求erlang中hmac sha1加密算法

dreamxyp

把c 的代码 找出来  用erlang 抄一次

不过有现成的

1. crypto:start().
   
2. 
   
3. <<Mac:160/integer>> = crypto:hmac(sha, <<"hello">>, <<"world">>).

复制代码

<<138,58,132,188,208,208,6,94,151,241,117,211,112,68,124,
125,2,224,9,115>>

1. lists:flatten(io_lib:format("~40.16.0b", [Mac])).
   

复制代码

"8a3a84bcd0d0065e97f175d370447c7d02e00973"