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# File 'lib/blowfish.rb', line 3
def setup_blowfish()
@sBoxes = Array.new(4) { |i| INITIALSBOXES[i].clone }
@pArray = INITIALPARRAY.clone
keypos = 0
0.upto(17) { |i|
data = 0
4.times {
data = ((data << 8) | @key[keypos].ord) % ULONG
keypos = (keypos.next) % @key.length
}
@pArray[i] = (@pArray[i] ^ data) % ULONG
}
l = 0
r = 0
0.step(17, 2) { |i|
l, r = encrypt_pair(l, r)
@pArray[i] = l
@pArray[i+1] = r
}
0.upto(3) { |i|
0.step(255, 2) { |j|
l, r = encrypt_pair(l, r)
@sBoxes[i][j] = l
@sBoxes[i][j+1] = r
}
}
end
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