I have been provided with .cer (SSL Certificate )and .pfx( Digital Signing Certificate) file by the vendor to connect to an external Webservice through my client.
I want to know more information on how these files work?? I just ran them on my machine by double clicking them but Do I need to code in my client (VC++ application) for them to work?
Please let me know.
If you are using a PEM encoded secret key file and cert file currently via the openssl libraries, you should probably open the pfx in the openssl command line tool (or xca - http://sourceforge.net/projects/xca
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Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions.
Consider email address RFCs:
Look at HTML5 form input element (with type=email) regex pattern: