Smime verify signature and decrypt

how to do it ?:)
maybe you have any helpfull links ...
thx in advance

I think that you should combine:
http://www.bouncycastle.org, and JavaMail API Documentation.
Try.

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iTunes will not update. I get an error message saying that it cannot verify signature and it will be unable to install.

Yeah me too try going through the apple website in (firefox) and download iTunes there. Currently that's what I'm doing.

Creating and verifying signature and certification

Hi experts,
we are developing a PDF based supply chain process to collect some chemical data. Process description:
- Company creates an interactive form
- Company sends the form to the business partner
- Business partner fills out the form
- Business partner sends the form back
We create the PDF and process the received PDF in ABAP.
Now we have the following questions / problems:
- How to certify the PDF that will be sent out (without user interaction)
- How to sign the PDF based on the logged on user before send out (without user interaction)
- How to verify the signature of the business partner (if it is valid and it belongs to the business partner)
Could you please help us?
Thanks and have a great day.
Thomas

Hi Thomas & Experts,
I am also facing similar problem and while doing validation of the signature, the Reader prompts "IdentityUnverifiable" and the certificate is invalid. Any one kindly knows how to solve this problem ? The ADS has been configured with SSL connection on the server and the same certificate has been installed.
Appreciate them greatly.
Thanks~!
Regards,
Adrian

Verifying capicom and javascript signatures

Hi,
I need to verify digital signature created by iexplorer capicom or by firefox window.crypto.signText.
I already created java code that makes this using the sun.security.pkcs.PKCS7 class, but now i'need to validate a signature made with a certificate that only have the non-repudiation bit active (with my code i get the following exception "java.security.SignatureException: Key usage restricted: cannot be used for digital signatures") and the CA certificate have 4098 bits.
I'm using the java 142 and i'm trying to use the bouncycastle package to solve my problems, but i don't understand how can i do this.
Anyone already made this?
Thanks in advanced
rjc

I do not even sign locally. Once I have verified the correctness of the key I add something like this to the PKGBUILD:
validpgpkeys=('6645B0A8C7005E78DB1D7864F99FFE0FEAE999BD')
(obviously with the correct key fingerprint)

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

Verify signature

Hi All,
I have a requiremnet, in which the invoice document is coming along with a signature.
I have to verify the signature and extract the xml data from the inbound payload.
Please let me know how can i achieve this.
I am refering to the below link , but i am not able to achieve what is required.
http://help.sap.com/saphelp_47x200/helpdata/EN/a4/d0201854fb6a4cb9545892b49d4851/frameset.htm
Regards,
Bhanu.

Yes i am surely looking for a Java Mapping.
The link mentioned wont help because the inbound payload is somewhat like below
Content-Type: multipart/signed; micalg=SHA-1; protocol="application/x-pkcs7-signature";
boundary="----=_Part_1_5155489.1312903547841"
------=_Part_1_5155489.1312903547841
Content-Type: application/octet-stream
Content-Transfer-Encoding: 7bit
<?xml version="1.0" encoding="UTF-8"?>
XML Content of the data
------=_Part_1_5155489.1312903547841
Content-Type: application/x-pkcs7-signature; name=smime.p7s
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename=smime.p7s
Here we have the base 64 format of the certificate data.
------=_Part_1_5155489.1312903547841--

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 Certificate Authorities

My users are wanting a way to sign PDF documents, and have them verified for internal and external receipients. We are currently using Acrobat 9 Standard. I know you can create signatures and 'self-sign' them, but those are only trusted if the receipient manually adds them to their 'Trusted' people.
From my reading, it looks like we need to purchase a third party code signing certificate, such as the following: http://www.verisign.com/code-signing/
My question is, what do we need to do to make that certificate availbable to my users to use for their signatures? I'm having a hard time finding documentation on this part.

Here's a good starting point for understanding how CDS and AATL work with Acrobat and Reader: http://learn.adobe.com/wiki/display/security/Digital+Signatures+101
Another option you should look into is Adobe EchoSign: http://blogs.adobe.com/acrobat/tag/echosign

Can I bring digital Signatures and with a page when I extract it?

I have a client who is adding their own digital signature to documents after reading them. Our current methodology involves extracting the page with the signature and adding said page to another adobe document for our records. However, the digital signature never follows. I am thinking this is by design, but I cannot find unequivocal confirmation. Does anyone have documentation or knowledge on this topic that will clearly state whether digital signatures cannot be copied when extracting pages, or if it can. Of course, if they can, I would also like to know how. Thank you very much.
Eric

You are correct that this is by design. A digital signature provides an assurance about the entire contents of the document, not just the page that it is on (e.g., the signature field is on the last page of the contract, but the signature covers the entire contract).
Extracting just the page with signature would never leave you with a valid signature because all the other bytes of the file would be missing so the signature would not validate.
If you want a validatable record of the signature, you will need to save the entire document. If all you really need is an informal, non-verifiable record, you could try printing the page with the signature to another PDF file which should show what the page looks like. But that is all you'd have so make sure that meets the legal requirements of your situations.

Digitally Verified Signature Fields After Saving

I am using Acrobat 9. I am creating a PDF with a whole slew of editable fields. Once the PDF is done I need to be able to email it to several people who need to be able to fill it out and save it (so that they can upload it to a website for me). I have figured this part of it out thanks to someone else asking the same question. HOWEVER... when I save it as "Extend Form Fill-In and Save In Adobe Reader" and email it to my co-worker she is able to open the doc and edit the fields and save it... all except for the Verified Signature Fields, which are VERY important to this particular doc as it is a contract.
Does anybody have any suggestions or ideas? I'm in a pickle and needing to get this doc done very soon. Thanks in advance.

Thanks for your reply. I remember getting a prompt to add the password after certain actions so that is why I thought it could be the same with the printing if the option had not been disabled.
From my point of view, I set security options for others not to be able to modify/do certain actions on my doc, but I would expect I would continue being able to do so...this way securing a document is also limiting myself as the author of the document.
Of course the inconvenience prior to signing turns into impossibility when digitally signed as you say...
I can cope with an inconvenience as I understand the way it has been thought (similar to when you protect an excel sheet or anything similar) but I also think it would be useful to find an alternative solution seeing the constraints added when the doc is signed. Printing out a document does not modify the original document...so it should be allowed (of course, in order to ascertain its validity, the printed copy would need to be checked against the digitally signed one (similar to what we need to do if we copy a document in paper...it needs to be checked against the original or even get attested).
Thanks again!

Message level security: difference digital signature and certificate

Hi everybody,
could anybody please explain the difference between <b>digital signature</b> and <b>certificate</b>?
Thans
Regards Mario

Mario,
A digital signature is an electronic signature that can be used to authenticate the identity of the sender of a message or the signer of a document, and possibly to ensure that the original content of the message or document that has been sent is unchanged. Digital signatures are easily transportable, cannot be imitated by someone else, and can be automatically time-stamped. The ability to ensure that the original signed message arrived means that the sender cannot easily repudiate it later.
A digital signature can be used with any kind of message, whether it is encrypted or not, simply so that the receiver can be sure of the sender's identity and that the message arrived intact. A digital certificate contains the digital signature of the certificate-issuing authority so that anyone can verify that the certificate is real.
where as
A digital certificate is an electronic "credit card" that establishes your credentials when doing business or other transactions on the Web. It is issued by a certification authority (CA). It contains your name, a serial number, expiration dates, a copy of the certificate holder's public key (used for encrypting messages and digital signatures), and the digital signature of the certificate-issuing authority so that a recipient can verify that the certificate is real. Some digital certificates conform to a standard, X.509. Digital certificates can be kept in registries so that authenticating users can look up other users' public keys.
hope it helps u.
--Archana

Verify signature on SAML assertion

I've already asked this question on StackOverflow (http://stackoverflow.com/questions/25394137/verify-signature-on-saml-assertion), but I'm hoping to get a better response here. I'm trying to validate some SAML that looks like this:
<samlp2:Response Destination="http://www.testhabaGoba.com" ID="ResponseId_934151edfe060ceec3067670c2f0f1ea" IssueInstant="2013-09-24T14:33:29.507Z" Version="2.0" xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:samlp2="urn:oasis:names:tc:SAML:2.0:protocol">
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
</ds:Signature>
<saml2:Assertion ID="SamlAssertion-05fd8af7f2c9972e69cdbca612d3f3b8" IssueInstant="2013-09-24T14:33:29.496Z" Version="2.0" xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
</ds:Signature>
</saml2:Assertion>
</samlp2:Response>
The signature on the response always passes, but the signature on the assertion always fails. Even when I use a SAML that doesn't sign the response the assertion signature fails. Here's a condensed version of the code I'm using:
foreach (XmlElement node in xmlDoc.SelectNodes("//*[local-name()='Signature']"))
{// Verify this Signature block
SignedXml signedXml = new SignedXml(node.ParentNode as XmlElement);
signedXml.LoadXml(node);
KeyInfoX509Data x509Data = signedXml.Signature.KeyInfo.OfType<KeyInfoX509Data>().First();
// Verify certificate
X509Certificate2 cert = x509Data.Certificates[0] as X509Certificate2;
log.Info(string.Format("Cert s/n: {0}", cert.SerialNumber));
VerifyX509Chain(cert);// Custom method
// Check for approval
X509Store store = new X509Store(StoreName.TrustedPublisher, StoreLocation.LocalMachine);
store.Open(OpenFlags.ReadOnly);
X509Certificate2Collection collection = store.Certificates.Find(X509FindType.FindBySerialNumber, cert.SerialNumber, true);
Debug.Assert(collection.Count == 1);// Standing in for brevity
// Verify signature
signedXml.CheckSignature(cert, true);
Everything works except the CheckSignature method. It's the only thing that fails and it always fails the SAML assertion. What am I doing wrong?

Hello Matthew T. Ricks,
Personally after reading your post I don't think this issue is related to this forum "Discuss and ask questions about the C# programming language, IDE, libraries, samples, and tools."
The problem is due to SAML assertion fail and I read something like this
http://docs.oracle.com/cd/E21455_01/common/tutorials/authn_saml_xml_sig.html to konw what is SAML and how it works. I will recommend you consult SAML related forum to ask this question.
Regards,
Barry
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SAMLUtils.checkSignatureValid: Couldn't verify signature.

Hi,
When i try to the SAML post. I receive the below error message.
</ds:Signature><samlp:Status><samlp:StatusCode Value="samlp:Success"/></samlp:Status><saml:Assertion xmlns:saml="urn:oasis:names:tc:SAML:1.0:assertion" AssertionID="_2a1708489b7c0a59481ab12aaf855362" IssueInstant="2012-03-27T18:21:36Z" Issuer="econnectng07.test.com:443" MajorVersion="1" MinorVersion="1"><saml:Conditions NotBefore="2012-03-27T18:21:36Z" NotOnOrAfter="2012-03-27T18:26:36Z"/><saml:AuthenticationStatement AuthenticationInstant="2012-03-27T18:21:02Z" AuthenticationMethod="urn:oasis:names:tc:SAML:1.0:am:HardwareToken"><saml:Subject><saml:NameIdentifier Format="urn:oasis:names:tc:SAML:1.1:nameid-format:X509SubjectName">uid=test,ou=People,ou=AMIND,dc=amat,dc=com </saml:NameIdentifier><saml:SubjectConfirmation><saml:ConfirmationMethod>urn:oasis:names:tc:SAML:1.0:cm:bearer</saml:ConfirmationMethod></saml:SubjectConfirmation></saml:Subject><saml:SubjectLocality IPAddress="10.208.155.122"/></saml:AuthenticationStatement></saml:Assertion></samlp:Response>
libSAML:03/27/2012 11:21:37:067 AM PDT: Thread[service-j2ee-103,5,main]
getWSSTTokenProfilePublicKey: entering
libSAML:03/27/2012 11:21:37:067 AM PDT: Thread[service-j2ee-103,5,main]
Could not find a KeyInfo, try to use certAlias
libSAML:03/27/2012 11:21:37:068 AM PDT: Thread[service-j2ee-103,5,main]
SAMLUtils.checkSignatureValid: Couldn't verify signature.
libSAML:03/27/2012 11:21:37:068 AM PDT: Thread[service-j2ee-103,5,main]
verifyResponse: Response's signature is invalid.
libSAML:03/27/2012 11:21:37:069 AM PDT: Thread[service-j2ee-103,5,main]
SAMLUtils.sendError: error page/saml2/jsp/saml2error.jsp
libSAML2:03/27/2012 11:21:41:021 AM PDT: Thread[SystemTimerPool,5,main]
CacheCleanUpRunnable.run:
This is SAML 1 post and i have the client certificate imported in my saml keystore also. Appreciate your help.
libSAML:03/27/2012 11:22:34:002 AM PDT: Thread[SystemTimerPool,5,main]
Clean up runnable wakes up..
libSAML:03/27/2012 11:22:34:002 AM PDT: Thread[SystemTimerPool,5,main]
AssertionManager::CleanUpThread::number of assertions in IdEntryMap:0
[root@dca-ldap-stg1 debug]# pwd

You've cut-off the digital signature from the SAML response in your posting, and haven't provided any information about the digital certificate in your keystore. How can one respond to your problem?
Is the client certificate in your keystore responsible for signing the SAML assertion? If not, do you have the SAML service's digital certificate accessible to your verifier program in your keystore? If not, you need to import the signer's digital certificate into your keystore, verify that it is there, and then run your program again.
Arshad Noor
StrongAuth, Inc.

"Error 0x800b010a: Failed to verify signature of payload: jre" under Eclipse IDE

Hello,
This error is occurring on a system that kept is off the internet (for security reasons):
Failed authenticode verification of payload: C:\ProgramData\Package Cache\.unverified\jre
... Error 0x800b010a: Failed to verify signature of payload: jre
It is related to certificates. I found a KB that addresses the error when the IDE is VS2013 or VS2012:
https://support.microsoft.com/en-us/kb/2746268?wa=wsignin1.0
But the IDE in use in my case is Eclipse. Does the KB apply?

Hi Rich,
the WSUS forum probably isn't the best place for this, you may have better luck in one of the Eclipse forums.
However I have had to follow the steps
in this to get around similar errors when deploying software in disconnected errors, where root cert updates hadn't been deployed before, so the above may indeed help
If you find the answer of assistance please "Vote as Helpful"and/or "Mark as Answer" where applicable. This helps others to find solutions for there issues, and recognises contributions made to the community :)

Smime verify signature and decrypt

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