What is concept of strong names (Twist :- How do we generate strong names or what is the process of generating strong names , What is use of SN.EXE , How do we apply strong names to assembly ?

Strong name is similar to GUID(It is supposed to be unique in space and time) in COM components. Strong Name is only needed when we need to deploy assembly in GAC. Strong Names helps GAC to differentiate between two versions. Strong names use public key cryptography (PKC) to ensure that no one can spoof it. PKC use public key and private key concept. Following are the step to generate a strong name and sign a assembly :-

Go to “Visual Studio Command Prompt”. See below figure “Visual studio Command Prompt”. Note the samples are compiled in 2005 but 2003 users do not have to worry about it. Same type of command prompt will be seen in2003 also.

After you are in command prompt type sn.exe -k “c:\test.snk”.

After generation of the file you can view the SNK file in a simple notepad.

After the SNK file is generated it’s time to sign the project with this SNK file

Click on project -- properties and the browse the SNK file to the respective folder and compile the project.

Click on Use a key file to sign the assembly with strong name. and that’s it.