https://lwn.net/Articles/749425/
crypto: inside-secure - hmac(sha256/sha224) support [LWN.net]
hmac sha256cryptoinsidesecuresha224
https://github.com/ColumPaget/Hashrat
GitHub - ColumPaget/Hashrat: Hashing tool supporting md5,sha1,sha256,sha512,whirlpool,jh and hmac...
Hashing tool supporting md5,sha1,sha256,sha512,whirlpool,jh and hmac versions of these. Includes recursive file hashing and other features. - ColumPaget/Hashrat