mirror of
https://github.com/status-im/nim-dagger.git
synced 2025-02-23 20:08:20 +00:00
267 lines
7.1 KiB
Nim
267 lines
7.1 KiB
Nim
import std/[sequtils, strformat, os, options, importutils]
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import std/[times, os, strutils, terminal, parseopt, json]
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import pkg/questionable
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import pkg/questionable/results
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import pkg/circomcompat
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import pkg/poseidon2/io
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import ./utils
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import ./create_circuits
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type
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CircomCircuit* = object
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r1csPath*: string
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wasmPath*: string
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zkeyPath*: string
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inputsPath*: string
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dir*: string
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circName*: string
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backendCfg: ptr CircomBn254Cfg
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vkp*: ptr VerifyingKey
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proc release*(self: CircomCircuit) =
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## Release the ctx
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##
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if not isNil(self.backendCfg):
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self.backendCfg.unsafeAddr.releaseCfg()
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if not isNil(self.vkp):
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self.vkp.unsafeAddr.release_key()
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proc prove*[H](self: CircomCircuit, input: JsonNode): ?!Proof =
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## Encode buffers using a ctx
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##
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# TODO: All parameters should match circom's static parametter
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var ctx: ptr CircomCompatCtx
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defer:
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if ctx != nil:
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ctx.addr.releaseCircomCircuit()
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if initCircomCompat(self.backendCfg, addr ctx) != ERR_OK or ctx == nil:
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raiseAssert("failed to initialize CircomCircuit ctx")
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# if ctx.pushInputU256Array("entropy".cstring, entropy[0].addr, entropy.len.uint32) !=
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# ERR_OK:
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# return failure("Failed to push entropy")
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# if ctx.pushInputU32("slotIndex".cstring, input.slotIndex.uint32) != ERR_OK:
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# return failure("Failed to push slotIndex")
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var slotProof = input.slotProof.mapIt(it.toBytes).concat
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slotProof.setLen(self.datasetDepth) # zero pad inputs to correct size
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# arrays are always flattened
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if ctx.pushInputU256Array(
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"slotProof".cstring, slotProof[0].addr, uint (slotProof[0].len * slotProof.len)
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) != ERR_OK:
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return failure("Failed to push slot proof")
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for s in input.samples:
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var
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merklePaths = s.merklePaths.mapIt(it.toBytes)
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data = s.cellData
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merklePaths.setLen(self.slotDepth) # zero pad inputs to correct size
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if ctx.pushInputU256Array(
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"merklePaths".cstring,
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merklePaths[0].addr,
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uint (merklePaths[0].len * merklePaths.len),
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) != ERR_OK:
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return failure("Failed to push merkle paths")
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data.setLen(self.cellElms * 32) # zero pad inputs to correct size
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if ctx.pushInputU256Array("cellData".cstring, data[0].addr, data.len.uint) != ERR_OK:
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return failure("Failed to push cell data")
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var proofPtr: ptr Proof = nil
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let proof =
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try:
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if (let res = self.backendCfg.proveCircuit(ctx, proofPtr.addr); res != ERR_OK) or
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proofPtr == nil:
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return failure("Failed to prove - err code: " & $res)
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proofPtr[]
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finally:
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if proofPtr != nil:
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proofPtr.addr.releaseProof()
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success proof
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# proc toCircomInputs*(inputs: ProofInputs[Poseidon2Hash]): Inputs =
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# var
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# slotIndex = inputs.slotIndex.toF.toBytes.toArray32
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# datasetRoot = inputs.datasetRoot.toBytes.toArray32
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# entropy = inputs.entropy.toBytes.toArray32
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# elms = [entropy, datasetRoot, slotIndex]
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# let inputsPtr = allocShared0(32 * elms.len)
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# copyMem(inputsPtr, addr elms[0], elms.len * 32)
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# CircomInputs(elms: cast[ptr array[32, byte]](inputsPtr), len: elms.len.uint)
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# proc verify*[H](self: CircomCircuit, proof: CircomProof, inputs: ProofInputs[H]): ?!bool =
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# ## Verify a proof using a ctx
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# ##
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# var
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# proofPtr = unsafeAddr proof
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# inputs = inputs.toCircomInputs()
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# try:
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# let res = verifyCircuit(proofPtr, inputs.addr, self.vkp)
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# if res == ERR_OK:
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# success true
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# elif res == ERR_FAILED_TO_VERIFY_PROOF:
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# success false
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# else:
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# failure("Failed to verify proof - err code: " & $res)
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# finally:
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# inputs.releaseCircomInputs()
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proc init*(
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_: type CircomCircuit,
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r1csPath: string,
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wasmPath: string,
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zkeyPath: string = "",
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): CircomCircuit =
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## Create a new ctx
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##
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var cfg: ptr CircomBn254Cfg
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var zkey = if zkeyPath.len > 0: zkeyPath.cstring else: nil
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if initCircomConfig(r1csPath.cstring, wasmPath.cstring, zkey, cfg.addr) != ERR_OK or
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cfg == nil:
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if cfg != nil:
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cfg.addr.releaseCfg()
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raiseAssert("failed to initialize circom compat config")
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var vkpPtr: ptr VerifyingKey = nil
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if cfg.getVerifyingKey(vkpPtr.addr) != ERR_OK or vkpPtr == nil:
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if vkpPtr != nil:
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vkpPtr.addr.releaseKey()
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raiseAssert("Failed to get verifying key")
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CircomCircuit(
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r1csPath: r1csPath,
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wasmPath: wasmPath,
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zkeyPath: zkeyPath,
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backendCfg: cfg,
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vkp: vkpPtr,
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)
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proc printHelp() =
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echo "usage:"
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echo " ./circom_ark_prover_cli [options] "
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echo ""
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echo "available options:"
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echo " -h, --help : print this help"
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echo " -v, --verbose : verbose output (print the actual parameters)"
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echo ""
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echo "Must provide files options. Use either:"
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echo " --dir:$CIRCUIT_DIR --name:$CIRCUIT_NAME"
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echo "or:"
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echo " --r1cs:$R1CS --wasm:$WASM --zkey:$ZKEY"
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echo ""
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quit(1)
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proc parseCliOptions(args: var CircuitArgs, self: var CircomCircuit) =
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var argCtr: int = 0
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template expectPath(val: string): string =
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if val == "":
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echo "ERROR: expected path a but got empty for: ", key
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printHelp()
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val.absolutePath
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for kind, key, value in getOpt():
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case kind
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# Positional arguments
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of cmdArgument:
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echo "\nERROR: got unexpected arg: ", key, "\n"
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printHelp()
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# Switches
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of cmdLongOption, cmdShortOption:
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case key
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of "h", "help":
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printHelp()
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of "r1cs":
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self.r1csPath = value.expectPath()
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of "wasm":
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self.wasmPath = value.expectPath()
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of "zkey":
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self.zkeyPath = value.expectPath()
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of "inputs":
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self.inputsPath = value.expectPath()
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of "dir":
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self.dir = value.expectPath()
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of "name":
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self.circName = value
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else:
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echo "Unknown option: ", key
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echo "use --help to get a list of options"
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quit()
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of cmdEnd:
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discard
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proc run*() =
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## Run Codex Ark/Circom based prover
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##
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echo "Running prover"
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# prove wasm ${CIRCUIT_MAIN}.zkey witness.wtns proof.json public.json
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var
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args = CircuitArgs()
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self = CircomCircuit()
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parseCliOptions(args, self)
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let dir =
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if self.dir != "":
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self.dir
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else:
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getCurrentDir()
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if self.circName != "":
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if self.r1csPath == "":
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self.r1csPath = dir / fmt"{self.circName}.r1cs"
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if self.wasmPath == "":
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self.wasmPath = dir / fmt"{self.circName}.wasm"
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if self.zkeyPath == "":
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self.zkeyPath = dir / fmt"{self.circName}.zkey"
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if self.inputsPath == "":
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self.inputsPath = dir / fmt"input.json"
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echo "Got file args: ", self
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var fileErrors = false
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template checkFile(file, name: untyped) =
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if file == "" or not file.fileExists():
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echo "\nERROR: must provide `" & name & "` file"
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fileErrors = true
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checkFile self.inputsPath, "inputs.json"
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checkFile self.r1csPath, "r1cs"
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checkFile self.wasmPath, "wasm"
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checkFile self.zkeyPath, "zkey"
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if fileErrors:
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echo "ERROR: couldn't find all files"
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printHelp()
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var
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inputData = self.inputsPath.readFile()
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inputs: JsonNode = !JsonNode.parse(inputData)
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echo "Got args: ", args
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runArkCircom(args, self)
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when isMainModule:
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run()
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