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Merge pull request #3512

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a71e4dab device: fix endianess dependence on subaddress secret key generation (moneromooo-monero)
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Riccardo Spagni 2018-03-29 17:04:27 +02:00
commit 7090121b13
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GPG Key ID: 55432DF31CCD4FCD
1 changed files with 6 additions and 2 deletions
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8
src/device/device_default.cpp
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@ -31,6 +31,7 @@
#include "device_default.hpp"
#include "common/int-util.h"
#include "cryptonote_basic/account.h"
#include "cryptonote_basic/subaddress_index.h"
#include "ringct/rctOps.h"
@ -195,10 +196,13 @@ namespace hw {
crypto::secret_key device_default::get_subaddress_secret_key(const crypto::secret_key &a, const cryptonote::subaddress_index &index) {
const char prefix[] = "SubAddr";
char data[sizeof(prefix) + sizeof(crypto::secret_key) + sizeof(cryptonote::subaddress_index)];
char data[sizeof(prefix) + sizeof(crypto::secret_key) + 2 * sizeof(uint32_t)];
memcpy(data, prefix, sizeof(prefix));
memcpy(data + sizeof(prefix), &a, sizeof(crypto::secret_key));
memcpy(data + sizeof(prefix) + sizeof(crypto::secret_key), &index, sizeof(cryptonote::subaddress_index));
uint32_t idx = SWAP32LE(index.major);
memcpy(data + sizeof(prefix) + sizeof(crypto::secret_key), &idx, sizeof(uint32_t));
idx = SWAP32LE(index.minor);
memcpy(data + sizeof(prefix) + sizeof(crypto::secret_key) + sizeof(uint32_t), &idx, sizeof(uint32_t));
crypto::secret_key m;
crypto::hash_to_scalar(data, sizeof(data), m);
return m;