hmac_sha256 incorrect about sha.jl

[staticfloat]

The correct answer to this particular example is ce0006ef9b02c5c710b8bfcb47e6f5177b44323992e2918dfbdb087a03ec6f4f. The issue here is that you are not feeding tmp_key to the other tools you're checking against, you're feeding bytes2hex(tmp_key), they're not the same thing. The online tool that you posted is not interpreting the key as hex, it's reading the UTF-8 input bytes and using those binary representations.

If you want to do that, use hmac_sha256(collect(codeunits(tmp_key)), str) instead of hmac_sha256(tmp_key, str).

To double-check, use an online tool such as https://www.liavaag.org/English/SHA-Generator/HMAC/ and use Key type: HEX with the key e85726cc1b12609bbaebe535f0926f59.

[pankgeorg]

Nonetheless, this issue is the closest thing to hmac_sha256 documentation I've found. Thanks for the reply!