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Sometimes, when we try to place a digital signature in a PDF file with specially developed software, an error message appears with one of the following descriptions:
The Windows cryptographic service provider reported an error. Specified invalid vendor type, invalid signature, security breach, code 2148073504 or missing key set
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In most cases, the problem is caused by obsolete certificates or corrupted registry settings. So, the first thing you want to do is to reset or recreate the user profile in the domain to check the result.
The cryptography service provider reported an error
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(1) According to Microsoft, a cryptography service provider (CSP) contains cryptographic standards and algorithm implementations. A CSP consists of at least one Dynamic Link library (DLL), which implements the functions in CryptoSPI (a system program interface). Providers implement cryptographic algorithms, generate keys, provide key memories and authenticate users.
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If you are faced with errors, here are some things you might want to try:
1] Run services.msc and restart the Windows cryptographic service.
2] Open Internet Explorer > Tools > Internet Options. Select the Content tab and click Certificates. Check whether there is a certificate for the program or vendor issuing errors. If it is missing, you must create a new one. When it expires, remove it and create a new one. If a particular certificate does not work, select another certificate and delete the old certificates.
5] Reinstall the user’s entire certificate list and certificates.
6] If you have installed the SafeNet Authentication Client Tool on your system, open the application by navigating to its installation directory or right-clicking the SafeNet icon in the taskbar and selecting Tools from the menu.
Click on the’Gear’ icon to open the’Extended View’ area. Under Advanced View, expand the Token area and navigate to the certificate you want to use for signing. You can find them in the User certificates group.
Right-click your certificate and select Set as CSP from the drop-down menu. Repeat the same step for all certificates you use.
Close SafeNet Client Tools Authentication and try signing the documents again.
7] Recreate the Microsoft Cryptography Local Store folder. Navigate to the folder C:ProgramDataMicrosoftCryptoRSA. Rename the folder to S-1-5-18. Reboot your system and see if it helps.
8] If you have installed the ePass2003 software, the cause of the problem may be the e-token ePass2003. It is recommended to uninstall and reinstall it first. To do this, go to the Tool Settings section, navigate to the applications and features and uninstall it like any other application.
Restart your computer and reinstall ePass2003. When reinstalling, be sure to select MicroSoft CSP if you select the CSP option. Things should return to normal and the Windows encryption service provider error should no longer occur.
Best wishes!
Advanced literature: Windows services do not start.
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