Quote:
I just want data encryption standard DES algorithm’s source code in C. Is there any one to help?
Yes, and their names are Google, Bing, SourceForge, GitHUb ...
Ask them politely and they will provide you some help. Learn to use search engines.
We are not a free search service, we don't do your researches unless you are ready to pay for the service, in this case you will have a lot of helpers.