256 lines
11 KiB
Nim
256 lines
11 KiB
Nim
#
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# Ethereum P2P
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# (c) Copyright 2018
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# Status Research & Development GmbH
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#
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# See the file "LICENSE", included in this
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# distribution, for details about the copyright.
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#
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import unittest
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import eth_keys, nimcrypto/[utils, sysrand, keccak]
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import eth_p2p/[auth, rlpxcrypt]
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const data = [
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("initiator_private_key",
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"5e173f6ac3c669587538e7727cf19b782a4f2fda07c1eaa662c593e5e85e3051"),
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("receiver_private_key",
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"c45f950382d542169ea207959ee0220ec1491755abe405cd7498d6b16adb6df8"),
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("initiator_ephemeral_private_key",
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"19c2185f4f40634926ebed3af09070ca9e029f2edd5fae6253074896205f5f6c"),
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("receiver_ephemeral_private_key",
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"d25688cf0ab10afa1a0e2dba7853ed5f1e5bf1c631757ed4e103b593ff3f5620"),
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("auth_plaintext",
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"""884c36f7ae6b406637c1f61b2f57e1d2cab813d24c6559aaf843c3f48962f32f
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46662c066d39669b7b2e3ba14781477417600e7728399278b1b5d801a519aa57
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0034fdb5419558137e0d44cd13d319afe5629eeccb47fd9dfe55cc6089426e46
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cc762dd8a0636e07a54b31169eba0c7a20a1ac1ef68596f1f283b5c676bae406
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4abfcce24799d09f67e392632d3ffdc12e3d6430dcb0ea19c318343ffa7aae74
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d4cd26fecb93657d1cd9e9eaf4f8be720b56dd1d39f190c4e1c6b7ec66f077bb
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1100"""),
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("authresp_plaintext",
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"""802b052f8b066640bba94a4fc39d63815c377fced6fcb84d27f791c9921ddf3e
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9bf0108e298f490812847109cbd778fae393e80323fd643209841a3b7f110397
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f37ec61d84cea03dcc5e8385db93248584e8af4b4d1c832d8c7453c0089687a7
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00"""),
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("auth_ciphertext",
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"""04a0274c5951e32132e7f088c9bdfdc76c9d91f0dc6078e848f8e3361193dbdc
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43b94351ea3d89e4ff33ddcefbc80070498824857f499656c4f79bbd97b6c51a
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514251d69fd1785ef8764bd1d262a883f780964cce6a14ff206daf1206aa073a
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2d35ce2697ebf3514225bef186631b2fd2316a4b7bcdefec8d75a1025ba2c540
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4a34e7795e1dd4bc01c6113ece07b0df13b69d3ba654a36e35e69ff9d482d88d
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2f0228e7d96fe11dccbb465a1831c7d4ad3a026924b182fc2bdfe016a6944312
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021da5cc459713b13b86a686cf34d6fe6615020e4acf26bf0d5b7579ba813e77
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23eb95b3cef9942f01a58bd61baee7c9bdd438956b426a4ffe238e61746a8c93
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d5e10680617c82e48d706ac4953f5e1c4c4f7d013c87d34a06626f498f34576d
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c017fdd3d581e83cfd26cf125b6d2bda1f1d56"""),
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("authresp_ciphertext",
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"""049934a7b2d7f9af8fd9db941d9da281ac9381b5740e1f64f7092f3588d4f87f
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5ce55191a6653e5e80c1c5dd538169aa123e70dc6ffc5af1827e546c0e958e42
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dad355bcc1fcb9cdf2cf47ff524d2ad98cbf275e661bf4cf00960e74b5956b79
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9771334f426df007350b46049adb21a6e78ab1408d5e6ccde6fb5e69f0f4c92b
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b9c725c02f99fa72b9cdc8dd53cff089e0e73317f61cc5abf6152513cb7d833f
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09d2851603919bf0fbe44d79a09245c6e8338eb502083dc84b846f2fee1cc310
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d2cc8b1b9334728f97220bb799376233e113"""),
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("ecdhe_shared_secret",
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"e3f407f83fc012470c26a93fdff534100f2c6f736439ce0ca90e9914f7d1c381"),
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("initiator_nonce",
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"cd26fecb93657d1cd9e9eaf4f8be720b56dd1d39f190c4e1c6b7ec66f077bb11"),
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("receiver_nonce",
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"f37ec61d84cea03dcc5e8385db93248584e8af4b4d1c832d8c7453c0089687a7"),
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("aes_secret",
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"c0458fa97a5230830e05f4f20b7c755c1d4e54b1ce5cf43260bb191eef4e418d"),
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("mac_secret",
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"48c938884d5067a1598272fcddaa4b833cd5e7d92e8228c0ecdfabbe68aef7f1"),
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("token",
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"3f9ec2592d1554852b1f54d228f042ed0a9310ea86d038dc2b401ba8cd7fdac4"),
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("initial_egress_MAC",
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"09771e93b1a6109e97074cbe2d2b0cf3d3878efafe68f53c41bb60c0ec49097e"),
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("initial_ingress_MAC",
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"75823d96e23136c89666ee025fb21a432be906512b3dd4a3049e898adb433847"),
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("initiator_hello_packet",
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"""6ef23fcf1cec7312df623f9ae701e63b550cdb8517fefd8dd398fc2acd1d935e
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6e0434a2b96769078477637347b7b01924fff9ff1c06df2f804df3b0402bbb9f
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87365b3c6856b45e1e2b6470986813c3816a71bff9d69dd297a5dbd935ab578f
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6e5d7e93e4506a44f307c332d95e8a4b102585fd8ef9fc9e3e055537a5cec2e9"""),
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("receiver_hello_packet",
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"""6ef23fcf1cec7312df623f9ae701e63be36a1cdd1b19179146019984f3625d4a
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6e0434a2b96769050577657247b7b02bc6c314470eca7e3ef650b98c83e9d7dd
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4830b3f718ff562349aead2530a8d28a8484604f92e5fced2c6183f304344ab0
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e7c301a0c05559f4c25db65e36820b4b909a226171a60ac6cb7beea09376d6d8""")
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]
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proc testValue(s: string): string =
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for item in data:
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if item[0] == s:
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result = item[1]
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break
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suite "Ethereum RLPx encryption/decryption test suite":
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proc newTestHandshake(flags: set[HandshakeFlag]): Handshake =
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result = newHandshake(flags)
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if Initiator in flags:
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result.host.seckey = initPrivateKey(testValue("initiator_private_key"))
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result.host.pubkey = result.host.seckey.getPublicKey()
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let epki = testValue("initiator_ephemeral_private_key")
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result.ephemeral.seckey = initPrivateKey(epki)
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result.ephemeral.pubkey = result.ephemeral.seckey.getPublicKey()
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let nonce = fromHex(stripSpaces(testValue("initiator_nonce")))
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result.initiatorNonce[0..^1] = nonce[0..^1]
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elif Responder in flags:
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result.host.seckey = initPrivateKey(testValue("receiver_private_key"))
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result.host.pubkey = result.host.seckey.getPublicKey()
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let epkr = testValue("receiver_ephemeral_private_key")
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result.ephemeral.seckey = initPrivateKey(epkr)
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result.ephemeral.pubkey = result.ephemeral.seckey.getPublicKey()
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let nonce = fromHex(stripSpaces(testValue("receiver_nonce")))
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result.responderNonce[0..^1] = nonce[0..^1]
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test "Encrypt/Decrypt Hello packet test vectors":
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var initiator = newTestHandshake({Initiator})
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var responder = newTestHandshake({Responder})
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var authm = fromHex(stripSpaces(testValue("auth_ciphertext")))
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var ackm = fromHex(stripSpaces(testValue("authresp_ciphertext")))
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var csecInitiator: ConnectionSecret
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var csecResponder: ConnectionSecret
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var stateInitiator0, stateInitiator1: SecretState
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var stateResponder0, stateResponder1: SecretState
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check:
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responder.decodeAuthMessage(authm) == AuthStatus.Success
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initiator.decodeAckMessage(ackm) == AuthStatus.Success
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initiator.getSecrets(authm, ackm, csecInitiator) == AuthStatus.Success
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responder.getSecrets(authm, ackm, csecResponder) == AuthStatus.Success
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initSecretState(csecInitiator, stateInitiator0)
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initSecretState(csecResponder, stateResponder0)
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initSecretState(csecInitiator, stateInitiator1)
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initSecretState(csecResponder, stateResponder1)
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var packet0 = testValue("initiator_hello_packet")
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var initiatorHello = fromHex(stripSpaces(packet0))
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var packet1 = testValue("receiver_hello_packet")
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var responderHello = fromHex(stripSpaces(packet1))
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var header: array[RlpHeaderLength, byte]
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block:
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check stateResponder0.decryptHeader(toOpenArray(initiatorHello, 0, 31),
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header) == RlpxStatus.Success
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let bodysize = getBodySize(header)
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check bodysize == 79
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# we need body size to be rounded to 16 bytes boundary to properly
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# encrypt/decrypt it.
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var body = newSeq[byte](decryptedLength(bodysize))
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var decrsize = 0
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check:
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stateResponder0.decryptBody(
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toOpenArray(initiatorHello, 32, len(initiatorHello) - 1),
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getBodySize(header), body, decrsize) == RlpxStatus.Success
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decrsize == 79
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body.setLen(decrsize)
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var hello = newSeq[byte](encryptedLength(bodysize))
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check:
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stateInitiator1.encrypt(header, body, hello) == RlpxStatus.Success
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hello == initiatorHello
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block:
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check stateInitiator0.decryptHeader(toOpenArray(responderHello, 0, 31),
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header) == RlpxStatus.Success
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let bodysize = getBodySize(header)
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check bodysize == 79
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# we need body size to be rounded to 16 bytes boundary to properly
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# encrypt/decrypt it.
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var body = newSeq[byte](decryptedLength(bodysize))
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var decrsize = 0
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check:
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stateInitiator0.decryptBody(
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toOpenArray(responderHello, 32, len(initiatorHello) - 1),
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getBodySize(header), body, decrsize) == RlpxStatus.Success
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decrsize == 79
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body.setLen(decrsize)
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var hello = newSeq[byte](encryptedLength(bodysize))
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check:
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stateResponder1.encrypt(header, body, hello) == RlpxStatus.Success
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hello == responderHello
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test "Continuous stream of different lengths (1000 times)":
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var initiator = newTestHandshake({Initiator})
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var responder = newTestHandshake({Responder})
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var m0 = newSeq[byte](initiator.authSize())
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var csecInitiator: ConnectionSecret
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var csecResponder: ConnectionSecret
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var k0 = 0
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var k1 = 0
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check initiator.authMessage(responder.host.pubkey,
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m0, k0) == AuthStatus.Success
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m0.setLen(k0)
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check responder.decodeAuthMessage(m0) == AuthStatus.Success
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var m1 = newSeq[byte](responder.ackSize())
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check responder.ackMessage(m1, k1) == AuthStatus.Success
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m1.setLen(k1)
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check initiator.decodeAckMessage(m1) == AuthStatus.Success
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check:
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initiator.getSecrets(m0, m1, csecInitiator) == AuthStatus.Success
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responder.getSecrets(m0, m1, csecResponder) == AuthStatus.Success
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var stateInitiator: SecretState
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var stateResponder: SecretState
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var iheader, rheader: array[16, byte]
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initSecretState(csecInitiator, stateInitiator)
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initSecretState(csecResponder, stateResponder)
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burnMem(iheader)
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burnMem(rheader)
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for i in 1..1000:
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# initiator -> responder
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block:
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var ibody = newSeq[byte](i)
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var encrypted = newSeq[byte](encryptedLength(len(ibody)))
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iheader[0] = byte((len(ibody) shr 16) and 0xFF)
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iheader[1] = byte((len(ibody) shr 8) and 0xFF)
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iheader[2] = byte(len(ibody) and 0xFF)
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check:
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randomBytes(ibody) == len(ibody)
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stateInitiator.encrypt(iheader, ibody,
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encrypted) == RlpxStatus.Success
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stateResponder.decryptHeader(toOpenArray(encrypted, 0, 31),
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rheader) == RlpxStatus.Success
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var length = getBodySize(rheader)
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check length == len(ibody)
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var rbody = newSeq[byte](decryptedLength(length))
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var decrsize = 0
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check:
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stateResponder.decryptBody(
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toOpenArray(encrypted, 32, len(encrypted) - 1),
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length, rbody, decrsize) == RlpxStatus.Success
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decrsize == length
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rbody.setLen(decrsize)
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check:
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iheader == rheader
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ibody == rbody
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burnMem(iheader)
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burnMem(rheader)
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# responder -> initiator
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block:
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var ibody = newSeq[byte](i * 3)
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var encrypted = newSeq[byte](encryptedLength(len(ibody)))
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iheader[0] = byte((len(ibody) shr 16) and 0xFF)
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iheader[1] = byte((len(ibody) shr 8) and 0xFF)
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iheader[2] = byte(len(ibody) and 0xFF)
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check:
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randomBytes(ibody) == len(ibody)
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stateResponder.encrypt(iheader, ibody,
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encrypted) == RlpxStatus.Success
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stateInitiator.decryptHeader(toOpenArray(encrypted, 0, 31),
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rheader) == RlpxStatus.Success
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var length = getBodySize(rheader)
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check length == len(ibody)
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var rbody = newSeq[byte](decryptedLength(length))
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var decrsize = 0
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check:
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stateInitiator.decryptBody(
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toOpenArray(encrypted, 32, len(encrypted) - 1),
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length, rbody, decrsize) == RlpxStatus.Success
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decrsize == length
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rbody.setLen(length)
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check:
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iheader == rheader
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ibody == rbody
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burnMem(iheader)
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burnMem(rheader)
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