37 lines
983 B
Haskell
37 lines
983 B
Haskell
module FactorizationUI (run) where
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import Utils (askChoice, askNumber)
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import Factorization (fermatFactorization, pollardPminus1)
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run :: IO ()
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run = do
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putStrLn "Factorization"
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putStrLn "1) Fermat factorization"
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putStrLn "2) Pollard p-1"
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choice <- askChoice 2
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case choice of
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1 -> fermatUI
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2 -> pollardUI
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_ -> error "Impossible"
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fermatUI :: IO ()
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fermatUI = do
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n <- askNumber "Enter an integer n > 1:"
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let (p, q) = fermatFactorization n
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putStrLn ("n = " ++ show n)
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putStrLn ("p = " ++ show p)
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putStrLn ("q = " ++ show q)
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pollardUI :: IO ()
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pollardUI = do
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n <- askNumber "Enter an integer n > 1:"
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b <- askNumber "Enter the bound B:"
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case pollardPminus1 n b of
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Just factor -> do
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putStrLn ("Found factor: " ++ show factor)
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putStrLn ("Other factor: " ++ show (n `div` factor))
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Nothing ->
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putStrLn "Failed to find a factor (try a different B or method)."
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