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mce_qcmdpc: improve decoding logic a bit

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This commit is contained in:
Mirek Kratochvil 2016-02-06 10:46:50 +01:00
parent c1800500cf
commit 035fef4882
1 changed files with 3 additions and 4 deletions
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7
src/mce_qcmdpc.cpp
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@ -251,13 +251,13 @@ int privkey::decrypt (const bvector & in_orig, bvector & out, bvector & errors)
}
uint round;
for (round = 0; round < rounds; ++round) {
for (round = 0;; ++round) {
uint max_unsat = 0;
for (i = 0; i < cs; ++i)
if (unsat[i] > max_unsat) max_unsat = unsat[i];
if (!max_unsat) break;
if (max_unsat > bs) return 3;
if (!max_unsat) break; //success
if (round >= rounds) return 3; //decoding failure
//TODO do something about possible timing attacks
uint threshold = 0;
@ -299,7 +299,6 @@ int privkey::decrypt (const bvector & in_orig, bvector & out, bvector & errors)
}
}
if (round == rounds) return 4; //we simply failed, haha.
errors = in_orig;
errors.add (in); //get the difference