peyotls

Pretty Easy YOshikuni-made TLS library https://github.com/YoshikuniJujo/peyotls/wiki

Latest on Hackage:0.1.6.10

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.

BSD3 licensed and maintained by Yoshikuni Jujo

Currently implement the TLS1.2 protocol (RFC 5246, RFC 4492) only, and support the following cipher suites.

  • TLS_RSA_WITH_AES_128_CBC_SHA

  • TLS_RSA_WITH_AES_128_CBC_SHA256

  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA

  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA256

  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA

  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256

  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA

  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256

implement the following curves

  • SEC p256r1

And support client certificate with the following algorithms.

  • RSA with SHA256

  • ECDSA with SHA256

And support secure renegotiation (RFC 5746)

Currently not implement the following features.

  • session resumption (RFC 5077)

  • curves other than SEC p256r1

Server sample

  • file: examples/simpleServer.hs

localhost.key: key file

-----BEGIN RSA PRIVATE KEY-----
...
-----END RSA PRIVATE KEY-----

localhost.crt: certificate file

-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----

examples/simpleServer.hs

extensions

  • OverloadedStrings

  • PackageImports

 import Control.Applicative
 import Control.Monad
 import "monads-tf" Control.Monad.State
 import Control.Concurrent
 import Data.HandleLike
 import Network
 import Network.PeyoTLS.Server
 import Network.PeyoTLS.ReadFile
 import "crypto-random" Crypto.Random

 import qualified Data.ByteString as BS
 import qualified Data.ByteString.Char8 as BSC

 main :: IO ()
 main = do
	k <- readKey "localhost.key"
	c <- readCertificateChain ["localhost.crt"]
	g0 <- cprgCreate <$> createEntropyPool :: IO SystemRNG
	soc <- listenOn $ PortNumber 443
	void . (`runStateT` g0) . forever $ do
		(h, _, _) <- liftIO $ accept soc
		g <- StateT $ return . cprgFork
		liftIO . forkIO . (`run` g) $ do
			p <- open h ["TLS_RSA_WITH_AES_128_CBC_SHA"] [(k, c)]
				Nothing
			doUntil BS.null (hlGetLine p) >>= liftIO . mapM_ BSC.putStrLn
			hlPut p $ BS.concat [
				"HTTP/1.1 200 OK\r\n",
				"Transfer-Encoding: chunked\r\n",
				"Content-Type: text/plain\r\n\r\n",
				"5\r\nHello0\r\n\r\n" ]
			hlClose p

 doUntil :: Monad m => (a -> Bool) -> m a -> m [a]
 doUntil p rd = rd >>= \x ->
	(if p x then return . (: []) else (`liftM` doUntil p rd) . (:)) x

Client sample (only show HTTP header)

  • file: examples/simpleClient.hs

cacert.pem: self-signed root certificate to validate server

-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----

examples/simpleClient.hs

extensions

  • OverloadedStrings

  • PackageImports

 import Control.Applicative
 import Control.Monad
 import "monads-tf" Control.Monad.Trans
 import Data.HandleLike
 import Network
 import Network.PeyoTLS.ReadFile
 import Network.PeyoTLS.Client
 import "crypto-random" Crypto.Random

 import qualified Data.ByteString.Char8 as BSC

 main :: IO ()
 main = do
 	ca <- readCertificateStore ["cacert.pem"]
 	h <- connectTo "localhost" $ PortNumber 443
 	g <- cprgCreate <$> createEntropyPool :: IO SystemRNG
 	(`run` g) $ do
 		p <- open' h "localhost" ["TLS_RSA_WITH_AES_128_CBC_SHA"] [] ca
		nms <- getNames p
 		hlPut p "GET / HTTP/1.1 \r\n"
 		hlPut p "Host: localhost\r\n\r\n"
 		doUntil BSC.null (hlGetLine p) >>= liftIO . mapM_ BSC.putStrLn
 		hlClose p

 doUntil :: Monad m => (a -> Bool) -> m a -> m [a]
 doUntil p rd = rd >>= \x ->
 	(if p x then return . (: []) else (`liftM` doUntil p rd) . (:)) x

Client certificate server

  • file: examples/clcertServer.hs

% diff examples/simpleServer.hs examples/clcertServer.hs
19a20
>	ca <- readCertificateStore ["cacert.pem"]
27c28
<				Nothing
---
>				$ Just ca

Client certificate client (RSA certificate)

  • file: examples/clcertClient.hs

% diff examples/simpleClient.hs examples/clcertClient.hs
15a16,17
>	rk <- readKey "client_rsa.key"
>	rc <- readCertificateChain ["client_rsa.crt"]
20c22
<		p <- open' h "localhost" ["TLS_RSA_WITH_AES_128_CBC_SHA"] [] ca
---
>		p <- open' h "localhost" ["TLS_RSA_WITH_AES_128_CBC_SHA"] [(rk, rc)] ca

Client certificate client (ECDSA or RSA certificate)

  • file: examples/clcertEcdsaClient.hs

% diff examples/clcertClient.hs examples/clcertEcdsaClient.hs
17a18,19
>	ek <- readKey "client_ecdsa.key"
>	ec <- readCertificateChain ["client_ecdsa.crt"]
22c24
<		p <- open' h "localhost" ["TLS_RSA_WITH_AES_128_CBC_SHA"] [(rk, rc)] ca
---
>		p <- open' h "localhost" ["TLS_RSA_WITH_AES_128_CBC_SHA"] [(ek, ec), (rk, rc)] ca

ECC server (use ECC or RSA depending on client)

  • file: examples/eccServer.hs

% diff examples/simpleServer.hs examples/eccServer.hs
15a16,26
> cipherSuites :: [CipherSuite]
> cipherSuites = [
>       "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
>       "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
>       "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
>       "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
>       "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256",
>       "TLS_DHE_RSA_WITH_AES_128_CBC_SHA",
>       "TLS_RSA_WITH_AES_128_CBC_SHA256",
>       "TLS_RSA_WITH_AES_128_CBC_SHA" ]
>
18,19c29,32
<       k <- readKey "localhost.key"
<       c <- readCertificateChain ["localhost.crt"]
---
>       rk <- readKey "localhost.key"
>       rc <- readCertificateChain ["localhost.crt"]
>       ek <- readKey "localhost_ecdsa.key"
>       ec <- readCertificateChain ["localhost_ecdsa.crt"]
26c39
<                       p <- open h ["TLS_RSA_WITH_AES_128_CBC_SHA"] [(k, c)]
---
>                       p <- open h cipherSuites [(rk, rc), (ek, ec)]

ECC client (use ECC or RSA depending on server)

  • file: examples/eccClient.hs

% diff examples/simpleClient.hs examples/eccClient.hs
13a14,24
> cipherSuites :: [CipherSuite]
> cipherSuites = [
>       "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
>       "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
>       "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
>       "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
>       "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256",
>       "TLS_DHE_RSA_WITH_AES_128_CBC_SHA",
>       "TLS_RSA_WITH_AES_128_CBC_SHA256",
>       "TLS_RSA_WITH_AES_128_CBC_SHA" ]
>
20c31
<               p <- open' h "localhost" ["TLS_RSA_WITH_AES_128_CBC_SHA"] [] ca
---
>               p <- open' h "localhost" cipherSuites [] ca
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