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Hash domain separation

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This commit is contained in:
Sarang Noether 2020-04-01 08:31:00 -04:00
parent 6c7d928f19
commit 80d5320fff
9 changed files with 34 additions and 34 deletions
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9
src/wallet/ringdb.cpp
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@ -35,6 +35,7 @@
#include "misc_language.h"
#include "wallet_errors.h"
#include "ringdb.h"
#include "cryptonote_config.h"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "wallet.ringdb"
@ -105,13 +106,11 @@ std::string get_rings_filename(boost::filesystem::path filename)
static crypto::chacha_iv make_iv(const crypto::key_image &key_image, const crypto::chacha_key &key, uint8_t field)
{
static const char salt[] = "ringdsb";
uint8_t buffer[sizeof(key_image) + sizeof(key) + sizeof(salt) + sizeof(field)];
uint8_t buffer[sizeof(key_image) + sizeof(key) + sizeof(config::HASH_KEY_RINGDB) + sizeof(field)];
memcpy(buffer, &key_image, sizeof(key_image));
memcpy(buffer + sizeof(key_image), &key, sizeof(key));
memcpy(buffer + sizeof(key_image) + sizeof(key), salt, sizeof(salt));
memcpy(buffer + sizeof(key_image) + sizeof(key) + sizeof(salt), &field, sizeof(field));
memcpy(buffer + sizeof(key_image) + sizeof(key), config::HASH_KEY_RINGDB, sizeof(config::HASH_KEY_RINGDB));
memcpy(buffer + sizeof(key_image) + sizeof(key) + sizeof(config::HASH_KEY_RINGDB), &field, sizeof(field));
crypto::hash hash;
// if field is 0, backward compat mode: hash without the field
crypto::cn_fast_hash(buffer, sizeof(buffer) - !field, hash.data);