Acrobat 8 Standard Digital Signature Problems

Running Acrobat 8 Standard under Windows Vista Ultimate, both fully updated. Acrobat works fine BUT I cannot certify or sign docs because I always get the following error message:
Creation of this signature could not be completed.
Certificate parsing error:
Error encountered while BER decoding:
regardless of what Digital ID I use (Windows or Adobe), as if Adobe was unable to access the digital ID files...

Guccio,
This discussion forum is specific for e-licensing and ALM related issues. Please use the Acrobat for Windows forum for your question (forum URL: http://www.adobeforums.com/cgi-bin/webx/.ee6b2f2/)

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Acrobat 11 Standard digital signature box hangs for 60 seconds on first run

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Is this Windows or Mac, which OS version? Which Acrobat XI version (including minor)? Does this happen after each reboot (you said that already but, please, confirm? Does this happen if before signing the first time after reboot you open an already signed PDF? Does opening of a signed PDF after a reboot before you try to sign happens in acceptable time or is also slow?

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Digital Signature problem : Adobe forms

Hi Experts,
I am facing one issue in Adobe forms while implementing Digital Signature in one of the Custom Adobe form. I am following some steps as mentioned in the below link
<link to blocked site removed by moderator>
The problem is when I execute my Adobe form I am not getting SIGN button in my generated form as mentioned in the link.
I am using Adobe Live cycle designer 8.2 and Adobe reader 9.
Please help me out on this since I am new to Adobe forms as well.
Thanks
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Moderator message: this is the wrong forum, please have a look in the forum for "SAP Interactive Forms by Adobe".
Edited by: Thomas Zloch on Oct 21, 2011 1:56 PM

Apart from the above question can anybody guide me whether do we need Adobe Acrobat instead of Adobe reader to implement Digital Signature in Adobe form.
Looking forward towards some useful suggestions!!
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Acrobat X Pro - Digital Signatures

Good Morning!
I am trying to add a digital signature field in Adobe Pro X. It seems fine when I'm doing the editing and preview, but when I save as .pdf, the form doesn't allow it to be signed. If I click on the form in that field nothing happens.
Does anyone know what I'm missing?
Thanks!
Brian

My apologies for my miscommunication, and thank you for your patience. Do you think it has anything to do with the fact that I created it from MS Word? Let me start from the beginning on what I did, because I might be breaking something:
I created a "memo" in MS Word.
Using Acrobat Pro X, I chose "create form" so I could add a digital signature field as well as a text field.
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Hello,
I created a pdf document including digital signature field in livecycle. When saving and opening the document in acrobat 8 pro signing works fine, i.e. I click the signing field and it prompts for digital signature ID & password.
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Hi Gatis,
Check out the Security and Digital Signature Admin Guide athttp://learn.adobe.com/wiki/download/attachments/52658564/acrobat_reader_security_9x.pdf?v ersion=1
http://learn.adobe.com/wiki/download/attachments/52658564/acrobat_reader_security_9x.pdf?v ersion=1
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When you type in the file path and name in the Edit Binary Value dialog in regedit, make sure you null terminate the string by typing a zero at the end of the hex data on the left side of the dialog. It will look like a dot on the right side, but it's not really a dot (a dot is 2E in hex).
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Use the SAPGENPSE tool to import the file in PCKS#12 format using the command import_p12 as follows:
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56789 CSD_01.p12
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C:\SAPGENPSE\ntintel>
I would appreciate any help.

Hi
I solved my Issue. SAPGENPSE failed with only import_p12 error.
I had misspelt , fat fingers.
In AIX I ran     env
Check to see    SECUDIR=/usr/sap/SID/DVEMBS03/sec
I had a spelling mistake and saw the wrong entry.
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setenv SECURDIR /usr/sap/FSB/DVEMBS03/sec     Insert your right SID of course.
Also just run     sapgenpse and it will tell you if you have set the environment correctly..
Worked like a charm, certificate created.

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In my group, some associates have Adobe Professoinal 8.1.3 (me included) and others have 8.2.3. I am having people digitally sign documents using their PKI token given to us by the company. When digitally signing, I am still able to write in my own reason in the reason drop-down, but the users with 8.2.3 are unable to do so. Ultimately, I have 2 questions:
1) How can I enable those users of 8.2.3 to write in their own reasons?
2) How can I clean up that drop-down list and delete reasons that I don't use at all or stopped using?
Thanks.

Hi,
Here is how to enable the Reason field to show on the Sign dialog:
Select the Edit > Preferences menu item (Windows), or the Acrobat > Preferences menu item (Mac)
Select Security from the Categories list box
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Click the OK button on the Digital Signatures Advanced Preferences dialog
Click the OK button on the Preferences dialog
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Steve

Acrobat 8 Standard PDF View problem

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2011 email router digital signature problem

Hi,
We're running 2011 on premise with the email router feeding a queue for service items.
We've recently seen a number of emails that hit the mail box but don't ever get processed by the email router. There are no errors in the event logs that we can see, it just seems to ignore them.
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Hi,
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[email protected] (alias for above mailbox)
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MayankP
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How do I control the certificate chain construction performed by Acrobat Reader during digital signature validation?

I work in the federal government where there are many certificate authorities and cross certified certificate authorities. Acrobat Reader is building hundreds of certificate chains in attempting to find a trusted root for the signers certificate. It is taking 4 minutes to validate the signature!
The image is the 15th screen shot showing three chains per screen shot. The window elevator has barely moved!

I am now using Adobe Acrobat Reader 11. Signature validation is much better! Perhaps 10 seconds. The only issue I see that the detail pages have misleading messages. The Signature Properties window has no complaints about the signature but the Show Signer's Certificate page still complains about not valid trust anchor.

Digital signature problem

Here is my code . in this d value of 'v' shouls come equal to 'r' but its nt coming.please tell me what is the problem in this??
import java.io.*;
import java.nio.charset .*;
import java.util.Random;
import java.math.*;
//import java.acm.util.RandomGenerator;
class key
public static void main(String args[])
               String sm="I AM A SUDENT OF COMPUTER SCIENCE";
     //this is the starting of first module i.e. key generation
               try
                    String s11="13";
                    int a1=Integer.parseInt(s11);
                    double a=(double)a1;
                    byte[] q = new byte[20];
                    q=s11.getBytes("UTF8" );
                    System.out.println("Prime number q="+a1);
                    String s1="4";
                    int b=Integer.parseInt(s1);
                    double b1=(double)b;
                    System.out.println(b);
                    byte[]z= new byte[20];
                    z=s1.getBytes("UTF8" );
                    System.out.println("Random number z="+z);
                    byte[] p=new byte [256];
     int c=((a1*b)+1);
                    double c1=(double)c;
                    String s2=Double.toString(c);
                    p=s2.getBytes("UTF8");
     System.out.println("Prime number p="+c);
                    //java.util.Random generator = new java.util.Random(System.currentTimeMillis());
                    //public class RandomGenerator extends Random
                    //RandomGenerator rgen = RandomGenerator.getInstance();
                    //double h=rgen.nextDouble(0.0,c-1);
                    Random ra=new Random();
                    //double h=((c-1)*(ra.nextDouble()));
                    double h=35;
                    //double h=(Math.random()*(c-1));
                    //double h=ra.nextDouble(0.0,c-1);
                    //double h=(generator.nextDouble()*(c-1)); // 0.0 <= d < 1.0
                    System.out.println("The value of h="+h);
                    double g1=(Math.pow(h,b));
                    double d=(g1%c);
                    //String s3=Double.toString(d);
                    //byte[]g=new byte[20];
                    //g=s3.getBytes("UTF8");
                    System.out.println("The value of g="+d);
                    //public class RandomGenerator extends Random
                    //RandomGenerator rgen = RandomGenerator.getInstance();
                    // double x=rgen.nextDouble(0.0,a);
                    //double x=(Math.random()*(a));
                    //double x = (generator.nextDouble()*a); // 0.0 <= d < 1.0
                    //double x=ra.nextDouble(0.0,a);
                    //int x=(ra.nextInt(a1));
int x=2;
double x1=(double)x;
                    //double x1=(double)x;
                    //double x=8;
                    System.out.println("The value of x="+x);
                    String s4=Double.toString(x);
                    byte[]rno1=new byte[20];
                    rno1=s4.getBytes("UTF8");
                    System.out.println(rno1);
                    double y1=((Math.pow(d,x1))%c1);
                    System.out.println("The value of y="+y1);
                    String s5=Double.toString(y1);
                    byte[]y=new byte[20];
                    y=s5.getBytes("UTF8");
                    System.out.println(y);
                    System.out.println("THE VALUE OF PUBLIC KEY="+c+","+a+","+d+","+y1);
                    System.out.println("THE VALUE OF PRIVATE KEY="+x);
                    //This ends the process of key generation
                    //Now starts the next module of signing
                    //public class RandomGenerator extends Random
                    //RandomGenerator rgen = RandomGenerator.getInstance();
                    //double k= rgen.nextDouble(0.0, a);
                    //double k=(ra.nextDouble()*a);
                    //double k=(Math.random()*(a));
                    //double k =(generator.nextDouble()*a); // 0.0 <= d < 1.0
                    //double k=ra.nextDouble(0.0,c-1);//                    int k=(ra.nextInt(a1));
                    //double k1=(double)k;
int k=4;
double k1=(double)k;
                    //double k=11;
                    System.out.println("The value of k="+k);
                    String s6=Double.toString(k1);
                    byte[]n=new byte[20];
                    n=s6.getBytes("UTF8");
                    System.out.println("The value of nonce="+n);
                    double r1=(((Math.pow(d,k1))%c1)%a1);
                    System.out.println("The value of r="+r1);
                    String s7=Double.toString(r1);
                    byte[]r=new byte[20];
                    r=s7.getBytes("UTF8");
                    System.out.println("The value of r="+r1);
                    int h1 =10;
/* for (int i = 0; i < sm.length(); i++) {
h1= 31*h1 + sm.charAt(i);
                    System.out.println(h1);*/
                    double hash=(double)h1;
                    System.out.println("The value of hash code="+hash);
                    //double s12=(((hash/k1)+(x1*r1))%a1);
                    double a11=(hash+(x1*r1));
                    double s12=((a11/k1)%a1);
                    System.out.println("The value of s="+s12);
                    String s8=Double.toString(s12);
                    byte[]s=new byte[20];
                    s=s8.getBytes("UTF8");
                    System.out.println("The value of s="+s);
                    System.out.println("THE VALUE OF SIGNATURE= ("+r1+","+s12+" )");
                    //The process of signing is complete
                    //Now starts the process of verifying
                    double m=1/s12;
                    double w=(m%a1);
                    System.out.println("The value of w="+w);
                    double u1=((hash*w)%a1);
                    System.out.println("The value of u1="+u1);
                    double u2=((r1*w)%a1);
                    System.out.println("The value of u2="+u2);
                    double m1=(Math.pow(d,u1));
                    System.out.println(m1);
                    double m2=(Math.pow(y1,u2));
                    System.out.println(m2);
                    double v=(((m1*m2)%c1)%a1);
                    //double v=((((Math.pow(d,u1))*(Math.pow(y1,u2)))%a)%b);
                    System.out.println("The value of v="+v);
               catch(Exception e)
}

Do not use doubles or floats for arithmetic mod n, ever! Even for small examples, the BigInteger class is very easy to use. You'll be using the add, subtract, etc. methods, but also the mod, modPow, and modInverse methods. So, your code might start out looking like this:
java.math.BigInteger;
class Key
    public static void main (String [] args)
        String sm="I AM A SUDENT OF COMPUTER SCIENCE";
        BigInteger q = BigInteger.valueOf(13);
        System.out.println("Prime number q=" + q);
        // ...and so on...
}

XML Digital Signature Problem

I am using the javax.xml.crypto.dsig.XMLSignatureFactory to generate XML Signatures. Now when I try to validate the generated signature with java, the validation succeeds, however when I attempt the validation with .NET the validation fails.
Java adds a break line after the 76th character to produce separate lines. On the other hand .NET does not exhibit this behavior.
Please help...........
String inputXMLPath = "C:\\wessam\\GATS-CBE-20110404-0013.xml";
String outSignedPath = "C:\\efOut.xml";
XMLSignatureFactory factory =
XMLSignatureFactory.getInstance("DOM", (Provider)Class.forName("org.jcp.xml.dsig.internal.dom.XMLDSigRI").newInstance());
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
Document doc = dbf.newDocumentBuilder().parse(new File(inputXMLPath));
NodeList nl =
doc.getElementsByTagNameNS("http://cbe.gatsfile.efinance.com.eg",
"GATSFile");
Node node = nl.item(0);
XMLStructure content = new DOMStructure(node);
DigestMethod digestMethod =
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Reference reference = factory.newReference("#GATSFile", digestMethod);
SignedInfo signedInfo =
factory.newSignedInfo(factory.newCanonicalizationMethod(CanonicalizationMethod.EXCLUSIVE,
(C14NMethodParameterSpec)null),
factory.newSignatureMethod(SignatureMethod.RSA_SHA1,
null),
Collections.singletonList(reference));
KeyInfoFactory kif = factory.getKeyInfoFactory();
X509Data x509d =
kif.newX509Data(Collections.singletonList(getCertificate()));
KeyInfo keyInfo = kif.newKeyInfo(Collections.singletonList(x509d));
XMLObject obj =
factory.newXMLObject(Collections.singletonList(content),
"GATSFile", null, null);
DOMSignContext dsc = new DOMSignContext(getPrivateKey(), doc);
XMLSignature signature =
factory.newXMLSignature(signedInfo, keyInfo, Collections.singletonList(obj),
null, null);
signature.sign(dsc);
FileOutputStream fos = new FileOutputStream(outSignedPath);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer trans = tf.newTransformer();
trans.transform(new DOMSource(doc), new StreamResult(fos));
fos.close();
}

user13461536 wrote:
I am using the javax.xml.crypto.dsig.XMLSignatureFactory to generate XML Signatures. Now when I try to validate the generated signature with java, the validation succeeds, however when I attempt the validation with .NET the validation fails.
Java adds a break line after the 76th character to produce separate lines. On the other hand .NET does not exhibit this behavior.These line breaks should be properly normalized by a standards-compliant canonicalizer. However, if you are using JDK 7, try setting the following property which will eliminate the line breaks when you generate the signature:
java -Dcom.sun.org.apache.xml.internal.security.ignoreLineBreaks=true ...

Acrobat 8 Standard Digital Signature Problems

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