74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
#include "handle_check_address.h"
|
|
#include "os.h"
|
|
#include "shared_context.h"
|
|
#include "ethUtils.h"
|
|
#include "string.h"
|
|
|
|
#define ZERO(x) memset(&x, 0, sizeof(x))
|
|
|
|
int handle_check_address(check_address_parameters_t* params, chain_config_t* chain_config) {
|
|
PRINTF("Params on the address %d\n", (unsigned int) params);
|
|
PRINTF("Address to check %s\n", params->address_to_check);
|
|
PRINTF("Inside handle_check_address\n");
|
|
if (params->address_to_check == 0) {
|
|
PRINTF("Address to check == 0\n");
|
|
return 0;
|
|
}
|
|
|
|
uint8_t i;
|
|
const uint8_t* bip32_path_ptr = params->address_parameters;
|
|
uint8_t bip32PathLength = *(bip32_path_ptr++);
|
|
cx_sha3_t local_sha3;
|
|
|
|
// Common memory is used for locals that are not used concurrently
|
|
union group1 {
|
|
uint32_t bip32Path[MAX_BIP32_PATH];
|
|
cx_ecfp_private_key_t privateKey;
|
|
char address[51];
|
|
} locals_union1;
|
|
union group2 {
|
|
uint8_t privateKeyData[32];
|
|
cx_ecfp_public_key_t publicKey;
|
|
} locals_union2;
|
|
|
|
if ((bip32PathLength < 0x01) || (bip32PathLength > MAX_BIP32_PATH) ||
|
|
(bip32PathLength * 4 != params->address_parameters_length - 1)) {
|
|
PRINTF("Invalid path\n");
|
|
return 0;
|
|
}
|
|
for (i = 0; i < bip32PathLength; i++) {
|
|
locals_union1.bip32Path[i] = U4BE(bip32_path_ptr, 0);
|
|
bip32_path_ptr += 4;
|
|
}
|
|
os_perso_derive_node_bip32(CX_CURVE_256K1,
|
|
locals_union1.bip32Path,
|
|
bip32PathLength,
|
|
locals_union2.privateKeyData,
|
|
NULL);
|
|
ZERO(locals_union1);
|
|
cx_ecfp_init_private_key(CX_CURVE_256K1,
|
|
locals_union2.privateKeyData,
|
|
32,
|
|
&locals_union1.privateKey);
|
|
ZERO(locals_union2);
|
|
cx_ecfp_generate_pair(CX_CURVE_256K1, &locals_union2.publicKey, &locals_union1.privateKey, 1);
|
|
ZERO(locals_union1);
|
|
getEthAddressStringFromKey(&locals_union2.publicKey,
|
|
locals_union1.address,
|
|
&local_sha3,
|
|
chain_config->chainId);
|
|
ZERO(locals_union2);
|
|
|
|
uint8_t offset_0x = 0;
|
|
if (memcmp(params->address_to_check, "0x", 2) == 0) {
|
|
offset_0x = 2;
|
|
}
|
|
|
|
if (strcmp(locals_union1.address, params->address_to_check + offset_0x) != 0) {
|
|
PRINTF("Addresses don't match\n");
|
|
return 0;
|
|
}
|
|
PRINTF("Addresses match\n");
|
|
return 1;
|
|
}
|