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Add integrity hash support and SRP tuning options

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This commit is contained in:
Kelsi 2026-02-13 01:32:15 -08:00
parent b3001a4b5b
commit 5435796a98
10 changed files with 591 additions and 22 deletions
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17
src/auth/auth_packets.cpp
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@ -126,9 +126,9 @@ bool LogonChallengeResponseParser::parse(network::Packet& packet, LogonChallenge
response.salt[i] = packet.readUInt8();
}
// Unknown/padding - 16 bytes
for (int i = 0; i < 16; ++i) {
packet.readUInt8();
// Integrity salt / CRC salt - 16 bytes
for (size_t i = 0; i < response.checksumSalt.size(); ++i) {
response.checksumSalt[i] = packet.readUInt8();
}
// Security flags
@ -162,7 +162,7 @@ bool LogonChallengeResponseParser::parse(network::Packet& packet, LogonChallenge
network::Packet LogonProofPacket::build(const std::vector<uint8_t>& A,
const std::vector<uint8_t>& M1) {
return build(A, M1, 0, nullptr, nullptr);
return build(A, M1, 0, nullptr, nullptr, nullptr);
}
network::Packet LogonProofPacket::buildLegacy(const std::vector<uint8_t>& A,
@ -185,6 +185,7 @@ network::Packet LogonProofPacket::buildLegacy(const std::vector<uint8_t>& A,
network::Packet LogonProofPacket::build(const std::vector<uint8_t>& A,
const std::vector<uint8_t>& M1,
uint8_t securityFlags,
const std::array<uint8_t, 20>* crcHash,
const std::array<uint8_t, 16>* pinClientSalt,
const std::array<uint8_t, 20>* pinHash) {
if (A.size() != 32) {
@ -202,9 +203,11 @@ network::Packet LogonProofPacket::build(const std::vector<uint8_t>& A,
// M1 (client proof) - 20 bytes
packet.writeBytes(M1.data(), M1.size());
// CRC hash - 20 bytes (zeros)
for (int i = 0; i < 20; ++i) {
packet.writeUInt8(0);
// CRC hash / integrity hash - 20 bytes
if (crcHash) {
packet.writeBytes(crcHash->data(), crcHash->size());
} else {
for (int i = 0; i < 20; ++i) packet.writeUInt8(0);
}
// Number of keys