C++ HMAC & SHA256 Cryptography function required

It can be done :)

I have it already. I used it a few years ago to check unicity of a memo field. as SHA256 hashing allows to compute a key even on very huge files, there is an init function to initialize the structures, and an AddData function to submit a new data block. the second function can be called severa times if the whole data don't fit in memory. then a third function allows to get the checksum.

Hello, I've a master degree in Computer Science. I've strong experience in C++ and algorithm programming. I studied Cryptography in the university and I know the theoretical concepts behind the practical algorithms. I'm sure I can do your job with perfect quality. Best Regards, Lubomir Russev

I studied cryptography in University and I will start to study on my Msc. on cryptography this fall. I worked with SHA256 and HMAC both theoratically and practically.

please check pm

I can do it. ^_^

having good amount of industry experience and can deliver the code on time with good quality

Hello. I can do this. I work with VC6 every day in my job. I can do this in my free time. I can do this for less than 25 $. Best regards Mateusz