mirror of https://github.com/waku-org/nwaku.git
707 lines
22 KiB
Nim
707 lines
22 KiB
Nim
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{.used.}
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import
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std/options, sequtils, times,
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testutils/unittests, chronos, chronicles, stint, web3,
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stew/byteutils, stew/shims/net as stewNet,
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libp2p/crypto/crypto,
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../../waku/v2/protocol/waku_rln_relay/[rln, waku_rln_relay_utils,
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waku_rln_relay_types],
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../../waku/v2/node/wakunode2,
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../test_helpers,
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./test_utils
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const RLNRELAY_PUBSUB_TOPIC = "waku/2/rlnrelay/proto"
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const RLNRELAY_CONTENT_TOPIC = "waku/2/rlnrelay/proto"
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procSuite "Waku rln relay":
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asyncTest "mount waku-rln-relay in the off-chain mode":
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let
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nodeKey = crypto.PrivateKey.random(Secp256k1, rng[])[]
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node = WakuNode.new(nodeKey, ValidIpAddress.init("0.0.0.0"),
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Port(60000))
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await node.start()
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# preparing inputs to mount rln-relay
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# create a group of 100 membership keys
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let
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(groupKeys, root) = createMembershipList(100)
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check:
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groupKeys.len == 100
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let
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# convert the keys to MembershipKeyPair structs
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groupKeyPairs = groupKeys.toMembershipKeyPairs()
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# extract the id commitments
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groupIDCommitments = groupKeyPairs.mapIt(it.idCommitment)
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debug "groupKeyPairs", groupKeyPairs
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debug "groupIDCommitments", groupIDCommitments
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# index indicates the position of a membership key pair in the static list of group keys i.e., groupKeyPairs
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# the corresponding key pair will be used to mount rlnRelay on the current node
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# index also represents the index of the leaf in the Merkle tree that contains node's commitment key
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let index = MembershipIndex(5)
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# -------- mount rln-relay in the off-chain mode
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node.mountRelay(@[RLNRELAY_PUBSUB_TOPIC])
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await node.mountRlnRelay(groupOpt = some(groupIDCommitments),
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memKeyPairOpt = some(groupKeyPairs[index]),
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memIndexOpt = some(index),
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onchainMode = false,
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pubsubTopic = RLNRELAY_PUBSUB_TOPIC,
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contentTopic = RLNRELAY_CONTENT_TOPIC)
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# get the root of Merkle tree which is constructed inside the mountRlnRelay proc
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let calculatedRoot = node.wakuRlnRelay.rlnInstance.getMerkleRoot().value().toHex
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debug "calculated root by mountRlnRelay", calculatedRoot
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# this part checks whether the Merkle tree is constructed correctly inside the mountRlnRelay proc
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# this check is done by comparing the tree root resulted from mountRlnRelay i.e., calculatedRoot
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# against the root which is the expected root
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check:
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calculatedRoot == root
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await node.stop()
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suite "Waku rln relay":
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test "key_gen Nim Wrappers":
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var
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merkleDepth: csize_t = 32
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# parameters.key contains the parameters related to the Poseidon hasher
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# to generate this file, clone this repo https://github.com/kilic/rln
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# and run the following command in the root directory of the cloned project
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# cargo run --example export_test_keys
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# the file is generated separately and copied here
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parameters = readFile("waku/v2/protocol/waku_rln_relay/parameters.key")
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pbytes = parameters.toBytes()
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len: csize_t = uint(pbytes.len)
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parametersBuffer = Buffer(`ptr`: addr(pbytes[0]), len: len)
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check:
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# check the parameters.key is not empty
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pbytes.len != 0
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var
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rlnInstance: RLN[Bn256]
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let res = new_circuit_from_params(merkleDepth, addr parametersBuffer,
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addr rlnInstance)
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check:
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# check whether the circuit parameters are generated successfully
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res == true
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# keysBufferPtr will hold the generated key pairs i.e., secret and public keys
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var
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keysBuffer: Buffer
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keysBufferPtr = addr(keysBuffer)
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done = key_gen(rlnInstance, keysBufferPtr)
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check:
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# check whether the keys are generated successfully
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done == true
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if done:
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var generatedKeys = cast[ptr array[64, byte]](keysBufferPtr.`ptr`)[]
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check:
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# the public and secret keys together are 64 bytes
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generatedKeys.len == 64
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debug "generated keys: ", generatedKeys
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test "membership Key Gen":
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# create an RLN instance
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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var key = membershipKeyGen(rlnInstance.value)
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var empty: array[32, byte]
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check:
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key.isSome
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key.get().idKey.len == 32
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key.get().idCommitment.len == 32
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key.get().idKey != empty
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key.get().idCommitment != empty
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debug "the generated membership key pair: ", key
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test "get_root Nim binding":
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# create an RLN instance which also includes an empty Merkle tree
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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# read the Merkle Tree root
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var
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root1 {.noinit.}: Buffer = Buffer()
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rootPtr1 = addr(root1)
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get_root_successful1 = get_root(rlnInstance.value, rootPtr1)
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check:
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get_root_successful1
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root1.len == 32
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# read the Merkle Tree root
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var
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root2 {.noinit.}: Buffer = Buffer()
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rootPtr2 = addr(root2)
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get_root_successful2 = get_root(rlnInstance.value, rootPtr2)
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check:
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get_root_successful2
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root2.len == 32
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var rootValue1 = cast[ptr array[32, byte]] (root1.`ptr`)
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let rootHex1 = rootValue1[].toHex
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var rootValue2 = cast[ptr array[32, byte]] (root2.`ptr`)
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let rootHex2 = rootValue2[].toHex
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# the two roots must be identical
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check:
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rootHex1 == rootHex2
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test "getMerkleRoot utils":
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# create an RLN instance which also includes an empty Merkle tree
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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# read the Merkle Tree root
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var root1 = getMerkleRoot(rlnInstance.value())
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check:
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root1.isOk
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let rootHex1 = root1.value().toHex
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# read the Merkle Tree root
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var root2 = getMerkleRoot(rlnInstance.value())
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check:
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root2.isOk
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let rootHex2 = root2.value().toHex
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# the two roots must be identical
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check:
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rootHex1 == rootHex2
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test "update_next_member Nim Wrapper":
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# create an RLN instance which also includes an empty Merkle tree
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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# generate a key pair
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var keypair = membershipKeyGen(rlnInstance.value)
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check:
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keypair.isSome()
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var pkBuffer = toBuffer(keypair.get().idCommitment)
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let pkBufferPtr = addr pkBuffer
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# add the member to the tree
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var member_is_added = update_next_member(rlnInstance.value, pkBufferPtr)
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check:
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member_is_added == true
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test "delete_member Nim wrapper":
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# create an RLN instance which also includes an empty Merkle tree
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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# delete the first member
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var deleted_member_index = MembershipIndex(0)
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let deletion_success = delete_member(rlnInstance.value, deleted_member_index)
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check:
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deletion_success
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test "insertMember rln utils":
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# create an RLN instance which also includes an empty Merkle tree
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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var rln = rlnInstance.value
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# generate a key pair
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var keypair = rln.membershipKeyGen()
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check:
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keypair.isSome()
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check:
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rln.insertMember(keypair.get().idCommitment)
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test "removeMember rln utils":
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# create an RLN instance which also includes an empty Merkle tree
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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var rln = rlnInstance.value
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check:
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rln.removeMember(MembershipIndex(0))
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test "Merkle tree consistency check between deletion and insertion":
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# create an RLN instance
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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# read the Merkle Tree root
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var
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root1 {.noinit.}: Buffer = Buffer()
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rootPtr1 = addr(root1)
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get_root_successful1 = get_root(rlnInstance.value, rootPtr1)
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check:
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get_root_successful1
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root1.len == 32
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# generate a key pair
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var keypair = membershipKeyGen(rlnInstance.value)
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check: keypair.isSome()
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var pkBuffer = toBuffer(keypair.get().idCommitment)
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let pkBufferPtr = addr pkBuffer
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# add the member to the tree
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var member_is_added = update_next_member(rlnInstance.value, pkBufferPtr)
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check:
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member_is_added
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# read the Merkle Tree root after insertion
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var
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root2 {.noinit.}: Buffer = Buffer()
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rootPtr2 = addr(root2)
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get_root_successful2 = get_root(rlnInstance.value, rootPtr2)
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check:
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get_root_successful2
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root2.len == 32
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# delete the first member
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var deleted_member_index = MembershipIndex(0)
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let deletion_success = delete_member(rlnInstance.value, deleted_member_index)
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check:
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deletion_success
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# read the Merkle Tree root after the deletion
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var
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root3 {.noinit.}: Buffer = Buffer()
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rootPtr3 = addr(root3)
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get_root_successful3 = get_root(rlnInstance.value, rootPtr3)
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check:
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get_root_successful3
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root3.len == 32
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var rootValue1 = cast[ptr array[32, byte]] (root1.`ptr`)
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let rootHex1 = rootValue1[].toHex
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debug "The initial root", rootHex1
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var rootValue2 = cast[ptr array[32, byte]] (root2.`ptr`)
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let rootHex2 = rootValue2[].toHex
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debug "The root after insertion", rootHex2
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var rootValue3 = cast[ptr array[32, byte]] (root3.`ptr`)
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let rootHex3 = rootValue3[].toHex
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debug "The root after deletion", rootHex3
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# the root must change after the insertion
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check: not(rootHex1 == rootHex2)
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## The initial root of the tree (empty tree) must be identical to
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## the root of the tree after one insertion followed by a deletion
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check:
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rootHex1 == rootHex3
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test "Merkle tree consistency check between deletion and insertion using rln utils":
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# create an RLN instance
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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var rln = rlnInstance.value()
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# read the Merkle Tree root
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var root1 = rln.getMerkleRoot()
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check:
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root1.isOk
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let rootHex1 = root1.value().toHex()
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# generate a key pair
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var keypair = rln.membershipKeyGen()
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check:
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keypair.isSome()
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let member_inserted = rln.insertMember(keypair.get().idCommitment)
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check:
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member_inserted
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# read the Merkle Tree root after insertion
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var root2 = rln.getMerkleRoot()
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check:
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root2.isOk
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let rootHex2 = root2.value().toHex()
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# delete the first member
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var deleted_member_index = MembershipIndex(0)
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let deletion_success = rln.removeMember(deleted_member_index)
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check:
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deletion_success
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# read the Merkle Tree root after the deletion
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var root3 = rln.getMerkleRoot()
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check:
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root3.isOk
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let rootHex3 = root3.value().toHex()
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debug "The initial root", rootHex1
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debug "The root after insertion", rootHex2
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debug "The root after deletion", rootHex3
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# the root must change after the insertion
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check:
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not(rootHex1 == rootHex2)
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## The initial root of the tree (empty tree) must be identical to
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## the root of the tree after one insertion followed by a deletion
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check:
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rootHex1 == rootHex3
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test "hash Nim Wrappers":
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# create an RLN instance
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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# prepare the input
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var
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msg = "Hello".toBytes()
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hashInput = appendLength(msg)
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hashInputBuffer = toBuffer(hashInput)
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# prepare other inputs to the hash function
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var outputBuffer: Buffer
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let hashSuccess = hash(rlnInstance.value, addr hashInputBuffer,
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addr outputBuffer)
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check:
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hashSuccess
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let outputArr = cast[ptr array[32, byte]](outputBuffer.`ptr`)[]
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check:
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"efb8ac39dc22eaf377fe85b405b99ba78dbc2f3f32494add4501741df946bd1d" ==
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outputArr.toHex()
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var
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hashOutput = cast[ptr array[32, byte]] (outputBuffer.`ptr`)[]
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hashOutputHex = hashOutput.toHex()
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debug "hash output", hashOutputHex
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test "hash utils":
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# create an RLN instance
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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let rln = rlnInstance.value
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# prepare the input
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let msg = "Hello".toBytes()
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let hash = rln.hash(msg)
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check:
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"efb8ac39dc22eaf377fe85b405b99ba78dbc2f3f32494add4501741df946bd1d" ==
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hash.toHex()
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test "create a list of membership keys and construct a Merkle tree based on the list":
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let
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groupSize = 100
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(list, root) = createMembershipList(groupSize)
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debug "created membership key list", list
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debug "the Merkle tree root", root
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check:
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list.len == groupSize # check the number of keys
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root.len == HASH_HEX_SIZE # check the size of the calculated tree root
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test "check correctness of toMembershipKeyPairs and calcMerkleRoot":
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let groupKeys = STATIC_GROUP_KEYS
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# create a set of MembershipKeyPair objects from groupKeys
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let groupKeyPairs = groupKeys.toMembershipKeyPairs()
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# extract the id commitments
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let groupIDCommitments = groupKeyPairs.mapIt(it.idCommitment)
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# calculate the Merkle tree root out of the extracted id commitments
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let root = calcMerkleRoot(groupIDCommitments)
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debug "groupKeyPairs", groupKeyPairs
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debug "groupIDCommitments", groupIDCommitments
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debug "root", root
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check:
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# check that the correct number of key pairs is created
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groupKeyPairs.len == StaticGroupSize
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# compare the calculated root against the correct root
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root == STATIC_GROUP_MERKLE_ROOT
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test "RateLimitProof Protobuf encode/init test":
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var
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proof: ZKSNARK
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merkleRoot: MerkleNode
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epoch: Epoch
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shareX: MerkleNode
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shareY: MerkleNode
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nullifier: Nullifier
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# populate fields with dummy values
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for x in proof.mitems: x = 1
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for x in merkleRoot.mitems: x = 2
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for x in epoch.mitems: x = 3
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for x in shareX.mitems: x = 4
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for x in shareY.mitems: x = 5
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for x in nullifier.mitems: x = 6
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let
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rateLimitProof = RateLimitProof(proof: proof,
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merkleRoot: merkleRoot,
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epoch: epoch,
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shareX: shareX,
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shareY: shareY,
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nullifier: nullifier)
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protobuf = rateLimitProof.encode()
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decodednsp = RateLimitProof.init(protobuf.buffer)
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check:
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decodednsp.isErr == false
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decodednsp.value == rateLimitProof
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test "test proofVerify and proofGen for a valid proof":
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk
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var rln = rlnInstance.value
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let
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# create a membership key pair
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memKeys = membershipKeyGen(rln).get()
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# peer's index in the Merkle Tree
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index = 5
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# Create a Merkle tree with random members
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for i in 0..10:
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var member_is_added: bool = false
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if (i == index):
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# insert the current peer's pk
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member_is_added = rln.insertMember(memKeys.idCommitment)
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else:
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# create a new key pair
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let memberKeys = rln.membershipKeyGen()
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member_is_added = rln.insertMember(memberKeys.get().idCommitment)
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# check the member is added
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check:
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member_is_added
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# prepare the message
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let messageBytes = "Hello".toBytes()
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# prepare the epoch
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var epoch: Epoch
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debug "epoch", epochHex = epoch.toHex()
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# generate proof
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let proofRes = rln.proofGen(data = messageBytes,
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memKeys = memKeys,
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memIndex = MembershipIndex(index),
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epoch = epoch)
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check:
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proofRes.isOk()
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let proof = proofRes.value
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# verify the proof
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let verified = rln.proofVerify(data = messageBytes,
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proof = proof)
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check:
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verified == true
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test "test proofVerify and proofGen for an invalid proof":
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var rlnInstance = createRLNInstance()
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check:
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rlnInstance.isOk == true
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var rln = rlnInstance.value
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let
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# create a membership key pair
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memKeys = membershipKeyGen(rln).get()
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# peer's index in the Merkle Tree
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index = 5
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# Create a Merkle tree with random members
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for i in 0..10:
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var member_is_added: bool = false
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if (i == index):
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# insert the current peer's pk
|
|
member_is_added = rln.insertMember(memKeys.idCommitment)
|
|
else:
|
|
# create a new key pair
|
|
let memberKeys = rln.membershipKeyGen()
|
|
member_is_added = rln.insertMember(memberKeys.get().idCommitment)
|
|
# check the member is added
|
|
check:
|
|
member_is_added
|
|
|
|
# prepare the message
|
|
let messageBytes = "Hello".toBytes()
|
|
|
|
# prepare the epoch
|
|
var epoch: Epoch
|
|
debug "epoch in bytes", epochHex = epoch.toHex()
|
|
|
|
|
|
let badIndex = 4
|
|
# generate proof
|
|
let proofRes = rln.proofGen(data = messageBytes,
|
|
memKeys = memKeys,
|
|
memIndex = MembershipIndex(badIndex),
|
|
epoch = epoch)
|
|
check:
|
|
proofRes.isOk()
|
|
let proof = proofRes.value
|
|
|
|
# verify the proof (should not be verified)
|
|
let verified = rln.proofVerify(data = messageBytes,
|
|
proof = proof)
|
|
check:
|
|
verified == false
|
|
test "toEpoch and fromEpoch consistency check":
|
|
# check edge cases
|
|
let
|
|
epoch = uint64.high # rln epoch
|
|
epochBytes = epoch.toEpoch()
|
|
decodedEpoch = epochBytes.fromEpoch()
|
|
check:
|
|
epoch == decodedEpoch
|
|
debug "encoded and decode time", epoch = epoch, epochBytes = epochBytes,
|
|
decodedEpoch = decodedEpoch
|
|
|
|
test "Epoch comparison":
|
|
# check edge cases
|
|
let
|
|
time1 = uint64.high
|
|
time2 = uint64.high - 1
|
|
epoch1 = time1.toEpoch()
|
|
epoch2 = time2.toEpoch()
|
|
check:
|
|
diff(epoch1, epoch2) == int64(1)
|
|
diff(epoch2, epoch1) == int64(-1)
|
|
|
|
test "updateLog and hasDuplicate tests":
|
|
let
|
|
wakurlnrelay = WakuRLNRelay()
|
|
epoch = getCurrentEpoch()
|
|
|
|
# cretae some dummy nullifiers and secret shares
|
|
var nullifier1: Nullifier
|
|
for index, x in nullifier1.mpairs: nullifier1[index] = 1
|
|
var shareX1: MerkleNode
|
|
for index, x in shareX1.mpairs: shareX1[index] = 1
|
|
let shareY1 = shareX1
|
|
|
|
var nullifier2: Nullifier
|
|
for index, x in nullifier2.mpairs: nullifier2[index] = 2
|
|
var shareX2: MerkleNode
|
|
for index, x in shareX2.mpairs: shareX2[index] = 2
|
|
let shareY2 = shareX2
|
|
|
|
let nullifier3 = nullifier1
|
|
var shareX3: MerkleNode
|
|
for index, x in shareX3.mpairs: shareX3[index] = 3
|
|
let shareY3 = shareX3
|
|
|
|
let
|
|
wm1 = WakuMessage(proof: RateLimitProof(epoch: epoch,
|
|
nullifier: nullifier1, shareX: shareX1, shareY: shareY1))
|
|
wm2 = WakuMessage(proof: RateLimitProof(epoch: epoch,
|
|
nullifier: nullifier2, shareX: shareX2, shareY: shareY2))
|
|
wm3 = WakuMessage(proof: RateLimitProof(epoch: epoch,
|
|
nullifier: nullifier3, shareX: shareX3, shareY: shareY3))
|
|
|
|
# check whether hasDuplicate correctly finds records with the same nullifiers but different secret shares
|
|
# no duplicate for wm1 should be found, since the log is empty
|
|
let result1 = wakurlnrelay.hasDuplicate(wm1)
|
|
check:
|
|
result1.isOk
|
|
# no duplicate is found
|
|
result1.value == false
|
|
# add it to the log
|
|
discard wakurlnrelay.updateLog(wm1)
|
|
|
|
# # no duplicate for wm2 should be found, its nullifier differs from wm1
|
|
let result2 = wakurlnrelay.hasDuplicate(wm2)
|
|
check:
|
|
result2.isOk
|
|
# no duplicate is found
|
|
result2.value == false
|
|
# add it to the log
|
|
discard wakurlnrelay.updateLog(wm2)
|
|
|
|
# wm3 has the same nullifier as wm1 but different secret shares, it should be detected as duplicate
|
|
let result3 = wakurlnrelay.hasDuplicate(wm3)
|
|
check:
|
|
result3.isOk
|
|
# it is a duplicate
|
|
result3.value == true
|
|
|
|
test "validateMessage test":
|
|
# setup a wakurlnrelay peer with a static group----------
|
|
|
|
# create a group of 100 membership keys
|
|
let
|
|
(groupKeys, root) = createMembershipList(100)
|
|
# convert the keys to MembershipKeyPair structs
|
|
groupKeyPairs = groupKeys.toMembershipKeyPairs()
|
|
# extract the id commitments
|
|
groupIDCommitments = groupKeyPairs.mapIt(it.idCommitment)
|
|
debug "groupKeyPairs", groupKeyPairs
|
|
debug "groupIDCommitments", groupIDCommitments
|
|
|
|
# index indicates the position of a membership key pair in the static list of group keys i.e., groupKeyPairs
|
|
# the corresponding key pair will be used to mount rlnRelay on the current node
|
|
# index also represents the index of the leaf in the Merkle tree that contains node's commitment key
|
|
let index = MembershipIndex(5)
|
|
|
|
# create an RLN instance
|
|
var rlnInstance = createRLNInstance()
|
|
doAssert(rlnInstance.isOk)
|
|
var rln = rlnInstance.value
|
|
|
|
# add members
|
|
discard rln.addAll(groupIDCommitments)
|
|
|
|
let
|
|
wakuRlnRelay = WakuRLNRelay(membershipIndex: index,
|
|
membershipKeyPair: groupKeyPairs[index], rlnInstance: rln)
|
|
|
|
# get the current epoch time
|
|
let time = epochTime()
|
|
|
|
# create some messages from the same peer and append rln proof to them, except wm4
|
|
var
|
|
wm1 = WakuMessage(payload: "Valid message".toBytes())
|
|
proofAdded1 = wakuRlnRelay.appendRLNProof(wm1, time)
|
|
# another message in the same epoch as wm1, it will break the messaging rate limit
|
|
wm2 = WakuMessage(payload: "Spam".toBytes())
|
|
proofAdded2 = wakuRlnRelay.appendRLNProof(wm2, time)
|
|
# wm3 points to the next epoch
|
|
wm3 = WakuMessage(payload: "Valid message".toBytes())
|
|
proofAdded3 = wakuRlnRelay.appendRLNProof(wm3, time+EPOCH_UNIT_SECONDS)
|
|
wm4 = WakuMessage(payload: "Invalid message".toBytes())
|
|
|
|
# checks proofs are added
|
|
check:
|
|
proofAdded1
|
|
proofAdded2
|
|
proofAdded3
|
|
|
|
# validate messages
|
|
# validateMessage proc checks the validity of the message fields and adds it to the log (if valid)
|
|
let
|
|
msgValidate1 = wakuRlnRelay.validateMessage(wm1, some(time))
|
|
# wm2 is published within the same Epoch as wm1 and should be found as spam
|
|
msgValidate2 = wakuRlnRelay.validateMessage(wm2, some(time))
|
|
# a valid message should be validated successfully
|
|
msgValidate3 = wakuRlnRelay.validateMessage(wm3, some(time))
|
|
# wm4 has no rln proof and should not be validated
|
|
msgValidate4 = wakuRlnRelay.validateMessage(wm4, some(time))
|
|
|
|
|
|
check:
|
|
msgValidate1 == MessageValidationResult.Valid
|
|
msgValidate2 == MessageValidationResult.Spam
|
|
msgValidate3 == MessageValidationResult.Valid
|
|
msgValidate4 == MessageValidationResult.Invalid
|
|
|