signature

Word Digital Signature

From what I understand PDF is an open format and you can digitally sign the PDF document as proof using a certificate issued by a CA which follows open standards.What about Microsoft word can I sign using an open standards certificate? Can someone clarify if I can do a signature on word using a standard certificate or only from Microsoft...

Is this RSA-based signature (with recovery) scheme cryptographically sound?

I am implementing a simple license-file system, and would like to know if there are any mistakes I'm making with my current line of implementation. The message data is smaller than the key. I'm using RSA, with a keysize of 3072bits. The issuer of the licenses generates the message to be signed, and signs it, using a straightforwards RS...

How do I find all the methods that have specific parameters with reflection?

I need to find all the methods in a class that accept a set of parameters in a specific order, some of them are generics (Collection). The example on the Sun web site only works with non generic classes: http://java.sun.com/docs/books/tutorial/reflect/member/methodInvocation.html cheers in advance ...

Adding a GPG signature to an already signed document?

We'd like to implement a workflow that requires multiple people to digitallly sign a document. If I have multiple secret keys in my own keychain, I can do something as simple as: gpg --sign -u userid1 -u userid2 filename But what do I do if I've got an already signed document and I want to add a signature? One solution would be to h...

Ability to draw and record a signature as part of a form - iphone

Apolgies in advance for any errors.. new to this and am not a developer/programmer.. just have some basic unix experience. I have searched the web and struggled to find a solution to my problem when I stumbled onto this website which maybe suggested that there is a solution to my question. For work i use a windows mobile device because...

Is possible to persist data in the .net assembly Metadata or Header?

I want to implement a custom assembly signature mechanism just like Strong Name, then develop a program to write the signature info in the assembly Metadata,In the assembly of internal read and verification of the signature is correct. Is possible to do this? ...

Best solution for this signature generator?

Hey! i want to know the best solution for my problem. I have a signature generator http://www.anitard.org/siggen/siggen_stripes/ where people can upload their own images for the signature. The problem is that my storage will get full pretty fast if i dont somehow have a script that deletes the images when they are done with the signature...

Signature generator with upload does not work

Hey, i just wanted to know if you guys know why this does not work. http://www.anitard.org/siggen/siggen_stripes/ When you've uploaded an image the script gets the file path from the form and then when you press create a signature is supposed to appear with the image you uploaded, but it doesn't! If anyone know what the problem is, pl...

How to make signature generator save in folder?

The upload script in this page is currently uploading the images to the same folder as the script. How do i make the script save all the images in another folder? <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"&gt; <html> <head> <meta http-equiv="Content-Type" content="text/html; cha...

How do you solve the iPhone error "signature is valid but not trusted"?

Finally got MGTwitterEngine stuff to compile (by setting the Header Search Paths to /usr/include/libxml2 iphoneos3.0/usr/lib/libxml2) AND link (by removing the Twitter LibXML Parsers code and assigning a weak role to libxml2.2.dylib in Targets: Link Binary With Libraries). But when I do a Build and Go to the iPhone (not the simula...

Digital Signature for Excel Macro

In our project we have an excel template (.xlt) and an add-ins file (.xla). These files are used to create a dataview. Dataview is nothing but a kind of report. The xla contains code to create controls for creating, deleting, managing the dataview and its contents. These controls are OCX controls created in VC++ for creating the dataview...

How to verify a jar signed with jarsigner programmatically

I'm wanting to sign a jar using jarsigner, then verify it using a Java application which does not have the signed jar as part of it's classpath (i.e. just using a filesystem location of the jar) Now my problem is getting the signature file out of the jar, is there a simple way to do this? I've had a play with the Inflater and Jar Input...

ASP.NET Dynamic gaming forum signatures

How could I create a dynamic forum signature generator using ASP.NET MVC. I currently have a Stats fetcher that retrieves the user info to be used in the Forum Signature. I'm trying to create a forum signature generator where a user can enter their user name and generate an image that they can put in their forum signature that will show...

Signature inside of a structure

I want to place signature/structure pair inside a structure, like so: structure Outer :> OUTER = struct signature INNER = sig ... end structure Inner :> INNER = struct ... end end but even the simplest of examples produces an error: ../test.sml:1.18-2.6 Error: syntax error: replacing STRUCT with...

Twitter API - Validating Twitter is actually Twitter

I've been looking around at various APIs, and since twitter seems to be a common discussion point, I'll use it as an example. A lot of APIs are implementing oAuth which is great for allowing the service to authenicate and authorize the application connecting to it, however, from what I have seen there doesnt seem to be a way for the ap...

Need a signature capture system/method for a SmartPhone?

Need a way of capturing signatures using a SmartPhone. Preferably usable on Verizon networks. This will be used to sign off receipt of medical supply deliveries to customers. Thanks! ...

Using a PEM (X.509) private key to sign a message natively

I'm trying to use a PEM(X.509) certificate (stored in a privateKey.pem file on disk) to sign messages sent via sockets in Java, but am having a lot of trouble finding an example that's close. I'm normally a C++ guy who's just stepping in to help on this project, so it's been a little difficult for me to put it all together into code that...

Append PDF to a Signed PDF

I need to append a pdf file to a digital signed pdf file, keeping valid the signature ...maybe using revision? ...using iTextSharp? How can I do it? Please help me with some sample. ...

Create a button that links to a website from within an Outlook 2007 signature

Apparently, Outlook 2007 no longer supports embedded HTML code within signatures. I had no difficulty adding a DONATION button to my signature, but I'm unable to link from that button to a website. Does anybody have a suggestion to accomplish this? ...

Main's Signature in C++

The standard explicitly states that main has two valid (i.e., guaranteed to work) signatures; namely: int main(); int main(int, char*[]); My question is simple, would something like the following be legal? int main(const unsigned int, const char* const* argv); My tests say 'yes', but I'm unsure of the answer because am I not overlo...