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Merge pull request #6441

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613071f use memwipe on secret k/alpha values (moneromooo-monero)
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luigi1111 2020-05-05 23:39:32 -05:00
commit b4023dcfc5
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5 changed files with 27 additions and 10 deletions
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5
src/ringct/rctSigs.cpp
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@ -29,6 +29,7 @@
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "misc_log_ex.h"
#include "misc_language.h"
#include "common/perf_timer.h"
#include "common/threadpool.h"
#include "common/util.h"
@ -108,6 +109,7 @@ namespace rct {
//Borromean (c.f. gmax/andytoshi's paper)
boroSig genBorromean(const key64 x, const key64 P1, const key64 P2, const bits indices) {
key64 L[2], alpha;
auto wiper = epee::misc_utils::create_scope_leave_handler([&](){memwipe(alpha, sizeof(alpha));});
key c;
int naught = 0, prime = 0, ii = 0, jj=0;
boroSig bb;
@ -190,6 +192,7 @@ namespace rct {
vector<geDsmp> Ip(dsRows);
rv.II = keyV(dsRows);
keyV alpha(rows);
auto wiper = epee::misc_utils::create_scope_leave_handler([&](){memwipe(alpha.data(), alpha.size() * sizeof(alpha[0]));});
keyV aG(rows);
rv.ss = keyM(cols, aG);
keyV aHP(dsRows);
@ -548,7 +551,7 @@ namespace rct {
subKeys(M[i][1], pubs[i].mask, Cout);
}
mgSig result = MLSAG_Gen(message, M, sk, kLRki, mscout, index, rows, hwdev);
memwipe(&sk[0], sizeof(key));
memwipe(sk.data(), sk.size() * sizeof(key));
return result;
}

3
src/ringct/rctTypes.h
View file

@ -48,6 +48,7 @@ extern "C" {
#include "hex.h"
#include "span.h"
#include "memwipe.h"
#include "serialization/vector.h"
#include "serialization/debug_archive.h"
#include "serialization/binary_archive.h"
@ -106,6 +107,8 @@ namespace rct {
key L;
key R;
key ki;
~multisig_kLRki() { memwipe(&k, sizeof(k)); }
};
struct multisig_out {