made system use full salt+pepper

Src/Hyperion-firmware-cct/boot/cct/boot.lua

@@ -198,6 +198,7 @@ local ok, err = xpcall(function()
         local smallestDiff = math.huge
 
         for k, _ in pairs(tbl) do
+            if k==target then return k end
             local diff = math.abs(k - target)
             if diff < smallestDiff then
                 smallestDiff = diff

Src/Hyperion-firmware-cct/lib/modules/cc-tweaked/25_tty.kmod

@@ -49,6 +49,7 @@ local function findClosest(tbl, target)
     local smallestDiff = math.huge
 
     for k, _ in pairs(tbl) do
+        if k==target then return k end
         local diff = math.abs(k - target)
         if diff < smallestDiff then
             smallestDiff = diff

Src/Hyperion-kernel/lib/modules/hyperion/40_auth.kmod

@@ -150,16 +150,11 @@ end
 local pepper = getFile("/etc/pam.d/secret")
 
 local function genSalt()
-    local chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789./"
-    local s = ""
-    for i = 1, 16 do
-        s = s .. chars:sub(math.random(1, #chars), math.random(1, #chars))
-    end
-    return s
+    return toHex(math.random(0,2^32))
 end
 
 local function hashPassword(password, salt)
-    local key = (pepper .. salt):sub(1, 32)
+    local key = (pepper .. salt)
     return blake2s(password, key)
 end