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WPA2Decrypter now decrypts both CCMP and TKIP encrypted traffic.

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This commit is contained in:
Matias Fontanini
2013-06-01 21:29:06 -03:00
parent 3b4dc10211
commit 87ac5acdd8
4 changed files with 359 additions and 24 deletions
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16
include/crypto.h
View File

@@ -49,6 +49,7 @@ namespace Crypto {
/**
* \cond
*/
class RC4Key;
#ifdef HAVE_WPA2_DECRYPTION
namespace WPA2 {
class invalid_handshake : public std::exception {
@@ -57,21 +58,26 @@ namespace Crypto {
return "invalid handshake";
}
};
class CCMPSessionKeys {
class SessionKeys {
public:
typedef Internals::byte_array<80> ptk_type;
typedef Internals::byte_array<32> pmk_type;
CCMPSessionKeys(const RSNHandshake &hs, const pmk_type &pmk);
SNAP *decrypt_unicast(const Dot11Data &dot11, const RawPDU &raw) const;
SessionKeys(const RSNHandshake &hs, const pmk_type &pmk);
SNAP *decrypt_unicast(const Dot11Data &dot11, RawPDU &raw) const;
private:
SNAP *ccmp_decrypt_unicast(const Dot11Data &dot11, RawPDU &raw) const;
SNAP *tkip_decrypt_unicast(const Dot11Data &dot11, RawPDU &raw) const;
RC4Key generate_rc4_key(const Dot11Data &dot11, const RawPDU &raw) const;
ptk_type ptk;
bool is_ccmp;
};
class SupplicantData {
public:
typedef HWAddress<6> address_type;
typedef CCMPSessionKeys::pmk_type pmk_type;
typedef SessionKeys::pmk_type pmk_type;
SupplicantData(const std::string &psk, const std::string &ssid);
@@ -228,7 +234,7 @@ namespace Crypto {
typedef std::map<std::string, WPA2::SupplicantData> pmks_map;
typedef std::map<address_type, WPA2::SupplicantData> bssids_map;
typedef std::pair<address_type, address_type> addr_pair;
typedef std::map<addr_pair, WPA2::CCMPSessionKeys> keys_map;
typedef std::map<addr_pair, WPA2::SessionKeys> keys_map;
void try_add_keys(const Dot11Data &dot11, const RSNHandshake &hs);
addr_pair make_addr_pair(const address_type &addr1, const address_type &addr2) {

8
include/internals.h
View File

@@ -60,6 +60,14 @@ public:
byte_array(InputIterator start) {
std::copy(start, n, data);
}
uint8_t &operator[](size_t i) {
return data[i];
}
uint8_t operator[](size_t i) const{
return data[i];
}
iterator begin() {
return data;