One if us must use google in a different fashion. I found what I was looking for in link seven on the first page....and link one on the first page for the other term.
Google is indeed your friend
You evidently knew that "LUA" had something to do with computer security, but it is certainly not a common acronym in the photography world, nor did your first post provide any such context. Wikipedia tells me:
"Lua may refer to:
Lua (programming language), a lightweight, extensible programming language
Lua (goddess), the Roman goddess
Lua (martial art), a traditional Hawaiian martial art
"Lua" (song), a single by the folk rock band Bright Eyes
Lua, Duff Islands, one of the islands in the Duff Islands group
Least user access or Least-privilege User Account, a concept in computer security
Lawa people, an ethnic group in northern Thailand
Lua people, an ethnic group in northern Laos
Niellim language, a Bua language spoken in southern Chad
Last universal ancestor, the hypothetical organism from which all other species of organisms descended
Saint Lua, Irish saint from the late sixth century, early seventh century.
Tshiluba language ISO 639 code"
As for Google, the seventh link on page one for me was "Lua - TIOBE
The Lua Programming Language. Highest Rating (since 2003): 0.771% (20th position , December 2007); Lowest Rating (since 2003): 0.015% (69th position, ...www.tiobe.com/content/paperinfo/tpci/Lua.html
And the first three hits Google gave me for SRP were:
"SRP: Salt River Project power and water"
"SRP: How to contact us" and
I think most forum visitors here can understand acronyms such as PS for Photoshop, LR for Lightroom, DR for dynamic range, and a few others. But it seems unreasonable to me to expect most photographers to be familiar with either LUA or SRP. A little context would help.