digest is nil on Mac OSX

[rohitjoshi]

Hello,
I am using lua-resty-hmac as part of lua-resty-jwt but signature is always empty. It seems hmac is returning nil digest. but if I use resty.string sha1 algorithm, it works fine.

Below is my nginx/openresty version

/opt/openresty/bin/resty -V
resty 0.03
nginx version:nginx/1.9.3.1
built by clang 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
built with OpenSSL 0.9.8zd 8 Jan 2015
TLS SNI support enabled
configure arguments: --prefix=/opt/openresty/nginx --with-cc-opt='-O2 -I/usr/local/include' --add-    module=../ngx_devel_kit-0.2.19 --add-module=../echo-nginx-module-0.58 --add-module=../xss-nginx-    module-0.05 --add-module=../ngx_coolkit-0.2rc3 --add-module=../set-misc-nginx-module-0.29 --add-    module=../form-input-nginx-module-0.11 --add-module=../encrypted-session-nginx-module-0.04 --add-module=../srcache-nginx-module-0.30 --add-module=../ngx_lua-0.9.16 --add-module=../ngx_lua_upstream-0.03 --add-module=../headers-more-nginx-module-0.26 --add-module=../array-var-nginx-module-0.04 --add-module=../memc-nginx-module-0.16 --add-module=../redis2-nginx-module-0.12 --add-module=../redis-nginx-module-0.3.7 --add-module=../rds-json-nginx-module-0.14 --add-module=../rds-csv-nginx-module-0.06 --with-ld-opt='-Wl,-rpath,/opt/openresty/luajit/lib -L/usr/local/lib' --with-http_ssl_module

resty.hmac

 local hmac = require "resty.hmac"
  local str = require "resty.string"

 local hmac_sha1 = hmac:new("secret_key", hmac.ALGOS.SHA1)
 if not hmac_sha1 then
   ngx.say("failed to create the hmac_sha1 object")
   return
end
local ok = hmac_sha1:update("hello ")
if not ok then
   ngx.say("Failed to update str")
   return
end
local digest = hmac_sha1:final("world",true)
ngx.say("hmac_sha1: ", digest)

resty.string sha1

local resty_sha1 = require "resty.sha1"
 local str = require "resty.string"
 local sha1 = resty_sha1:new()
 if not sha1 then
     ngx.say("failed to get sha1 object")
    return
  end

local ok = sha1:update("hello word")
if not ok then
   ngx.say("Failed to update str")
   return
end
local digest = sha1:final()  -- binary digest
ngx.say("sha1: ", str.to_hex(digest)) 

[jkeys089]

OpenSSL 1.x+ is a prerequisite for lua-resty-hmac. This is a common issue I've seen when developing on OSX (see the comments on this PR for help using a more recent version of OpenSSL on OSX).

[rohitjoshi]

thanks for details. will try with updated version of openssl