How can I add a new signature with PKCS1?

The default Acrobat sign method is the PKCS7, how to change PKCS1?

Thank you!

Hello

There are two different points here, you can take. One way is to define a starting value that works on a per signature each field and the other is to make a change in the registry, which works on a general basis. Of course, a change in the registry, that it's on a per computer basis where, as starting value, because it is on a per document basis will travel from one computer to the other.

If you want to set the starting value, it's done via JavaScript. Go to http://livedocs.adobe.com/acrobat_sdk/9/Acrobat9_HTMLHelp/wwhelp/wwhimpl/js/html/wwhelp.ht m? href = JS_API_AcroJS.88.1.html #1515776 & accessible = true and click on the Search button and search for "starting value". When he returns, click on "signatrueSetSeedValue" and then scroll down to 2 example to see how to set the sous-filtre. You will have to use value adbe.x509.rsa_sha1 as opposed to what is shown in the example.

If you prefer to make global change to the computer, you must edit the registry (Windows) or plist (Mac). I'll give you an example for Windows, but if you need help with the Mac made me know. Run regedit , and then go to HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\9.0\Security\cPubSec with the following restrictions. First of all, if you use the player, as opposed to Acrobat, change \Adobe Acrobat\ to \Acrobat Reader\. The other thing is, if you use an earlier version of Acrobat change "9.0" for the major version number, that you are running. Even if you use the 8.1 version that you would still look for 8.0.

Now that you have navigated to the correct location, add the value binary "aSignFormat" (without the quotes). Then, edit the value and click on the right side of the dialog box and add the same string of plain text above for use with the starting value. Please see the attachment (click on the link below to open the image, then click the black X to close) screenshot. One important thing to note here, that is the string must be NULL terminated. After that you have plain text string type in the right side of the dialog box, click on in the end on the hexadecimal string on the left side and type a zero. You will notice that it adds what appears to be a point at the end of the string of text to the right, but is not really a point.

I hope this helps.

Steve

Tags: Acrobat

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