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Orthographic changes #3

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Orthographic changes #3

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75a34db
Update otp.lua
vstath Aug 23, 2020
764b5d4
Merge pull request #1 from vstath/vstath-patch-1
vstath Aug 23, 2020
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34 changes: 17 additions & 17 deletions otp.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -20,36 +20,36 @@ local Base32_Hash = {
[89] = 24, [90] = 25,
}

local function decode_base32(serect_str)
local Serect_Token = {serect_str:byte(1, -1)}
local Serect_Token_Base32 = {}
local function decode_base32(secret_str)
local Secret_Token = {secret_str:byte(1, -1)}
local Secret_Token_Base32 = {}

local n = 0
local bs = 0

for i, v in ipairs(Serect_Token) do
for i, v in ipairs(Secret_Token) do
n = lshift(n, 5)
n = n + Base32_Hash[v]
bs = (bs + 5) % 8
if (bs < 5) then
Serect_Token_Base32[#Serect_Token_Base32+1] = rshift(band(n, lshift(0xFF, bs)), bs)
Secret_Token_Base32[#Secret_Token_Base32+1] = rshift(band(n, lshift(0xFF, bs)), bs)
end
end

return string.char(table.unpack(Serect_Token_Base32))
return string.char(table.unpack(Secret_Token_Base32))
end

local function encode_base32(serect_str)
local Serect_Token = {serect_str:byte(1, -1)}
local Serect_Token_Base32 = {}
local function encode_base32(secret_str)
local Secret_Token = {secret_str:byte(1, -1)}
local Secret_Token_Base32 = {}
local Tmp_cahr = 0

local c = 0
local n = 0
local tmp_n = 0
local bs =0

for i, v in ipairs(Serect_Token) do
for i, v in ipairs(Secret_Token) do
n = lshift(n, 8)
n = n + v
c = c + 8
Expand All @@ -58,14 +58,14 @@ local function encode_base32(serect_str)

for j = c - bs - 5, 0, -5 do
Tmp_cahr = rshift(band(tmp_n, lshift(0x1F, j)), j)
Serect_Token_Base32[#Serect_Token_Base32+1] = Base32_Hash[Tmp_cahr]
Secret_Token_Base32[#Secret_Token_Base32+1] = Base32_Hash[Tmp_cahr]
end

c = bs
n = band(n, rshift(0xFF, 8 - bs))
end

return string.char(table.unpack(Serect_Token_Base32))
return string.char(table.unpack(Secret_Token_Base32))
end

local function percent_encode_char(c)
Expand Down Expand Up @@ -102,17 +102,17 @@ end

local TOTP_MT = {}

function _M.totp_init(serect_key)
function _M.totp_init(secret_key)
local r = {
type = "totp",
}
setmetatable(r, { __index = TOTP_MT, __tostring = TOTP_MT.serialize })
r:new_key(serect_key)
r:new_key(secret_key)
return r
end

function TOTP_MT:new_key(serect_key)
self.key = serect_key or totp_new_key()
function TOTP_MT:new_key(secret_key)
self.key = secret_key or totp_new_key()
self.key_decoded = decode_base32(self.key)
end

Expand Down Expand Up @@ -172,4 +172,4 @@ function TOTP_MT:serialize()
}
end

return _M
return _M