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Do memwipe for critical secret keys copied to rct::key

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stoffu 2018-08-16 22:08:58 +09:00
parent b780cf4db1
commit 1f2409e9e2
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GPG key ID: 41DAB8343A9EC012
4 changed files with 15 additions and 3 deletions
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8
src/ringct/rctSigs.cpp
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@ -492,7 +492,9 @@ namespace rct {
for (size_t j = 0; j < outPk.size(); j++) {
sc_sub(sk[rows].bytes, sk[rows].bytes, outSk[j].mask.bytes); //subtract output masks in last row..
}
return MLSAG_Gen(message, M, sk, kLRki, mscout, index, rows, hwdev);
mgSig result = MLSAG_Gen(message, M, sk, kLRki, mscout, index, rows, hwdev);
memwipe(sk.data(), sk.size() * sizeof(key));
return result;
}
@ -521,7 +523,9 @@ namespace rct {
M[i][0] = pubs[i].dest;
subKeys(M[i][1], pubs[i].mask, Cout);
}
return MLSAG_Gen(message, M, sk, kLRki, mscout, index, rows, hwdev);
mgSig result = MLSAG_Gen(message, M, sk, kLRki, mscout, index, rows, hwdev);
memwipe(&sk[0], sizeof(key));
return result;
}