mirror of
https://github.com/simplex-chat/simplexmq.git
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4c20ff6d00
* xftp: negotiate protocol with ALPN * add RFC * add handshake implementation * implement extended handshake * enable authentication * update rfc * Apply suggestions from code review Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com> * cleanup * discard trailing data * cleanup diff * use find * rename * refactor * add x509 tests --------- Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>
273 lines
11 KiB
Haskell
273 lines
11 KiB
Haskell
{-# LANGUAGE GADTs #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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{-# OPTIONS_GHC -Wno-orphans #-}
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module CoreTests.CryptoTests (cryptoTests) where
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import Control.Concurrent.STM
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import Control.Monad.Except
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import qualified Data.ByteString.Char8 as B
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import qualified Data.ByteString.Lazy.Char8 as LB
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import Data.Either (isRight)
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import Data.Int (Int64)
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import qualified Data.Text as T
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import Data.Text.Encoding (encodeUtf8)
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import qualified Data.Text.Lazy as LT
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import qualified Data.Text.Lazy.Encoding as LE
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import Data.Type.Equality
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import qualified Data.X509 as X
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import qualified Data.X509.CertificateStore as XS
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import qualified Data.X509.Validation as XV
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import qualified SMPClient
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import qualified Simplex.Messaging.Crypto as C
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import qualified Simplex.Messaging.Crypto.Lazy as LC
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import Simplex.Messaging.Crypto.SNTRUP761.Bindings
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import Simplex.Messaging.Transport.Client
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import Test.Hspec
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import Test.Hspec.QuickCheck (modifyMaxSuccess)
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import Test.QuickCheck
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cryptoTests :: Spec
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cryptoTests = do
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modifyMaxSuccess (const 10000) . describe "padding / unpadding" $ do
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it "should pad / unpad string" . property $ \(s, paddedLen) ->
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let b = encodeUtf8 $ T.pack s
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len = B.length b
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padded = C.pad b paddedLen
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in if len < 2 ^ (16 :: Int) - 3 && len <= paddedLen - 2
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then (padded >>= C.unPad) == Right b
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else padded == Left C.CryptoLargeMsgError
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it "pad should fail on large string" $ do
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C.pad "abc" 5 `shouldBe` Right "\000\003abc"
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C.pad "abc" 4 `shouldBe` Left C.CryptoLargeMsgError
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let s = B.replicate 65533 'a'
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(C.pad s 65535 >>= C.unPad) `shouldBe` Right s
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C.pad (B.replicate 65534 'a') 65536 `shouldBe` Left C.CryptoLargeMsgError
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C.pad (B.replicate 65535 'a') 65537 `shouldBe` Left C.CryptoLargeMsgError
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it "unpad should fail on invalid string" $ do
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C.unPad "\000\000" `shouldBe` Right ""
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C.unPad "\000" `shouldBe` Left C.CryptoInvalidMsgError
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C.unPad "" `shouldBe` Left C.CryptoInvalidMsgError
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it "unpad should fail on shorter string" $ do
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C.unPad "\000\003abc" `shouldBe` Right "abc"
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C.unPad "\000\003ab" `shouldBe` Left C.CryptoInvalidMsgError
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modifyMaxSuccess (const 10000) . describe "lazy padding / unpadding" $ do
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it "should pad / unpad lazy bytestrings" . property $ \(s, paddedLen) ->
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let b = LE.encodeUtf8 $ LT.pack s
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len = LB.length b
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padded = LC.pad b len paddedLen
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in if len <= paddedLen - 8
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then (padded >>= LC.unPad) == Right b
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else padded == Left C.CryptoLargeMsgError
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it "pad should support large string" $ do
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LC.pad "abc" 3 11 `shouldBe` Right "\000\000\000\000\000\000\000\003abc"
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LC.pad "abc" 3 10 `shouldBe` Left C.CryptoLargeMsgError
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let s = LB.replicate 100000 'a'
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(LC.pad s 100000 100100 >>= LC.unPad) `shouldBe` Right s
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(LC.pad s 100000 100008 >>= LC.unPad) `shouldBe` Right s
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(LC.pad s 100000 100007 >>= LC.unPad) `shouldBe` Left C.CryptoLargeMsgError
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it "pad should truncate string if a shorter length is passed and unpad incorrectly when longer length is passed" $ do
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let s = LB.replicate 10000 'a'
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(LC.pad s 9000 10100 >>= LC.unPad) `shouldBe` Right (LB.take 9000 s)
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(LC.pad s 11000 11100 >>= LC.unPad) `shouldBe` Right (s <> LB.replicate 92 '#') -- 92 = pad size, it is not truncated in this case
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it "unpad should fail on invalid string" $ do
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LC.unPad "\000\000\000\000\000\000\000\000" `shouldBe` Right ""
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LC.unPad "\000\000" `shouldBe` Left C.CryptoInvalidMsgError
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LC.unPad "" `shouldBe` Left C.CryptoInvalidMsgError
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it "unpad won't fail on shorter string" $ do
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LC.unPad "\000\000\000\000\000\000\000\003abc" `shouldBe` Right "abc"
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LC.unPad "\000\000\000\000\000\000\000\003ab" `shouldBe` Right "ab"
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it "should pad / unpad file" testPadUnpadFile
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describe "Ed signatures" $ do
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describe "Ed25519" $ testSignature C.SEd25519
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describe "Ed448" $ testSignature C.SEd448
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describe "DH X25519 + cryptobox" testDHCryptoBox
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describe "secretbox" testSecretBox
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describe "lazy secretbox" $ do
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testLazySecretBox
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testLazySecretBoxFile
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testLazySecretBoxTailTag
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testLazySecretBoxFileTailTag
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describe "AES GCM" $ do
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testAESGCM
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describe "X509 key encoding" $ do
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describe "Ed25519" $ testEncoding C.SEd25519
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describe "Ed448" $ testEncoding C.SEd448
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describe "X25519" $ testEncoding C.SX25519
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describe "X448" $ testEncoding C.SX448
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describe "X509 chains" $ do
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it "should validate certificates" testValidateX509
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describe "sntrup761" $
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it "should enc/dec key" testSNTRUP761
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instance Eq C.APublicKey where
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C.APublicKey a k == C.APublicKey a' k' = case testEquality a a' of
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Just Refl -> k == k'
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Nothing -> False
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instance Eq C.APrivateKey where
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C.APrivateKey a k == C.APrivateKey a' k' = case testEquality a a' of
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Just Refl -> k == k'
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Nothing -> False
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testPadUnpadFile :: IO ()
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testPadUnpadFile = do
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let f = "tests/tmp/testpad"
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paddedLen = 1024 * 1024
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len = 1000000
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s = LB.replicate len 'a'
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Right s' <- pure $ LC.pad s len paddedLen
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LB.writeFile (f <> ".padded") s'
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Right s'' <- LC.unPad <$> LB.readFile (f <> ".padded")
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s'' `shouldBe` s
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testSignature :: (C.AlgorithmI a, C.SignatureAlgorithm a) => C.SAlgorithm a -> Spec
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testSignature alg = it "should sign / verify string" . ioProperty $ do
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g <- C.newRandom
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(k, pk) <- atomically $ C.generateSignatureKeyPair alg g
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pure $ \s -> let b = encodeUtf8 $ T.pack s in C.verify k (C.sign pk b) b
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testDHCryptoBox :: Spec
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testDHCryptoBox = it "should encrypt / decrypt string with asymmetric DH keys" . ioProperty $ do
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g <- C.newRandom
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(sk, spk) <- atomically $ C.generateKeyPair g
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(rk, rpk) <- atomically $ C.generateKeyPair g
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nonce <- atomically $ C.randomCbNonce g
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pure $ \(s, pad) ->
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let b = encodeUtf8 $ T.pack s
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paddedLen = B.length b + abs pad + 2
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cipher = C.cbEncrypt (C.dh' rk spk) nonce b paddedLen
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plain = C.cbDecrypt (C.dh' sk rpk) nonce =<< cipher
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in isRight cipher && cipher /= plain && Right b == plain
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testSecretBox :: Spec
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testSecretBox = it "should encrypt / decrypt string with a random symmetric key" . ioProperty $ do
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g <- C.newRandom
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k <- atomically $ C.randomSbKey g
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nonce <- atomically $ C.randomCbNonce g
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pure $ \(s, pad) ->
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let b = encodeUtf8 $ T.pack s
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pad' = min (abs pad) 100000
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paddedLen = B.length b + pad' + 2
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cipher = C.sbEncrypt k nonce b paddedLen
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plain = C.sbDecrypt k nonce =<< cipher
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in isRight cipher && cipher /= plain && Right b == plain
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testLazySecretBox :: Spec
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testLazySecretBox = it "should lazily encrypt / decrypt string with a random symmetric key" . ioProperty $ do
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g <- C.newRandom
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k <- atomically $ C.randomSbKey g
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nonce <- atomically $ C.randomCbNonce g
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pure $ \(s, pad) ->
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let b = LE.encodeUtf8 $ LT.pack s
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len = LB.length b
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pad' = min (abs pad) 100000
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paddedLen = len + pad' + 8
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cipher = LC.sbEncrypt k nonce b len paddedLen
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plain = LC.sbDecrypt k nonce =<< cipher
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in isRight cipher && cipher /= plain && Right b == plain
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testLazySecretBoxFile :: Spec
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testLazySecretBoxFile = it "should lazily encrypt / decrypt file with a random symmetric key" $ do
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g <- C.newRandom
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k <- atomically $ C.randomSbKey g
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nonce <- atomically $ C.randomCbNonce g
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let f = "tests/tmp/testsecretbox"
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paddedLen = 4 * 1024 * 1024
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len = 4 * 1000 * 1000 :: Int64
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s = LC.fastReplicate len 'a'
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Right s' <- pure $ LC.sbEncrypt k nonce s len paddedLen
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LB.writeFile (f <> ".encrypted") s'
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Right s'' <- LC.sbDecrypt k nonce <$> LB.readFile (f <> ".encrypted")
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s'' `shouldBe` s
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testLazySecretBoxTailTag :: Spec
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testLazySecretBoxTailTag = it "should lazily encrypt / decrypt string with a random symmetric key (tail tag)" . ioProperty $ do
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g <- C.newRandom
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k <- atomically $ C.randomSbKey g
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nonce <- atomically $ C.randomCbNonce g
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pure $ \(s, pad) ->
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let b = LE.encodeUtf8 $ LT.pack s
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len = LB.length b
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pad' = min (abs pad) 100000
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paddedLen = len + pad' + 8
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cipher = LC.sbEncryptTailTag k nonce b len paddedLen
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plain = LC.sbDecryptTailTag k nonce paddedLen =<< cipher
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in isRight cipher && cipher /= (snd <$> plain) && Right (True, b) == plain
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testLazySecretBoxFileTailTag :: Spec
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testLazySecretBoxFileTailTag = it "should lazily encrypt / decrypt file with a random symmetric key (tail tag)" $ do
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g <- C.newRandom
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k <- atomically $ C.randomSbKey g
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nonce <- atomically $ C.randomCbNonce g
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let f = "tests/tmp/testsecretbox"
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paddedLen = 4 * 1024 * 1024
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len = 4 * 1000 * 1000 :: Int64
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s = LC.fastReplicate len 'a'
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Right s' <- pure $ LC.sbEncryptTailTag k nonce s len paddedLen
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LB.writeFile (f <> ".encrypted") s'
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Right (auth, s'') <- LC.sbDecryptTailTag k nonce paddedLen <$> LB.readFile (f <> ".encrypted")
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s'' `shouldBe` s
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auth `shouldBe` True
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testAESGCM :: Spec
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testAESGCM = it "should encrypt / decrypt string with a random symmetric key" $ do
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g <- C.newRandom
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k <- atomically $ C.randomAesKey g
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iv <- atomically $ C.randomGCMIV g
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s <- atomically $ C.randomBytes 100 g
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Right (tag, cipher) <- runExceptT $ C.encryptAESNoPad k iv s
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Right plain <- runExceptT $ C.decryptAESNoPad k iv cipher tag
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cipher `shouldNotBe` plain
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s `shouldBe` plain
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testEncoding :: C.AlgorithmI a => C.SAlgorithm a -> Spec
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testEncoding alg = it "should encode / decode key" . ioProperty $ do
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g <- C.newRandom
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(k, pk) <- atomically $ C.generateAKeyPair alg g
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pure $ \(_ :: Int) ->
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C.decodePubKey (C.encodePubKey k) == Right k
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&& C.decodePrivKey (C.encodePrivKey pk) == Right pk
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testValidateX509 :: IO ()
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testValidateX509 = do
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let checkChain = validateCertificateChain SMPClient.testKeyHash "localhost" "5223" . X.CertificateChain
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checkChain [] `shouldReturn` [XV.EmptyChain]
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caCreds <- XS.readCertificates "tests/fixtures/ca.crt"
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caCreds `shouldNotBe` []
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let ca = head caCreds
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serverCreds <- XS.readCertificates "tests/fixtures/server.crt"
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serverCreds `shouldNotBe` []
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let server = head serverCreds
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checkChain [server, ca] `shouldReturn` []
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ca2Creds <- XS.readCertificates "tests/fixtures/ca2.crt"
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ca2Creds `shouldNotBe` []
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let ca2 = head ca2Creds
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-- signed by another CA
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server2Creds <- XS.readCertificates "tests/fixtures/server2.crt"
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server2Creds `shouldNotBe` []
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let server2 = head server2Creds
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checkChain [server2, ca2] `shouldReturn` [XV.UnknownCA]
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-- messed up key rotation or other configuration problems
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checkChain [server2, ca] `shouldReturn` [XV.InvalidSignature XV.SignatureInvalid]
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-- self-signed, unrelated to CA
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ssCreds <- XS.readCertificates "tests/fixtures/ss.crt"
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ssCreds `shouldNotBe` []
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let ss = head ssCreds
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checkChain [ss, ca] `shouldReturn` [XV.SelfSigned]
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testSNTRUP761 :: IO ()
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testSNTRUP761 = do
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drg <- C.newRandom
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(pk, sk) <- sntrup761Keypair drg
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(c, KEMSharedKey k) <- sntrup761Enc drg pk
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KEMSharedKey k' <- sntrup761Dec c sk
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k' `shouldBe` k
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