amyrprv opened a new issue, #10163:
URL: https://github.com/apache/apisix/issues/10163
### Description
I created a custom plugin and I want to encrypt one property of the request
body. I figured out that it requires `lua-openssl ` package from Luarocks which
is not present in the current rockspec dependency tree. I there any way to
perform AES-128-GCM encryption in Lua without any dependency? I am running
Apisix from the official docker image.
```
local ffi = require("ffi")
local openssl = require("resty.openssl")
local function encrypt(key, src)
openssl.rand_load()
local iv = openssl.random(12)
local cipher = openssl.get_cipher("AES-128-GCM")
local ctx = openssl.evp_encrypt_init(key, iv, cipher, true)
local cipherText, tag = ctx:final(src)
if #cipherText ~= #src + 16 then
core.log.error("Invalid cipher text length")
end
local message = ffi.new("char[?]", 12 + #src + 16)
ffi.copy(message, iv, 12)
ffi.copy(message + 12, cipherText, #cipherText)
return ffi.string(message, 12 + #src + 16)
end
```
### Environment
- APISIX version (run `apisix version`): 3.5
- Operating system (run `uname -a`): Linux c518c369b311
5.15.90.1-microsoft-standard-WSL2 #1 SMP Fri Jan 27 02:56:13 UTC 2023 x86_64
x86_64 x86_64 GNU/Linux
- OpenResty / Nginx version (run `openresty -V` or `nginx -V`): nginx
version: openresty/1.21.4.2
- etcd version, if relevant (run `curl
http://127.0.0.1:9090/v1/server_info`):
- APISIX Dashboard version, if relevant:
- Plugin runner version, for issues related to plugin runners:
- LuaRocks version, for installation issues (run `luarocks --version`):
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