I'm trying to find a good library for calculating sha256. I found already a lot of options

crypto++ : http://www.cryptopp.com/

openSSL: http://www.openssl.org/

MIRACL: http://www.shamus.ie/

I would much prefer a library that's well-known, widely industrially used and works on all operating systems, rather than the most efficient one.

What do you recommend for me? (feel free to recommend on a library that I didn't mention here).

c++ sha256
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