archlinux EVP_PKEY_size error

[transtone]

2024/01/05 11:02:43 [error] 5776#0: *1 lua entry thread aborted: runtime error: 
/opt/openresty/site/lualib/resty/rsa.lua:388: 
/opt/openresty/luajit/lib/libluajit-5.1.so.2: undefined symbol: EVP_PKEY_size

[spacewander]

What OpenSSL version used in your system? Seems it doesn't export the method EVP_PKEY_size.

[Amitesh21]

Hey @spacewander, I am also seeing the same error. We were using the Openssl v1.1.1r with openresty v1.25.3.1 but seems like openssl 1.1.1 is deprecated now. I am trying to bump openssl to v3.2.1, are the new release changes not legacy compatible? Any sample or doc you can share to fix the issue? Thanks.

[spacewander]

According to https://www.openssl.org/docs/manmaster/man3/EVP_PKEY_size.html, EVP_PKEY_size is renamed to EVP_PKEY_get_size. Would you give it a try?

[nogolang]

you should edit rsa.lua in /usr/local/openssl/lualib/resty/rsa.lua

int EVP_PKEY_size(EVP_PKEY *pkey);
--new version is updated EVP_PKEY_get_size，but you need keep old define
int EVP_PKEY_get_size(EVP_PKEY *pkey);

--update this code
--local size = C.EVP_PKEY_size(pkey)
local size = C.EVP_PKEY_get_size(pkey)

--then you can fix it

[spacewander]

@nogolang
Would you submit a PR for this? Thanks!

[spacewander]

We can use pcall to check if the method is defined:

lua-resty-rsa/lib/resty/rsa.lua

Line 151 in d4e22cf

if not pcall(function () return C.EVP_MD_CTX_create end) then

[nogolang]

@nogolang Would you submit a PR for this? Thanks!

ok,i try

[spacewander]

Fixed in #55