Signature and keytool problem ?

Hello,
It is possible to use KeyPairGenerator to generate Public Key and Private Key for signature and verify the signature.
But how can I use keytool.exe(that deployed with JDK) to generate key pair for signature and verify signature in Java program?
Would you please to show me a simple program to do that?
And please show me the step in using keytoo.
I just know how to use keytool to genkey and export cert.
Best regards,
Eric

Hello ,
I saw in the java card forum that you were asking about accessing a smart card through the internet....I have the same problem with my work.I want to have a webpage(eg the webpage of an e-shop) to access the smart card on a remote pc (the byer's pc) and get some data(eg the byer's shipping address)...can you please help me on how this could be done?thanks a lot

Similar Messages

Can't use signature,and other problems

Though I've created 2 signatures in Mail Preferences, neither one is shown when I send an e-mail. In the Signatures window in Mail Preferences the "Select Signature" portion in the dialog box is not active and "None" shows in the drop down menu bar.
There's apparently no way to empty the trash. I've searched through the all of the Preferences headings and found nothing about selecting when trash is to be emptied. In my old version of Mail, using the keyboard shortcut "Command+K" emptied the trash. In this new version, Mail 4.0.1, that's not an option.

In the Signatures window in Mail Preferences the "Select Signature" portion in the dialog box is not active and "None" shows in the drop down menu bar.
In the Signature box, select your email account you are using and then select "Choose Signature."
!http://img.skitch.com/20100904-8i4gwi67y2jkcge23fkuadwuyx.jpg!
There's apparently no way to empty the trash. I've searched through the all of the Preferences headings and found nothing about selecting when trash is to be emptied.
Click on "trash."
!http://img.skitch.com/20100904-jfjk13dtjbdpmdj3byfa5fst71.jpg!

Itunes not workin and the problem displays - m signature:   Problem Event Name:     BEX   Application Name:     iTunes.exe   Application Version:     10.5.3.3   Application Timestamp:     4f14cc3d   Fault Module Name:     QuickTime.qts_unloaded   Fault Mo

i tunes not working and the problem its displaying is
m signature:
Problem Event Name:    BEX
Application Name:    iTunes.exe
Application Version:    10.5.3.3
Application Timestamp:    4f14cc3d
Fault Module Name:    QuickTime.qts_unloaded
Fault Module Version:    0.0.0.0
Fault Module Timestamp:    4cf45322
Exception Offset:    706e1040
Exception Code:    c0000005
Exception Data:    00000008
OS Version:    6.1.7601.2.1.0.256.1
Locale ID:    1033
Additional Information 1:    0a9e
Additional Information 2:    0a9e372d3b4ad19135b953a78882e789
Additional Information 3:    0a9e
Additional Information 4:    0a9e372d3b4ad19135b953a78882e789
Read our privacy statement online:
http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409
If the online privacy statement is not available, please read our privacy statement offline:
C:\Windows\system32\en-US\erofflps.txt
please help.

im having this problem to ive uninstalled and installed but this still comes up!!
Problem signature:
Problem Event Name:    BEX
Application Name:    iTunes.exe
Application Version:    10.7.0.21
Application Timestamp:    504d85d9
Fault Module Name:    StackHash_0a9e
Fault Module Version:    0.0.0.0
Fault Module Timestamp:    00000000
Exception Offset:    00000000
Exception Code:    c0000005
Exception Data:    00000008
OS Version:    6.1.7601.2.1.0.768.3
Locale ID:    5129
Additional Information 1:    0a9e
Additional Information 2:    0a9e372d3b4ad19135b953a78882e789
Additional Information 3:    0a9e
Additional Information 4:    0a9e372d3b4ad19135b953a78882e789

Download problems digital signature and unknown publisher

I have tried to download adobe reader and it goes halfway then stops and comes up with ( digital signature and unknown publisher ). I am running windows vista with an adminastrator account.
All help would be appreciated

Satellite M305-S4910
I don't believe that model has a recovery partition. If you didn't burn the recovery discs, then you should order them.
Order Toshiba Recovery Media
-Jerry

Photoshop CC extension with invalid signature and Photoshop default installed extensions cannot be loaded

I have a Creative Cloud subscription for Photoshop CC. All Creative Clouds products are updated to the latest versions. When I tried to install Tony Kuyper's TKActionv3 Photoshop extension using the Adobe Extension Manager CC on my PC desktop, I received an error message the extension contained an invalid signature and wouldn't be installed. I had previously installed the extension on my laptop without any problems. At the same time, I also noticed the default installed Photoshop CC extensions (e.g., Adobe Exchange, Kuler, Mini Bridge, Behance) could not be loaded using the Windows/Extension command. I receive an error message that the command could not be completed because the extension could not be loaded. After contacting Tony Kuyper, he suggested that I try the steps mentioned in the following weblink: https://forums.adobe.com/message/6029768. The steps basically consist of uninstalling and reinstalling all the Creative Cloud apps associated with Photoshop CC. I tried the steps multiple times, but I am still having the same problems. I can find the default installed Photoshop CC extensions on my machine, so I don't know why they can't be loaded.
I posted this question in the Extension Manager group. Should I also post it in the Adobe Photoshop group?
Thanks for your assistance,
Mark Curtis

Zhihong,
I received your e-mail with the questions below. I answered some of your questions: answers in red and underlined. In addition to posting in the forum, I also replied to your e-mail address, but the message was returned as undeliverable. What e-mail address should I use for sending you the log files.
Thanks,
Mark
Hi Mark,
Here is a workaround to make the extension display again:
You can bypass the check for extension signature by editing the CSXS preference properties file, located at:
• Win: regedit > HKEY_CURRENT_USER/Software/Adobe/CSXS.5
• Mac: /Users/<username>/Library/Preferences/com.adobe.CSXS.5.plist
Add a new entry “PlayerDebugMode” of type "string" with the value of "1". And then restart Photoshop and try again. Please let us know if this work around can work.
And could you please help to offer following information for us to find the root cause? Thanks:
1. Which PS version are you using? On what platform, Windows or Mac OS? Photoshop CC (64-Bit) 14.2.1 x64, Windows 7 Ultimate (64-Bit)
2. The extension cannot be loaded since when? 5/25/2014
3. What is the version of imslib.dll/.framework and PlugPlugOwl.dll/.framework? It locates at path like “C:\Program Files\Adobe\Adobe Photoshop CC (64 Bit)”. 7.0.0.145, 4.2.0.36
4. Can you get the CSXS log and send it to us? Please add a “LogLevel” key with value “6” in registry (PS should be restarted for the log level change to take effect):
• Win: regedit > HKEY_CURRENT_USER/Software/Adobe/CSXS.5
• Mac: /Users/USERNAME/Library/Preferences/com.adobe.CSXS.5.plist
Then restart PS and the log file will be generated at:
• Win: C:\Users\USERNAME\AppData\Local\Temp\csxs5-PHSP.log
• Mac: /Users/USERNAME/Library/Logs/CSXS/csxs5-PHSP.log
Thanks!

Hello friends, my itunes has stopped working. and the problem report stated the following: Fault Module Name:     KERNELBASE.dll   Fault Module Version:     6.1.7601.17514.................. please can anybody help me?hello friends, my itunes has stopped w

Hello everybody> my itunes has stopped working and the problem report stated the following:
Problem signature:
Problem Event Name:    APPCRASH
Application Name:    iTunes.exe
Application Version:    10.5.3.3
Application Timestamp:    4f14cc3d
Fault Module Name:    KERNELBASE.dll
Fault Module Version:    6.1.7601.17514
Fault Module Timestamp:    4ce7b8f0
Exception Code:    80000003
Exception Offset:    0003381b
OS Version:    6.1.7601.2.1.0.256.1
Locale ID:    1033
Additional Information 1:    0a9e
Additional Information 2:    0a9e372d3b4ad19135b953a78882e789
Additional Information 3:    0a9e
Additional Information 4:    0a9e372d3b4ad19135b953a78882e789
can anybody help me?

Are you seeing a similar message when launching QuickTime Player?
What security software is installed on the computer? Have you tried testing in an admin account or after uninstalling tthe security software?
Use one of the following articles to guide you through removing iTunes and the related QuickTime files.
Removing and Reinstalling iTunes, QuickTime, and other software components for Windows XP
Removing and reinstalling iTunes, QuickTime, and other software components for Windows Vista or Windows 7

When I try to update to Itunes 11 I get an error message saying that Itunes has an invalid signature and wont be installed. I use Windows 7.

Everytime I try to update to Itunes 11 I get an error message saying that Itunes has an invalid signature and can't be installed? I have tried to install it two times and get the same message each time. Any solutions to my problem?? Those who have installed ITUNES 11 is it hard to work with? maybe im lucky it wont update?? I don't know.

That suggests that the installer is getting damaged during the download.
I'd first try downloading an installer from the Apple website using a different web browser:
http://www.apple.com/itunes/download/
If you use Firefox instead of IE for the download (or vice versa), do you get a working installer?

Digital signatures and combining PDFs in Acrobat X

I hope that one of you Acrobat gurus can help me out with one or more of these questions:
Is it possible to maintain digital signatures when inserting signed PDFs into another PDF?
Is it possible to remove a digital signature after a signature has been deleted from the page?
Is it possible to change the format of the date and time on a digital signature?

In the simplest sense a digital signature is a special checksum of all the bytes in the bytes in the PDF combined with all the bytes in the digital signature. If the document is changed in any way the checksum changes, so the signature becomes invalid. A valid signature ensures that the document hasn't changed since the signature was applied. That stuff that's shown on the signature field is irrelevant. It's just a pretty picture. The real stuff is going on inside the PDF where you can't see it.
Obviously it gets a lot more complext then this. The signature can be selectively applied so that the certain types of changes are allowed. A signature does not add real protection to a PDF, but Acrobat plays along with this scheme by trying to not allow changes that would invalidate the signature, and logging all modifications to the PDF.
1) There are ways to maintain the visual appearance of the signature on the page. If the permissions have been set to allow it the PDF can be flattened, which also partially removes much of the stuff that's going on internally. But this isn't always possible. I had to solve this problem once for a client, so I wrote a plug-in that strips the signature permissions from the PDF (I'll post this to www.pdfscripting.com sometime soon), after which the the PDF can be flattened, keeping the appearance. But of course, after this point the document has to be considered invalid. For example, if the document was a contract, the flattened version would be good for use in an analysis of say all contracts for a particular year, or for copying legal language to another contract, but it couldn't be used as the basis of a legal dispute.
2) I don't understand this one. Do you mean you're deleting the signature field and some of the internal digital signature stuff is still hanging around causing problems? If you own the signature (or the permissions allow), then a standard form reset will "Un-Sign" the PDF. Inserting PDF pages into another PDF will strip out all this info as well.
3) The stamp appearance is set at the time the stamp is applied, it cannot be changed after this point. It's a lot like a PDF stamp.
Thom Parker
The source for PDF Scripting Info
pdfscripting.com
The Acrobat JavaScript Reference, Use it Early and Often
http://www.adobe.com/devnet/acrobat/javascript.html
Then most important JavaScript Development tool in Acrobat
The Console Window (Video tutorial)
The Console Window(article)

Digital signatures and view document througt URL

Hello together,
We use status document and digital signatures workflow and we canu2019t use URL link to documents which have been approved. In browseru2019s window I see digital signatures information and error :u201DHTTP 404 the web page cannot be foundu201D.
In transaction SOLAR01, SOLAR02 when, I display approved document, at first I see the windows with digital signatures information and then, after push enter - required document.
If document in status u201Cin progressu201D we donu2019t have problem.
Could you help me to resolve this problem or disable windows with signatures information?

Hello Francesco,
I want to generate a digital signature (PKCS#7,XML) using SAP SSF API as explained in
http://help.sap.com/saphelp_nw04/helpdata/en/4f/65c3b32107964996a56e4165077e24/content.htm and in Amol Joshi's reply in
Digital Signatures and Document Encryption api
so my question is From which PI/XI version and its SPS this SAP SSF LIBRARY is supported ?
Kind Regards,
Kubra fatima.

Digital signatures and wet ink signatures

HI all,
I am in the process of converting our paper checklists into fillable pdf forms. Everything is working well, but Im trying to get my head around digital signatures.
Ideally I just want to click the signature part, choose a user from a list, enter the password and the 'wet ink' signature that is scanned in gets added to the form.
So on my laptop I setup a new appearance for my signature, scanned my signature and added it to my digital signature. Perfect.
Problem is, I want to be able to use this on other computers. I copied the digital signature .pfx file and imported it on that new computer, which worked, but it drops the 'wet ink' signature and appearance.
It also appears that anyone can create a digital ID on my laptop and choose my wet ink signature appearance, and sign the document which makes it appear as if I have signed it. I was hoping the wet ink signature was locked with the digital signature but it appears this isnt the case.
Im trying to find the best way to store our signatures (we are all on a network), so that any user can use any computer and ideally lock the wet ink signature to the digital signature.
Many thanks
Chris

It doesn't work for everyone, but if you are considering moving to the world of digital signatures, it's best to forget the signature appearance ("wet"). This is just a distraction to the actual signature, and it encourages a deeply flawed workflow: one where people look at the picture on the page rather than learning about digital signatures and how to verify them. Since digital signatures are (if done properly) unfakeable and (in some places) legally recognised, it is best to completely change workflow, rather than trying to give the illusion it is just an electronic version of a paper workflow.

Digital Signatures and Encryption in Yosemite Mail

After upgrading to Yosemite, I am having difficulty using the Mac Mail app to send digitally signed and encrypted email.
Before the upgrade to Yosemite, I was able to send signed and encrypted emails using certificate/keys in my keychain using both the Mac Mail app and Microsoft Outlook 2011 for Mac.
After upgrading, I am still able to send signed and encrypted message in Outlook, but the Mac Mail app gives the following error when I attempt to send a signed email:
'You don’t have a trusted certificate in your keychain that matches the email address “XXXX@XXXX”. Without a certificate, you can’t sign messages sent from this address.' (Actual name replaced)
When I look at my certificates in my keychain, a certificate is available with "Usage: Digital Signature" that has the email address from the error message "XXXX@XXXX" with exact case in the RFC 822 Name.
Another interesting piece of data that might help track this down is that when I first launch the Mac Mail application, the Mac Mail application is able to successfully decrypt emails that have been previously sent encrypted to me. HOWEVER, after I attempt to send an email and get the "You don’t have a trusted certificate..." error message, these emails are no longer able to be decrypted. I get the "Unable to decrypt message" header above the message and the content of the message is just a "smime.p7m". If I close the mail application and restart it, these encrypted message are once again decrypt-able until I attempt to send a message.
It almost seems like things are working until mail tries to access the keychain.
I have attempted to delete my certificate and keys from my keychain and then adding those items again.
I have attempted to close the mail application and reopen it.
I have attempted to reboot my computer.

1. I want to confirm that this is still an issue for me in 10.10.1 and mail Version 8.1 (1993)
2. I have another data point.
At my office I have wired networking and wireless networking available. Primarily I utilize the wired networking for access to network drives, etc.
When using the wired networking, I experience all the problems that have been catalogued in this thread. Can't sign, can't encrypt, can't close the compose window after the mail program fails to find my certificate.
However, when I switch to wireless networking before starting the mail application, digital signatures and encryption seem to work! This is pretty weird behavior. Make sure to restart mail if you were previously wired.
Here are some theories:
Something to do with OCSP? When I am wired vs wireless I am on different ip subnets and subject to different firewall rule sets. Perhaps OCSP is trying to determine the status of the certificate and failing?
Here are some things I have tested:
I switched to a different official apple brand thunderbolt to ethernet adapter with no change in behavior
I disabled wireless and disconnected my wired network. So no network access at all. Signatures and encryption work! The message obviously does not send, but it appears in my outbox and I don't get the signature error. When I reconnect my wired cable, the message sends successfully and appears as encrypted in my sent folder!
I have attempted to disable OCSP by using "Keychain Access --> Preferences --> Certificates Tab --> OCSP (OFF) and CRL (OFF)" but this hasn't made a difference in the behavior of wired networking.
Ran a TCPDUMP on traffic to the OCSP service but didn't see any traffic when I attempted to send a message and received the signature error
I am pretty stumped on this. This is very odd behavior
Does anyone else experience this behavior?

PKI- Digital signature and doc cypher

Hello everybody, I have a problem and I need help please. This is my situation:
I would like to cypher a world document and add a digital signature. I want to use certificates to do so. That is why I have developed a PKi in order to get certificates to use digital signature and ASYMMETRIC encryption. I have to add that I am trying to assure
non repudiation, integrity and confidentiality of word documents.
Is there any way to do it? if so, how can i do it and what software application do you recommend? thanks!

As Elke explains and shows via that link, that informs you how to digitally sign a document. However a digital signature only provides non-repudiation and integrity of a document, not confidentiality. Symmetric Encryption is needed for that.
You would not use Asymmetric encryption to bulk encrypt files, it would be too slow.
Unfortunately there is no easy way to symmetrically encrypt files with the tools available in modern Windows distributions. Personally I would digitally sign the document, then use a tool like 7-Zip
to encrypt them with AES-256 and a passphrase, or to go one better than that use Symantec Encryption Desktop. Using the latter allows you to do encrypt either with a passphrase, or with
your targets PGP public key (that does of course assume they are also using PGP) so that only they can decrypt it with their private half.
Also signing an Office document (or PDF for that matter) with an internal PKI certificate is only valuable if the documents are internally distributed within the same organisation, or when the other organisation(s) trust your root CA certificate, otherwise
they will not be able to verify the signature (think of it like the error in your browser with the red X stating there is a problem with your certificate).
I'm not quite sure what your use case is, but if it's just for distributing internal documents then no problem. Otherwise you'll have to get a document signing certificate from a vendor like
GlobalSign who have a trusted root certificate which ships with most operating systems so that anyone who receives the document can verify it.
D

Signatures and Mail

I used to be able to pick and choose various signatures from a drop down menu for each sending account. This has now gone. There is a procedure to bring signatures back under the Customiseoption but a) this only works in each message sent, and 2) the drop down does not work, even thought there are several different signatures defined.
Any fixes found?

Deborah,
I was having the same problem, but after a bit of playing around I think I have it sorted.
In Mail go to your Preferences. Click on the Signature Panel. There is a drop down menu located in bottom quarter of the Signature preferences window that says *Choose Signature*. I've a feeling it defaults to None so you need to set it yourself.
Select the mail account that you want a sig to appear on, and then choose the appropriate sig text.
If you have more than one sig text applied to an account you will have the option to select "At Random" or "In Sequence" also.
I think what you are experiencing is because at the moment you have None (the default) set in *Choose Signature* and therefore you are having to select a sig text each time you compose a mail.
Hope this helps.

When trying to install update 10.5 it says the download has invalid signature and won't install. I run XP

when trying to install update 10.5 it says the download has invalid signature and won't install. I run XP

I'm having similar problems with 10.5. I managed to install it but when I try to run itunes it doesn't open correctly and when I view my account the screen is not presented in the correct format. When I try to search for music it finds nothing. So I ran the diagnostics option but this came back with an error ' secure link to itunes failed'. It also said that the internet connection was verified but when I went into the help option it said I wasn't connected to the internet but as you can see I was and am. I've now uninstalled and reinstalled 3 times, each time I uninstall I've followed the correct sequence as recommended:-
1. Itunes
2. Quicktime
3. Apple software update
4. Apple mobile device support
5. Bonjour
6. Apple application support
I've noticed now that 'quicktime' didn't get reinstalled, not sure if that's the problem. Also when I rebooted after the last Uninstall I received a new error message ' Applesyncnotifier.exe - unable to locate component'. I've also noticed that my CPU is running at 50% according to task manager when I've got apple loaded, but it goes down to less than 20% when it's uninstalled and even goes down to 0%. Clearly, there are a number of people with similar issues and Apple need to sort it quickly.

K8N Neo4 Plat, SATA2 and Shutdown Problem...

Hi, new here.
Glad to have a board like this to ask some questions to other users.
Purchased the board a few months ago, and apart from the noisy NB fan, all was ok.
Then recently bought a 200GB SATA2 drive (see specs in signature).
Since its installation, but not before, I've had a systematic shutdown and reboot problem: the shutdown proceeds as usual, the "Windows is shutting down" and "Saving preferences" dialogs come and then disapear... but then only the mouse cursor is left on blank screen (it can even be moved), and the shutdown process doesn't go further; after several minutes I just shut it down with the power button.
The event logs don't show anything problematic.
A few more details:
My drivers are the most recent (official) from MSI.
I've installed Win2000 in ACPI Uniprocessor PC Mode.
The drive is recognized as a sata2 device.
I use the SATA#1 (nVidia) port.
I've put the pagefile on that drive.
Nothing is overclocked, CoreCenter is disabled.
I've installed the UPH Clean tool from Microsoft, but that didn't help.
Memory passed lengthy memtest session.
Strangely, the SATA2 drive appears in the "Unplug or Eject Hardware" list in the tray, usually reserved for connectable devices (USB, etc): is that normal? (I'm new to sata drives)
I've searched this board for similar problems, but they seemed to be mostly in RAID context, which isn't the case for my system.
Any idea what might be the problem ? Anyone experienced the same problem (non-RAID) ?
Apart from above problem, drive seems to function normally.
Thanks in advance.

@gerasimatos: maybe he used xsetup? didn't try it yet, will have a look. In the BIOS, all RAID-related settings are disabled.
@kakarocht: the power managment in the BIOS has the default settings.
Will try to change a few params here and there.
I have not tried yet other ports on nVidia controllers.
I may eventually try the Sil ports, in last resorts, BUT I would prefer to solve this issue with nVidia ports first (I think at the price we pay these things we shouldn't be precluded from half the SATA ports! )
I tried to list as much relevant specs as I could in the signature and post. Here are others:
memory used at 2.5-3-3-7 1T setting (memtest passed)
regular ps/2 keyboard
ms intellimouse (using ps/2 connection)
the asus graphic card used in single monitor mode (recent drivers)
when I said "CoreCenter" disabled above, meant "Cool'n'Quiet" disabled (not stressing system yet, so 'cool' isn't an issue; as for quiet, if the board can't lower the NB fan speed, it's a non-issue!!!)
using on-board sound-card
using onboard gigabit port for internet connection
no other peripherals installed presently
hard drives temps stay under 40 C (not stressing system lately)
I removed DigiCell and CoreCenter from loading at startup (don't need them for now)
closing firewall (zonelalarm) before shutdown didn't help (although didn't try unloading the service yet)
... what else might be of help to list?...
Again, I'd like to know if it's normal that a SATA2 hd drive appear in the "Unplug and Eject Hardware" tray icon list; I wasn't expecting that, but I'm new to this kind of connection.

Signature and keytool problem ?

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