local rc4 = require "rc4.c"

local function gen_key(t)
    local len = #t
    for i = 1, len do
        local b = t[i]
        local c = string.char(b)
        t[i] = c
    end
    local key = table.concat(t)
    return rc4.rc4(key)
end


local decode_key = gen_key {
    215,100,200,204,233,50,85,196,71,141,
    122,160,93,131,243,234,162,183,36,155,
    4,62,35,205,40,102,33,27,255,55,
    131,214,156,75,163,134,126,249,74,197,
    134,197,102,228,72,90,206,235,17,243,
    134,22,49,169,227,89,16,5,117,16,
    60,248,230,217,68,138,96,194,131,170,
    136,10,112,238,238,184,72,189,163,90,
    176,42,112,225,212,84,58,228,89,175,
    244,150,168,219,112,236,101,208,175,233,
    123,55,243,235,37,225,164,110,158,71,
    201,78,114,57,48,70,142,106,43,232,
    26,32,126,194,252,239,175,98,191,94,
    75,59,149,62,39,187,32,203,42,190,
    19,243,13,133,45,61,204,187,168,247,
    163,194,23,34,133,20,17,52,118,209,
    146,193,13,40,255,52,227,32,255,13,
    222,18,1,236,152,46,41,100,233,209,
    91,141,148,115,175,25,135,193,77,254,
    147,224,191,161,9,191,213,236,223,212,
    250,190,231,251,170,127,41,212,227,19,
    166,63,161,58,179,81,84,59,18,162,
    57,166,130,248,71,139,184,28,120,151,
    241,115,86,217,111,0,88,153,213,59,
    172,123,123,78,182,46,159,10,105,178,
    172,163,88,47,155,160,
}


local function decode_data(data)
    local o =  decode_key:crypt(data)
    decode_key:reset()
    return o
end

for i = 1, 10 do
    print(decode_data("asdf"))
end