the digital signature only if the corresponding private key was used. Otherwise, the Web Server cannot validate the digital signature, and the session is terminated..

8.3 AUTOMATING M AINTENANCE OF CERTIFICATE REVOCATION LISTS (CRLS). 8.3 Automating M .net vs 2010 barcode code 128 aintenance of Certi cate Revocation Lists (CRLs).

Applications tha t rely on Public Key Infrastructure (PKI) certi cates as part of their security design generally implement some mechanism for ensuring that those certi cates are valid. One common mechanism is obtaining a list of revoked certi cates (called a CRL or certi cate revocation list) from the Certi cate Authority that issued them. Applications that rely on up-to-date certi cate information generally obtain the latest versions of CRLs on a periodic basis and update their trust databases accordingly.

. Note: VeriSign m Code 128 Code Set A for .NET aintains the crl.verisign.

com web site where applications can obtain a list of current certi cate revocation lists.. Previous version s of the Web Server allowed administrators to update the list of CRLs in the Administration Server through either the Administration GUI or with the crlutil command-line utility. The drawback to previous versions of the Web Server is that the instance had to be restarted after every CRL update. Web Server 7.

0 supports a dynamic CRL refresh that allows an administrator to con gure the Web Server to check for updated CRLs in a particular le system directory and process any CRLs found in the directory. In Web Server 7.0 this does not require a server restart.

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