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This commit is contained in:
TamtamHero
2020-12-01 16:20:13 +01:00
parent 1421a74be5
commit 17bd07a346
80 changed files with 8859 additions and 5091 deletions
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118
src/stark_crypto.c
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@@ -5,18 +5,17 @@
#include "ui_callbacks.h"
#include "utils.h"
static unsigned char const C_cx_Stark256_n[] = {
//n: 0x0800000000000010ffffffffffffffffb781126dcae7b2321e66a241adc64d2f
0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xb7, 0x81, 0x12, 0x6d, 0xca, 0xe7, 0xb2, 0x32, 0x1e, 0x66, 0xa2, 0x41, 0xad, 0xc6, 0x4d, 0x2f};
// C_cx_secp256k1_n - (C_cx_secp256k1_n % C_cx_Stark256_n)
static unsigned char const STARK_DERIVE_BIAS[] = {
0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x0e, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf7,
0x38, 0xa1, 0x3b, 0x4b, 0x92, 0x0e, 0x94, 0x11, 0xae, 0x6d, 0xa5, 0xf4, 0x0b, 0x03, 0x58, 0xb1
};
static unsigned char const C_cx_Stark256_n[] = {
// n: 0x0800000000000010ffffffffffffffffb781126dcae7b2321e66a241adc64d2f
0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xb7, 0x81, 0x12, 0x6d, 0xca, 0xe7, 0xb2, 0x32, 0x1e, 0x66, 0xa2, 0x41, 0xad, 0xc6, 0x4d, 0x2f};
void starkDerivePrivateKey(uint32_t *bip32Path, uint32_t bip32PathLength, uint8_t *privateKeyData) {
// C_cx_secp256k1_n - (C_cx_secp256k1_n % C_cx_Stark256_n)
static unsigned char const STARK_DERIVE_BIAS[] = {
0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x0e, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf7,
0x38, 0xa1, 0x3b, 0x4b, 0x92, 0x0e, 0x94, 0x11, 0xae, 0x6d, 0xa5, 0xf4, 0x0b, 0x03, 0x58, 0xb1};
void starkDerivePrivateKey(uint32_t *bip32Path, uint32_t bip32PathLength, uint8_t *privateKeyData) {
#if 0
// Sanity check
if (bip32Path[0] != STARK_BIP32_PATH_0) {
@@ -29,59 +28,62 @@ void starkDerivePrivateKey(uint32_t *bip32Path, uint32_t bip32PathLength, uint8_
cx_math_modm(privateKeyData, 32, C_cx_Stark256_n, 32);
PRINTF("Private key after processing %.*H\n", 32, privateKeyData);
#else
uint8_t tmp[33];
uint8_t index = 0;
// Sanity check
if ((bip32PathLength < 2) || (bip32Path[0] != STARK_BIP32_PATH_0) || (bip32Path[1] != STARK_BIP32_PATH_1)) {
PRINTF("Invalid Stark derivation path %d %d\n", bip32Path[0], bip32Path[1]);
THROW(0x6a80);
}
os_perso_derive_node_bip32(CX_CURVE_256K1, bip32Path, bip32PathLength, tmp, NULL);
PRINTF("Private key before processing %.*H\n", 32, tmp);
for(;;) {
tmp[32] = index;
cx_hash_sha256(tmp, 33, privateKeyData, 32);
PRINTF("Key hash %.*H\n", 32, privateKeyData);
if (cx_math_cmp(privateKeyData, STARK_DERIVE_BIAS, 32) < 0) {
cx_math_modm(privateKeyData, 32, C_cx_Stark256_n, 32);
break;
uint8_t tmp[33];
uint8_t index = 0;
// Sanity check
if ((bip32PathLength < 2) || (bip32Path[0] != STARK_BIP32_PATH_0) ||
(bip32Path[1] != STARK_BIP32_PATH_1)) {
PRINTF("Invalid Stark derivation path %d %d\n", bip32Path[0], bip32Path[1]);
THROW(0x6a80);
}
index++;
}
PRINTF("Key result %.*H\n", 32, privateKeyData);
os_perso_derive_node_bip32(CX_CURVE_256K1, bip32Path, bip32PathLength, tmp, NULL);
PRINTF("Private key before processing %.*H\n", 32, tmp);
for (;;) {
tmp[32] = index;
cx_hash_sha256(tmp, 33, privateKeyData, 32);
PRINTF("Key hash %.*H\n", 32, privateKeyData);
if (cx_math_cmp(privateKeyData, STARK_DERIVE_BIAS, 32) < 0) {
cx_math_modm(privateKeyData, 32, C_cx_Stark256_n, 32);
break;
}
index++;
}
PRINTF("Key result %.*H\n", 32, privateKeyData);
#endif
#endif
}
void stark_get_amount_string(uint8_t *contractAddress, uint8_t *quantum256, uint8_t *amount64, char *tmp100, char *target100) {
uint256_t amountPre, quantum, amount;
uint8_t decimals;
char *ticker = (char*)PIC(chainConfig->coinName);
void stark_get_amount_string(uint8_t *contractAddress,
uint8_t *quantum256,
uint8_t *amount64,
char *tmp100,
char *target100) {
uint256_t amountPre, quantum, amount;
uint8_t decimals;
char *ticker = (char *) PIC(chainConfig->coinName);
PRINTF("stark_get_amount_string %.*H\n", 20, contractAddress);
PRINTF("stark_get_amount_string %.*H\n", 20, contractAddress);
if (allzeroes(contractAddress, 20)) {
decimals = WEI_TO_ETHER;
PRINTF("stark_get_amount_string - ETH\n");
}
else {
tokenDefinition_t *token = getKnownToken(contractAddress);
if (token == NULL) { // caught earlier
THROW(0x6A80);
if (allzeroes(contractAddress, 20)) {
decimals = WEI_TO_ETHER;
PRINTF("stark_get_amount_string - ETH\n");
} else {
tokenDefinition_t *token = getKnownToken(contractAddress);
if (token == NULL) { // caught earlier
THROW(0x6A80);
}
decimals = token->decimals;
ticker = (char *) token->ticker;
PRINTF("stark_get_amount_string - decimals %d ticker %s\n", decimals, ticker);
}
decimals = token->decimals;
ticker = (char*)token->ticker;
PRINTF("stark_get_amount_string - decimals %d ticker %s\n", decimals, ticker);
}
convertUint256BE(amount64, 8, &amountPre);
readu256BE(quantum256, &quantum);
mul256(&amountPre, &quantum, &amount);
tostring256(&amount, 10, tmp100, 100);
PRINTF("stark_get_amount_string - mul256 %s\n", tmp100);
strcpy(target100, ticker);
adjustDecimals(tmp100, strlen(tmp100), target100 + strlen(ticker), 100, decimals);
PRINTF("get_amount_string %s\n", target100);
convertUint256BE(amount64, 8, &amountPre);
readu256BE(quantum256, &quantum);
mul256(&amountPre, &quantum, &amount);
tostring256(&amount, 10, tmp100, 100);
PRINTF("stark_get_amount_string - mul256 %s\n", tmp100);
strcpy(target100, ticker);
adjustDecimals(tmp100, strlen(tmp100), target100 + strlen(ticker), 100, decimals);
PRINTF("get_amount_string %s\n", target100);
}
#endif // HAVE_STARK
#endif // HAVE_STARK