vb.net ean 128 reader Public-Key Infrastructures and the X.509 Standard in Software

Encoding Code 3/9 in Software Public-Key Infrastructures and the X.509 Standard

Public-Key Infrastructures and the X.509 Standard
Decode Code 39 In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Code 3 Of 9 Drawer In None
Using Barcode maker for Software Control to generate, create Code 39 image in Software applications.
Standard Version 3 Certificate Extensions
Code39 Scanner In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
Creating Code 3 Of 9 In C#
Using Barcode maker for VS .NET Control to generate, create Code 3 of 9 image in .NET framework applications.
After the release of Version 2, it was apparent that the certificate profile still contained deficiencies. For this reason, a set of extensions was created to append to the Version 3 format of the certificate. These extensions cover key and policy information, subject and issuer attributes, and certification path constraints. The information contained in extension fields can be marked as either critical or noncritical. An extension field has three parts: extension type, extension criticality, and extension value. The extension criticality tells a certificate-using application whether it can ignore an extension type. If this extension is set to critical and the application does not recognize the extension type, the application should reject the certificate. On the other hand, if the extension criticality is set to noncritical and the application does not recognize the extension type, it is safe for the application to ignore the extension and to use the certificate. The following standard certificate extension fields are available only in Version 3 certificates:
USS Code 39 Encoder In .NET Framework
Using Barcode creator for ASP.NET Control to generate, create Code 3/9 image in ASP.NET applications.
ANSI/AIM Code 39 Drawer In Visual Studio .NET
Using Barcode printer for Visual Studio .NET Control to generate, create Code 3/9 image in Visual Studio .NET applications.
Authority Key Identifier This extension is used to differentiate between multiple certificate signing keys of the same CA. The CA provides a unique key identifier or provides a pointer to another certificate, which can certify the issuer s key. The RFC2459 mandates the use of this field for any certificate that is not self-signed. Subject Key Identifier This extension is used to differentiate between multiple certificate signing keys of the same certificate owner. The owner provides a unique key identifier or provides a pointer to another certificate that can certify the issuer s key. RFC2459 mandates the use of this field for any CA signing certificate and also recommends it for end entities. Key Usage This extension is used to define restrictions on the operations that can be performed by the public key within this certificate. Such operations include digital signature, certificate signing, certificate revocation list (CRL) signing, key enciphering, data enciphering, and Diffie-Hellman key agreement. This field can also be flagged as critical or noncritical. If it is flagged critical, it can be used only for its intended use; otherwise, it will be considered in violation of the CA s policy. RFC2459 recommends a flag of critical when this field is used.
Making Code 39 Extended In VB.NET
Using Barcode creation for .NET framework Control to generate, create Code-39 image in .NET applications.
Bar Code Creation In None
Using Barcode maker for Software Control to generate, create bar code image in Software applications.
6
Barcode Maker In None
Using Barcode maker for Software Control to generate, create barcode image in Software applications.
Draw GS1 - 13 In None
Using Barcode generation for Software Control to generate, create EAN-13 image in Software applications.
Extended Key Usage This extension can be used in addition to or in place of the Key Usage extension to define one or more uses of the public key that is certified within this certificate. This extension enables the certificate to interoperate with various protocols and applications (such as, Transport Layer Security [TLS] server authentication, client authentication, time stamping, and others). RFC2459 states that this field may be flagged critical or noncritical. CRL Distribution Point This extension indicates a uniform resource identifier (URI) to locate the CRL structure where revocation information associated with this certificate resides. RFC2459 recommends that this field be flagged noncritical, although it also recommends that CAs and applications support this extension. Private Key Usage Period Similar to the Validity field of the certificate, this extension indicates the time frame of use for the private key associated with the public key in this certificate. In the absence of this extension, the validity period of use for the private key is that of the associated public key. RFC2459 recommends against the use of this extension. Certificate Policies This extension identifies the policies and optional qualifier information that the CA associates with the certificate. If this extension is marked critical, the processing application must adhere to at least one of the policies indicated, or the certificate is not to be used. To promote interoperability, RFC2459 recommends against the use of policy identifiers, but it does specify two possible qualifiers: the certification practice statement (CPS) qualifier and the user notice qualifier. The CPS qualifier contains a pointer to a CPS that applies to this certificate. The notice reference qualifier can be made up of a notice reference or an explicit notice (or both), which can in turn provide a text message of the policy required for this certificate. Policy Mappings This extension is used only when the subject of the certificate is also a CA. It indicates one or more policy object identifiers (OIDs) within the issuing CA s domain that are considered to be equivalent to another policy within the subject CA s domain. Subject Alternative Name This extension indicates one or more alternative name forms associated with the owner of this certificate. Use of this field enables support within various applications that employ their own name forms, such as various e-mail products, electronic data interchange (EDI), and IPSec. RFC2459 specifies that
Printing UPC-A Supplement 5 In None
Using Barcode creator for Software Control to generate, create UPC A image in Software applications.
Data Matrix 2d Barcode Generation In None
Using Barcode encoder for Software Control to generate, create DataMatrix image in Software applications.
Printing International Standard Book Number In None
Using Barcode printer for Software Control to generate, create ISBN image in Software applications.
Barcode Creation In None
Using Barcode creation for Online Control to generate, create barcode image in Online applications.
Painting EAN / UCC - 13 In Objective-C
Using Barcode printer for iPhone Control to generate, create EAN / UCC - 13 image in iPhone applications.
EAN128 Generation In Visual C#
Using Barcode generation for .NET framework Control to generate, create UCC-128 image in .NET framework applications.
EAN13 Encoder In VB.NET
Using Barcode printer for VS .NET Control to generate, create EAN-13 Supplement 5 image in .NET applications.
UCC - 12 Generation In Objective-C
Using Barcode generation for iPad Control to generate, create UPCA image in iPad applications.
Matrix 2D Barcode Generator In .NET Framework
Using Barcode generator for .NET Control to generate, create 2D Barcode image in VS .NET applications.
Painting GS1-128 In Objective-C
Using Barcode drawer for iPad Control to generate, create UCC.EAN - 128 image in iPad applications.
Copyright © OnBarcode.com . All rights reserved.