About:
I will write for you cryptography utility using Windows CryptoAPI or OpenSSL which can signing data by X.509 certificate and verify signature, validate certificate chain, add to signature time-stamp.
The program can be C++ or C#.
The program can be C++ or C#.
I can also provide bespoke software according to your needs.
Please contact me before placing your order, so we can discuss your assignment problem and make a reasonable timeline. Prices are indicative, but may very depending on the level of input needs.
Reviews
:
Very fast and was really helpfull!
:Third time working with Alexander and still smiling. Coming back to buy some more.
:2nd time engaging his service, never fails to deliver excelent quality. My go to guy
:Alexander was thorough in getting details. Was patient with me and was very responsive. Quality work delivered, and great communication througout. Was a pleasure overall.
:Alexander is an excellent professional 100% recommended
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