How to Implement Digital Signing in c#.NET

Question

0.00/5 (No votes)

See more:

C#3.0

C#

Hi to all ,
Can any one tell me how to implement digital signing in c#.neT.

Thanks,
MOHAMMAD SIDDIQALI.

Posted 13-Sep-11 0:16am

SAM_India

Updated 20-Jul-16 22:59pm

Add a Solution

Comments

Pravin Patil, Mumbai 13-Sep-11 6:34am

Be specific and come again....

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

CodingLover · Answer 1 · 2011-09-13T00:31:00

Digital singing (under the Cryptography) is a broad area. So what you exactly want to do with signing?

When comes to Hashing, MACs and DSs, all are doing somewhat (not exactly) similar job. Using under different scenarios. So please clarify your exact requirement.

Updated my comment.

You need a hash to digitally sign a document. Because digital signatures are created from hash.

C#

SHA1 mySha1 = new SHA1CryptoServiceProvider();
byte[] hash = mySha1 .ComputeHash(byte_array);

Make sure to have your document in a byte array. If it's larger one you have to think about a better implementation.

Create a digital signature using generated Hash. Have a look at DSACryptoServiceProvider. Then with the received data verify the signature and deals with the data as you wish.

MaulikDusara · Answer 2 · 2011-09-13T07:05:00

Solution 3

HI,

for this you can refer the below links

Implementing Digital Signing in .NET[^]

http://dotnetslackers.com/articles/security/Hashing_MACs_and_Digital_Signatures_in_NET.aspx[^]

Posted 13-Sep-11 7:05am

MaulikDusara

SAM_India · Answer 3 · 2011-09-13T00:39:00

Hi Coding Lover.

*Thanks for very quick response.I want to apply digital signature for uploading confidential documents.
*My client have number of users for his site and,When ever they upload the document digital signature should be applied for the document.Hope you have understood it and i will be waiting for your response.

Thanks,
MOHAMMAD SIDDIQALI.

How to Implement Digital Signing in c#.NET

3 solutions

Solution 1

Solution 3

Solution 2

Add your solution here

Preview 0