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make sure we got enough random bytes

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This commit is contained in:
Armin Preiml 2019-07-11 15:32:51 +02:00
parent 0c55f38fda
commit 1159322c35
1 changed files with 5 additions and 1 deletions
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6
init.lua
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@ -36,7 +36,11 @@ end
-- Efficient function to get a random string
function random_string()
local random_bytes = io.open("/dev/urandom"):read(64);
local length = 64
local random_bytes = io.open("/dev/urandom"):read(length);
if string.len(random_bytes) ~= length then
error("Not enough random bytes read")
end
return tohex(random_bytes);
end