608 lines
20 KiB
C
608 lines
20 KiB
C
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// Only one proof is verified at a time - create with `create_proofs.py`
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// TRANSACTION, AMOUNT, SENDER, INFO
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#define PROOF_TYPE INFO
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// 0, 1, 2, 3, 4
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#define PROOF_INDEX 4
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/*******************************************************************************
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prj.conf:
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CONFIG_NRF_OBERON=y
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CONFIG_TIMING_FUNCTIONS=y
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CMakeLists.txt:
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target_link_libraries(app PRIVATE nrfxlib_crypto)
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*******************************************************************************/
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#include <stdint.h>
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#include <string.h>
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#include <zephyr/kernel.h>
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#include <zephyr/timing/timing.h>
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#include <ocrypto_sha256.h>
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#if DEBUG
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#define debug(...) printk(__VA_ARGS__)
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#else
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#define debug(...) (void) 0
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#endif
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#define array_count(array) ((size_t)(sizeof(array) / sizeof((array)[0])))
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#define TX_DEPTH (20)
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#define MAX_TRANSACTIONS_PER_PAYLOAD ((uint32_t) 1 << TX_DEPTH)
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typedef uint8_t Bytes20[20];
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typedef uint8_t Bytes32[32];
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typedef Bytes20 ExecutionAddress;
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typedef Bytes32 Hash32;
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typedef Bytes32 Root;
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typedef enum __attribute__((packed)) {
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DESTINATION_TYPE_REGULAR = 0x00,
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DESTINATION_TYPE_CREATE = 0x01
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} DestinationType;
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typedef struct {
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DestinationType destination_type;
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ExecutionAddress address;
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} DestinationAddress;
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typedef struct {
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Bytes32 max_priority_fee_per_gas;
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Bytes32 max_fee_per_gas;
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uint64_t gas;
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} TransactionLimits;
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typedef struct {
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uint32_t tx_index;
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Hash32 tx_hash;
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ExecutionAddress tx_from;
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uint64_t nonce;
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DestinationAddress tx_to;
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Bytes32 tx_value;
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TransactionLimits limits;
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} TransactionInfo;
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static const Root zero_hash[] = {
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{0}
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};
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typedef struct {
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Bytes32 chain_id;
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} ExecutionConfig;
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static void hash_combine(Root *root, const Root *a, const Root *b)
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{
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ocrypto_sha256_ctx ctx;
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ocrypto_sha256_init(&ctx);
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ocrypto_sha256_update(&ctx, &(*a)[0], sizeof *a);
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ocrypto_sha256_update(&ctx, &(*b)[0], sizeof *b);
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ocrypto_sha256_final(&ctx, &(*root)[0]);
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}
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#define consume(n) \
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do { \
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proof = (const uint8_t *) proof + (n); \
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num_proof_bytes -= (n); \
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} while (0)
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__attribute__((warn_unused_result))
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static int verify_transaction_proof(
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const void *proof,
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size_t num_proof_bytes,
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const ExecutionConfig *cfg __attribute__((unused)),
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const Root *transactions_root,
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const Root *expected_tx_hash)
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{
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Root root;
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// payload_root
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const Root *payload_root = proof;
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if (num_proof_bytes < sizeof *payload_root) return 1;
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if (memcmp(payload_root, expected_tx_hash, sizeof *payload_root)) return 1;
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consume(sizeof *payload_root);
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// tx_hash
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const Root *tx_hash = proof;
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if (num_proof_bytes < sizeof *tx_hash) return 1;
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consume(sizeof *tx_hash);
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// transaction_root
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hash_combine(&root, payload_root, tx_hash);
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// tx_index
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const uint32_t *tx_index = proof;
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if (num_proof_bytes < sizeof *tx_index) return 1;
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if (*tx_index >= MAX_TRANSACTIONS_PER_PAYLOAD) return 1;
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consume(sizeof *tx_index);
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// transactions_root
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const Root *tx_branch = proof;
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if (num_proof_bytes < (1 + TX_DEPTH) * sizeof *tx_branch) return 1;
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for (int i = 0; i < TX_DEPTH; i++) {
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if (*tx_index & ((uint32_t) 1 << i))
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hash_combine(&root, tx_branch, &root);
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else
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hash_combine(&root, &root, tx_branch);
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tx_branch++;
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}
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hash_combine(&root, &root, tx_branch);
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if (memcmp(&root, transactions_root, sizeof root)) return 1;
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consume((1 + TX_DEPTH) * sizeof *tx_branch);
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if (num_proof_bytes) return 1;
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return 0;
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}
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__attribute__((warn_unused_result))
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static int verify_amount_proof(
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const void *proof,
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size_t num_proof_bytes,
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const ExecutionConfig *cfg __attribute__((unused)),
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const Root *transactions_root,
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const ExecutionAddress *expected_tx_to,
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const Bytes32 *expected_tx_value_min)
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{
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Root root, scratch[2];
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// tx_from
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const ExecutionAddress *tx_from = proof;
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if (num_proof_bytes < sizeof *tx_from) return 1;
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consume(sizeof *tx_from);
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// nonce
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const uint64_t *nonce = proof;
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if (num_proof_bytes < sizeof *nonce) return 1;
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consume(sizeof *nonce);
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// tx_to.destination_type
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const uint8_t *destination_type = proof;
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if (num_proof_bytes < sizeof *destination_type) return 1;
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if (*destination_type != DESTINATION_TYPE_REGULAR) return 1;
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consume(sizeof *destination_type);
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// tx_to.address
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const ExecutionAddress *addr = proof;
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if (num_proof_bytes < sizeof *addr) return 1;
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if (memcmp(addr, expected_tx_to, sizeof *addr)) return 1;
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consume(sizeof *addr);
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// tx_value
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const Bytes32 *tx_value = proof;
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if (num_proof_bytes < sizeof *tx_value) return 1;
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for (int i = sizeof *tx_value - 1; i >= 0; i--) {
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if ((*tx_value)[i] > (*expected_tx_value_min)[i]) break;
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if ((*tx_value)[i] < (*expected_tx_value_min)[i]) return 1;
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}
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consume(sizeof *tx_value);
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// multi_branch
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const Root *multi_branch = proof;
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if (num_proof_bytes < 2 * sizeof *multi_branch) return 1;
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consume(2 * sizeof *multi_branch);
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// payload_root
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/* 16 */ memcpy(&root[0], tx_from, 20); memset(&root[20], 0, 12);
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/* 17 */ memcpy(&scratch[0][0], nonce, 8); memset(&scratch[0][8], 0, 24);
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/* 8 */ hash_combine(&root, &root, &scratch[0]);
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/* 36 */ scratch[0][0] = DESTINATION_TYPE_REGULAR;
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/* */ memset(&scratch[0][1], 0, 31);
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/* 37 */ memcpy(&scratch[1][0], addr, 20); memset(&scratch[1][20], 0, 12);
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/* 18 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
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/* 9 */ hash_combine(&scratch[0], &scratch[0], tx_value);
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/* 4 */ hash_combine(&root, &root, &scratch[0]);
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/* 2 */ hash_combine(&root, &root, &multi_branch[0]);
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/* 1 */ hash_combine(&root, &root, &multi_branch[1]);
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// tx_hash
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const Root *tx_hash = proof;
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if (num_proof_bytes < sizeof *tx_hash) return 1;
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consume(sizeof *tx_hash);
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// transaction_root
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hash_combine(&root, &root, tx_hash);
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// tx_index
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const uint32_t *tx_index = proof;
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if (num_proof_bytes < sizeof *tx_index) return 1;
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if (*tx_index >= MAX_TRANSACTIONS_PER_PAYLOAD) return 1;
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consume(sizeof *tx_index);
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// transactions_root
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const Root *tx_branch = proof;
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if (num_proof_bytes < (1 + TX_DEPTH) * sizeof *tx_branch) return 1;
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for (int i = 0; i < TX_DEPTH; i++) {
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if (*tx_index & ((uint32_t) 1 << i))
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hash_combine(&root, tx_branch, &root);
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else
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hash_combine(&root, &root, tx_branch);
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tx_branch++;
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}
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hash_combine(&root, &root, tx_branch);
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if (memcmp(&root, transactions_root, sizeof root)) return 1;
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consume((1 + TX_DEPTH) * sizeof *tx_branch);
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if (num_proof_bytes) return 1;
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return 0;
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}
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__attribute__((warn_unused_result))
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static int verify_sender_proof(
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const void *proof,
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size_t num_proof_bytes,
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const ExecutionConfig *cfg __attribute__((unused)),
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const Root *transactions_root,
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const ExecutionAddress *expected_tx_to,
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const Bytes32 *expected_tx_value_min,
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ExecutionAddress *tx_from)
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{
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Root root, scratch[2];
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// tx_from
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const ExecutionAddress *tx_from_ = proof;
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if (num_proof_bytes < sizeof *tx_from_) return 1;
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memcpy(tx_from, tx_from_, sizeof *tx_from_);
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consume(sizeof *tx_from_);
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// nonce
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const uint64_t *nonce = proof;
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if (num_proof_bytes < sizeof *nonce) return 1;
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consume(sizeof *nonce);
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// tx_to.destination_type
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const uint8_t *destination_type = proof;
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if (num_proof_bytes < sizeof *destination_type) return 1;
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if (*destination_type != DESTINATION_TYPE_REGULAR) return 1;
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consume(sizeof *destination_type);
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// tx_to.address
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const ExecutionAddress *addr = proof;
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if (num_proof_bytes < sizeof *addr) return 1;
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if (memcmp(addr, expected_tx_to, sizeof *addr)) return 1;
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consume(sizeof *addr);
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// tx_value
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const Bytes32 *tx_value = proof;
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if (num_proof_bytes < sizeof *tx_value) return 1;
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for (int i = sizeof *tx_value - 1; i >= 0; i--) {
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if ((*tx_value)[i] > (*expected_tx_value_min)[i]) break;
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if ((*tx_value)[i] < (*expected_tx_value_min)[i]) return 1;
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}
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consume(sizeof *tx_value);
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// multi_branch
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const Root *multi_branch = proof;
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if (num_proof_bytes < 2 * sizeof *multi_branch) return 1;
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consume(2 * sizeof *multi_branch);
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// payload_root
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/* 16 */ memcpy(&root[0], tx_from, 20); memset(&root[20], 0, 12);
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/* 17 */ memcpy(&scratch[0][0], nonce, 8); memset(&scratch[0][8], 0, 24);
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/* 8 */ hash_combine(&root, &root, &scratch[0]);
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/* 36 */ scratch[0][0] = DESTINATION_TYPE_REGULAR;
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/* */ memset(&scratch[0][1], 0, 31);
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/* 37 */ memcpy(&scratch[1][0], addr, 20); memset(&scratch[1][20], 0, 12);
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/* 18 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
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/* 9 */ hash_combine(&scratch[0], &scratch[0], tx_value);
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/* 4 */ hash_combine(&root, &root, &scratch[0]);
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/* 2 */ hash_combine(&root, &root, &multi_branch[0]);
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/* 1 */ hash_combine(&root, &root, &multi_branch[1]);
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// tx_hash
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const Root *tx_hash = proof;
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if (num_proof_bytes < sizeof *tx_hash) return 1;
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consume(sizeof *tx_hash);
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// transaction_root
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hash_combine(&root, &root, tx_hash);
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// tx_index
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const uint32_t *tx_index = proof;
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if (num_proof_bytes < sizeof *tx_index) return 1;
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if (*tx_index >= MAX_TRANSACTIONS_PER_PAYLOAD) return 1;
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consume(sizeof *tx_index);
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// transactions_root
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const Root *tx_branch = proof;
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if (num_proof_bytes < (1 + TX_DEPTH) * sizeof *tx_branch) return 1;
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for (int i = 0; i < TX_DEPTH; i++) {
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if (*tx_index & ((uint32_t) 1 << i))
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hash_combine(&root, tx_branch, &root);
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else
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hash_combine(&root, &root, tx_branch);
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tx_branch++;
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}
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hash_combine(&root, &root, tx_branch);
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if (memcmp(&root, transactions_root, sizeof root)) return 1;
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consume((1 + TX_DEPTH) * sizeof *tx_branch);
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if (num_proof_bytes) return 1;
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return 0;
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}
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__attribute__((warn_unused_result))
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static int verify_info_proof(
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const void *proof,
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size_t num_proof_bytes,
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const ExecutionConfig *cfg __attribute__((unused)),
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const Root *transactions_root,
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TransactionInfo *info)
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{
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memset(info, 0, sizeof *info);
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Root root, scratch[2];
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// tx_from
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const ExecutionAddress *tx_from = proof;
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if (num_proof_bytes < sizeof *tx_from) return 1;
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memcpy(info->tx_from, tx_from, sizeof *tx_from);
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consume(sizeof *tx_from);
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// nonce
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const uint64_t *nonce = proof;
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if (num_proof_bytes < sizeof *nonce) return 1;
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info->nonce = *nonce;
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consume(sizeof *nonce);
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// tx_to.destination_type
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const uint8_t *destination_type = proof;
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if (num_proof_bytes < sizeof *destination_type) return 1;
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if (*destination_type > 1) return 1;
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info->tx_to.destination_type = *destination_type;
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consume(sizeof *destination_type);
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// tx_to.address
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const ExecutionAddress *addr = proof;
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if (num_proof_bytes < sizeof *addr) return 1;
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memcpy(info->tx_to.address, addr, sizeof *addr);
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consume(sizeof *addr);
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// tx_value
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const Bytes32 *tx_value = proof;
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if (num_proof_bytes < sizeof *tx_value) return 1;
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memcpy(info->tx_value, tx_value, sizeof *tx_value);
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consume(sizeof *tx_value);
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// limits.max_priority_fee_per_gas
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const Bytes32 *max_prio = proof;
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if (num_proof_bytes < sizeof *max_prio) return 1;
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memcpy(info->limits.max_priority_fee_per_gas, max_prio, sizeof *max_prio);
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consume(sizeof *max_prio);
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// limits.max_fee_per_gas
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const Bytes32 *max_fee = proof;
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if (num_proof_bytes < sizeof *max_fee) return 1;
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memcpy(info->limits.max_fee_per_gas, max_fee, sizeof *max_fee);
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consume(sizeof *max_fee);
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// limits.gas
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const uint64_t *gas = proof;
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if (num_proof_bytes < sizeof *gas) return 1;
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info->limits.gas = *gas;
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consume(sizeof *gas);
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// multi_branch
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const Root *multi_branch = proof;
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if (num_proof_bytes < 3 * sizeof *multi_branch) return 1;
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consume(3 * sizeof *multi_branch);
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// payload_root
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/* 16 */ memcpy(&root[0], tx_from, 20); memset(&root[20], 0, 12);
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/* 17 */ memcpy(&scratch[0][0], nonce, 8); memset(&scratch[0][8], 0, 24);
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/* 8 */ hash_combine(&root, &root, &scratch[0]);
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/* 36 */ scratch[0][0] = *destination_type;
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/* */ memset(&scratch[0][1], 0, 31);
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/* 37 */ memcpy(&scratch[1][0], addr, 20); memset(&scratch[1][20], 0, 12);
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/* 18 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
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/* 9 */ hash_combine(&scratch[0], &scratch[0], tx_value);
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/* 4 */ hash_combine(&root, &root, &scratch[0]);
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/* 42 */ hash_combine(&scratch[0], max_prio, max_fee);
|
||
|
/* 86 */ memcpy(&scratch[1][0], gas, 8); memset(&scratch[1][8], 0, 24);
|
||
|
/* 43 */ hash_combine(&scratch[1], &scratch[1], &zero_hash[0]);
|
||
|
/* 21 */ hash_combine(&scratch[0], &scratch[0], &scratch[1]);
|
||
|
/* 10 */ hash_combine(&scratch[0], &multi_branch[0], &scratch[0]);
|
||
|
/* 5 */ hash_combine(&scratch[0], &scratch[0], &multi_branch[1]);
|
||
|
/* 2 */ hash_combine(&root, &root, &scratch[0]);
|
||
|
/* 1 */ hash_combine(&root, &root, &multi_branch[2]);
|
||
|
|
||
|
// tx_hash
|
||
|
const Root *tx_hash = proof;
|
||
|
if (num_proof_bytes < sizeof *tx_hash) return 1;
|
||
|
memcpy(info->tx_hash, tx_hash, sizeof *tx_hash);
|
||
|
consume(sizeof *tx_hash);
|
||
|
|
||
|
// transaction_root
|
||
|
hash_combine(&root, &root, &info->tx_hash);
|
||
|
|
||
|
// 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);
|
||
|
|
||
|
// 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;
|
||
|
}
|
||
|
|
||
|
////////////////////////////////////////////////////////////////////////////////
|
||
|
|
||
|
#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("Normalized %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[64]);
|
||
|
} 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();
|
||
|
}
|