C# Verifying digital signature in .xlsx and .docx files
$30-100 USD
货到付款
I need one web application developed in c# (ASP.NET), using only classes from .Net Framework API, without use of API of other commercial companies.
Description:
Necessary files are .xlsx and .docx files (MS Office 2007 and 2010)
The user should be able to choose a file with FileChooser.
After choosing of a file:
--- if a document does not contain a digital signature, the program should report about this to the user (Warning).
--- if a document contains a digital signature, the program must read data of digital signature and of Certificate and must inform the folowing data to the users:
1) Who signed the document;
2) Date of signature;
3) Which organization issued a certificate;
4) Validity of a certificate;
5) Status of the digital signature
I want to buy SourceCode of this web application. The SourceCode must be written clearly and distinctly.I want to integrate this web application into my website
项目ID： #1582516
关于项目
有5名威客正在参与此工作的竞标，均价$20100/小时
i am an experienced c# programmer, i haven't done signature verification before but i know i can try n do it.
Hi, I am interested to do this project. I am expert in ASP.net and C#. worked on various web & windows application during my 8+ yrs of experience.
