Append signature block using signtool

I successfully signed using signtool.exe which is part of Windows sdk.
signtool sign /fd sha256 /a /f lost.pfx <filename>
I am able to see the file name signed however I attempted the /ac option of signtool which adds additional entries to signature block. So I used following syntax however resulted in error:
signtool sign /fd sha256 /a /ac lots1.pfx <filename>. Is this a proper usage? If not what would be the proper usage of this switch.
Additional question is the file being signed as a typical PE format file, so I am not sure signing twice with different certificate is allowed? Thanks,

Thanks this syntax works. But looks like more work ahead of me. The signing completed successfully however its certificate area still contain one certificate. Comparing the certificate only the one specified with the /f was there.
Also when verifying the signed file with verify /ph switch, threw out this error:
Signtool error: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.
FILE is not stamped
Number of files successfully verified: 0
number of warnings: 0
number of errors 1:
Still looking what is the issue here. However I still see this error when signing without additional file (/ac) so this error does not seem to be specific to /ac switch. It just appears, there is still one certificate in the file after signing.

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I get the below exception when verifying a signed jar.The public key is from the certificate created from the Bouncy Castle's Provider
java.lang.SecurityException: cannot verify signature block file META-INF/LVL1
     at sun.security.util.SignatureFileVerifier.processImpl(SignatureFileVerifier.java:202)
     at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:176)
     at java.util.jar.JarVerifier.processEntry(JarVerifier.java:276)
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I have JRE 1.5.0_14 in the client machine.
Once this exception comes, no matter how many times I tried to relaunch the application same exception (cannot verify signature block is shown. Once i restart the server, its working fine.
Regarding jardiff, Yes. we use it.
Also, this exception is not shown on every machine which are trying to download same update. Only on few..
Any idea regarding this, please share it.
Chakri
Edited by: chakriv on Mar 22, 2010 9:02 PM

How to remove/displace default signature-block in a widget ?

I want the signature to be placed in some other position in the document unlike at the bottom. So while creating pdf form by Adobe Acrobat, I created a new signature field and placed at my desired position.
But, when I created a wedget through API with the pdf form, Its still showing the default signature block at the bottom of doc/pdf in the widget in addition the signature field I created. Now it is showing two signature fields.
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https://www.echosign.adobe.com/en/support/knowledgebase/Add_form_fields_and_signature_bloc ks_to_my_documents_through_EchoSign_text_tags.html

How do I write javascript for a text block to extract name from signature block?

Hello,
I've created a training certificate that the trainee has to sign electronically. To prevent someone from simply putting in their friends name in there and saving it; to send to their friend and help them from having to take the training and quiz I would like to write a javascript in the text block that would extract the name from their signature block and autofill the name in the text block. Is there a way to do this?

You would have to use JavaScript to access the signature field object and then you can access the various properties of the signature depending upon the certificate or method for signing.
signatureInfo
console.show();console.clear();
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Hello,
We are planning to integrate AssureSign Signature handling on our Forms.
Since this is the first time, I would like to reach out the more knowledge people in the group to see if we can get some assistance in getting an overview on how to go about using the "AssureSign Signature Block" feature of Documaker Objects.
Appreciate any guidance given to us!
Documaker Version 12.2
Thanks!

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Cannot verify signature block SecurityException during version update

Hi all,
I have my application installed on few systems using webstart. All the jars(including third party are signed by my certificate).
After that, during an update, I signed all the jars using a new certificate.
I have placed new jars in the cache server(Tomcat 5.0) and started it.
Now I made necessary version changes in the JNLP file(while the server is running).
When I started application on client machines, it tried to bring get the jars of updated version.
During that process, following exception is shown while downloading a thirdparty jar:
java.lang.SecurityException: cannot verify signature block file META-INF/ABC
     at sun.security.util.SignatureFileVerifier.processImpl(Unknown Source)
     at sun.security.util.SignatureFileVerifier.process(Unknown Source)
     at java.util.jar.JarVerifier.processEntry(Unknown Source)
     at java.util.jar.JarVerifier.update(Unknown Source)
     at java.util.jar.JarFile.initializeVerifier(Unknown Source)
     at java.util.jar.JarFile.getInputStream(Unknown Source)
     at com.sun.javaws.security.SigningInfo.checkSigning(Unknown Source)
     at com.sun.javaws.cache.DownloadProtocol$RetrieveAction.actionDownload(Unknown Source)
     at com.sun.javaws.cache.DownloadProtocol.doDownload(Unknown Source)
     at com.sun.javaws.cache.DownloadProtocol.getResource(Unknown Source)
     at com.sun.javaws.LaunchDownload.downloadJarFiles(Unknown Source)
     at com.sun.javaws.LaunchDownload.downloadEagerorAll(Unknown Source)
     at com.sun.javaws.Launcher.downloadResources(Unknown Source)
     at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
     at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
JNLPException[category: Download Error : Exception: java.lang.SecurityException: cannot verify signature block file META-INF/ABC : LaunchDesc: null ]
     at com.sun.javaws.security.SigningInfo.checkSigning(Unknown Source)
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     at com.sun.javaws.cache.DownloadProtocol.doDownload(Unknown Source)
     at com.sun.javaws.cache.DownloadProtocol.getResource(Unknown Source)
     at com.sun.javaws.LaunchDownload.downloadJarFiles(Unknown Source)
     at com.sun.javaws.LaunchDownload.downloadEagerorAll(Unknown Source)
     at com.sun.javaws.Launcher.downloadResources(Unknown Source)
     at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
     at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.run(Unknown Source)
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Now the download went fine. Otherthan restarting the server, no other changes were made.
What could be the possible reason? Updating the JNLP file while server is running is a problem?
I tried this to recreate this scenario several times.
On certain occasions, I came across above exception along with another exception:
com.sun.deploy.net.JARSigningException: Could not verify signing in resource: (http://abc.xyz.com:5967/XXX/JARS/ThirdPartyJars/abc.jar, 8.0)
at com.sun.deploy.cache.CacheEntry.writeManifest(Unknown Source)
at com.sun.deploy.cache.CacheEntry.access$1800(Unknown Source)
at com.sun.deploy.cache.CacheEntry$9.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.cache.CacheEntry.writeFileToDisk(Unknown Source)
at com.sun.deploy.cache.Cache.downloadResourceToTempFile(Unknown Source)
at com.sun.deploy.cache.Cache.downloadResourceToCache(Unknown Source)
at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.javaws.LaunchDownload.downloadJarFiles(Unknown Source)
at com.sun.javaws.LaunchDownload.downloadEagerorAll(Unknown Source)
at com.sun.javaws.Launcher.downloadResources(Unknown Source)
at com.sun.javaws.Launcher.prepareLaunchFile(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)Everytime, after restarting the cache server, update download went fine.
Does anyone come across such thing?
Please Help me out.
Thanks in Advance..

I have JRE 1.5.0_14 in the client machine.
Once this exception comes, no matter how many times I tried to relaunch the application same exception (cannot verify signature block is shown. Once i restart the server, its working fine.
Regarding jardiff, Yes. we use it.
Also, this exception is not shown on every machine which are trying to download same update. Only on few..
Any idea regarding this, please share it.
Chakri
Edited by: chakriv on Mar 22, 2010 9:02 PM

Java.io.IOException: cannot verify signature block file META-INF/MYKEY

Hello,
i have a serios problem in my company.
I developed javaws aplication running since years and now we have starting problems with actual java, it brings security warnings. This warning says this application will be blocked in further releases.
The app is signed with an old java 6 jarsigner. If I sign the jar files of the app with java 7 u45 or u40, I receive the following exception by webstart :
java.io.IOException: cannot verify signature block file META-INF/MYKEY
    at com.sun.deploy.cache.CacheEntry$10.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.deploy.cache.CacheEntry.writeFileToDisk(Unknown Source)
    at com.sun.deploy.cache.CacheEntry.writeFileToDisk(Unknown Source)
    at com.sun.deploy.cache.Cache.downloadResourceToTempFile(Unknown Source)
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    at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
    at com.sun.deploy.net.DownloadEngine.downloadResource(Unknown Source)
    at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
    at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
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    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
do somebody have an idea what I could try to do to solve this problem?
I create the keystore on the follwoing way: C:\Programme\Java\jdk1.7.0_45\bin>keytool -genkey -keyalg RSA -alias MYKEY -keystore fspKeys -storepass xxxxxxxx

I have JRE 1.5.0_14 in the client machine.
Once this exception comes, no matter how many times I tried to relaunch the application same exception (cannot verify signature block is shown. Once i restart the server, its working fine.
Regarding jardiff, Yes. we use it.
Also, this exception is not shown on every machine which are trying to download same update. Only on few..
Any idea regarding this, please share it.
Chakri
Edited by: chakriv on Mar 22, 2010 9:02 PM

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I have added my sip address into my outlook signature block. Why does an inactive contact conversation opens, if I click on the link in the signature? It looks, like my profile in Lync, with the same picture and name, but the presence cannot be recognized,
thus a Lync message cannot be sent.

Hi,
Which Lync 2010 command-line parameter did you added in the signature block?
If you want to open the IM conversation windows of you when others clicking the signature, you can use the following command-line parameter:
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Sips:[email protected]
Im:<sip:[email protected]>
More details:
https://technet.microsoft.com/en-us/library/gg398376(v=ocs.14).aspx
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Best Regards,
Eason Huang
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]
Eason Huang
TechNet Community Support

Remove mandatory signature block/e-mail

I am preparing a contract for use with echosign text tags and i am experiencing the following problem.
I am able to add the individual text tags contained in the default signature block but i am still forced to add the default signature block to my contract when incorporated into Echosign.
Here are the text tags in question
{{Sig_es_:signer2:signature}}
(Signature)
{{N_es_:signer2:fullname}}
{{*Ttl_es_:signer2:title}}
{{*Em_es_:signer2:email}}
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Hi,
This could mean you are probably still missing a required field or there’s a condition on a required field. If there’s a condition, the system is not going to recognize it as required, and place a signature block.
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You can try this extension to override compatibility issues,
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* http://releases.mozilla.org/pub/mozilla.org/firefox/releases/latest-4.0/win32/en-US/
* [[installing firefox]]

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By any chance can we release the sales order from credit block using VA02 instead of VKM3?
I could see an example wherein the change log shows that the Overall Credit Status has been changed to Approved using VA02.
Could you please assist me with all the available methods of releasing the sales order from credit block.
KR,
Tawsif Chogle

Hi Tawsif,
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Digital signatures for use in consenting research participants

Hi. I need some help implementing digital signatures into a consent document. I work as a research assistant at a university and in our line of research, we have participants from multiple regions of the country. One of the most important parts of staying in compliance with various regulations is that all research participants are presented with information about the study, and they must sign a document to indicate that they understand the risks/benefits involved.
We want to implement digital signatures to make this process easier for ourselves and the research participants who live across the country. However, there seem to be some technical hurdles in using signatures. First, we want to make sure that participants who only have Adobe Reader are also able to sign (my understanding is that they should be able to). Some participants may not be very computer savvy, so we need the process to be somewhat dummy-proof. Participants must fill in their printed name and date, so I need for them to have authority to change some information, but I don't want them to have the authority to change the document itself or the participant ID numbers which I have to fill in once I get the form back.
I have created a fillable form in Adobe LiveCycle and added 2 signature form fields, one for the participant, and one for myself. I plan on distributing the form so that I can have a dataset file for all of the returned consents.
Essentially the process should work like this:
I send a participant the form, they fill out the fields for their printed name, date, and provide their digital signature and use the submit by email button to return the form to me.
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Save the file in our dataset file which is associated with the returned consent forms.
The thing I'm concerned about is their digital signature being invalidated once I insert the ID numbers and add my own digital signature.
Thanks for any help you could provide.

We have a document that needs to be signed by more than one individual -- and in our process we are using the Topacz signature pad to get the signature. It's similar to the one you sign at the grocery store, drug store, etc. In order to NOT have the first signature invalidated, we were told to edit the registry...and it works perfectly!
[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\8.0\AVAlert\cCheckbox]
"iDigSigSaveAsCertified"=dword:00000001
[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\8.0\AVAlert\cCheckbox\cAnnots]
"iReaderEnableSaveWarn"=dword:00000001
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Payment Block using Transaction Code MIRO

Hi Expert,
Just want to seek your help regarding my issue in Payment block using tcode MIRO. When I enter an Incoming Invoice and post the Purchase Order thru "SIMULATE" button the payment block appeared is block "R" but when I post it directly ("SAVE" button) payment block appeared is block "D" which is the correct one. I've already change the user-exit in the program used but I end up to affect the other payment block. Can you please help me on this issue? Your help is very much appreaciated.
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Anna

Hi Nabheet,
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          IF l_block_set IS INITIAL.                        "LRD080701
            p_t_drseg-spgrq = 'X'.                          "DMO021302
            MODIFY p_t_drseg TRANSPORTING spgrq. "LRD080701 "DMO021302
          p_rbkpv-zlspr = 'A'.                            "JJK080602
            p_rbkpv-zlspr = 'D'.                            "JJK080602
            READ TABLE xaccit INDEX 1.                      "LRD022305
          IF xaccit-zlspr IS INITIAL.        "LRD022305   "MTS051905
            xaccit-zlspr = p_rbkpv-zlspr.                   "LRD022305
            MODIFY xaccit INDEX 1.                          "LRD022305
          ENDIF.                                          "MTS051905
          ENDIF.                                            "LRD080701
Thanks so much for your response.
Regards,
-Anna

Append signature block using signtool

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