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Fix PIN grid remap bitmask (support digits 8/9)

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Kelsi 2026-02-13 00:41:02 -08:00
parent c46cc14446
commit fd0da4486d
1 changed files with 3 additions and 3 deletions
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6
src/auth/pin_auth.cpp
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@ -23,7 +23,8 @@ static std::array<uint8_t, 10> remapPinGrid(uint32_t seed) {
// https://gtker.com/wow_messages/docs/auth/pin.html // https://gtker.com/wow_messages/docs/auth/pin.html
uint32_t v = seed; uint32_t v = seed;
std::array<uint8_t, 10> remapped{}; std::array<uint8_t, 10> remapped{};
uint8_t used = 0; // 10 digits => need at least 10 bits of state.
uint16_t used = 0;
for (int i = 0; i < 10; ++i) { for (int i = 0; i < 10; ++i) {
uint32_t divisor = 10 - i; uint32_t divisor = 10 - i;
uint32_t remainder = v % divisor; uint32_t remainder = v % divisor;
@ -35,7 +36,7 @@ static std::array<uint8_t, 10> remapPinGrid(uint32_t seed) {
continue; continue;
} }
if (index == remainder) { if (index == remainder) {
used = static_cast<uint8_t>(used | (1u << j)); used = static_cast<uint16_t>(used | (1u << j));
remapped[i] = static_cast<uint8_t>(j); remapped[i] = static_cast<uint8_t>(j);
break; break;
} }
@ -105,4 +106,3 @@ PinProof computePinProof(const std::string& pinDigits,
} // namespace auth } // namespace auth
} // namespace wowee } // namespace wowee