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DCIPs/assets/eip-6404/tests/union/verify_proofs.c

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Adding EIPs website fork with some Gem Updates
2023-04-05 16:02:54 +00:00
// Only one proof is verified at a time - create with `create_proofs.py`
// TRANSACTION, AMOUNT, SENDER, INFO
#define PROOF_TYPE INFO
// 0, 1, 2, 3, 4
#define PROOF_INDEX 4
/*******************************************************************************
prj.conf:
CONFIG_MAIN_STACK_SIZE=6144
CONFIG_NRF_OBERON=y
CONFIG_TIMING_FUNCTIONS=y
CMakeLists.txt:
zephyr_get_compile_definitions_for_lang_as_string(C definitions)
zephyr_get_compile_options_for_lang_as_string(C options)
zephyr_get_include_directories_for_lang_as_string(C includes)
zephyr_get_system_include_directories_for_lang_as_string(C system_includes)
string(CONCAT external_project_cflags
"${definitions} ${options} ${includes} ${system_includes} "
"-specs=nosys.specs")
include(ExternalProject)
set(secp256k1_prefix ${CMAKE_CURRENT_BINARY_DIR}/libsecp256k1)
ExternalProject_Add(
libsecp256k1
PREFIX ${secp256k1_prefix}
SOURCE_DIR ${secp256k1_srcdir}
DOWNLOAD_COMMAND cd ${secp256k1_srcdir} && git clean -dfX &&
${secp256k1_srcdir}/autogen.sh
CONFIGURE_COMMAND ${secp256k1_srcdir}/configure
CFLAGS=${external_project_cflags}
--srcdir=${secp256k1_srcdir}
--prefix=${secp256k1_prefix}
--host=arm-zephyr-eabi
--disable-shared
--enable-static
--disable-benchmark
--enable-experimental
--enable-module-recovery
--with-asm=arm
--with-ecmult-window=8
--with-ecmult-gen-precision=2
BUILD_COMMAND make
INSTALL_COMMAND make install
BUILD_BYPRODUCTS ${secp256k1_prefix}/lib/libsecp256k1.a)
add_library(secp256k1 STATIC IMPORTED GLOBAL)
add_dependencies(secp256k1 libsecp256k1)
file(MAKE_DIRECTORY ${secp256k1_prefix}/include)
set_target_properties(secp256k1 PROPERTIES
IMPORTED_LOCATION ${secp256k1_prefix}/lib/libsecp256k1.a
INTERFACE_INCLUDE_DIRECTORIES ${secp256k1_prefix}/include)
target_link_libraries(app PRIVATE nrfxlib_crypto secp256k1)
*******************************************************************************/
#include <stdint.h>
#include <string.h>
#include <zephyr/kernel.h>
#include <zephyr/timing/timing.h>
#include <ocrypto_sha256.h>
#include <secp256k1_recovery.h>
#include <sha3.h>
#if DEBUG
#define debug(...) printk(__VA_ARGS__)
#else
#define debug(...) (void) 0
#endif
#define array_count(array) ((size_t)(sizeof(array) / sizeof((array)[0])))
#define TX_DEPTH (20)
#define MAX_TRANSACTIONS_PER_PAYLOAD ((uint32_t) 1 << TX_DEPTH)
typedef uint8_t Bytes20[20];
typedef uint8_t Bytes32[32];
typedef Bytes20 ExecutionAddress;
typedef Bytes32 Hash32;
typedef Bytes32 Root;
typedef enum __attribute__((packed)) {
DESTINATION_TYPE_REGULAR = 0x00,
DESTINATION_TYPE_CREATE = 0x01
} DestinationType;
typedef struct {
DestinationType destination_type;
ExecutionAddress address;
} DestinationAddress;
typedef struct {
Bytes32 max_priority_fee_per_gas;
Bytes32 max_fee_per_gas;
uint64_t gas;
} TransactionLimits;
typedef struct {
uint32_t tx_index;
Hash32 tx_hash;
ExecutionAddress tx_from;
uint64_t nonce;
DestinationAddress tx_to;
Bytes32 tx_value;
TransactionLimits limits;
} TransactionInfo;
static const Root zero_hash[] = {
{0},
{
0xf5, 0xa5, 0xfd, 0x42, 0xd1, 0x6a, 0x20, 0x30,
0x27, 0x98, 0xef, 0x6e, 0xd3, 0x09, 0x97, 0x9b,
0x43, 0x00, 0x3d, 0x23, 0x20, 0xd9, 0xf0, 0xe8,
0xea, 0x98, 0x31, 0xa9, 0x27, 0x59, 0xfb, 0x4b
}
};
typedef struct {
Bytes32 chain_id;
} ExecutionConfig;
static void hash_combine(Root *root, const Root *a, const Root *b)
{
ocrypto_sha256_ctx ctx;
ocrypto_sha256_init(&ctx);
ocrypto_sha256_update(&ctx, &(*a)[0], sizeof *a);
ocrypto_sha256_update(&ctx, &(*b)[0], sizeof *b);
ocrypto_sha256_final(&ctx, &(*root)[0]);
}
#define consume(n) \
do { \
proof = (const uint8_t *) proof + (n); \
num_proof_bytes -= (n); \
} while (0)
__attribute__((warn_unused_result))
static int verify_transaction_proof(
const void *proof,
size_t num_proof_bytes,
const ExecutionConfig *cfg __attribute__((unused)),
const Root *transactions_root,
const Root *expected_tx_hash)
{
Root root;
// tx_root
const Root *tx_root = proof;
if (num_proof_bytes < sizeof *tx_root) return 1;
if (memcmp(tx_root, expected_tx_hash, sizeof *tx_root)) return 1;
consume(sizeof *tx_root);
// tx_selector
const uint8_t *tx_selector = proof;
if (num_proof_bytes < sizeof *tx_selector) return 1;
consume(sizeof *tx_selector);
// transaction_root
/* 3 */ root[0] = *tx_selector; memset(&root[1], 0, 31);
/* 1 */ hash_combine(&root, tx_root, &root);
// tx_index
const uint32_t *tx_index = proof;
if (num_proof_bytes < sizeof *tx_index) return 1;
if (*tx_index >= MAX_TRANSACTIONS_PER_PAYLOAD) return 1;
consume(sizeof *tx_index);
// transactions_root
const Root *tx_branch = proof;
if (num_proof_bytes < (1 + TX_DEPTH) * sizeof *tx_branch) return 1;
for (int i = 0; i < TX_DEPTH; i++) {
if (*tx_index & ((uint32_t) 1 << i))
hash_combine(&root, tx_branch, &root);
else
hash_combine(&root, &root, tx_branch);
tx_branch++;
}
hash_combine(&root, &root, tx_branch);
if (memcmp(&root, transactions_root, sizeof root)) return 1;
consume((1 + TX_DEPTH) * sizeof *tx_branch);
if (num_proof_bytes) return 1;
return 0;
}
__attribute__((warn_unused_result))
static int verify_amount_proof(
const void *proof,
size_t num_proof_bytes,
const ExecutionConfig *cfg __attribute__((unused)),
const Root *transactions_root,
const ExecutionAddress *expected_tx_to,
const Bytes32 *expected_tx_value_min)
{
Root root, scratch;
// &tx_proof
const uint32_t *tx_proof_offset = proof;
if (num_proof_bytes < sizeof *tx_proof_offset) return 1;
if (*tx_proof_offset != 680) return 1;
consume(sizeof *tx_proof_offset);
// tx_index
const uint32_t *tx_index = proof;
if (num_proof_bytes < sizeof *tx_index) return 1;
if (*tx_index >= MAX_TRANSACTIONS_PER_PAYLOAD) return 1;
consume(sizeof *tx_index);
// tx_branch
const Root *tx_branch = proof;
if (num_proof_bytes < (1 + TX_DEPTH) * sizeof *tx_branch) return 1;
consume((1 + TX_DEPTH) * sizeof *tx_branch);
// tx_selector
const uint8_t *tx_selector = proof;
if (num_proof_bytes < sizeof *tx_selector) return 1;
consume(sizeof *tx_selector);
// tx_root
switch (*tx_selector) {
case 3: {
// gas
const uint64_t *gas = proof;
if (num_proof_bytes < sizeof *gas) return 1;
consume(sizeof *gas);
// &to
const uint32_t *to_offset = proof;
if (num_proof_bytes < sizeof *to_offset) return 1;
if (*to_offset != 172) return 1;
consume(sizeof *to_offset);
// value
const Bytes32 *value = proof;
if (num_proof_bytes < sizeof *value) return 1;
for (int i = sizeof *value - 1; i >= 0; i--) {
if ((*value)[i] > (*expected_tx_value_min)[i]) break;
if ((*value)[i] < (*expected_tx_value_min)[i]) return 1;
}
consume(sizeof *value);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 3 * sizeof *multi_branch) return 1;
consume(3 * sizeof *multi_branch);
// signature_root
const Root *signature_root = proof;
if (num_proof_bytes < sizeof *signature_root) return 1;
consume(sizeof *signature_root);
// to_selector
const uint8_t *to_selector = proof;
if (num_proof_bytes < sizeof *to_selector) return 1;
if (*to_selector != 1) return 1;
consume(sizeof *to_selector);
// to
const ExecutionAddress *to = proof;
if (num_proof_bytes < sizeof *to) return 1;
if (memcmp(to, expected_tx_to, sizeof *to)) return 1;
consume(sizeof *to);
// sig_root
if (num_proof_bytes) return 1;
/* 42 */ memcpy(&root[0], to, 20); memset(&root[20], 0, 12);
/* 43 */ scratch[0] = 1; memset(&scratch[1], 0, 31);
/* 21 */ hash_combine(&scratch, &root, &scratch);
/* 20 */ memcpy(&root[0], gas, 8); memset(&root[8], 0, 24);
/* 10 */ hash_combine(&root, &root, &scratch);
/* 11 */ hash_combine(&scratch, value, &multi_branch[0]);
/* 5 */ hash_combine(&root, &root, &scratch);
/* 2 */ hash_combine(&root, &multi_branch[1], &root);
/* 1 */ hash_combine(&root, &root, &multi_branch[2]);
// tx_root
hash_combine(&root, &root, signature_root);
} break;
case 2: {
// gas_limit
const uint64_t *gas_limit = proof;
if (num_proof_bytes < sizeof *gas_limit) return 1;
consume(sizeof *gas_limit);
// &destination
const uint32_t *destination_offset = proof;
if (num_proof_bytes < sizeof *destination_offset) return 1;
if (*destination_offset != 172) return 1;
consume(sizeof *destination_offset);
// amount
const Bytes32 *amount = proof;
if (num_proof_bytes < sizeof *amount) return 1;
for (int i = sizeof *amount - 1; i >= 0; i--) {
if ((*amount)[i] > (*expected_tx_value_min)[i]) break;
if ((*amount)[i] < (*expected_tx_value_min)[i]) return 1;
}
consume(sizeof *amount);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 3 * sizeof *multi_branch) return 1;
consume(3 * sizeof *multi_branch);
// signature_root
const Root *signature_root = proof;
if (num_proof_bytes < sizeof *signature_root) return 1;
consume(sizeof *signature_root);
// destination_selector
const uint8_t *destination_selector = proof;
if (num_proof_bytes < sizeof *destination_selector) return 1;
if (*destination_selector != 1) return 1;
consume(sizeof *destination_selector);
// destination
const ExecutionAddress *dest = proof;
if (num_proof_bytes < sizeof *dest) return 1;
if (memcmp(dest, expected_tx_to, sizeof *dest)) return 1;
consume(sizeof *dest);
// sig_root
if (num_proof_bytes) return 1;
/* 42 */ memcpy(&root[0], dest, 20); memset(&root[20], 0, 12);
/* 43 */ scratch[0] = 1; memset(&scratch[1], 0, 31);
/* 21 */ hash_combine(&scratch, &root, &scratch);
/* 20 */ memcpy(&root[0], gas_limit, 8); memset(&root[8], 0, 24);
/* 10 */ hash_combine(&root, &root, &scratch);
/* 11 */ hash_combine(&scratch, amount, &multi_branch[0]);
/* 5 */ hash_combine(&root, &root, &scratch);
/* 2 */ hash_combine(&root, &multi_branch[1], &root);
/* 1 */ hash_combine(&root, &root, &multi_branch[2]);
// tx_root
hash_combine(&root, &root, signature_root);
} break;
case 1: {
// &to
const uint32_t *to_offset = proof;
if (num_proof_bytes < sizeof *to_offset) return 1;
if (*to_offset != 132) return 1;
consume(sizeof *to_offset);
// value
const Bytes32 *value = proof;
if (num_proof_bytes < sizeof *value) return 1;
for (int i = sizeof *value - 1; i >= 0; i--) {
if ((*value)[i] > (*expected_tx_value_min)[i]) break;
if ((*value)[i] < (*expected_tx_value_min)[i]) return 1;
}
consume(sizeof *value);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 2 * sizeof *multi_branch) return 1;
consume(2 * sizeof *multi_branch);
// signature_root
const Root *signature_root = proof;
if (num_proof_bytes < sizeof *signature_root) return 1;
consume(sizeof *signature_root);
// to_selector
const uint8_t *to_selector = proof;
if (num_proof_bytes < sizeof *to_selector) return 1;
if (*to_selector != 1) return 1;
consume(sizeof *to_selector);
// to
const ExecutionAddress *to = proof;
if (num_proof_bytes < sizeof *to) return 1;
if (memcmp(to, expected_tx_to, sizeof *to)) return 1;
consume(sizeof *to);
// sig_root
if (num_proof_bytes) return 1;
/* 24 */ memcpy(&root[0], to, 20); memset(&root[20], 0, 12);
/* 25 */ scratch[0] = 1; memset(&scratch[1], 0, 31);
/* 12 */ hash_combine(&root, &root, &scratch);
/* 6 */ hash_combine(&root, &root, value);
/* 3 */ hash_combine(&root, &root, &multi_branch[0]);
/* 1 */ hash_combine(&root, &multi_branch[1], &root);
// tx_root
hash_combine(&root, &root, signature_root);
} break;
case 0: {
// startgas
const uint64_t *startgas = proof;
if (num_proof_bytes < sizeof *startgas) return 1;
consume(sizeof *startgas);
// &to
const uint32_t *to_offset = proof;
if (num_proof_bytes < sizeof *to_offset) return 1;
if (*to_offset != 140) return 1;
consume(sizeof *to_offset);
// value
const Bytes32 *value = proof;
if (num_proof_bytes < sizeof *value) return 1;
for (int i = sizeof *value - 1; i >= 0; i--) {
if ((*value)[i] > (*expected_tx_value_min)[i]) break;
if ((*value)[i] < (*expected_tx_value_min)[i]) return 1;
}
consume(sizeof *value);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 2 * sizeof *multi_branch) return 1;
consume(2 * sizeof *multi_branch);
// signature_root
const Root *signature_root = proof;
if (num_proof_bytes < sizeof *signature_root) return 1;
consume(sizeof *signature_root);
// to_selector
const uint8_t *to_selector = proof;
if (num_proof_bytes < sizeof *to_selector) return 1;
if (*to_selector != 1) return 1;
consume(sizeof *to_selector);
// to
const ExecutionAddress *to = proof;
if (num_proof_bytes < sizeof *to) return 1;
if (memcmp(to, expected_tx_to, sizeof *to)) return 1;
consume(sizeof *to);
// sig_root
if (num_proof_bytes) return 1;
/* 22 */ memcpy(&root[0], to, 20); memset(&root[20], 0, 12);
/* 23 */ scratch[0] = 1; memset(&scratch[1], 0, 31);
/* 11 */ hash_combine(&scratch, &root, &scratch);
/* 10 */ memcpy(&root[0], startgas, 8); memset(&root[8], 0, 24);
/* 5 */ hash_combine(&root, &root, &scratch);
/* 6 */ hash_combine(&scratch, value, &multi_branch[0]);
/* 3 */ hash_combine(&scratch, &scratch, &zero_hash[1]);
/* 2 */ hash_combine(&root, &multi_branch[1], &root);
/* 1 */ hash_combine(&root, &root, &scratch);
// tx_root
hash_combine(&root, &root, signature_root);
} break;
default: return 1;
}
// transaction_root
/* 3 */ scratch[0] = *tx_selector; memset(&scratch[1], 0, 31);
/* 1 */ hash_combine(&root, &root, &scratch);
// transactions_root
for (int i = 0; i < TX_DEPTH; i++) {
if (*tx_index & ((uint32_t) 1 << i))
hash_combine(&root, tx_branch, &root);
else
hash_combine(&root, &root, tx_branch);
tx_branch++;
}
hash_combine(&root, &root, tx_branch);
if (memcmp(&root, transactions_root, sizeof root)) return 1;
return 0;
}
__attribute__((warn_unused_result))
static int verify_sender_proof(
const void *proof,
size_t num_proof_bytes,
const ExecutionConfig *cfg __attribute__((unused)),
const Root *transactions_root,
const ExecutionAddress *expected_tx_to,
const Bytes32 *expected_tx_value_min,
ExecutionAddress *tx_from)
{
uint8_t y;
Root root, scratch[2];
// &tx_proof
const uint32_t *tx_proof_offset = proof;
if (num_proof_bytes < sizeof *tx_proof_offset) return 1;
if (*tx_proof_offset != 680) return 1;
consume(sizeof *tx_proof_offset);
// tx_index
const uint32_t *tx_index = proof;
if (num_proof_bytes < sizeof *tx_index) return 1;
if (*tx_index >= MAX_TRANSACTIONS_PER_PAYLOAD) return 1;
consume(sizeof *tx_index);
// tx_branch
const Root *tx_branch = proof;
if (num_proof_bytes < (1 + TX_DEPTH) * sizeof *tx_branch) return 1;
consume((1 + TX_DEPTH) * sizeof *tx_branch);
// tx_selector
const uint8_t *tx_selector = proof;
if (num_proof_bytes < sizeof *tx_selector) return 1;
consume(sizeof *tx_selector);
// tx_root
const uint8_t *y_parity;
const Bytes32 *r;
const Bytes32 *s;
switch (*tx_selector) {
case 3: {
// gas
const uint64_t *gas = proof;
if (num_proof_bytes < sizeof *gas) return 1;
consume(sizeof *gas);
// &to
const uint32_t *to_offset = proof;
if (num_proof_bytes < sizeof *to_offset) return 1;
if (*to_offset != 205) return 1;
consume(sizeof *to_offset);
// value
const Bytes32 *value = proof;
if (num_proof_bytes < sizeof *value) return 1;
for (int i = sizeof *value - 1; i >= 0; i--) {
if ((*value)[i] > (*expected_tx_value_min)[i]) break;
if ((*value)[i] < (*expected_tx_value_min)[i]) return 1;
}
consume(sizeof *value);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 3 * sizeof *multi_branch) return 1;
consume(3 * sizeof *multi_branch);
// signature.y_parity
y_parity = proof;
if (num_proof_bytes < sizeof *y_parity) return 1;
if (*y_parity > 1) return 1;
consume(sizeof *y_parity);
// signature.r
r = proof;
if (num_proof_bytes < sizeof *r) return 1;
consume(sizeof *r);
// signature.s
s = proof;
if (num_proof_bytes < sizeof *s) return 1;
consume(sizeof *s);
// to_selector
const uint8_t *to_selector = proof;
if (num_proof_bytes < sizeof *to_selector) return 1;
if (*to_selector != 1) return 1;
consume(sizeof *to_selector);
// to
const ExecutionAddress *to = proof;
if (num_proof_bytes < sizeof *to) return 1;
if (memcmp(to, expected_tx_to, sizeof *to)) return 1;
consume(sizeof *to);
// sig_root
if (num_proof_bytes) return 1;
/* 42 */ memcpy(&root[0], to, 20); memset(&root[20], 0, 12);
/* 43 */ scratch[0][0] = 1; memset(&scratch[0][1], 0, 31);
/* 21 */ hash_combine(&scratch[0], &root, &scratch[0]);
/* 20 */ memcpy(&root[0], gas, 8); memset(&root[8], 0, 24);
/* 10 */ hash_combine(&root, &root, &scratch[0]);
/* 11 */ hash_combine(&scratch[0], value, &multi_branch[0]);
/* 5 */ hash_combine(&root, &root, &scratch[0]);
/* 2 */ hash_combine(&root, &multi_branch[1], &root);
/* 1 */ hash_combine(&root, &root, &multi_branch[2]);
// signature_root
/* 4 */ scratch[0][0] = *y_parity; memset(&scratch[0][1], 0, 31);
/* 2 */ hash_combine(&scratch[0], &scratch[0], r);
/* 3 */ hash_combine(&scratch[1], s, &zero_hash[0]);
/* 1 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
} break;
case 2: {
// gas_limit
const uint64_t *gas_limit = proof;
if (num_proof_bytes < sizeof *gas_limit) return 1;
consume(sizeof *gas_limit);
// &destination
const uint32_t *destination_offset = proof;
if (num_proof_bytes < sizeof *destination_offset) return 1;
if (*destination_offset != 205) return 1;
consume(sizeof *destination_offset);
// amount
const Bytes32 *amount = proof;
if (num_proof_bytes < sizeof *amount) return 1;
for (int i = sizeof *amount - 1; i >= 0; i--) {
if ((*amount)[i] > (*expected_tx_value_min)[i]) break;
if ((*amount)[i] < (*expected_tx_value_min)[i]) return 1;
}
consume(sizeof *amount);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 3 * sizeof *multi_branch) return 1;
consume(3 * sizeof *multi_branch);
// signature.y_parity
y_parity = proof;
if (num_proof_bytes < sizeof *y_parity) return 1;
if (*y_parity > 1) return 1;
consume(sizeof *y_parity);
// signature.r
r = proof;
if (num_proof_bytes < sizeof *r) return 1;
consume(sizeof *r);
// signature.s
s = proof;
if (num_proof_bytes < sizeof *s) return 1;
consume(sizeof *s);
// destination_selector
const uint8_t *destination_selector = proof;
if (num_proof_bytes < sizeof *destination_selector) return 1;
if (*destination_selector != 1) return 1;
consume(sizeof *destination_selector);
// destination
const ExecutionAddress *dest = proof;
if (num_proof_bytes < sizeof *dest) return 1;
if (memcmp(dest, expected_tx_to, sizeof *dest)) return 1;
consume(sizeof *dest);
// sig_root
if (num_proof_bytes) return 1;
/* 42 */ memcpy(&root[0], dest, 20); memset(&root[20], 0, 12);
/* 43 */ scratch[0][0] = 1; memset(&scratch[0][1], 0, 31);
/* 21 */ hash_combine(&scratch[0], &root, &scratch[0]);
/* 20 */ memcpy(&root[0], gas_limit, 8); memset(&root[8], 0, 24);
/* 10 */ hash_combine(&root, &root, &scratch[0]);
/* 11 */ hash_combine(&scratch[0], amount, &multi_branch[0]);
/* 5 */ hash_combine(&root, &root, &scratch[0]);
/* 2 */ hash_combine(&root, &multi_branch[1], &root);
/* 1 */ hash_combine(&root, &root, &multi_branch[2]);
// signature_root
/* 4 */ scratch[0][0] = *y_parity; memset(&scratch[0][1], 0, 31);
/* 2 */ hash_combine(&scratch[0], &scratch[0], r);
/* 3 */ hash_combine(&scratch[1], s, &zero_hash[0]);
/* 1 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
} break;
case 1: {
// &to
const uint32_t *to_offset = proof;
if (num_proof_bytes < sizeof *to_offset) return 1;
if (*to_offset != 165) return 1;
consume(sizeof *to_offset);
// value
const Bytes32 *value = proof;
if (num_proof_bytes < sizeof *value) return 1;
for (int i = sizeof *value - 1; i >= 0; i--) {
if ((*value)[i] > (*expected_tx_value_min)[i]) break;
if ((*value)[i] < (*expected_tx_value_min)[i]) return 1;
}
consume(sizeof *value);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 2 * sizeof *multi_branch) return 1;
consume(2 * sizeof *multi_branch);
// signature.y_parity
y_parity = proof;
if (num_proof_bytes < sizeof *y_parity) return 1;
if (*y_parity > 1) return 1;
consume(sizeof *y_parity);
// signature.r
r = proof;
if (num_proof_bytes < sizeof *r) return 1;
consume(sizeof *r);
// signature.s
s = proof;
if (num_proof_bytes < sizeof *s) return 1;
consume(sizeof *s);
// to_selector
const uint8_t *to_selector = proof;
if (num_proof_bytes < sizeof *to_selector) return 1;
if (*to_selector != 1) return 1;
consume(sizeof *to_selector);
// to
const ExecutionAddress *to = proof;
if (num_proof_bytes < sizeof *to) return 1;
if (memcmp(to, expected_tx_to, sizeof *to)) return 1;
consume(sizeof *to);
// sig_root
if (num_proof_bytes) return 1;
/* 24 */ memcpy(&root[0], to, 20); memset(&root[20], 0, 12);
/* 25 */ scratch[0][0] = 1; memset(&scratch[0][1], 0, 31);
/* 12 */ hash_combine(&root, &root, &scratch[0]);
/* 6 */ hash_combine(&root, &root, value);
/* 3 */ hash_combine(&root, &root, &multi_branch[0]);
/* 1 */ hash_combine(&root, &multi_branch[1], &root);
// signature_root
/* 4 */ scratch[0][0] = *y_parity; memset(&scratch[0][1], 0, 31);
/* 2 */ hash_combine(&scratch[0], &scratch[0], r);
/* 3 */ hash_combine(&scratch[1], s, &zero_hash[0]);
/* 1 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
} break;
case 0: {
// startgas
const uint64_t *startgas = proof;
if (num_proof_bytes < sizeof *startgas) return 1;
consume(sizeof *startgas);
// &to
const uint32_t *to_offset = proof;
if (num_proof_bytes < sizeof *to_offset) return 1;
if (*to_offset != 204) return 1;
consume(sizeof *to_offset);
// value
const Bytes32 *value = proof;
if (num_proof_bytes < sizeof *value) return 1;
for (int i = sizeof *value - 1; i >= 0; i--) {
if ((*value)[i] > (*expected_tx_value_min)[i]) break;
if ((*value)[i] < (*expected_tx_value_min)[i]) return 1;
}
consume(sizeof *value);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 2 * sizeof *multi_branch) return 1;
consume(2 * sizeof *multi_branch);
// signature.v
const Bytes32 *v = proof;
if (num_proof_bytes < sizeof *v) return 1;
y = (((*v)[0] & 0x1) == 0);
y_parity = &y;
consume(sizeof *v);
// signature.r
r = proof;
if (num_proof_bytes < sizeof *r) return 1;
consume(sizeof *r);
// signature.s
s = proof;
if (num_proof_bytes < sizeof *s) return 1;
consume(sizeof *s);
// to_selector
const uint8_t *to_selector = proof;
if (num_proof_bytes < sizeof *to_selector) return 1;
if (*to_selector != 1) return 1;
consume(sizeof *to_selector);
// to
const ExecutionAddress *to = proof;
if (num_proof_bytes < sizeof *to) return 1;
if (memcmp(to, expected_tx_to, sizeof *to)) return 1;
consume(sizeof *to);
// sig_root
if (num_proof_bytes) return 1;
/* 22 */ memcpy(&root[0], to, 20); memset(&root[20], 0, 12);
/* 23 */ scratch[0][0] = 1; memset(&scratch[0][1], 0, 31);
/* 11 */ hash_combine(&scratch[0], &root, &scratch[0]);
/* 10 */ memcpy(&root[0], startgas, 8); memset(&root[8], 0, 24);
/* 5 */ hash_combine(&root, &root, &scratch[0]);
/* 6 */ hash_combine(&scratch[0], value, &multi_branch[0]);
/* 3 */ hash_combine(&scratch[0], &scratch[0], &zero_hash[1]);
/* 2 */ hash_combine(&root, &multi_branch[1], &root);
/* 1 */ hash_combine(&root, &root, &scratch[0]);
// signature_root
/* 2 */ hash_combine(&scratch[0], v, r);
/* 3 */ hash_combine(&scratch[1], s, &zero_hash[0]);
/* 1 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
} break;
default: return 1;
}
// tx_from
uint8_t ser_sig[64];
for (size_t i = 0; i < 32; i++) {
ser_sig[i] = (*r)[31 - i];
ser_sig[i + 32] = (*s)[31 - i];
}
secp256k1_ecdsa_recoverable_signature recover_sig;
if (!secp256k1_ecdsa_recoverable_signature_parse_compact(
secp256k1_context_static, &recover_sig, ser_sig, *y_parity))
{
return 1;
}
secp256k1_pubkey public_key;
if (!secp256k1_ecdsa_recover(
secp256k1_context_static, &public_key, &recover_sig, &root[0]))
{
return 1;
}
uint8_t uncompressed[65];
size_t n = sizeof uncompressed;
if (!secp256k1_ec_pubkey_serialize(
secp256k1_context_static, uncompressed, &n,
&public_key, SECP256K1_EC_UNCOMPRESSED))
{
debug("secp256k1_ec_pubkey_serialize failed\n");
}
if (n != sizeof uncompressed)
debug("secp256k1_ec_pubkey_serialize failed: Length %zu\n", n);
sha3_context ctx;
if (sha3_Init(&ctx, 256))
debug("sha3_Init failed\n");
if (sha3_SetFlags(&ctx, SHA3_FLAGS_KECCAK) != SHA3_FLAGS_KECCAK)
debug("sha3_SetFlags failed\n");
sha3_Update(&ctx, uncompressed, sizeof uncompressed);
memcpy(tx_from, &((const uint8_t *) sha3_Finalize(&ctx))[12], 20);
// tx_root
hash_combine(&root, &root, &scratch[0]);
// transaction_root
/* 3 */ scratch[0][0] = *tx_selector; memset(&scratch[0][1], 0, 31);
/* 1 */ hash_combine(&root, &root, &scratch[0]);
// transactions_root
for (int i = 0; i < TX_DEPTH; i++) {
if (*tx_index & ((uint32_t) 1 << i))
hash_combine(&root, tx_branch, &root);
else
hash_combine(&root, &root, tx_branch);
tx_branch++;
}
hash_combine(&root, &root, tx_branch);
if (memcmp(&root, transactions_root, sizeof root)) return 1;
return 0;
}
__attribute__((warn_unused_result))
static int verify_info_proof(
const void *proof,
size_t num_proof_bytes,
const ExecutionConfig *cfg,
const Root *transactions_root,
TransactionInfo *info)
{
memset(info, 0, sizeof *info);
uint8_t y;
Root root, scratch[2];
// &tx_proof
const uint32_t *tx_proof_offset = proof;
if (num_proof_bytes < sizeof *tx_proof_offset) return 1;
if (*tx_proof_offset != 680) return 1;
consume(sizeof *tx_proof_offset);
// tx_index
const uint32_t *tx_index = proof;
if (num_proof_bytes < sizeof *tx_index) return 1;
if (*tx_index >= MAX_TRANSACTIONS_PER_PAYLOAD) return 1;
info->tx_index = *tx_index;
consume(sizeof *tx_index);
// tx_branch
const Root *tx_branch = proof;
if (num_proof_bytes < (1 + TX_DEPTH) * sizeof *tx_branch) return 1;
consume((1 + TX_DEPTH) * sizeof *tx_branch);
// tx_selector
const uint8_t *tx_selector = proof;
if (num_proof_bytes < sizeof *tx_selector) return 1;
consume(sizeof *tx_selector);
// tx_root
const uint8_t *y_parity;
const Bytes32 *r;
const Bytes32 *s;
switch (*tx_selector) {
case 3: {
// nonce
const uint64_t *nonce = proof;
if (num_proof_bytes < sizeof *nonce) return 1;
info->nonce = *nonce;
consume(sizeof *nonce);
// max_priority_fee_per_gas
const Bytes32 *prio = proof;
if (num_proof_bytes < sizeof *prio) return 1;
memcpy(info->limits.max_priority_fee_per_gas, prio, sizeof *prio);
consume(sizeof *prio);
// max_fee_per_gas
const Bytes32 *max_fee = proof;
if (num_proof_bytes < sizeof *max_fee) return 1;
memcpy(info->limits.max_fee_per_gas, max_fee, sizeof *max_fee);
consume(sizeof *max_fee);
// gas
const uint64_t *gas = proof;
if (num_proof_bytes < sizeof *gas) return 1;
info->limits.gas = *gas;
consume(sizeof *gas);
// &to
const uint32_t *to_offset = proof;
if (num_proof_bytes < sizeof *to_offset) return 1;
if (*to_offset != 245) return 1;
consume(sizeof *to_offset);
// value
const Bytes32 *value = proof;
if (num_proof_bytes < sizeof *value) return 1;
memcpy(info->tx_value, value, sizeof *value);
consume(sizeof *value);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 2 * sizeof *multi_branch) return 1;
consume(2 * sizeof *multi_branch);
// signature.y_parity
y_parity = proof;
if (num_proof_bytes < sizeof *y_parity) return 1;
if (*y_parity > 1) return 1;
consume(sizeof *y_parity);
// signature.r
r = proof;
if (num_proof_bytes < sizeof *r) return 1;
consume(sizeof *r);
// signature.s
s = proof;
if (num_proof_bytes < sizeof *s) return 1;
consume(sizeof *s);
// to_selector
const uint8_t *to_selector = proof;
if (num_proof_bytes < sizeof *to_selector) return 1;
consume(sizeof *to_selector);
// to
switch (*to_selector) {
case 0: {
info->tx_to.destination_type = DESTINATION_TYPE_CREATE;
if (num_proof_bytes) return 1;
/* 21 */ memcpy(&scratch[0], &zero_hash[1], 32);
} break;
case 1: {
info->tx_to.destination_type = DESTINATION_TYPE_REGULAR;
const ExecutionAddress *to = proof;
if (num_proof_bytes < sizeof *to) return 1;
memcpy(info->tx_to.address, to, sizeof *to);
consume(sizeof *to);
if (num_proof_bytes) return 1;
/* 42 */ memcpy(&root[0], to, 20); memset(&root[20], 0, 12);
/* 43 */ scratch[0][0] = 1; memset(&scratch[0][1], 0, 31);
/* 21 */ hash_combine(&scratch[0], &root, &scratch[0]);
} break;
default: return 1;
}
// sig_root
/* 20 */ memcpy(&root[0], gas, 8); memset(&root[8], 0, 24);
/* 10 */ hash_combine(&root, &root, &scratch[0]);
/* 11 */ hash_combine(&scratch[0], value, &multi_branch[0]);
/* 5 */ hash_combine(&scratch[0], &root, &scratch[0]);
/* 17 */ memcpy(&root[0], nonce, 8); memset(&root[8], 0, 24);
/* 8 */ hash_combine(&root, &cfg->chain_id, &root);
/* 9 */ hash_combine(&scratch[1], prio, max_fee);
/* 4 */ hash_combine(&root, &root, &scratch[1]);
/* 2 */ hash_combine(&root, &root, &scratch[0]);
/* 1 */ hash_combine(&root, &root, &multi_branch[1]);
// signature_root
/* 4 */ scratch[0][0] = *y_parity; memset(&scratch[0][1], 0, 31);
/* 2 */ hash_combine(&scratch[0], &scratch[0], r);
/* 3 */ hash_combine(&scratch[1], s, &zero_hash[0]);
/* 1 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
} break;
case 2: {
// nonce
const uint64_t *nonce = proof;
if (num_proof_bytes < sizeof *nonce) return 1;
info->nonce = *nonce;
consume(sizeof *nonce);
// max_priority_fee_per_gas
const Bytes32 *prio = proof;
if (num_proof_bytes < sizeof *prio) return 1;
memcpy(info->limits.max_priority_fee_per_gas, prio, sizeof *prio);
consume(sizeof *prio);
// max_fee_per_gas
const Bytes32 *max_fee = proof;
if (num_proof_bytes < sizeof *max_fee) return 1;
memcpy(info->limits.max_fee_per_gas, max_fee, sizeof *max_fee);
consume(sizeof *max_fee);
// gas_limit
const uint64_t *gas_limit = proof;
if (num_proof_bytes < sizeof *gas_limit) return 1;
info->limits.gas = *gas_limit;
consume(sizeof *gas_limit);
// &destination
const uint32_t *destination_offset = proof;
if (num_proof_bytes < sizeof *destination_offset) return 1;
if (*destination_offset != 245) return 1;
consume(sizeof *destination_offset);
// amount
const Bytes32 *amount = proof;
if (num_proof_bytes < sizeof *amount) return 1;
memcpy(info->tx_value, amount, sizeof *amount);
consume(sizeof *amount);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 2 * sizeof *multi_branch) return 1;
consume(2 * sizeof *multi_branch);
// signature.y_parity
y_parity = proof;
if (num_proof_bytes < sizeof *y_parity) return 1;
if (*y_parity > 1) return 1;
consume(sizeof *y_parity);
// signature.r
r = proof;
if (num_proof_bytes < sizeof *r) return 1;
consume(sizeof *r);
// signature.s
s = proof;
if (num_proof_bytes < sizeof *s) return 1;
consume(sizeof *s);
// destination_selector
const uint8_t *destination_selector = proof;
if (num_proof_bytes < sizeof *destination_selector) return 1;
if (*destination_selector != 1) return 1;
consume(sizeof *destination_selector);
// destination
switch (*destination_selector) {
case 0: {
info->tx_to.destination_type = DESTINATION_TYPE_CREATE;
if (num_proof_bytes) return 1;
/* 21 */ memcpy(&scratch[0], &zero_hash[1], 32);
} break;
case 1: {
info->tx_to.destination_type = DESTINATION_TYPE_REGULAR;
const ExecutionAddress *d = proof;
if (num_proof_bytes < sizeof *d) return 1;
memcpy(info->tx_to.address, d, sizeof *d);
consume(sizeof *d);
if (num_proof_bytes) return 1;
/* 42 */ memcpy(&root[0], d, 20); memset(&root[20], 0, 12);
/* 43 */ scratch[0][0] = 1; memset(&scratch[0][1], 0, 31);
/* 21 */ hash_combine(&scratch[0], &root, &scratch[0]);
} break;
default: return 1;
}
// sig_root
/* 20 */ memcpy(&root[0], gas_limit, 8); memset(&root[8], 0, 24);
/* 10 */ hash_combine(&root, &root, &scratch[0]);
/* 11 */ hash_combine(&scratch[0], amount, &multi_branch[0]);
/* 5 */ hash_combine(&scratch[0], &root, &scratch[0]);
/* 17 */ memcpy(&root[0], nonce, 8); memset(&root[8], 0, 24);
/* 8 */ hash_combine(&root, &cfg->chain_id, &root);
/* 9 */ hash_combine(&scratch[1], prio, max_fee);
/* 4 */ hash_combine(&root, &root, &scratch[1]);
/* 2 */ hash_combine(&root, &root, &scratch[0]);
/* 1 */ hash_combine(&root, &root, &multi_branch[1]);
// signature_root
/* 4 */ scratch[0][0] = *y_parity; memset(&scratch[0][1], 0, 31);
/* 2 */ hash_combine(&scratch[0], &scratch[0], r);
/* 3 */ hash_combine(&scratch[1], s, &zero_hash[0]);
/* 1 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
} break;
case 1: {
// nonce
const uint64_t *nonce = proof;
if (num_proof_bytes < sizeof *nonce) return 1;
info->nonce = *nonce;
consume(sizeof *nonce);
// gas_price
const Bytes32 *price = proof;
if (num_proof_bytes < sizeof *price) return 1;
memcpy(info->limits.max_priority_fee_per_gas, price, sizeof *price);
memcpy(info->limits.max_fee_per_gas, price, sizeof *price);
consume(sizeof *price);
// gas
const uint64_t *gas = proof;
if (num_proof_bytes < sizeof *gas) return 1;
info->limits.gas = *gas;
consume(sizeof *gas);
// &to
const uint32_t *to_offset = proof;
if (num_proof_bytes < sizeof *to_offset) return 1;
if (*to_offset != 181) return 1;
consume(sizeof *to_offset);
// value
const Bytes32 *value = proof;
if (num_proof_bytes < sizeof *value) return 1;
memcpy(info->tx_value, value, sizeof *value);
consume(sizeof *value);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 1 * sizeof *multi_branch) return 1;
consume(1 * sizeof *multi_branch);
// signature.y_parity
y_parity = proof;
if (num_proof_bytes < sizeof *y_parity) return 1;
if (*y_parity > 1) return 1;
consume(sizeof *y_parity);
// signature.r
r = proof;
if (num_proof_bytes < sizeof *r) return 1;
consume(sizeof *r);
// signature.s
s = proof;
if (num_proof_bytes < sizeof *s) return 1;
consume(sizeof *s);
// to_selector
const uint8_t *to_selector = proof;
if (num_proof_bytes < sizeof *to_selector) return 1;
if (*to_selector != 1) return 1;
consume(sizeof *to_selector);
// to
switch (*to_selector) {
case 0: {
info->tx_to.destination_type = DESTINATION_TYPE_CREATE;
if (num_proof_bytes) return 1;
/* 12 */ memcpy(&root, &zero_hash[1], 32);
} break;
case 1: {
info->tx_to.destination_type = DESTINATION_TYPE_REGULAR;
const ExecutionAddress *to = proof;
if (num_proof_bytes < sizeof *to) return 1;
memcpy(info->tx_to.address, to, sizeof *to);
consume(sizeof *to);
if (num_proof_bytes) return 1;
/* 24 */ memcpy(&root[0], to, 20); memset(&root[20], 0, 12);
/* 25 */ scratch[0][0] = 1; memset(&scratch[0][1], 0, 31);
/* 12 */ hash_combine(&root, &root, &scratch[0]);
} break;
default: return 1;
}
// sig_root
/* 6 */ hash_combine(&scratch[1], &root, value);
/* 11 */ memcpy(&root[0], gas, 8); memset(&root[8], 0, 24);
/* 5 */ hash_combine(&scratch[0], price, &root);
/* 9 */ memcpy(&root[0], nonce, 8); memset(&root[8], 0, 24);
/* 4 */ hash_combine(&root, &cfg->chain_id, &root);
/* 2 */ hash_combine(&root, &root, &scratch[0]);
/* 3 */ hash_combine(&scratch[0], &scratch[1], &multi_branch[0]);
/* 1 */ hash_combine(&root, &root, &scratch[0]);
// signature_root
/* 4 */ scratch[0][0] = *y_parity; memset(&scratch[0][1], 0, 31);
/* 2 */ hash_combine(&scratch[0], &scratch[0], r);
/* 3 */ hash_combine(&scratch[1], s, &zero_hash[0]);
/* 1 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
} break;
case 0: {
// nonce
const uint64_t *nonce = proof;
if (num_proof_bytes < sizeof *nonce) return 1;
info->nonce = *nonce;
consume(sizeof *nonce);
// gasprice
const Bytes32 *price = proof;
if (num_proof_bytes < sizeof *price) return 1;
memcpy(info->limits.max_priority_fee_per_gas, price, sizeof *price);
memcpy(info->limits.max_fee_per_gas, price, sizeof *price);
consume(sizeof *price);
// startgas
const uint64_t *startgas = proof;
if (num_proof_bytes < sizeof *startgas) return 1;
info->limits.gas = *startgas;
consume(sizeof *startgas);
// &to
const uint32_t *to_offset = proof;
if (num_proof_bytes < sizeof *to_offset) return 1;
if (*to_offset != 212) return 1;
consume(sizeof *to_offset);
// value
const Bytes32 *value = proof;
if (num_proof_bytes < sizeof *value) return 1;
memcpy(info->tx_value, value, sizeof *value);
consume(sizeof *value);
// multi_branch
const Root *multi_branch = proof;
if (num_proof_bytes < 1 * sizeof *multi_branch) return 1;
consume(1 * sizeof *multi_branch);
// signature.v
const Bytes32 *v = proof;
if (num_proof_bytes < sizeof *v) return 1;
y = (((*v)[0] & 0x1) == 0);
y_parity = &y;
consume(sizeof *v);
// signature.r
r = proof;
if (num_proof_bytes < sizeof *r) return 1;
consume(sizeof *r);
// signature.s
s = proof;
if (num_proof_bytes < sizeof *s) return 1;
consume(sizeof *s);
// to_selector
const uint8_t *to_selector = proof;
if (num_proof_bytes < sizeof *to_selector) return 1;
if (*to_selector != 1) return 1;
consume(sizeof *to_selector);
// to
switch (*to_selector) {
case 0: {
info->tx_to.destination_type = DESTINATION_TYPE_CREATE;
if (num_proof_bytes) return 1;
/* 11 */ memcpy(&scratch[0], &zero_hash[1], 32);
} break;
case 1: {
info->tx_to.destination_type = DESTINATION_TYPE_REGULAR;
const ExecutionAddress *to = proof;
if (num_proof_bytes < sizeof *to) return 1;
memcpy(info->tx_to.address, to, sizeof *to);
consume(sizeof *to);
if (num_proof_bytes) return 1;
/* 22 */ memcpy(&root[0], to, 20); memset(&root[20], 0, 12);
/* 23 */ scratch[0][0] = 1; memset(&scratch[0][1], 0, 31);
/* 11 */ hash_combine(&scratch[0], &root, &scratch[0]);
} break;
default: return 1;
}
// sig_root
/* 10 */ memcpy(&root[0], startgas, 8); memset(&root[8], 0, 24);
/* 5 */ hash_combine(&scratch[0], &root, &scratch[0]);
/* 6 */ hash_combine(&scratch[1], value, &multi_branch[0]);
/* 3 */ hash_combine(&scratch[1], &scratch[1], &zero_hash[1]);
/* 8 */ memcpy(&root[0], nonce, 8); memset(&root[8], 0, 24);
/* 4 */ hash_combine(&root, &root, price);
/* 2 */ hash_combine(&root, &root, &scratch[0]);
/* 1 */ hash_combine(&root, &root, &scratch[1]);
// signature_root
/* 2 */ hash_combine(&scratch[0], v, r);
/* 3 */ hash_combine(&scratch[1], s, &zero_hash[0]);
/* 1 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
} break;
default: return 1;
}
// tx_from
uint8_t ser_sig[64];
for (size_t i = 0; i < 32; i++) {
ser_sig[i] = (*r)[31 - i];
ser_sig[i + 32] = (*s)[31 - i];
}
secp256k1_ecdsa_recoverable_signature recover_sig;
if (!secp256k1_ecdsa_recoverable_signature_parse_compact(
secp256k1_context_static, &recover_sig, ser_sig, *y_parity))
{
return 1;
}
secp256k1_pubkey public_key;
if (!secp256k1_ecdsa_recover(
secp256k1_context_static, &public_key, &recover_sig, &root[0]))
{
return 1;
}
uint8_t uncompressed[65];
size_t n = sizeof uncompressed;
if (!secp256k1_ec_pubkey_serialize(
secp256k1_context_static, uncompressed, &n,
&public_key, SECP256K1_EC_UNCOMPRESSED))
{
debug("secp256k1_ec_pubkey_serialize failed\n");
}
if (n != sizeof uncompressed)
debug("secp256k1_ec_pubkey_serialize failed: Length %zu\n", n);
sha3_context ctx;
if (sha3_Init(&ctx, 256))
debug("sha3_Init failed\n");
if (sha3_SetFlags(&ctx, SHA3_FLAGS_KECCAK) != SHA3_FLAGS_KECCAK)
debug("sha3_SetFlags failed\n");
sha3_Update(&ctx, uncompressed, sizeof uncompressed);
memcpy(info->tx_from, &((const uint8_t *) sha3_Finalize(&ctx))[12], 20);
// tx_to.address
switch (info->tx_to.destination_type) {
case DESTINATION_TYPE_REGULAR: break;
case DESTINATION_TYPE_CREATE: {
ExecutionAddress *address = &info->tx_to.address;
uint8_t n = 0;
uint8_t rlp_data[30];
rlp_data[0] = 0x80 + 20;
memcpy(&rlp_data[1], info->tx_from, 20);
if (info->nonce <= 0x7f)
rlp_data[21] = (uint8_t) info->nonce;
else {
for (int i = 64 - 8; i >= 0; i -= 8) {
uint8_t b = (uint8_t) (info->nonce >> i);
if (b || n)
rlp_data[22 + n++] = b;
}
rlp_data[21] = 0x80 + n;
}
n += 22;
if (sha3_Init(&ctx, 256))
debug("sha3_Init failed\n");
if (sha3_SetFlags(&ctx, SHA3_FLAGS_KECCAK) != SHA3_FLAGS_KECCAK)
debug("sha3_SetFlags failed\n");
sha3_Update(&ctx, rlp_data, n);
memcpy(address, &((const uint8_t *) sha3_Finalize(&ctx))[12], 20);
} break;
}
// tx_root
hash_combine(&info->tx_hash, &root, &scratch[0]);
// transaction_root
/* 3 */ scratch[0][0] = *tx_selector; memset(&scratch[0][1], 0, 31);
/* 1 */ hash_combine(&root, &info->tx_hash, &scratch[0]);
// transactions_root
for (int i = 0; i < TX_DEPTH; i++) {
if (*tx_index & ((uint32_t) 1 << i))
hash_combine(&root, tx_branch, &root);
else
hash_combine(&root, &root, tx_branch);
tx_branch++;
}
hash_combine(&root, &root, tx_branch);
if (memcmp(&root, transactions_root, sizeof root)) return 1;
return 0;
}
////////////////////////////////////////////////////////////////////////////////
#define STR(x) #x
#define QUOTE(x) STR(x)
__asm__ (
".section .rodata\n"
".global transactions_root\n"
"transactions_root:\n"
".incbin \"proofs/transactions_root.ssz\"\n"
".global proof\n"
"proof:\n"
".incbin \"proofs/" QUOTE(PROOF_TYPE) "_" QUOTE(PROOF_INDEX) ".ssz\"\n"
".global num_proof_bytes\n"
".set num_proof_bytes, . - proof\n"
".section .text\n"
);
extern const uint8_t transactions_root[];
extern const uint8_t proof[];
extern const uint8_t num_proof_bytes[];
const ExecutionConfig cfg = {
.chain_id = {
0x39, 0x05
}
};
typedef enum {
NIL,
TRANSACTION,
AMOUNT,
SENDER,
INFO
} proof_type;
void main(void)
{
k_msleep(1000);
printk("Union %s_%s (%zu bytes)\n",
QUOTE(PROOF_TYPE), QUOTE(PROOF_INDEX), (size_t) num_proof_bytes);
timing_init();
timing_start();
timing_t start_time, end_time;
switch (PROOF_TYPE) {
case NIL: {
} break;
case TRANSACTION: {
const Root *expected_tx_hash = (const Root *) &proof[0];
start_time = timing_counter_get();
if (verify_transaction_proof(
proof, (size_t) num_proof_bytes,
&cfg, (const Root *) transactions_root,
expected_tx_hash))
{
printk("ERROR\n");
break;
}
end_time = timing_counter_get();
printk("tx_index = %u\n", proof[33]);
} break;
case AMOUNT: {
const ExecutionAddress expected_tx_to = {
0xd8, 0xda, 0x6b, 0xf2, 0x69, 0x64, 0xaf, 0x9d, 0x7e, 0xed,
0x9e, 0x03, 0xe5, 0x34, 0x15, 0xd3, 0x7a, 0xa9, 0x60, 0x45,
};
const Bytes32 expected_tx_value_min = {
0x00, 0xca, 0x9a, 0x3b
};
start_time = timing_counter_get();
if (verify_amount_proof(
proof, (size_t) num_proof_bytes,
&cfg, (const Root *) transactions_root,
&expected_tx_to, &expected_tx_value_min))
{
printk("ERROR\n");
break;
}
end_time = timing_counter_get();
printk("OK\n");
} break;
case SENDER: {
const ExecutionAddress expected_tx_to = {
0xd8, 0xda, 0x6b, 0xf2, 0x69, 0x64, 0xaf, 0x9d, 0x7e, 0xed,
0x9e, 0x03, 0xe5, 0x34, 0x15, 0xd3, 0x7a, 0xa9, 0x60, 0x45,
};
const Bytes32 expected_tx_value_min = {
0x00, 0xca, 0x9a, 0x3b
};
ExecutionAddress tx_from;
start_time = timing_counter_get();
if (verify_sender_proof(
proof, (size_t) num_proof_bytes,
&cfg, (const Root *) transactions_root,
&expected_tx_to, &expected_tx_value_min,
&tx_from))
{
printk("ERROR\n");
break;
}
end_time = timing_counter_get();
printk("tx_from = 0x");
for (size_t i = 0; i < sizeof tx_from; i++)
printk("%02x", tx_from[i]);
printk("\n");
} break;
case INFO: {
TransactionInfo info;
start_time = timing_counter_get();
if (verify_info_proof(
proof, (size_t) num_proof_bytes,
&cfg, (const Root *) transactions_root,
&info))
{
printk("ERROR\n");
break;
}
end_time = timing_counter_get();
printk("info = {\n");
printk(" tx_index = %lu\n", (unsigned long) info.tx_index);
printk(" tx_hash = 0x");
for (size_t i = 0; i < sizeof info.tx_hash; i++)
printk("%02x", info.tx_hash[i]);
printk("\n");
printk(" tx_from = 0x");
for (size_t i = 0; i < sizeof info.tx_from; i++)
printk("%02x", info.tx_from[i]);
printk("\n");
printk(" nonce = %llu\n", (unsigned long long) info.nonce);
printk(" tx_to = {\n");
printk(" destination_type = %u\n", info.tx_to.destination_type);
printk(" address = 0x");
for (size_t i = 0; i < sizeof info.tx_to.address; i++)
printk("%02x", info.tx_to.address[i]);
printk("\n");
printk(" }\n");
printk(" tx_value = 0x");
for (int i = sizeof info.tx_value - 1; i >= 0; i--)
printk("%02x", info.tx_value[i]);
printk("\n");
printk(" limits = {\n");
printk(" max_priority_fee_per_gas = 0x");
for (int i = sizeof (Bytes32) - 1; i >= 0; i--)
printk("%02x", info.limits.max_priority_fee_per_gas[i]);
printk("\n");
printk(" max_fee_per_gas = 0x");
for (int i = sizeof (Bytes32) - 1; i >= 0; i--)
printk("%02x", info.limits.max_fee_per_gas[i]);
printk("\n");
printk(" gas = %llu\n", (unsigned long long) info.limits.gas);
printk(" }\n");
printk("}\n");
} break;
}
uint64_t total_cycles = timing_cycles_get(&start_time, &end_time);
uint64_t total_ns = timing_cycles_to_ns(total_cycles);
printk("cycles = %llu (%llu.%06llu ms)\n",
(unsigned long long) total_cycles,
(unsigned long long) (total_ns / 1000000),
(unsigned long long) (total_ns % 1000000));
timing_stop();
}