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746 lines
27 KiB
Lua
746 lines
27 KiB
Lua
--
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-- SHA-256 secure hash computation, and HMAC-SHA256 signature computation
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--
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-- Copyright 2017 Jqqqi
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--
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local sha256 = { }
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local MOD = 2 ^ 32
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local MODM = MOD - 1
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local function memoize(f)
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local mt = { }
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local t = setmetatable( { }, mt)
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function mt:__index(k)
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local v = f(k)
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t[k] = v
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return v
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end
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return t
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end
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local function make_bitop_uncached(t, m)
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local function bitop(a, b)
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local res, p = 0, 1
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while a ~= 0 and b ~= 0 do
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local am, bm = a % m, b % m
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res = res + t[am][bm] * p
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a =(a - am) / m
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b =(b - bm) / m
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p = p * m
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end
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res = res +(a + b) * p
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return res
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end
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return bitop
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end
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local function make_bitop(t)
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local op1 = make_bitop_uncached(t, 2 ^ 1)
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local op2 = memoize( function(a) return memoize( function(b) return op1(a, b) end) end)
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return make_bitop_uncached(op2, 2 ^(t.n or 1))
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end
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local bxor1 = make_bitop( { [0] = { [0] = 0, [1] = 1 }, [1] = { [0] = 1, [1] = 0 }, n = 4 })
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local function bxor(a, b, c, ...)
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local z
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if b then
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a = a % MOD
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b = b % MOD
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z = bxor1(a, b)
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if c then z = bxor(z, c, ...) end
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return z
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elseif a then
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return a % MOD
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else
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return 0
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end
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end
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local function band(a, b)
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local z
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if b then
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a = a % MOD
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b = b % MOD
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z =((a + b) - bxor1(a, b)) / 2
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--if c then z = bit32_band(z, c, ...) end
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return z
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elseif a then
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return a % MOD
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else
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return MODM
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end
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end
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local function bnot(x) return(-1 - x) % MOD end
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local function rshift1(a, disp)
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--if disp < 0 then return lshift(a, - disp) end
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return math.floor(a % 2 ^ 32 / 2 ^ disp)
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end
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local function rshift(x, disp)
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if disp > 31 or disp < -31 then return 0 end
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return rshift1(x % MOD, disp)
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end
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local function lshift(a, disp)
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if disp < 0 then return rshift(a, - disp) end
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return(a * 2 ^ disp) % 2 ^ 32
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end
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local function rrotate(x, disp)
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x = x % MOD
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disp = disp % 32
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local low = band(x, 2 ^ disp - 1)
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return rshift(x, disp) + lshift(low, 32 - disp)
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end
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local k = {
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0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5,
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0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5,
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0xd807aa98,0x12835b01,0x243185be,0x550c7dc3,
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0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174,
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0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc,
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0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da,
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0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7,
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0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967,
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0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13,
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0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85,
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0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3,
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0xd192e819,0xd6990624,0xf40e3585,0x106aa070,
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0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5,
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0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3,
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0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208,
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0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2,
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}
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local function str2hexa(s)
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return(string.gsub(s, ".", function(c) return string.format("%02x", string.byte(c)) end))
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end
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local function num2s(l, n)
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local s = ""
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for i = 1, n do
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local rem = l % 256
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s = string.char(rem) .. s
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l =(l - rem) / 256
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end
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return s
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end
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local function s232num(s, i)
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local n = 0
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for i = i, i + 3 do n = n * 256 + string.byte(s, i) end
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return n
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end
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local function preproc(msg, len)
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local extra = 64 -((len + 9) % 64)
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len = num2s(8 * len, 8)
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msg = msg .. "\128" .. string.rep("\0", extra) .. len
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assert(#msg % 64 == 0)
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return msg
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end
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local function initH256(H)
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H[1] = 0x6a09e667
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H[2] = 0xbb67ae85
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H[3] = 0x3c6ef372
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H[4] = 0xa54ff53a
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H[5] = 0x510e527f
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H[6] = 0x9b05688c
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H[7] = 0x1f83d9ab
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H[8] = 0x5be0cd19
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return H
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end
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local function digestblock(msg, i, H)
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local w = { }
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for j = 1, 16 do w[j] = s232num(msg, i +(j - 1) * 4) end
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for j = 17, 64 do
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local v = w[j - 15]
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local s0 = bxor(rrotate(v, 7), rrotate(v, 18), rshift(v, 3))
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v = w[j - 2]
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w[j] = w[j - 16] + s0 + w[j - 7] + bxor(rrotate(v, 17), rrotate(v, 19), rshift(v, 10))
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end
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local a, b, c, d, e, f, g, h = H[1], H[2], H[3], H[4], H[5], H[6], H[7], H[8]
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for i = 1, 64 do
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local s0 = bxor(rrotate(a, 2), rrotate(a, 13), rrotate(a, 22))
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local maj = bxor(band(a, b), band(a, c), band(b, c))
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local t2 = s0 + maj
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local s1 = bxor(rrotate(e, 6), rrotate(e, 11), rrotate(e, 25))
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local ch = bxor(band(e, f), band(bnot(e), g))
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local t1 = h + s1 + ch + k[i] + w[i]
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h, g, f, e, d, c, b, a = g, f, e, d + t1, c, b, a, t1 + t2
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end
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H[1] = band(H[1] + a)
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H[2] = band(H[2] + b)
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H[3] = band(H[3] + c)
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H[4] = band(H[4] + d)
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H[5] = band(H[5] + e)
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H[6] = band(H[6] + f)
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H[7] = band(H[7] + g)
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H[8] = band(H[8] + h)
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end
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local function hex_to_binary(hex)
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return hex:gsub('..', function(hexval)
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return string.char(tonumber(hexval, 16))
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end )
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end
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local blocksize = 64 -- 512 bits
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local xor_with_0x5c = {
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[string.char(0)] = string.char(92),
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[string.char(1)] = string.char(93),
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[string.char(2)] = string.char(94),
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[string.char(3)] = string.char(95),
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[string.char(4)] = string.char(88),
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[string.char(5)] = string.char(89),
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[string.char(6)] = string.char(90),
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[string.char(7)] = string.char(91),
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[string.char(8)] = string.char(84),
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[string.char(9)] = string.char(85),
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[string.char(10)] = string.char(86),
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[string.char(11)] = string.char(87),
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[string.char(12)] = string.char(80),
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[string.char(13)] = string.char(81),
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[string.char(14)] = string.char(82),
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[string.char(15)] = string.char(83),
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[string.char(16)] = string.char(76),
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[string.char(17)] = string.char(77),
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[string.char(18)] = string.char(78),
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[string.char(19)] = string.char(79),
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[string.char(20)] = string.char(72),
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[string.char(21)] = string.char(73),
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[string.char(22)] = string.char(74),
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[string.char(23)] = string.char(75),
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[string.char(24)] = string.char(68),
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[string.char(25)] = string.char(69),
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[string.char(26)] = string.char(70),
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[string.char(27)] = string.char(71),
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[string.char(28)] = string.char(64),
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[string.char(29)] = string.char(65),
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[string.char(30)] = string.char(66),
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[string.char(31)] = string.char(67),
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[string.char(32)] = string.char(124),
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[string.char(33)] = string.char(125),
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[string.char(34)] = string.char(126),
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[string.char(35)] = string.char(127),
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[string.char(36)] = string.char(120),
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[string.char(37)] = string.char(121),
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[string.char(38)] = string.char(122),
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[string.char(39)] = string.char(123),
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[string.char(40)] = string.char(116),
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[string.char(41)] = string.char(117),
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[string.char(42)] = string.char(118),
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[string.char(43)] = string.char(119),
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[string.char(44)] = string.char(112),
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[string.char(45)] = string.char(113),
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[string.char(46)] = string.char(114),
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[string.char(47)] = string.char(115),
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[string.char(48)] = string.char(108),
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[string.char(49)] = string.char(109),
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[string.char(50)] = string.char(110),
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[string.char(51)] = string.char(111),
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[string.char(52)] = string.char(104),
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[string.char(53)] = string.char(105),
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[string.char(54)] = string.char(106),
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[string.char(55)] = string.char(107),
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[string.char(56)] = string.char(100),
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[string.char(57)] = string.char(101),
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[string.char(58)] = string.char(102),
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[string.char(59)] = string.char(103),
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[string.char(60)] = string.char(96),
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[string.char(61)] = string.char(97),
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[string.char(62)] = string.char(98),
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[string.char(63)] = string.char(99),
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[string.char(64)] = string.char(28),
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[string.char(65)] = string.char(29),
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[string.char(66)] = string.char(30),
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[string.char(67)] = string.char(31),
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[string.char(68)] = string.char(24),
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[string.char(69)] = string.char(25),
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[string.char(70)] = string.char(26),
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[string.char(71)] = string.char(27),
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[string.char(72)] = string.char(20),
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[string.char(73)] = string.char(21),
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[string.char(74)] = string.char(22),
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[string.char(75)] = string.char(23),
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[string.char(76)] = string.char(16),
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[string.char(77)] = string.char(17),
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[string.char(78)] = string.char(18),
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[string.char(79)] = string.char(19),
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[string.char(80)] = string.char(12),
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[string.char(81)] = string.char(13),
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[string.char(82)] = string.char(14),
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[string.char(83)] = string.char(15),
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[string.char(84)] = string.char(8),
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[string.char(85)] = string.char(9),
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[string.char(86)] = string.char(10),
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[string.char(87)] = string.char(11),
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[string.char(88)] = string.char(4),
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[string.char(89)] = string.char(5),
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[string.char(90)] = string.char(6),
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[string.char(91)] = string.char(7),
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[string.char(92)] = string.char(0),
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[string.char(93)] = string.char(1),
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[string.char(94)] = string.char(2),
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[string.char(95)] = string.char(3),
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[string.char(96)] = string.char(60),
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[string.char(97)] = string.char(61),
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[string.char(98)] = string.char(62),
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[string.char(99)] = string.char(63),
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[string.char(100)] = string.char(56),
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[string.char(101)] = string.char(57),
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[string.char(102)] = string.char(58),
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[string.char(103)] = string.char(59),
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[string.char(104)] = string.char(52),
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[string.char(105)] = string.char(53),
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[string.char(106)] = string.char(54),
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[string.char(107)] = string.char(55),
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[string.char(108)] = string.char(48),
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[string.char(109)] = string.char(49),
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[string.char(110)] = string.char(50),
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[string.char(111)] = string.char(51),
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[string.char(112)] = string.char(44),
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[string.char(113)] = string.char(45),
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[string.char(114)] = string.char(46),
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[string.char(115)] = string.char(47),
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[string.char(116)] = string.char(40),
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[string.char(117)] = string.char(41),
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[string.char(118)] = string.char(42),
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[string.char(119)] = string.char(43),
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[string.char(120)] = string.char(36),
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[string.char(121)] = string.char(37),
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[string.char(122)] = string.char(38),
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[string.char(123)] = string.char(39),
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[string.char(124)] = string.char(32),
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[string.char(125)] = string.char(33),
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[string.char(126)] = string.char(34),
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[string.char(127)] = string.char(35),
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[string.char(128)] = string.char(220),
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[string.char(129)] = string.char(221),
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[string.char(130)] = string.char(222),
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[string.char(131)] = string.char(223),
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[string.char(132)] = string.char(216),
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[string.char(133)] = string.char(217),
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[string.char(134)] = string.char(218),
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[string.char(135)] = string.char(219),
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[string.char(136)] = string.char(212),
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[string.char(137)] = string.char(213),
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[string.char(138)] = string.char(214),
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[string.char(139)] = string.char(215),
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[string.char(140)] = string.char(208),
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[string.char(141)] = string.char(209),
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[string.char(142)] = string.char(210),
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[string.char(143)] = string.char(211),
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[string.char(144)] = string.char(204),
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[string.char(145)] = string.char(205),
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[string.char(146)] = string.char(206),
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[string.char(147)] = string.char(207),
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[string.char(148)] = string.char(200),
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[string.char(149)] = string.char(201),
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[string.char(150)] = string.char(202),
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[string.char(151)] = string.char(203),
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[string.char(152)] = string.char(196),
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[string.char(153)] = string.char(197),
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[string.char(154)] = string.char(198),
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[string.char(155)] = string.char(199),
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[string.char(156)] = string.char(192),
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[string.char(157)] = string.char(193),
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[string.char(158)] = string.char(194),
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[string.char(159)] = string.char(195),
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[string.char(160)] = string.char(252),
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[string.char(161)] = string.char(253),
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[string.char(162)] = string.char(254),
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[string.char(163)] = string.char(255),
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[string.char(164)] = string.char(248),
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[string.char(165)] = string.char(249),
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[string.char(166)] = string.char(250),
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[string.char(167)] = string.char(251),
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[string.char(168)] = string.char(244),
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[string.char(169)] = string.char(245),
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[string.char(170)] = string.char(246),
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[string.char(171)] = string.char(247),
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[string.char(172)] = string.char(240),
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[string.char(173)] = string.char(241),
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[string.char(174)] = string.char(242),
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[string.char(175)] = string.char(243),
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[string.char(176)] = string.char(236),
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[string.char(177)] = string.char(237),
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[string.char(178)] = string.char(238),
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|
[string.char(179)] = string.char(239),
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|
[string.char(180)] = string.char(232),
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[string.char(181)] = string.char(233),
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[string.char(182)] = string.char(234),
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[string.char(183)] = string.char(235),
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[string.char(184)] = string.char(228),
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[string.char(185)] = string.char(229),
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[string.char(186)] = string.char(230),
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[string.char(187)] = string.char(231),
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[string.char(188)] = string.char(224),
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[string.char(189)] = string.char(225),
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[string.char(190)] = string.char(226),
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[string.char(191)] = string.char(227),
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[string.char(192)] = string.char(156),
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[string.char(193)] = string.char(157),
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|
[string.char(194)] = string.char(158),
|
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[string.char(195)] = string.char(159),
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[string.char(196)] = string.char(152),
|
|
[string.char(197)] = string.char(153),
|
|
[string.char(198)] = string.char(154),
|
|
[string.char(199)] = string.char(155),
|
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[string.char(200)] = string.char(148),
|
|
[string.char(201)] = string.char(149),
|
|
[string.char(202)] = string.char(150),
|
|
[string.char(203)] = string.char(151),
|
|
[string.char(204)] = string.char(144),
|
|
[string.char(205)] = string.char(145),
|
|
[string.char(206)] = string.char(146),
|
|
[string.char(207)] = string.char(147),
|
|
[string.char(208)] = string.char(140),
|
|
[string.char(209)] = string.char(141),
|
|
[string.char(210)] = string.char(142),
|
|
[string.char(211)] = string.char(143),
|
|
[string.char(212)] = string.char(136),
|
|
[string.char(213)] = string.char(137),
|
|
[string.char(214)] = string.char(138),
|
|
[string.char(215)] = string.char(139),
|
|
[string.char(216)] = string.char(132),
|
|
[string.char(217)] = string.char(133),
|
|
[string.char(218)] = string.char(134),
|
|
[string.char(219)] = string.char(135),
|
|
[string.char(220)] = string.char(128),
|
|
[string.char(221)] = string.char(129),
|
|
[string.char(222)] = string.char(130),
|
|
[string.char(223)] = string.char(131),
|
|
[string.char(224)] = string.char(188),
|
|
[string.char(225)] = string.char(189),
|
|
[string.char(226)] = string.char(190),
|
|
[string.char(227)] = string.char(191),
|
|
[string.char(228)] = string.char(184),
|
|
[string.char(229)] = string.char(185),
|
|
[string.char(230)] = string.char(186),
|
|
[string.char(231)] = string.char(187),
|
|
[string.char(232)] = string.char(180),
|
|
[string.char(233)] = string.char(181),
|
|
[string.char(234)] = string.char(182),
|
|
[string.char(235)] = string.char(183),
|
|
[string.char(236)] = string.char(176),
|
|
[string.char(237)] = string.char(177),
|
|
[string.char(238)] = string.char(178),
|
|
[string.char(239)] = string.char(179),
|
|
[string.char(240)] = string.char(172),
|
|
[string.char(241)] = string.char(173),
|
|
[string.char(242)] = string.char(174),
|
|
[string.char(243)] = string.char(175),
|
|
[string.char(244)] = string.char(168),
|
|
[string.char(245)] = string.char(169),
|
|
[string.char(246)] = string.char(170),
|
|
[string.char(247)] = string.char(171),
|
|
[string.char(248)] = string.char(164),
|
|
[string.char(249)] = string.char(165),
|
|
[string.char(250)] = string.char(166),
|
|
[string.char(251)] = string.char(167),
|
|
[string.char(252)] = string.char(160),
|
|
[string.char(253)] = string.char(161),
|
|
[string.char(254)] = string.char(162),
|
|
[string.char(255)] = string.char(163),
|
|
}
|
|
|
|
local xor_with_0x36 = {
|
|
[string.char(0)] = string.char(54),
|
|
[string.char(1)] = string.char(55),
|
|
[string.char(2)] = string.char(52),
|
|
[string.char(3)] = string.char(53),
|
|
[string.char(4)] = string.char(50),
|
|
[string.char(5)] = string.char(51),
|
|
[string.char(6)] = string.char(48),
|
|
[string.char(7)] = string.char(49),
|
|
[string.char(8)] = string.char(62),
|
|
[string.char(9)] = string.char(63),
|
|
[string.char(10)] = string.char(60),
|
|
[string.char(11)] = string.char(61),
|
|
[string.char(12)] = string.char(58),
|
|
[string.char(13)] = string.char(59),
|
|
[string.char(14)] = string.char(56),
|
|
[string.char(15)] = string.char(57),
|
|
[string.char(16)] = string.char(38),
|
|
[string.char(17)] = string.char(39),
|
|
[string.char(18)] = string.char(36),
|
|
[string.char(19)] = string.char(37),
|
|
[string.char(20)] = string.char(34),
|
|
[string.char(21)] = string.char(35),
|
|
[string.char(22)] = string.char(32),
|
|
[string.char(23)] = string.char(33),
|
|
[string.char(24)] = string.char(46),
|
|
[string.char(25)] = string.char(47),
|
|
[string.char(26)] = string.char(44),
|
|
[string.char(27)] = string.char(45),
|
|
[string.char(28)] = string.char(42),
|
|
[string.char(29)] = string.char(43),
|
|
[string.char(30)] = string.char(40),
|
|
[string.char(31)] = string.char(41),
|
|
[string.char(32)] = string.char(22),
|
|
[string.char(33)] = string.char(23),
|
|
[string.char(34)] = string.char(20),
|
|
[string.char(35)] = string.char(21),
|
|
[string.char(36)] = string.char(18),
|
|
[string.char(37)] = string.char(19),
|
|
[string.char(38)] = string.char(16),
|
|
[string.char(39)] = string.char(17),
|
|
[string.char(40)] = string.char(30),
|
|
[string.char(41)] = string.char(31),
|
|
[string.char(42)] = string.char(28),
|
|
[string.char(43)] = string.char(29),
|
|
[string.char(44)] = string.char(26),
|
|
[string.char(45)] = string.char(27),
|
|
[string.char(46)] = string.char(24),
|
|
[string.char(47)] = string.char(25),
|
|
[string.char(48)] = string.char(6),
|
|
[string.char(49)] = string.char(7),
|
|
[string.char(50)] = string.char(4),
|
|
[string.char(51)] = string.char(5),
|
|
[string.char(52)] = string.char(2),
|
|
[string.char(53)] = string.char(3),
|
|
[string.char(54)] = string.char(0),
|
|
[string.char(55)] = string.char(1),
|
|
[string.char(56)] = string.char(14),
|
|
[string.char(57)] = string.char(15),
|
|
[string.char(58)] = string.char(12),
|
|
[string.char(59)] = string.char(13),
|
|
[string.char(60)] = string.char(10),
|
|
[string.char(61)] = string.char(11),
|
|
[string.char(62)] = string.char(8),
|
|
[string.char(63)] = string.char(9),
|
|
[string.char(64)] = string.char(118),
|
|
[string.char(65)] = string.char(119),
|
|
[string.char(66)] = string.char(116),
|
|
[string.char(67)] = string.char(117),
|
|
[string.char(68)] = string.char(114),
|
|
[string.char(69)] = string.char(115),
|
|
[string.char(70)] = string.char(112),
|
|
[string.char(71)] = string.char(113),
|
|
[string.char(72)] = string.char(126),
|
|
[string.char(73)] = string.char(127),
|
|
[string.char(74)] = string.char(124),
|
|
[string.char(75)] = string.char(125),
|
|
[string.char(76)] = string.char(122),
|
|
[string.char(77)] = string.char(123),
|
|
[string.char(78)] = string.char(120),
|
|
[string.char(79)] = string.char(121),
|
|
[string.char(80)] = string.char(102),
|
|
[string.char(81)] = string.char(103),
|
|
[string.char(82)] = string.char(100),
|
|
[string.char(83)] = string.char(101),
|
|
[string.char(84)] = string.char(98),
|
|
[string.char(85)] = string.char(99),
|
|
[string.char(86)] = string.char(96),
|
|
[string.char(87)] = string.char(97),
|
|
[string.char(88)] = string.char(110),
|
|
[string.char(89)] = string.char(111),
|
|
[string.char(90)] = string.char(108),
|
|
[string.char(91)] = string.char(109),
|
|
[string.char(92)] = string.char(106),
|
|
[string.char(93)] = string.char(107),
|
|
[string.char(94)] = string.char(104),
|
|
[string.char(95)] = string.char(105),
|
|
[string.char(96)] = string.char(86),
|
|
[string.char(97)] = string.char(87),
|
|
[string.char(98)] = string.char(84),
|
|
[string.char(99)] = string.char(85),
|
|
[string.char(100)] = string.char(82),
|
|
[string.char(101)] = string.char(83),
|
|
[string.char(102)] = string.char(80),
|
|
[string.char(103)] = string.char(81),
|
|
[string.char(104)] = string.char(94),
|
|
[string.char(105)] = string.char(95),
|
|
[string.char(106)] = string.char(92),
|
|
[string.char(107)] = string.char(93),
|
|
[string.char(108)] = string.char(90),
|
|
[string.char(109)] = string.char(91),
|
|
[string.char(110)] = string.char(88),
|
|
[string.char(111)] = string.char(89),
|
|
[string.char(112)] = string.char(70),
|
|
[string.char(113)] = string.char(71),
|
|
[string.char(114)] = string.char(68),
|
|
[string.char(115)] = string.char(69),
|
|
[string.char(116)] = string.char(66),
|
|
[string.char(117)] = string.char(67),
|
|
[string.char(118)] = string.char(64),
|
|
[string.char(119)] = string.char(65),
|
|
[string.char(120)] = string.char(78),
|
|
[string.char(121)] = string.char(79),
|
|
[string.char(122)] = string.char(76),
|
|
[string.char(123)] = string.char(77),
|
|
[string.char(124)] = string.char(74),
|
|
[string.char(125)] = string.char(75),
|
|
[string.char(126)] = string.char(72),
|
|
[string.char(127)] = string.char(73),
|
|
[string.char(128)] = string.char(182),
|
|
[string.char(129)] = string.char(183),
|
|
[string.char(130)] = string.char(180),
|
|
[string.char(131)] = string.char(181),
|
|
[string.char(132)] = string.char(178),
|
|
[string.char(133)] = string.char(179),
|
|
[string.char(134)] = string.char(176),
|
|
[string.char(135)] = string.char(177),
|
|
[string.char(136)] = string.char(190),
|
|
[string.char(137)] = string.char(191),
|
|
[string.char(138)] = string.char(188),
|
|
[string.char(139)] = string.char(189),
|
|
[string.char(140)] = string.char(186),
|
|
[string.char(141)] = string.char(187),
|
|
[string.char(142)] = string.char(184),
|
|
[string.char(143)] = string.char(185),
|
|
[string.char(144)] = string.char(166),
|
|
[string.char(145)] = string.char(167),
|
|
[string.char(146)] = string.char(164),
|
|
[string.char(147)] = string.char(165),
|
|
[string.char(148)] = string.char(162),
|
|
[string.char(149)] = string.char(163),
|
|
[string.char(150)] = string.char(160),
|
|
[string.char(151)] = string.char(161),
|
|
[string.char(152)] = string.char(174),
|
|
[string.char(153)] = string.char(175),
|
|
[string.char(154)] = string.char(172),
|
|
[string.char(155)] = string.char(173),
|
|
[string.char(156)] = string.char(170),
|
|
[string.char(157)] = string.char(171),
|
|
[string.char(158)] = string.char(168),
|
|
[string.char(159)] = string.char(169),
|
|
[string.char(160)] = string.char(150),
|
|
[string.char(161)] = string.char(151),
|
|
[string.char(162)] = string.char(148),
|
|
[string.char(163)] = string.char(149),
|
|
[string.char(164)] = string.char(146),
|
|
[string.char(165)] = string.char(147),
|
|
[string.char(166)] = string.char(144),
|
|
[string.char(167)] = string.char(145),
|
|
[string.char(168)] = string.char(158),
|
|
[string.char(169)] = string.char(159),
|
|
[string.char(170)] = string.char(156),
|
|
[string.char(171)] = string.char(157),
|
|
[string.char(172)] = string.char(154),
|
|
[string.char(173)] = string.char(155),
|
|
[string.char(174)] = string.char(152),
|
|
[string.char(175)] = string.char(153),
|
|
[string.char(176)] = string.char(134),
|
|
[string.char(177)] = string.char(135),
|
|
[string.char(178)] = string.char(132),
|
|
[string.char(179)] = string.char(133),
|
|
[string.char(180)] = string.char(130),
|
|
[string.char(181)] = string.char(131),
|
|
[string.char(182)] = string.char(128),
|
|
[string.char(183)] = string.char(129),
|
|
[string.char(184)] = string.char(142),
|
|
[string.char(185)] = string.char(143),
|
|
[string.char(186)] = string.char(140),
|
|
[string.char(187)] = string.char(141),
|
|
[string.char(188)] = string.char(138),
|
|
[string.char(189)] = string.char(139),
|
|
[string.char(190)] = string.char(136),
|
|
[string.char(191)] = string.char(137),
|
|
[string.char(192)] = string.char(246),
|
|
[string.char(193)] = string.char(247),
|
|
[string.char(194)] = string.char(244),
|
|
[string.char(195)] = string.char(245),
|
|
[string.char(196)] = string.char(242),
|
|
[string.char(197)] = string.char(243),
|
|
[string.char(198)] = string.char(240),
|
|
[string.char(199)] = string.char(241),
|
|
[string.char(200)] = string.char(254),
|
|
[string.char(201)] = string.char(255),
|
|
[string.char(202)] = string.char(252),
|
|
[string.char(203)] = string.char(253),
|
|
[string.char(204)] = string.char(250),
|
|
[string.char(205)] = string.char(251),
|
|
[string.char(206)] = string.char(248),
|
|
[string.char(207)] = string.char(249),
|
|
[string.char(208)] = string.char(230),
|
|
[string.char(209)] = string.char(231),
|
|
[string.char(210)] = string.char(228),
|
|
[string.char(211)] = string.char(229),
|
|
[string.char(212)] = string.char(226),
|
|
[string.char(213)] = string.char(227),
|
|
[string.char(214)] = string.char(224),
|
|
[string.char(215)] = string.char(225),
|
|
[string.char(216)] = string.char(238),
|
|
[string.char(217)] = string.char(239),
|
|
[string.char(218)] = string.char(236),
|
|
[string.char(219)] = string.char(237),
|
|
[string.char(220)] = string.char(234),
|
|
[string.char(221)] = string.char(235),
|
|
[string.char(222)] = string.char(232),
|
|
[string.char(223)] = string.char(233),
|
|
[string.char(224)] = string.char(214),
|
|
[string.char(225)] = string.char(215),
|
|
[string.char(226)] = string.char(212),
|
|
[string.char(227)] = string.char(213),
|
|
[string.char(228)] = string.char(210),
|
|
[string.char(229)] = string.char(211),
|
|
[string.char(230)] = string.char(208),
|
|
[string.char(231)] = string.char(209),
|
|
[string.char(232)] = string.char(222),
|
|
[string.char(233)] = string.char(223),
|
|
[string.char(234)] = string.char(220),
|
|
[string.char(235)] = string.char(221),
|
|
[string.char(236)] = string.char(218),
|
|
[string.char(237)] = string.char(219),
|
|
[string.char(238)] = string.char(216),
|
|
[string.char(239)] = string.char(217),
|
|
[string.char(240)] = string.char(198),
|
|
[string.char(241)] = string.char(199),
|
|
[string.char(242)] = string.char(196),
|
|
[string.char(243)] = string.char(197),
|
|
[string.char(244)] = string.char(194),
|
|
[string.char(245)] = string.char(195),
|
|
[string.char(246)] = string.char(192),
|
|
[string.char(247)] = string.char(193),
|
|
[string.char(248)] = string.char(206),
|
|
[string.char(249)] = string.char(207),
|
|
[string.char(250)] = string.char(204),
|
|
[string.char(251)] = string.char(205),
|
|
[string.char(252)] = string.char(202),
|
|
[string.char(253)] = string.char(203),
|
|
[string.char(254)] = string.char(200),
|
|
[string.char(255)] = string.char(201),
|
|
}
|
|
|
|
-------------------------------------------------------------------------
|
|
|
|
function sha256.sha256(msg)
|
|
msg = preproc(msg, #msg)
|
|
local H = initH256( { })
|
|
for i = 1, #msg, 64 do digestblock(msg, i, H) end
|
|
return str2hexa(num2s(H[1], 4) .. num2s(H[2], 4) .. num2s(H[3], 4) .. num2s(H[4], 4) ..
|
|
num2s(H[5], 4) .. num2s(H[6], 4) .. num2s(H[7], 4) .. num2s(H[8], 4))
|
|
end
|
|
|
|
function sha256.sha256_binary(msg)
|
|
return hex_to_binary(sha256.sha256(msg))
|
|
end
|
|
|
|
function sha256.hmac_sha256(text, key)
|
|
assert(type(key) == 'string', "key passed to hmac_sha256 should be a string")
|
|
assert(type(text) == 'string', "text passed to hmac_sha256 should be a string")
|
|
|
|
if #key > blocksize then
|
|
key = sha256.sha256_binary(key)
|
|
end
|
|
|
|
local key_xord_with_0x36 = key:gsub('.', xor_with_0x36) .. string.rep(string.char(0x36), blocksize - #key)
|
|
local key_xord_with_0x5c = key:gsub('.', xor_with_0x5c) .. string.rep(string.char(0x5c), blocksize - #key)
|
|
|
|
return sha256.sha256(key_xord_with_0x5c .. sha256.sha256_binary(key_xord_with_0x36 .. text))
|
|
end
|
|
|
|
|
|
return sha256
|