I am doing a project on digital watermarking. This is the process. The user will choose his image file to upload, chooses his image key(either from the visual studio gallery-folder name is Image Key, or he chooses his own from the directory).
He enters a password, and this password will be embedded into the image uploaded.
Next, there is an option to digitally watermark the image (This is where I am having problems - stuck with the codes)
Here is the work so far, and I couldn't get any further.
I have problem to create digital signature. I created console application and it works there but when I want to run it at server there is exception. It looks like I have problem with reference to the file.
I am trying to create a watermark image on the background , i am wondering what option can i use to call image file from my APP_Themes folder insteaed of my hard drive ) Currently i am using this but couldn't figure it out how to call from APP_Them folder of application rather than being specific.
In my project i have a table named WATERMARKED_IMAGES where i have columns like WID,IMAGE_ID,LOGO_ID,POS,ALPHA,SECRET_KEY[IMAGE_ID and LOGO_ID here are the foreign keys]....i need to retreive IMAGE_CONTENT from another table IMAGE using IMAGE_ID ..the same way LOGO_ID also...after retreiveing i need to embed the logo in the image at the pos and with alpha value mentioned in the table WATERMARKED_IMAGES...
but the problem here is that as i am able to retrieve data IMAGE_CONTENT,LOGO,CONTENT,POS,ALPHA in a single query] from database but i dont know that how to use this detail and where to use these details in my WATERMARK class...
i am doin my final year project and in my project i want to watermark multiple images simultaneously where image,logo,position,alpha and key value is stored in a database table ....i need to retreive these details from db table and perform watermark on those images....
Is there a way to process images once uploaded to my asp.net site, to put a watermark or some text across the image to copyright the images? I would like to do this server-side if possible.The other option I have discovered here [URL] would be to store the images as they are on the server, but to manipulate the display so it appears the image is watermarked . However, this solution is in PHP. Does anyone know a good PHP to VB.NET translator?! Or does anyone have a good suggested link, idea or code? Or can I add PHP to my ASP.NET site?
Is anyone using digital certificates in project ?I have created a digital certificate using Microsoft certificate services.I have installed this certificate on my website.When I access website over https I get digital certificate error in browser.Most common cause for this error is incorrect date/time settings on client machine. This is not the issue in my case.
I am new to digital signature. I have a web application developed in asp.net 3.5. In one of the module of this application I am generating pdf file and storing it on the server. The users must be able to choose a pdf file and digitally sign it with a certificate stored locally (either on their machine or in a smartcard). I do not know whether I should pass pdf file to client place to sign it or I should send Certificate object to the server.
I posted this previously but it ended up in Languages/C# rather than here. I'm not sure if I chose the wrong forum or the admin moved it. I wanted it in here so I'm re-posting it:
I have an APK file (android application archive, same as JAR file format) that I need to determine whether or not is signed, and if so, extract the certificate info.
The JDK provides a command line tool to do this:
jarsigner -verbose -certs -verify file.apk
I'm trying to determine if there's a way using the Security classes to accomplish the same thing in C# code.
I have a website that needs me to use ActiveX. and there is a security policy in my office that needs me to DIGITALLY SIGNING the ActiveX ?[URL]but still couldnt understand what is the actual step that i should do. plus , the link is broken. does anyone know how to do it ?
I want to create a digital signature, for my product, for creating the digital sigmature i want digital certificate. I came to know there are lot of third party available for creating digital signature. If any one know can tell some of third party for this.
I have an apliccattion Web, but now I will need get the digital certificate in specific form.Is possible show the dialog box (by code) wiht digital certificate list for the user choice digital certificate and then continue wiht my process ???
I am currently having trouble with verifying the digital signature in a excel file. The digital signature is used to sign the Macro so that it is possible to authenticate and ensure that no one has tamper with the Macro.
Currently, I am able to check that the excel file is digitally signed. However, I can't seem to be able to verify and ensure that the digital signature is authentic. I'm using asp.net 3.5 with vb.net.
I have asp.net page running under MOSS2007 and there is Access Denied error at signing (signedXml.ComputeSignature()). The code works as normal .net web application but it does not work under MOSS.
I'm looking to create a simple watermark on the fly for an image, taking one image (JPEG) and adding some text to it on the BOTTOM of the image in white, with a solid black background right across the bottom. haven't been able to find anything that does it on the bottom of the JPEG.
