rework app registry - trust tweaks

apps/trust.lua

@@ -6,10 +6,6 @@ local Crypto = require('crypto')
 
 local remoteId
 local args = { ... }
-local exchange = {
-  base = 11,
-  primeMod = 625210769
-}
 
 if #args == 1 then
   remoteId = tonumber(args[1])
@@ -35,25 +31,18 @@ if not socket then
   error('Unable to connect to ' .. remoteId .. ' on port 19')
 end
 
-local function modexp(base, exponent, modulo)
-  local remainder = base
-
-  for i = 1, exponent-1 do
-    remainder = remainder * remainder
-    if remainder >= modulo then
-      remainder = remainder % modulo
-    end
-  end
-
-  return remainder
-end
-
-local secretKey = os.getSecretKey()
-local publicKey = modexp(exchange.base, secretKey, exchange.primeMod)
+local publicKey = os.getPublicKey()
 local password = SHA1.sha1(password)
 
 socket:write(Crypto.encrypt({ pk = publicKey, dh = os.getComputerID() }, password))
 
-print(socket:read(2) or 'No response')
-
+local data = socket:read(2)
 socket:close()
+
+if data and data.success then
+  print(data.msg)
+elseif data then
+  error(data.msg)
+else
+  error('No response')
+end