Of course, if you were using a version of Firefox as old as Windows XP is, it probably wouldn't work either. Google for this solution and beware it is natively for English OS version, otherwise you need to modify the installation files.
It might be that some developer can do it, but why should somebody invest its time to support an OS which is dead and insecure just to support browsers which are no longer supported Chrome will drop support end of If you feel this needs to be done anyway just do it. Otherwise, drop XP or at least use Firefox with it. So I ran into an issue where the very opposite from what you are asking.
A client was on a windows 7 machine and needed to access time warner business email through chrome but couldn't because of a SSL issue. The problem was that Chrome dropped support for the older version of SSL and so her options where use IE or Firefox or downgrade and hope chrome doesn't force its self to update.
Microsoft is wanting users to upgrade so of course they are not going to keep IE up to date and google isn't going to support an outdated operating system. Firefox is open source so it makes sense that people would keep the browser compatible with as many devices as possible. Hope this helps. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?
Collectives on Stack Overflow. Learn more. Ask Question. Asked 6 years, 1 month ago. Active 2 years, 11 months ago. Viewed 31k times. Improve this question. Banderi Banderi 1 1 gold badge 7 7 silver badges 28 28 bronze badges. More information please. What is an example of a web site that doesn't work? This website doesn't work on XP but works on Seven. Add a comment. Active Oldest Votes. Improve this answer. Harry Johnston Harry Johnston Details required :. Cancel Submit. Jessen P.
Hello, Hide the Windows Update and see if it helps. How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. This site in other languages x. The subject and serial number in the AKI extension in the certificate on the left match the serial number and subject of the certificate on the right.
Figure 8 shows a scenario where key matching is used to find the issuing CA certificate. The hash of the public key in the AKI extension for the certificate on the left matches the hash of the public key in the SKI extension of the certificate on the right.
Figure 9 illustrates name matching between a root CA certificate and a certificate that was issued by a root CA. The root certificate shown on the right does not include an AKI extension, so name matching is used to match the issuer and subject attributes of the certificate.
By default, the following information is stored in the AIA extension of issued certificates. The default Windows behavior could result in incomplete chains if the CA certificate used to sign the issued certificate was not available to the client. With the Windows Server default behavior, if the CA was renewed with the same key pair, any CA certificate for the issuing CA that uses the same key pair could be included in the certificate chain.
You can change the Windows CA behavior to match the Windows Server behavior by typing the following commands at a command-line prompt. Note These commands disable the inclusion of the issuername and issuerserialnumber in the AIA extension of certificates issued by the CA. Certificates that were issued prior to the execution of the previous commands remain unmodified. The CA architecture has an effect on the chain-building process. Before a distinct certificate chain is considered valid, the chaining engine builds all chains that are possible with the certificate that is being verified.
If an end-entity certificate was generated by a freshly set up CA, the certificate chain is straightforward. However, a certificate that was issued by a renewed CA or where a cross-certification exists between the issuing CA and another CA, multiple certificate chains might exist. The best quality chain for a given end certificate is returned to the calling application as the default chain.
For more information on the chain-building process for different CA infrastructures, see the Appendices. The models discussed include:. If application policies, issuance policies, or name constraints are defined within a CA certificate or Cross-Certification Authority certificate, the CryptoAPI will indicate to a calling application only certificate chains that match the defined policies.
Note The application policy extension allows the use of application policy mapping. This is subject to a certificate closer to the root CA and not inhibited by policy mapping. Note The CryptoAPI method of applying name constraints is not compliant with RFC , which requires name constraints defined at a CA to be applied to every certificate in the chain that is subordinate to the certificate where the name constraint is defined.
All certificates in a certificate chain are processed to verify that none of the certificates is revoked. Revocation checking is optional from an application standpoint and may not be enforced by CryptoAPI. When this functionality has been invoked, each certificate in the certificate chain is checked against the CRL that is referred to in the CDP extension in the certificate. These steps are performed with each certificate in the chain. These steps include:. Important The Windows operating system family can only verify a CRL that was signed by the same private key used to sign the issued certificate.
If a third-party revocation provider supporting OCSP has been registered, an OCSP responder will be used for certificate status checking; in this case, the following process applies for certificate status checking. Multiple revocation providers can be added to CryptoAPI depending on revocation requirements. For example, a company may want to deploy an OCSP responder on the intranet to speed up responses but leave an external URL for users or customers outside of the firewall.
If multiple certificate verification dynamic link libraries DLLs are registered, for example, the default cryptnet. Two implementations of certificate revocation checking exist. Depending on the CryptoAPI version, the revocation checking is performed during or after the chain-building process. Generally, CryptoAPI first searches the local certificate stores and the local cache for any CRL signed by the issuer Certification Authority of the certificate being validated.
The following logic is used to evaluate the CRL. Note The existence of a revoked certificate in a certificate chain does not preclude the chain from being presented to the calling application as the best quality certificate chain.
The best quality chain may not necessarily be a trustworthy chain. If the client is able to resolve the hostname in the URL reference but no CRL is physically available, the client will attempt to download the CRL for the default threshold of 10 seconds.
The first CDP location is given a maximum of 10 seconds to succeed. Subsequent CDP locations each will use a maximum of one half of the remaining time to retrieve a specific CRL object before continuing to the next location.
Each location download is attempted in sequential order. If certificate revocation checking is invoked, CryptoAPI will, in the case of the default revocation provider, examine a presented certificate for a CDP that indicates where the base CRL is published. Note When calling the chain-building engine, the calling application can specify the policy or target for the revocation freshness information.
The policy can, for example, specify that revocation information may be as old as eight hours, so if a base CRL or delta CRL is found, which was published only six hours previously, the chain-building engine will not attempt to retrieve a new delta CRL or base CRL. The revocation provider may look for an updated delta CRL once the publication period has elapsed.
Windows clients without the MS security update will only examine base CRLs during the revocation checking process. It is possible that two certificate chains will have the same weight. In this case, the following process is used to select one certificate chain over the other.
The newest chain will be selected. Starting at the end certificates, the issuance date will be compared between the certificate chains, and the most recently issued certificate will be selected. If the end certificates were issued at the same time, the process is repeated at the issuing CA certificate of the end certificate, until one chain is determined to be newer than the other chain.
The application may decide if a different chain than the default chain is used. In these versions, the CryptoAPI would incorrectly select a revoked certificate if a CA in the chain had two certificates, where one certificate was active and the other certificate was revoked. Without the patch described in Microsoft KB article , the chaining engine would select the chain with the revoked certificate, rather than the chain with the active certificate.
Certificate status checking also verifies cross-certification, which can limit the validity scope of certificates. With such constraints, a certificate administrator decides whether certificates can be used for distinct purposes such as validation of subordinate CAs, cross-certification of CAs, or to enable an end-user application. The status codes are defined in wincrypt. Note: Some of the lines in the following code have been displayed on multiple lines for better readability.
The local machine Trusted Root Store is managed through a policy container in Active Directory that contains root CA certificates that are added to the following location.
A unique key for each root CA certificate is added using the thumbprint hash of the certificate as the key name. The local machine Enterprise Trust Store is managed through a policy container in Active Directory that contains CTLs that are added to the following location. Trust policy management settings can be split into current settings and new settings. Both the current and new settings are system-wide settings that are set on a per-machine basis and apply to all users who log on to the machine.
The following values are bitmask values that may be added and applied to affect the local machine policy. Both user stores and machine inherited stores will be supported. Trusted publisher policy will be a union of user, machine, and local trusted publisher stores. The policy path in the registry is the following for both machine AND user policy.
Note Trusted Publisher revocation checks, when configured, always ignore revocation offline errors. This policy will stay in effect for Longhorn and not be configurable.
Figure 10 shows an example of a single CA, where the CA certificate has been renewed with the same key pair. In a single CA topology, the number of certificate chains that are built depends on the renewal status of the root CA. For all certificate chains, the root CA certificate is the start of the chain, and the chain terminates at the end-entity certificate.
Regardless of the matching algorithm, the chain-building engine will choose the CA certificate of CA1 as parent certificate. Assume that the certificate for User1 was signed with the CA1 certificate with the serial number 6e5f. If the certificate of CA1 was renewed using the existing key material, the chain-building engine can build different chains depending on the matching algorithm because the SKI is the same for both CA certificates.
In a multi-tier topology, multiple CAs are organized in a structure with a single root CA. Assume that the renewal for CA was used with a new key generation, whereas for CA11, the same key-set was used. In the case of an exact match, all certificates in the chain excluding the root would contain the subject, the serial number, and possibly the subject-key identifier of the issuing CA in the AKI extension.
Table 5 shows the details of the certificate chain. Again, an exact match is used when building the certificate chain because the AKI of the issued certificates includes the details necessary to find the exact CA certificate used to sign the issued certificate.
In this example, if the AKI of the issued certificate contained the key ID of the CA certificate that issued the certificate, a single chain would be built. Because the CA11 certificate is renewed using the same key pair, two certificate chains can be formed by the chaining engine as shown in Figure As you can see, the only certificate in the two certificate chains that differs is the CA11 certificate.
Because the CA11 certificate was renewed with the same key pair, either CA11 certificate is valid in the certificate chain. If the issued certificates do not have an AKI extension, a name match is used to build the chain.
For the initial certificate, the same certificate chain is built, but the chain is built by matching the Issuer Name field in the issued certificates to the Subject Name field in the CA certificates as shown in Figure Because no AKI extension exists in the certificates, the chaining engine can build four possible CA chains as shown in Figure Cross-certification allows two organizations to establish a trust relationship between PKI topologies.
There are several different ways that topologies can be cross-certified. Figure 21 shows cross-certification between root CAs. Because of the cross-certification, several paths can be built. Figure 22 shows the first path that can be built uses exact matches to build a chain that chains to the Root CA certificate for CA1.
This chain is shown in Figure This chain would be built by any application running on a computer that has the CA1 certificate in its trusted root store. This shows that the certificate chain is built using a combination of exact matches and key matches. This chain would be built by any computer that includes CA2 in the trusted root store. Note If a computer included both CA1 and CA2 in its trusted root store, the certificate-chaining engine will always prefer the shorter of the two chains.
Cross-certification may also take place between subordinate CAs, rather than between root CAs as shown in Figure The actual design may vary depending on specific organizational or business requirements.
If the certificate chain is evaluated by a computer that has the CA2 in its trusted root authority store, a chain is built that includes the CrossCA certificate issued by CA21 to CA When the chaining engine completes the chain-building process, the chain shown in Figure 26 is built.
As was the case with the previous chain, each certificate in the chain was found by using a key match. Important The Windows certificate-chaining engine is configured to not propose paths that contain the same certificate more than one time. This prevents the cross-certification path from being presented more than once in a certification path. A bridge CA deployment requires a level of trust between the partner organizations and the organization hosting the bridge CA.
A common scenario where this is deployed is a large organization with mainly independent subsidiaries. A bridge CA structure takes cross-certification between two organizations and extends the model to allow multiple organizations to configure trust between their CA hierarchies. Figure 27 shows a bridge CA that links three separate CA hierarchies. In this cross-certification example, different certification paths can be built for the user certificate.
If your computer includes CA1 in the trusted root store, the simple chain shown in Figure 28 Error! Reference source not found. The chaining engine builds a different chain when CA2 is located in the trusted root store. Figure 29 shows the chaining engine also uses a combination of exact matching and key matching to build the certificate chain. The chaining engine takes a slightly different approach when CA3 is located in the trusted root store of the computer evaluating the User1 certificate as shown in Figure The exclusion of the AKI in the certificate causes the certificate-chaining engine to use a name match to select the CA3 root CA certificate.
When CA0 is included in the root CA store, the certificate chain shown in Figure 31 is built by the certificate chaining engine. Note In addition to the certificate paths, additional paths can exist if any of the CAs in the shown certificate paths renews its CA certificates. Office Office Exchange Server. Not an IT pro? United States English.
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