add precompile ed25519 verify (#1031)

Co-authored-by: shaorongqiang <shaorongqiang@email.com>

Cargo.toml

@@ -17,6 +17,7 @@ members = [
     "src/components/contracts/modules/evm/precompile/anemoi",
     "src/components/contracts/modules/evm/precompile/blake2",
     "src/components/contracts/modules/evm/precompile/bn128",
+    "src/components/contracts/modules/evm/precompile/ed25519_verify",
     "src/components/contracts/modules/evm/precompile/utils",
     "src/components/contracts/modules/evm/precompile/utils/macro",
     "src/components/contracts/modules/xhub",

src/components/contracts/modules/evm/precompile/Cargo.toml

@@ -18,6 +18,7 @@ evm-precompile-sha3fips = {path = "./sha3fips"}
 evm-precompile-anemoi = {path = "./anemoi"}
 evm-precompile-blake2 = {path = "./blake2"}
 evm-precompile-bn128 = {path = "./bn128"}
+evm-precompile-ed25519-verify = {path = "./ed25519_verify"}
 fp-core = {path = "../../../primitives/core"}
 module-evm = {path = "../../../modules/evm"}
 parking_lot = "0.12"

src/components/contracts/modules/evm/precompile/ed25519_verify/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "evm-precompile-ed25519-verify"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+evm = { version = "0.35.0", default-features = false, features = ["with-serde"] }
+evm-precompile-utils = { path = "../utils"}
+tracing = "0.1"
+module-evm = { path = "../../../../modules/evm"}
+num_enum = { version = "0.5.4", default-features = false }
+zei = { git = "https://github.com/FindoraNetwork/zei", branch = "stable-main" }

src/components/contracts/modules/evm/precompile/ed25519_verify/src/lib.rs

@@ -0,0 +1,59 @@
+use evm::executor::stack::{PrecompileFailure, PrecompileOutput};
+use evm::{Context, ExitError, ExitSucceed};
+use module_evm::precompile::{FinState, Precompile, PrecompileId, PrecompileResult};
+use zei::{
+    serialization::ZeiFromToBytes,
+    xfr::sig::{XfrPublicKey, XfrSignature},
+};
+
+pub struct Ed25519Verify;
+
+impl Ed25519Verify {
+    const GAS_COST: u64 = 50000; // https://eips.ethereum.org/EIPS/eip-1108
+}
+
+impl PrecompileId for Ed25519Verify {
+    fn contract_id() -> u64 {
+        0x2003
+    }
+}
+
+impl Precompile for Ed25519Verify {
+    fn execute(
+        input: &[u8],
+        _target_gas: Option<u64>,
+        _context: &Context,
+        _state: &FinState,
+    ) -> PrecompileResult {
+        if input.len() < 128 {
+            return Err(PrecompileFailure::Error {
+                exit_status: ExitError::Other("input must contain 128 bytes".into()),
+            });
+        };
+        let pk = &input[0..32];
+        let msg = &input[32..64];
+        let sig = &input[64..128];
+        let pub_key =
+            XfrPublicKey::zei_from_bytes(pk).map_err(|_| PrecompileFailure::Error {
+                exit_status: ExitError::Other("Public key recover failed".into()),
+            })?;
+        let sig =
+            XfrSignature::zei_from_bytes(sig).map_err(|_| PrecompileFailure::Error {
+                exit_status: ExitError::Other("Signature recover failed".into()),
+            })?;
+
+        let mut buf = [0u8; 4];
+        if pub_key.verify(msg, &sig).is_ok() {
+            buf[3] = 0u8;
+        } else {
+            buf[3] = 1u8;
+        };
+
+        Ok(PrecompileOutput {
+            exit_status: ExitSucceed::Returned,
+            cost: Self::GAS_COST,
+            output: buf.to_vec(),
+            logs: Default::default(),
+        })
+    }
+}

src/components/contracts/modules/evm/precompile/src/lib.rs

@@ -1,5 +1,6 @@
 use ethereum_types::H160;
 use evm::{executor::stack::PrecompileSet, Context};
+use evm_precompile_ed25519_verify::Ed25519Verify;
 use module_evm::precompile::{Precompile, PrecompileResult};
 use std::marker::PhantomData;
 
@@ -79,6 +80,9 @@ where
             a if a == H160::from_low_u64_be(Anemoi::contract_id()) => {
                 Some(Anemoi::execute(input, target_gas, context, ctx))
             }
+            a if a == H160::from_low_u64_be(Ed25519Verify::contract_id()) => {
+                Some(Ed25519Verify::execute(input, target_gas, context, ctx))
+            }
             //a if a == H160::from_low_u64_be(EthPairing::contract_id()) => {
             //    Some(EthPairing::execute(input, target_gas, context, ctx))
             //}

src/components/finutils/src/bins/fn.rs

@@ -277,7 +277,7 @@ fn run() -> Result<()> {
         let td_addr = m.value_of("validator-td-addr");
         common::unstake(am, staker.as_deref(), td_addr).c(d!())?;
     } else if let Some(m) = matches.subcommand_matches("claim") {
-        let am = m.value_of("amount");
+        let am = None;
         let seckey = match m.value_of("seckey") {
             Some(path) => {
                 Some(fs::read_to_string(path).c(d!("Failed to read seckey file"))?)

src/components/finutils/src/bins/fn.yml

@@ -149,12 +149,6 @@ subcommands:
             long: validator-td-addr
             takes_value: true
             value_name: TendermintAddr
-        - amount:
-            help: how much `FRA unit`s to claim
-            short: n
-            long: amount
-            takes_value: true
-            value_name: Amount
         - seckey:
             help: the file which contains base64-formated `XfrPrivateKey` of an existing wallet
             long: seckey