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Adds offchain message signing test for 7702 #4726

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42 changes: 42 additions & 0 deletions android/app/src/androidTest/java/com/trustwallet/core/app/blockchains/ethereum/TestBiz.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -242,4 +242,46 @@ class TestBiz {
val expected = "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"
assertEquals(expected, Numeric.toHexString(encoded))
}

// Off-chain message signing for Biz isValidSignature()
@Test
fun testBizOffchainMsgSigning() {
val chainIdByteArray = "0x7A69".toHexByteArray() // 31337
val wallet = "0x328809Bc894f92807417D2dAD6b7C998c1aFdac6"

val codeAddress = "0xc7183455a4C133Ae270771860664b6B7ec320bB1"
val codeName = "Biz"
val codeVersion = "v2.0.0"
// keccak256("Biz(bytes32 msgHash)")
val typeHash = "0x31322a37c2a66b24e1088197e5b24fcc050625c13d4b84c3eaa6a8be5270321d"
val domainSeparatorHash = "0xd87cd6ef79d4e2b95e15ce8abf732db51ec771f1ca2edccf22a46c729ac56472"

// keccak256(abi.encode(keccak256("test message")))
val innerHash = "0x4a57b5e386189fd992a83269e996782dbfb8ad539903019abcff0a5b3c012671"

val encodedHash = WCBiz.getEncodedHash(
chainIdByteArray,
codeAddress,
codeName,
codeVersion,
typeHash,
domainSeparatorHash,
wallet,
innerHash
)
assertEquals(
"0xf1b5b1122b48d985c9dccaae7978a607b77bd7e0a851ff9e750acacfd2919c3f",
Numeric.toHexString(encodedHash)
)

val privateKey = "0x9c0257114eb9399a2985f8e75dad7600c5d89fe3824ffa99ec1c3eb8bf3b0501"
val signedHash = WCBiz.getSignedHash(
"0xf1b5b1122b48d985c9dccaae7978a607b77bd7e0a851ff9e750acacfd2919c3f",
privateKey
)
assertEquals(
"0x08c85dc326ddb9f23265fdc4c71f6d763439a29080353e6a2461e6b0f25cfecb2405e9e2d7fb7bd81ac42d2fbf53253c5e03fa73d8a755727c474f11fa37db401c",
Numeric.toHexString(signedHash)
)
}
}
68 changes: 68 additions & 0 deletions rust/tw_evm/tests/biz_ffi.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ use tw_evm::address::Address;
use tw_evm::ffi::biz::{
tw_biz_get_encoded_hash, tw_biz_get_signed_hash, tw_biz_sign_execute_with_signature_call,
};
use tw_hash::sha3::keccak256;
use tw_memory::test_utils::tw_data_helper::TWDataHelper;
use tw_memory::test_utils::tw_string_helper::TWStringHelper;
use tw_number::U256;
Expand Down Expand Up @@ -114,3 +115,70 @@ fn test_execute_with_signature_ffi() {
let expected = "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";
assert_eq!(encoded.to_vec().unwrap().to_hex_prefixed(), expected);
}

/// Tests off-chain message signing for Biz `isValidSignature()` (EIP-1271).
#[test]
fn test_biz_offchain_msg_signing() {
let biz_msg_type_hash = keccak256(b"Biz(bytes32 msgHash)");
assert_eq!(
hex::encode(&biz_msg_type_hash, true),
"0x31322a37c2a66b24e1088197e5b24fcc050625c13d4b84c3eaa6a8be5270321d"
);

let chain_id = U256::from(31337u64).to_big_endian();
let chain_id = TWDataHelper::create(chain_id.to_vec());
let code_address = TWStringHelper::create("0xc7183455a4C133Ae270771860664b6B7ec320bB1");
let code_name = TWStringHelper::create("Biz");
let code_version = TWStringHelper::create("v2.0.0");
let type_hash = TWStringHelper::create(
"0x31322a37c2a66b24e1088197e5b24fcc050625c13d4b84c3eaa6a8be5270321d",
);
let domain_separator_hash = TWStringHelper::create(
"0xd87cd6ef79d4e2b95e15ce8abf732db51ec771f1ca2edccf22a46c729ac56472",
);
let sender = TWStringHelper::create("0x328809Bc894f92807417D2dAD6b7C998c1aFdac6");

let raw_hash = keccak256(b"test message");
assert_eq!(
hex::encode(&raw_hash, true),
"0xea83cdcdd06bf61e414054115a551e23133711d0507dcbc07a4bab7dc4581935"
);

let inner_hash = keccak256(&raw_hash);
assert_eq!(
hex::encode(&inner_hash, true),
"0x4a57b5e386189fd992a83269e996782dbfb8ad539903019abcff0a5b3c012671"
);

let inner_hash_str = TWStringHelper::create(&hex::encode(&inner_hash, true));
let encoded_hash = TWDataHelper::wrap(unsafe {
tw_biz_get_encoded_hash(
chain_id.ptr(),
code_address.ptr(),
code_name.ptr(),
code_version.ptr(),
type_hash.ptr(),
domain_separator_hash.ptr(),
sender.ptr(),
inner_hash_str.ptr(),
)
});
assert_eq!(
hex::encode(encoded_hash.to_vec().unwrap(), true),
"0xf1b5b1122b48d985c9dccaae7978a607b77bd7e0a851ff9e750acacfd2919c3f"
);

let private_key = TWStringHelper::create(
"0x9c0257114eb9399a2985f8e75dad7600c5d89fe3824ffa99ec1c3eb8bf3b0501",
);
let encoded_hash_str = TWStringHelper::create(
"0xf1b5b1122b48d985c9dccaae7978a607b77bd7e0a851ff9e750acacfd2919c3f",
);
let signed_hash = TWDataHelper::wrap(unsafe {
tw_biz_get_signed_hash(encoded_hash_str.ptr(), private_key.ptr())
});
assert_eq!(
hex::encode(signed_hash.to_vec().unwrap(), true),
"0x08c85dc326ddb9f23265fdc4c71f6d763439a29080353e6a2461e6b0f25cfecb2405e9e2d7fb7bd81ac42d2fbf53253c5e03fa73d8a755727c474f11fa37db401c"
);
}
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