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wpa2 enterprise: add wpa2 enterprise API and crypto files

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This commit is contained in:
Xia Xiao Tian 2016-11-11 10:38:57 +08:00
parent fcba7e278d
commit 8dc9e243ae
8 changed files with 1410 additions and 2 deletions
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2
components/esp32/component.mk
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@ -10,7 +10,7 @@
COMPONENT_SRCDIRS := . hwcrypto
LIBS := core net80211 phy rtc pp wpa smartconfig coexist
LIBS := core net80211 phy rtc pp wpa smartconfig coexist wpa2
LINKER_SCRIPTS += -T esp32_out.ld -T esp32.common.ld -T esp32.rom.ld -T esp32.peripherals.ld

112
components/esp32/include/esp_wpa2.h Normal file
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@ -0,0 +1,112 @@
#ifndef ESP_WPA2_H
#define ESP_WPA2_H
#include "esp_err.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Set wpa2 enterprise authentication.
*
* @attention wpa2 enterprise authentication can only be used when ESP8266 station is enabled.
* wpa2 enterprise authentication can only support PEAP-MSCHAPv2 and TTLS-MSCHAPv2 method.
*
* @param enable
* - 1: enable wpa2 enterprise authentication;
* - 0: disable wpa2 enterprise authentication
*
* @return 0: succeed
-1: fail
*/
esp_err_t esp_wifi_station_set_wpa2_enterprise_auth(int enable);
/**
* @brief Set username for PEAP/TTLS method.
*
* @param username: point to address where stores the username;
* len: length of username, limited to 1~127
*
* @return 0: succeed
* -1: fail(len <= 0 or len >= 128)
* -2: fail(internal memory malloc fail)
*/
esp_err_t esp_wifi_station_set_enterprise_username(unsigned char *username, int len);
/**
* @brief Set password for PEAP/TTLS method..
*
* @param password: point to address where stores the password;
* len: length of password
*
* @return 0: succeed
* -1: fail(len <= 0)
* -2: fail(internal memory malloc fail)
*/
esp_err_t esp_wifi_station_set_enterprise_password(unsigned char *password, int len);
/**
* @brief Set CA certificate for PEAP/TTLS method.
*
* @param ca_cert: point to address where stores the CA certificate;
* len: length of ca_cert
*
* @return 0: succeed
*/
esp_err_t esp_wifi_station_set_enterprise_ca_cert(unsigned char *ca_cert, int len);
/**
* @brief Clear username for PEAP/TTLS method.
*
* @param null
*
* @return null
*/
void esp_wifi_station_clear_enterprise_username(void);
/**
* @brief Clear password for PEAP/TTLS method..
*
* @param null
*
* @return null
*/
void esp_wifi_station_clear_enterprise_password(void);
/**
* @brief Clear CA certificate for PEAP/TTLS method.
*
* @param null
*
* @return null
*/
void esp_wifi_station_clear_enterprise_ca_cert(void);
/**
* @brief Set client certificate and key.
*
* @param client_cert: point to address where stores the client certificate;
* client_cert_len: length of client certificate;
* private_key: point to address where stores the private key;
* private_key_len: length of private key;
* private_key_password: point to address where stores the private key password;
* private_key_password_len: length of private key password;
*
* @return 0: succeed
*/
esp_err_t esp_wifi_station_set_enterprise_cert_key(unsigned char *client_cert, int client_cert_len, unsigned char *private_key, int private_key_len, unsigned char *private_key_passwd, int private_key_passwd_len);
/**
* @brief Clear client certificate and key.
*
* @param null
*
* @return null
*/
void esp_wifi_station_clear_enterprise_cert_key(void);
#ifdef __cplusplus
}
#endif
#endif

2
components/wpa_supplicant/component.mk
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@ -1,6 +1,6 @@
COMPONENT_ADD_INCLUDEDIRS := include port/include
COMPONENT_SRCDIRS := src/crypto
CFLAGS += -DEMBEDDED_SUPP -D__ets__ -Wno-strict-aliasing
CFLAGS += -DEMBEDDED_SUPP -D__ets__ -Wno-strict-aliasing -D__ESP32_SUPP_TYPE__
include $(IDF_PATH)/make/component_common.mk

60
components/wpa_supplicant/include/crypto/ms_funcs.h Normal file
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@ -0,0 +1,60 @@
/*
* WPA Supplicant / shared MSCHAPV2 helper functions
*
*
*/
#ifndef MS_FUNCS_H
#define MS_FUNCS_H
int generate_nt_response(const u8 *auth_challenge, const u8 *peer_challenge,
const u8 *username, size_t username_len,
const u8 *password, size_t password_len,
u8 *response);
int generate_nt_response_pwhash(const u8 *auth_challenge,
const u8 *peer_challenge,
const u8 *username, size_t username_len,
const u8 *password_hash,
u8 *response);
int generate_authenticator_response(const u8 *password, size_t password_len,
const u8 *peer_challenge,
const u8 *auth_challenge,
const u8 *username, size_t username_len,
const u8 *nt_response, u8 *response);
int generate_authenticator_response_pwhash(
const u8 *password_hash,
const u8 *peer_challenge, const u8 *auth_challenge,
const u8 *username, size_t username_len,
const u8 *nt_response, u8 *response);
int nt_challenge_response(const u8 *challenge, const u8 *password,
size_t password_len, u8 *response);
void challenge_response(const u8 *challenge, const u8 *password_hash,
u8 *response);
int nt_password_hash(const u8 *password, size_t password_len,
u8 *password_hash);
int hash_nt_password_hash(const u8 *password_hash, u8 *password_hash_hash);
int get_master_key(const u8 *password_hash_hash, const u8 *nt_response,
u8 *master_key);
int get_asymetric_start_key(const u8 *master_key, u8 *session_key,
size_t session_key_len, int is_send,
int is_server);
int encrypt_pw_block_with_password_hash(
const u8 *password, size_t password_len,
const u8 *password_hash, u8 *pw_block);
int __must_check encry_pw_block_with_password_hash(
const u8 *password, size_t password_len,
const u8 *password_hash, u8 *pw_block);
int __must_check new_password_encrypted_with_old_nt_password_hash(
const u8 *new_password, size_t new_password_len,
const u8 *old_password, size_t old_password_len,
u8 *encrypted_pw_block);
void nt_password_hash_encrypted_with_block(const u8 *password_hash,
const u8 *block, u8 *cypher);
int old_nt_password_hash_encrypted_with_new_nt_password_hash(
const u8 *new_password, size_t new_password_len,
const u8 *old_password, size_t old_password_len,
u8 *encrypted_password_hash);
#endif /* MS_FUNCS_H */

13
components/wpa_supplicant/include/wpa/common.h
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@ -19,6 +19,19 @@
#endif /* ets */
#include "os.h"
/* Define platform specific variable type macros */
#if defined(__ESP32_SUPP_TYPE__)
#include <stdint.h>
typedef uint64_t u64;
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t u8;
typedef int64_t s64;
typedef int32_t s32;
typedef int16_t s16;
typedef int8_t s8;
#endif /*__ESP32_SUPP_TYPE__*/
#if defined(__XTENSA__)
#include <machine/endian.h>
#define __BYTE_ORDER BYTE_ORDER

494
components/wpa_supplicant/src/crypto/des-internal.c Normal file
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@ -0,0 +1,494 @@
/*
* DES and 3DES-EDE ciphers
*
* Modifications to LibTomCrypt implementation:
* Copyright (c) 2006-2009, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "wpa/includes.h"
#include "wpa/common.h"
#include "crypto/crypto.h"
//#include "des_i.h"
/*
* This implementation is based on a DES implementation included in
* LibTomCrypt. The version here is modified to fit in wpa_supplicant/hostapd
* coding style.
*/
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com
*/
/**
DES code submitted by Dobes Vandermeer
*/
#define ROLc(x, y) \
((((unsigned long) (x) << (unsigned long) ((y) & 31)) | \
(((unsigned long) (x) & 0xFFFFFFFFUL) >> \
(unsigned long) (32 - ((y) & 31)))) & 0xFFFFFFFFUL)
#define RORc(x, y) \
(((((unsigned long) (x) & 0xFFFFFFFFUL) >> \
(unsigned long) ((y) & 31)) | \
((unsigned long) (x) << (unsigned long) (32 - ((y) & 31)))) & \
0xFFFFFFFFUL)
static const u32 bytebit[8] =
{
0200, 0100, 040, 020, 010, 04, 02, 01
};
static const u32 bigbyte[24] =
{
0x800000UL, 0x400000UL, 0x200000UL, 0x100000UL,
0x80000UL, 0x40000UL, 0x20000UL, 0x10000UL,
0x8000UL, 0x4000UL, 0x2000UL, 0x1000UL,
0x800UL, 0x400UL, 0x200UL, 0x100UL,
0x80UL, 0x40UL, 0x20UL, 0x10UL,
0x8UL, 0x4UL, 0x2UL, 0x1L
};
/* Use the key schedule specific in the standard (ANSI X3.92-1981) */
static const u8 pc1[56] = {
56, 48, 40, 32, 24, 16, 8, 0, 57, 49, 41, 33, 25, 17,
9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35,
62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21,
13, 5, 60, 52, 44, 36, 28, 20, 12, 4, 27, 19, 11, 3
};
static const u8 totrot[16] = {
1, 2, 4, 6,
8, 10, 12, 14,
15, 17, 19, 21,
23, 25, 27, 28
};
static const u8 pc2[48] = {
13, 16, 10, 23, 0, 4, 2, 27, 14, 5, 20, 9,
22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1,
40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47,
43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31
};
static const u32 SP1[64] =
{
0x01010400UL, 0x00000000UL, 0x00010000UL, 0x01010404UL,
0x01010004UL, 0x00010404UL, 0x00000004UL, 0x00010000UL,
0x00000400UL, 0x01010400UL, 0x01010404UL, 0x00000400UL,
0x01000404UL, 0x01010004UL, 0x01000000UL, 0x00000004UL,
0x00000404UL, 0x01000400UL, 0x01000400UL, 0x00010400UL,
0x00010400UL, 0x01010000UL, 0x01010000UL, 0x01000404UL,
0x00010004UL, 0x01000004UL, 0x01000004UL, 0x00010004UL,
0x00000000UL, 0x00000404UL, 0x00010404UL, 0x01000000UL,
0x00010000UL, 0x01010404UL, 0x00000004UL, 0x01010000UL,
0x01010400UL, 0x01000000UL, 0x01000000UL, 0x00000400UL,
0x01010004UL, 0x00010000UL, 0x00010400UL, 0x01000004UL,
0x00000400UL, 0x00000004UL, 0x01000404UL, 0x00010404UL,
0x01010404UL, 0x00010004UL, 0x01010000UL, 0x01000404UL,
0x01000004UL, 0x00000404UL, 0x00010404UL, 0x01010400UL,
0x00000404UL, 0x01000400UL, 0x01000400UL, 0x00000000UL,
0x00010004UL, 0x00010400UL, 0x00000000UL, 0x01010004UL
};
static const u32 SP2[64] =
{
0x80108020UL, 0x80008000UL, 0x00008000UL, 0x00108020UL,
0x00100000UL, 0x00000020UL, 0x80100020UL, 0x80008020UL,
0x80000020UL, 0x80108020UL, 0x80108000UL, 0x80000000UL,
0x80008000UL, 0x00100000UL, 0x00000020UL, 0x80100020UL,
0x00108000UL, 0x00100020UL, 0x80008020UL, 0x00000000UL,
0x80000000UL, 0x00008000UL, 0x00108020UL, 0x80100000UL,
0x00100020UL, 0x80000020UL, 0x00000000UL, 0x00108000UL,
0x00008020UL, 0x80108000UL, 0x80100000UL, 0x00008020UL,
0x00000000UL, 0x00108020UL, 0x80100020UL, 0x00100000UL,
0x80008020UL, 0x80100000UL, 0x80108000UL, 0x00008000UL,
0x80100000UL, 0x80008000UL, 0x00000020UL, 0x80108020UL,
0x00108020UL, 0x00000020UL, 0x00008000UL, 0x80000000UL,
0x00008020UL, 0x80108000UL, 0x00100000UL, 0x80000020UL,
0x00100020UL, 0x80008020UL, 0x80000020UL, 0x00100020UL,
0x00108000UL, 0x00000000UL, 0x80008000UL, 0x00008020UL,
0x80000000UL, 0x80100020UL, 0x80108020UL, 0x00108000UL
};
static const u32 SP3[64] =
{
0x00000208UL, 0x08020200UL, 0x00000000UL, 0x08020008UL,
0x08000200UL, 0x00000000UL, 0x00020208UL, 0x08000200UL,
0x00020008UL, 0x08000008UL, 0x08000008UL, 0x00020000UL,
0x08020208UL, 0x00020008UL, 0x08020000UL, 0x00000208UL,
0x08000000UL, 0x00000008UL, 0x08020200UL, 0x00000200UL,
0x00020200UL, 0x08020000UL, 0x08020008UL, 0x00020208UL,
0x08000208UL, 0x00020200UL, 0x00020000UL, 0x08000208UL,
0x00000008UL, 0x08020208UL, 0x00000200UL, 0x08000000UL,
0x08020200UL, 0x08000000UL, 0x00020008UL, 0x00000208UL,
0x00020000UL, 0x08020200UL, 0x08000200UL, 0x00000000UL,
0x00000200UL, 0x00020008UL, 0x08020208UL, 0x08000200UL,
0x08000008UL, 0x00000200UL, 0x00000000UL, 0x08020008UL,
0x08000208UL, 0x00020000UL, 0x08000000UL, 0x08020208UL,
0x00000008UL, 0x00020208UL, 0x00020200UL, 0x08000008UL,
0x08020000UL, 0x08000208UL, 0x00000208UL, 0x08020000UL,
0x00020208UL, 0x00000008UL, 0x08020008UL, 0x00020200UL
};
static const u32 SP4[64] =
{
0x00802001UL, 0x00002081UL, 0x00002081UL, 0x00000080UL,
0x00802080UL, 0x00800081UL, 0x00800001UL, 0x00002001UL,
0x00000000UL, 0x00802000UL, 0x00802000UL, 0x00802081UL,
0x00000081UL, 0x00000000UL, 0x00800080UL, 0x00800001UL,
0x00000001UL, 0x00002000UL, 0x00800000UL, 0x00802001UL,
0x00000080UL, 0x00800000UL, 0x00002001UL, 0x00002080UL,
0x00800081UL, 0x00000001UL, 0x00002080UL, 0x00800080UL,
0x00002000UL, 0x00802080UL, 0x00802081UL, 0x00000081UL,
0x00800080UL, 0x00800001UL, 0x00802000UL, 0x00802081UL,
0x00000081UL, 0x00000000UL, 0x00000000UL, 0x00802000UL,
0x00002080UL, 0x00800080UL, 0x00800081UL, 0x00000001UL,
0x00802001UL, 0x00002081UL, 0x00002081UL, 0x00000080UL,
0x00802081UL, 0x00000081UL, 0x00000001UL, 0x00002000UL,
0x00800001UL, 0x00002001UL, 0x00802080UL, 0x00800081UL,
0x00002001UL, 0x00002080UL, 0x00800000UL, 0x00802001UL,
0x00000080UL, 0x00800000UL, 0x00002000UL, 0x00802080UL
};
static const u32 SP5[64] =
{
0x00000100UL, 0x02080100UL, 0x02080000UL, 0x42000100UL,
0x00080000UL, 0x00000100UL, 0x40000000UL, 0x02080000UL,
0x40080100UL, 0x00080000UL, 0x02000100UL, 0x40080100UL,
0x42000100UL, 0x42080000UL, 0x00080100UL, 0x40000000UL,
0x02000000UL, 0x40080000UL, 0x40080000UL, 0x00000000UL,
0x40000100UL, 0x42080100UL, 0x42080100UL, 0x02000100UL,
0x42080000UL, 0x40000100UL, 0x00000000UL, 0x42000000UL,
0x02080100UL, 0x02000000UL, 0x42000000UL, 0x00080100UL,
0x00080000UL, 0x42000100UL, 0x00000100UL, 0x02000000UL,
0x40000000UL, 0x02080000UL, 0x42000100UL, 0x40080100UL,
0x02000100UL, 0x40000000UL, 0x42080000UL, 0x02080100UL,
0x40080100UL, 0x00000100UL, 0x02000000UL, 0x42080000UL,
0x42080100UL, 0x00080100UL, 0x42000000UL, 0x42080100UL,
0x02080000UL, 0x00000000UL, 0x40080000UL, 0x42000000UL,
0x00080100UL, 0x02000100UL, 0x40000100UL, 0x00080000UL,
0x00000000UL, 0x40080000UL, 0x02080100UL, 0x40000100UL
};
static const u32 SP6[64] =
{
0x20000010UL, 0x20400000UL, 0x00004000UL, 0x20404010UL,
0x20400000UL, 0x00000010UL, 0x20404010UL, 0x00400000UL,
0x20004000UL, 0x00404010UL, 0x00400000UL, 0x20000010UL,
0x00400010UL, 0x20004000UL, 0x20000000UL, 0x00004010UL,
0x00000000UL, 0x00400010UL, 0x20004010UL, 0x00004000UL,
0x00404000UL, 0x20004010UL, 0x00000010UL, 0x20400010UL,
0x20400010UL, 0x00000000UL, 0x00404010UL, 0x20404000UL,
0x00004010UL, 0x00404000UL, 0x20404000UL, 0x20000000UL,
0x20004000UL, 0x00000010UL, 0x20400010UL, 0x00404000UL,
0x20404010UL, 0x00400000UL, 0x00004010UL, 0x20000010UL,
0x00400000UL, 0x20004000UL, 0x20000000UL, 0x00004010UL,
0x20000010UL, 0x20404010UL, 0x00404000UL, 0x20400000UL,
0x00404010UL, 0x20404000UL, 0x00000000UL, 0x20400010UL,
0x00000010UL, 0x00004000UL, 0x20400000UL, 0x00404010UL,
0x00004000UL, 0x00400010UL, 0x20004010UL, 0x00000000UL,
0x20404000UL, 0x20000000UL, 0x00400010UL, 0x20004010UL
};
static const u32 SP7[64] =
{
0x00200000UL, 0x04200002UL, 0x04000802UL, 0x00000000UL,
0x00000800UL, 0x04000802UL, 0x00200802UL, 0x04200800UL,
0x04200802UL, 0x00200000UL, 0x00000000UL, 0x04000002UL,
0x00000002UL, 0x04000000UL, 0x04200002UL, 0x00000802UL,
0x04000800UL, 0x00200802UL, 0x00200002UL, 0x04000800UL,
0x04000002UL, 0x04200000UL, 0x04200800UL, 0x00200002UL,
0x04200000UL, 0x00000800UL, 0x00000802UL, 0x04200802UL,
0x00200800UL, 0x00000002UL, 0x04000000UL, 0x00200800UL,
0x04000000UL, 0x00200800UL, 0x00200000UL, 0x04000802UL,
0x04000802UL, 0x04200002UL, 0x04200002UL, 0x00000002UL,
0x00200002UL, 0x04000000UL, 0x04000800UL, 0x00200000UL,
0x04200800UL, 0x00000802UL, 0x00200802UL, 0x04200800UL,
0x00000802UL, 0x04000002UL, 0x04200802UL, 0x04200000UL,
0x00200800UL, 0x00000000UL, 0x00000002UL, 0x04200802UL,
0x00000000UL, 0x00200802UL, 0x04200000UL, 0x00000800UL,
0x04000002UL, 0x04000800UL, 0x00000800UL, 0x00200002UL
};
static const u32 SP8[64] =
{
0x10001040UL, 0x00001000UL, 0x00040000UL, 0x10041040UL,
0x10000000UL, 0x10001040UL, 0x00000040UL, 0x10000000UL,
0x00040040UL, 0x10040000UL, 0x10041040UL, 0x00041000UL,
0x10041000UL, 0x00041040UL, 0x00001000UL, 0x00000040UL,
0x10040000UL, 0x10000040UL, 0x10001000UL, 0x00001040UL,
0x00041000UL, 0x00040040UL, 0x10040040UL, 0x10041000UL,
0x00001040UL, 0x00000000UL, 0x00000000UL, 0x10040040UL,
0x10000040UL, 0x10001000UL, 0x00041040UL, 0x00040000UL,
0x00041040UL, 0x00040000UL, 0x10041000UL, 0x00001000UL,
0x00000040UL, 0x10040040UL, 0x00001000UL, 0x00041040UL,
0x10001000UL, 0x00000040UL, 0x10000040UL, 0x10040000UL,
0x10040040UL, 0x10000000UL, 0x00040000UL, 0x10001040UL,
0x00000000UL, 0x10041040UL, 0x00040040UL, 0x10000040UL,
0x10040000UL, 0x10001000UL, 0x10001040UL, 0x00000000UL,
0x10041040UL, 0x00041000UL, 0x00041000UL, 0x00001040UL,
0x00001040UL, 0x00040040UL, 0x10000000UL, 0x10041000UL
};
static void cookey(const u32 *raw1, u32 *keyout)
{
u32 *cook;
const u32 *raw0;
u32 dough[32];
int i;
cook = dough;
for (i = 0; i < 16; i++, raw1++) {
raw0 = raw1++;
*cook = (*raw0 & 0x00fc0000L) << 6;
*cook |= (*raw0 & 0x00000fc0L) << 10;
*cook |= (*raw1 & 0x00fc0000L) >> 10;
*cook++ |= (*raw1 & 0x00000fc0L) >> 6;
*cook = (*raw0 & 0x0003f000L) << 12;
*cook |= (*raw0 & 0x0000003fL) << 16;
*cook |= (*raw1 & 0x0003f000L) >> 4;
*cook++ |= (*raw1 & 0x0000003fL);
}
os_memcpy(keyout, dough, sizeof(dough));
}
static void deskey(const u8 *key, int decrypt, u32 *keyout)
{
u32 i, j, l, m, n, kn[32];
u8 pc1m[56], pcr[56];
for (j = 0; j < 56; j++) {
l = (u32) pc1[j];
m = l & 7;
pc1m[j] = (u8)
((key[l >> 3U] & bytebit[m]) == bytebit[m] ? 1 : 0);
}
for (i = 0; i < 16; i++) {
if (decrypt)
m = (15 - i) << 1;
else
m = i << 1;
n = m + 1;
kn[m] = kn[n] = 0L;
for (j = 0; j < 28; j++) {
l = j + (u32) totrot[i];
if (l < 28)
pcr[j] = pc1m[l];
else
pcr[j] = pc1m[l - 28];
}
for (/* j = 28 */; j < 56; j++) {
l = j + (u32) totrot[i];
if (l < 56)
pcr[j] = pc1m[l];
else
pcr[j] = pc1m[l - 28];
}
for (j = 0; j < 24; j++) {
if ((int) pcr[(int) pc2[j]] != 0)
kn[m] |= bigbyte[j];
if ((int) pcr[(int) pc2[j + 24]] != 0)
kn[n] |= bigbyte[j];
}
}
cookey(kn, keyout);
}
static void desfunc(u32 *block, const u32 *keys)
{
u32 work, right, leftt;
int cur_round;
leftt = block[0];
right = block[1];
work = ((leftt >> 4) ^ right) & 0x0f0f0f0fL;
right ^= work;
leftt ^= (work << 4);
work = ((leftt >> 16) ^ right) & 0x0000ffffL;
right ^= work;
leftt ^= (work << 16);
work = ((right >> 2) ^ leftt) & 0x33333333L;
leftt ^= work;
right ^= (work << 2);
work = ((right >> 8) ^ leftt) & 0x00ff00ffL;
leftt ^= work;
right ^= (work << 8);
right = ROLc(right, 1);
work = (leftt ^ right) & 0xaaaaaaaaL;
leftt ^= work;
right ^= work;
leftt = ROLc(leftt, 1);
for (cur_round = 0; cur_round < 8; cur_round++) {
work = RORc(right, 4) ^ *keys++;
leftt ^= SP7[work & 0x3fL]
^ SP5[(work >> 8) & 0x3fL]
^ SP3[(work >> 16) & 0x3fL]
^ SP1[(work >> 24) & 0x3fL];
work = right ^ *keys++;
leftt ^= SP8[ work & 0x3fL]
^ SP6[(work >> 8) & 0x3fL]
^ SP4[(work >> 16) & 0x3fL]
^ SP2[(work >> 24) & 0x3fL];
work = RORc(leftt, 4) ^ *keys++;
right ^= SP7[ work & 0x3fL]
^ SP5[(work >> 8) & 0x3fL]
^ SP3[(work >> 16) & 0x3fL]
^ SP1[(work >> 24) & 0x3fL];
work = leftt ^ *keys++;
right ^= SP8[ work & 0x3fL]
^ SP6[(work >> 8) & 0x3fL]
^ SP4[(work >> 16) & 0x3fL]
^ SP2[(work >> 24) & 0x3fL];
}
right = RORc(right, 1);
work = (leftt ^ right) & 0xaaaaaaaaL;
leftt ^= work;
right ^= work;
leftt = RORc(leftt, 1);
work = ((leftt >> 8) ^ right) & 0x00ff00ffL;
right ^= work;
leftt ^= (work << 8);
/* -- */
work = ((leftt >> 2) ^ right) & 0x33333333L;
right ^= work;
leftt ^= (work << 2);
work = ((right >> 16) ^ leftt) & 0x0000ffffL;
leftt ^= work;
right ^= (work << 16);
work = ((right >> 4) ^ leftt) & 0x0f0f0f0fL;
leftt ^= work;
right ^= (work << 4);
block[0] = right;
block[1] = leftt;
}
/* wpa_supplicant/hostapd specific wrapper */
void des_encrypt(const u8 *clear, const u8 *key, u8 *cypher)
{
u8 pkey[8], next, tmp;
int i;
u32 ek[32], work[2];
/* Add parity bits to the key */
next = 0;
for (i = 0; i < 7; i++) {
tmp = key[i];
pkey[i] = (tmp >> i) | next | 1;
next = tmp << (7 - i);
}
pkey[i] = next | 1;
deskey(pkey, 0, ek);
work[0] = WPA_GET_BE32(clear);
work[1] = WPA_GET_BE32(clear + 4);
desfunc(work, ek);
WPA_PUT_BE32(cypher, work[0]);
WPA_PUT_BE32(cypher + 4, work[1]);
os_memset(pkey, 0, sizeof(pkey));
os_memset(ek, 0, sizeof(ek));
}
/*
void des_key_setup(const u8 *key, u32 *ek, u32 *dk)
{
deskey(key, 0, ek);
deskey(key, 1, dk);
}
void des_block_encrypt(const u8 *plain, const u32 *ek, u8 *crypt)
{
u32 work[2];
work[0] = WPA_GET_BE32(plain);
work[1] = WPA_GET_BE32(plain + 4);
desfunc(work, ek);
WPA_PUT_BE32(crypt, work[0]);
WPA_PUT_BE32(crypt + 4, work[1]);
}
void des_block_decrypt(const u8 *crypt, const u32 *dk, u8 *plain)
{
u32 work[2];
work[0] = WPA_GET_BE32(crypt);
work[1] = WPA_GET_BE32(crypt + 4);
desfunc(work, dk);
WPA_PUT_BE32(plain, work[0]);
WPA_PUT_BE32(plain + 4, work[1]);
}
void des3_key_setup(const u8 *key, struct des3_key_s *dkey)
{
deskey(key, 0, dkey->ek[0]);
deskey(key + 8, 1, dkey->ek[1]);
deskey(key + 16, 0, dkey->ek[2]);
deskey(key, 1, dkey->dk[2]);
deskey(key + 8, 0, dkey->dk[1]);
deskey(key + 16, 1, dkey->dk[0]);
}
void des3_encrypt(const u8 *plain, const struct des3_key_s *key, u8 *crypt)
{
u32 work[2];
work[0] = WPA_GET_BE32(plain);
work[1] = WPA_GET_BE32(plain + 4);
desfunc(work, key->ek[0]);
desfunc(work, key->ek[1]);
desfunc(work, key->ek[2]);
WPA_PUT_BE32(crypt, work[0]);
WPA_PUT_BE32(crypt + 4, work[1]);
}
void des3_decrypt(const u8 *crypt, const struct des3_key_s *key, u8 *plain)
{
u32 work[2];
work[0] = WPA_GET_BE32(crypt);
work[1] = WPA_GET_BE32(crypt + 4);
desfunc(work, key->dk[0]);
desfunc(work, key->dk[1]);
desfunc(work, key->dk[2]);
WPA_PUT_BE32(plain, work[0]);
WPA_PUT_BE32(plain + 4, work[1]);
}*/

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/*
* MD4 hash implementation
*
* This software may be distributed under the terms of BSD license.
*/
#include "crypto/includes.h"
#include "crypto/common.h"
#include "crypto/crypto.h"
#define MD4_BLOCK_LENGTH 64
#define MD4_DIGEST_LENGTH 16
typedef struct MD4Context {
u32 state[4];
u64 count;
u8 buffer[MD4_BLOCK_LENGTH];
} MD4_CTX;
static void MD4Init(MD4_CTX *ctx);
static void MD4Update(MD4_CTX *ctx, const unsigned char *input, size_t len);
static void MD4Final(unsigned char digest[MD4_DIGEST_LENGTH], MD4_CTX *ctx);
int md4_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
{
MD4_CTX ctx;
size_t i;
MD4Init(&ctx);
for (i = 0; i < num_elem; i++)
MD4Update(&ctx, addr[i], len[i]);
MD4Final(mac, &ctx);
return 0;
}
#define MD4_DIGEST_STRING_LENGTH (MD4_DIGEST_LENGTH * 2 + 1)
static void MD4Transform(u32 state[4], const u8 block[MD4_BLOCK_LENGTH]);
#define PUT_64BIT_LE(cp, value) do { \
(cp)[7] = (value) >> 56; \
(cp)[6] = (value) >> 48; \
(cp)[5] = (value) >> 40; \
(cp)[4] = (value) >> 32; \
(cp)[3] = (value) >> 24; \
(cp)[2] = (value) >> 16; \
(cp)[1] = (value) >> 8; \
(cp)[0] = (value); } while (0)
#define PUT_32BIT_LE(cp, value) do { \
(cp)[3] = (value) >> 24; \
(cp)[2] = (value) >> 16; \
(cp)[1] = (value) >> 8; \
(cp)[0] = (value); } while (0)
static u8 PADDING[MD4_BLOCK_LENGTH] = {
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
static void MD4Init(MD4_CTX *ctx)
{
ctx->count = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xefcdab89;
ctx->state[2] = 0x98badcfe;
ctx->state[3] = 0x10325476;
}
static void MD4Update(MD4_CTX *ctx, const unsigned char *input, size_t len)
{
size_t have, need;
have = (size_t)((ctx->count >> 3) & (MD4_BLOCK_LENGTH - 1));
need = MD4_BLOCK_LENGTH - have;
ctx->count += (u64)len << 3;
if (len >= need) {
if (have != 0) {
os_memcpy(ctx->buffer + have, input, need);
MD4Transform(ctx->state, ctx->buffer);
input += need;
len -= need;
have = 0;
}
while (len >= MD4_BLOCK_LENGTH) {
MD4Transform(ctx->state, input);
input += MD4_BLOCK_LENGTH;
len -= MD4_BLOCK_LENGTH;
}
}
if (len != 0)
os_memcpy(ctx->buffer + have, input, len);
}
static void MD4Pad(MD4_CTX *ctx)
{
u8 count[8];
size_t padlen;
PUT_64BIT_LE(count, ctx->count);
padlen = MD4_BLOCK_LENGTH -
((ctx->count >> 3) & (MD4_BLOCK_LENGTH - 1));
if (padlen < 1 + 8)
padlen += MD4_BLOCK_LENGTH;
MD4Update(ctx, PADDING, padlen - 8);
MD4Update(ctx, count, 8);
}
static void MD4Final(unsigned char digest[MD4_DIGEST_LENGTH], MD4_CTX *ctx)
{
int i;
MD4Pad(ctx);
if (digest != NULL) {
for (i = 0; i < 4; i ++)
PUT_32BIT_LE(digest + i * 4, ctx->state[i]);
os_memset(ctx, 0, sizeof(*ctx));
}
}
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) ((x & y) | (x & z) | (y & z))
#define F3(x, y, z) (x ^ y ^ z)
#define MD4SETP(f, w, x, y, z, data, s) \
( w += f(x, y, z) + data, w = w<<s | w>>(32-s) )
static void MD4Transform(u32 state[4], const u8 block[MD4_BLOCK_LENGTH])
{
u32 a, b, c, d, in[MD4_BLOCK_LENGTH / 4];
os_memcpy(in, block, sizeof(in));
a = state[0];
b = state[1];
c = state[2];
d = state[3];
MD4SETP(F1, a, b, c, d, in[ 0], 3);
MD4SETP(F1, d, a, b, c, in[ 1], 7);
MD4SETP(F1, c, d, a, b, in[ 2], 11);
MD4SETP(F1, b, c, d, a, in[ 3], 19);
MD4SETP(F1, a, b, c, d, in[ 4], 3);
MD4SETP(F1, d, a, b, c, in[ 5], 7);
MD4SETP(F1, c, d, a, b, in[ 6], 11);
MD4SETP(F1, b, c, d, a, in[ 7], 19);
MD4SETP(F1, a, b, c, d, in[ 8], 3);
MD4SETP(F1, d, a, b, c, in[ 9], 7);
MD4SETP(F1, c, d, a, b, in[10], 11);
MD4SETP(F1, b, c, d, a, in[11], 19);
MD4SETP(F1, a, b, c, d, in[12], 3);
MD4SETP(F1, d, a, b, c, in[13], 7);
MD4SETP(F1, c, d, a, b, in[14], 11);
MD4SETP(F1, b, c, d, a, in[15], 19);
MD4SETP(F2, a, b, c, d, in[ 0] + 0x5a827999, 3);
MD4SETP(F2, d, a, b, c, in[ 4] + 0x5a827999, 5);
MD4SETP(F2, c, d, a, b, in[ 8] + 0x5a827999, 9);
MD4SETP(F2, b, c, d, a, in[12] + 0x5a827999, 13);
MD4SETP(F2, a, b, c, d, in[ 1] + 0x5a827999, 3);
MD4SETP(F2, d, a, b, c, in[ 5] + 0x5a827999, 5);
MD4SETP(F2, c, d, a, b, in[ 9] + 0x5a827999, 9);
MD4SETP(F2, b, c, d, a, in[13] + 0x5a827999, 13);
MD4SETP(F2, a, b, c, d, in[ 2] + 0x5a827999, 3);
MD4SETP(F2, d, a, b, c, in[ 6] + 0x5a827999, 5);
MD4SETP(F2, c, d, a, b, in[10] + 0x5a827999, 9);
MD4SETP(F2, b, c, d, a, in[14] + 0x5a827999, 13);
MD4SETP(F2, a, b, c, d, in[ 3] + 0x5a827999, 3);
MD4SETP(F2, d, a, b, c, in[ 7] + 0x5a827999, 5);
MD4SETP(F2, c, d, a, b, in[11] + 0x5a827999, 9);
MD4SETP(F2, b, c, d, a, in[15] + 0x5a827999, 13);
MD4SETP(F3, a, b, c, d, in[ 0] + 0x6ed9eba1, 3);
MD4SETP(F3, d, a, b, c, in[ 8] + 0x6ed9eba1, 9);
MD4SETP(F3, c, d, a, b, in[ 4] + 0x6ed9eba1, 11);
MD4SETP(F3, b, c, d, a, in[12] + 0x6ed9eba1, 15);
MD4SETP(F3, a, b, c, d, in[ 2] + 0x6ed9eba1, 3);
MD4SETP(F3, d, a, b, c, in[10] + 0x6ed9eba1, 9);
MD4SETP(F3, c, d, a, b, in[ 6] + 0x6ed9eba1, 11);
MD4SETP(F3, b, c, d, a, in[14] + 0x6ed9eba1, 15);
MD4SETP(F3, a, b, c, d, in[ 1] + 0x6ed9eba1, 3);
MD4SETP(F3, d, a, b, c, in[ 9] + 0x6ed9eba1, 9);
MD4SETP(F3, c, d, a, b, in[ 5] + 0x6ed9eba1, 11);
MD4SETP(F3, b, c, d, a, in[13] + 0x6ed9eba1, 15);
MD4SETP(F3, a, b, c, d, in[ 3] + 0x6ed9eba1, 3);
MD4SETP(F3, d, a, b, c, in[11] + 0x6ed9eba1, 9);
MD4SETP(F3, c, d, a, b, in[ 7] + 0x6ed9eba1, 11);
MD4SETP(F3, b, c, d, a, in[15] + 0x6ed9eba1, 15);
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
}

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/*
* WPA Supplicant / shared MSCHAPV2 helper functions / RFC 2433 / RFC 2759
* Copyright (c) 2004-2012, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "wpa/includes.h"
#include "wpa/common.h"
#include "crypto/sha1.h"
#include "crypto/ms_funcs.h"
#include "crypto/crypto.h"
/**
* utf8_to_ucs2 - Convert UTF-8 string to UCS-2 encoding
* @utf8_string: UTF-8 string (IN)
* @utf8_string_len: Length of utf8_string (IN)
* @ucs2_buffer: UCS-2 buffer (OUT)
* @ucs2_buffer_size: Length of UCS-2 buffer (IN)
* @ucs2_string_size: Number of 2-byte words in the resulting UCS-2 string
* Returns: 0 on success, -1 on failure
*/
static int utf8_to_ucs2(const u8 *utf8_string, size_t utf8_string_len,
u8 *ucs2_buffer, size_t ucs2_buffer_size,
size_t *ucs2_string_size)
{
size_t i, j;
for (i = 0, j = 0; i < utf8_string_len; i++) {
u8 c = utf8_string[i];
if (j >= ucs2_buffer_size) {
/* input too long */
return -1;
}
if (c <= 0x7F) {
WPA_PUT_LE16(ucs2_buffer + j, c);
j += 2;
} else if (i == utf8_string_len - 1 ||
j >= ucs2_buffer_size - 1) {
/* incomplete surrogate */
return -1;
} else {
u8 c2 = utf8_string[++i];
if ((c & 0xE0) == 0xC0) {
/* two-byte encoding */
WPA_PUT_LE16(ucs2_buffer + j,
((c & 0x1F) << 6) | (c2 & 0x3F));
j += 2;
} else if (i == utf8_string_len ||
j >= ucs2_buffer_size - 1) {
/* incomplete surrogate */
return -1;
} else {
/* three-byte encoding */
u8 c3 = utf8_string[++i];
WPA_PUT_LE16(ucs2_buffer + j,
((c & 0xF) << 12) |
((c2 & 0x3F) << 6) | (c3 & 0x3F));
}
}
}
if (ucs2_string_size)
*ucs2_string_size = j / 2;
return 0;
}
/**
* challenge_hash - ChallengeHash() - RFC 2759, Sect. 8.2
* @peer_challenge: 16-octet PeerChallenge (IN)
* @auth_challenge: 16-octet AuthenticatorChallenge (IN)
* @username: 0-to-256-char UserName (IN)
* @username_len: Length of username
* @challenge: 8-octet Challenge (OUT)
* Returns: 0 on success, -1 on failure
*/
static int challenge_hash(const u8 *peer_challenge, const u8 *auth_challenge,
const u8 *username, size_t username_len,
u8 *challenge)
{
u8 hash[SHA1_MAC_LEN];
const unsigned char *addr[3];
size_t len[3];
addr[0] = peer_challenge;
len[0] = 16;
addr[1] = auth_challenge;
len[1] = 16;
addr[2] = username;
len[2] = username_len;
if (sha1_vector(3, addr, len, hash))
return -1;
os_memcpy(challenge, hash, 8);
return 0;
}
/**
* nt_password_hash - NtPasswordHash() - RFC 2759, Sect. 8.3
* @password: 0-to-256-unicode-char Password (IN; UTF-8)
* @password_len: Length of password
* @password_hash: 16-octet PasswordHash (OUT)
* Returns: 0 on success, -1 on failure
*/
int nt_password_hash(const u8 *password, size_t password_len,
u8 *password_hash)
{
u8 buf[512], *pos;
size_t len, max_len;
max_len = sizeof(buf);
if (utf8_to_ucs2(password, password_len, buf, max_len, &len) < 0)
return -1;
len *= 2;
pos = buf;
return md4_vector(1, (const u8 **) &pos, &len, password_hash);
}
/**
* hash_nt_password_hash - HashNtPasswordHash() - RFC 2759, Sect. 8.4
* @password_hash: 16-octet PasswordHash (IN)
* @password_hash_hash: 16-octet PasswordHashHash (OUT)
* Returns: 0 on success, -1 on failure
*/
int hash_nt_password_hash(const u8 *password_hash, u8 *password_hash_hash)
{
size_t len = 16;
return md4_vector(1, &password_hash, &len, password_hash_hash);
}
/**
* challenge_response - ChallengeResponse() - RFC 2759, Sect. 8.5
* @challenge: 8-octet Challenge (IN)
* @password_hash: 16-octet PasswordHash (IN)
* @response: 24-octet Response (OUT)
*/
void challenge_response(const u8 *challenge, const u8 *password_hash,
u8 *response)
{
u8 zpwd[7];
des_encrypt(challenge, password_hash, response);
des_encrypt(challenge, password_hash + 7, response + 8);
zpwd[0] = password_hash[14];
zpwd[1] = password_hash[15];
os_memset(zpwd + 2, 0, 5);
des_encrypt(challenge, zpwd, response + 16);
}
/**
* generate_nt_response - GenerateNTResponse() - RFC 2759, Sect. 8.1
* @auth_challenge: 16-octet AuthenticatorChallenge (IN)
* @peer_challenge: 16-octet PeerChallenge (IN)
* @username: 0-to-256-char UserName (IN)
* @username_len: Length of username
* @password: 0-to-256-unicode-char Password (IN; UTF-8)
* @password_len: Length of password
* @response: 24-octet Response (OUT)
* Returns: 0 on success, -1 on failure
*/
int generate_nt_response(const u8 *auth_challenge, const u8 *peer_challenge,
const u8 *username, size_t username_len,
const u8 *password, size_t password_len,
u8 *response)
{
u8 challenge[8];
u8 password_hash[16];
if (challenge_hash(peer_challenge, auth_challenge, username,
username_len, challenge))
return -1;
if (nt_password_hash(password, password_len, password_hash))
return -1;
challenge_response(challenge, password_hash, response);
return 0;
}
/**
* generate_nt_response_pwhash - GenerateNTResponse() - RFC 2759, Sect. 8.1
* @auth_challenge: 16-octet AuthenticatorChallenge (IN)
* @peer_challenge: 16-octet PeerChallenge (IN)
* @username: 0-to-256-char UserName (IN)
* @username_len: Length of username
* @password_hash: 16-octet PasswordHash (IN)
* @response: 24-octet Response (OUT)
* Returns: 0 on success, -1 on failure
*/
int generate_nt_response_pwhash(const u8 *auth_challenge,
const u8 *peer_challenge,
const u8 *username, size_t username_len,
const u8 *password_hash,
u8 *response)
{
u8 challenge[8];
if (challenge_hash(peer_challenge, auth_challenge,
username, username_len,
challenge))
return -1;
challenge_response(challenge, password_hash, response);
return 0;
}
/**
* generate_authenticator_response_pwhash - GenerateAuthenticatorResponse() - RFC 2759, Sect. 8.7
* @password_hash: 16-octet PasswordHash (IN)
* @nt_response: 24-octet NT-Response (IN)
* @peer_challenge: 16-octet PeerChallenge (IN)
* @auth_challenge: 16-octet AuthenticatorChallenge (IN)
* @username: 0-to-256-char UserName (IN)
* @username_len: Length of username
* @response: 20-octet AuthenticatorResponse (OUT) (note: this value is usually
* encoded as a 42-octet ASCII string (S=hexdump_of_response)
* Returns: 0 on success, -1 on failure
*/
int generate_authenticator_response_pwhash(
const u8 *password_hash,
const u8 *peer_challenge, const u8 *auth_challenge,
const u8 *username, size_t username_len,
const u8 *nt_response, u8 *response)
{
static const u8 magic1[39] = {
0x4D, 0x61, 0x67, 0x69, 0x63, 0x20, 0x73, 0x65, 0x72, 0x76,
0x65, 0x72, 0x20, 0x74, 0x6F, 0x20, 0x63, 0x6C, 0x69, 0x65,
0x6E, 0x74, 0x20, 0x73, 0x69, 0x67, 0x6E, 0x69, 0x6E, 0x67,
0x20, 0x63, 0x6F, 0x6E, 0x73, 0x74, 0x61, 0x6E, 0x74
};
static const u8 magic2[41] = {
0x50, 0x61, 0x64, 0x20, 0x74, 0x6F, 0x20, 0x6D, 0x61, 0x6B,
0x65, 0x20, 0x69, 0x74, 0x20, 0x64, 0x6F, 0x20, 0x6D, 0x6F,
0x72, 0x65, 0x20, 0x74, 0x68, 0x61, 0x6E, 0x20, 0x6F, 0x6E,
0x65, 0x20, 0x69, 0x74, 0x65, 0x72, 0x61, 0x74, 0x69, 0x6F,
0x6E
};
u8 password_hash_hash[16], challenge[8];
const unsigned char *addr1[3];
const size_t len1[3] = { 16, 24, sizeof(magic1) };
const unsigned char *addr2[3];
const size_t len2[3] = { SHA1_MAC_LEN, 8, sizeof(magic2) };
addr1[0] = password_hash_hash;
addr1[1] = nt_response;
addr1[2] = magic1;
addr2[0] = response;
addr2[1] = challenge;
addr2[2] = magic2;
if (hash_nt_password_hash(password_hash, password_hash_hash))
return -1;
if (sha1_vector(3, addr1, len1, response))
return -1;
if (challenge_hash(peer_challenge, auth_challenge, username,
username_len, challenge))
return -1;
return sha1_vector(3, addr2, len2, response);
}
/**
* generate_authenticator_response - GenerateAuthenticatorResponse() - RFC 2759, Sect. 8.7
* @password: 0-to-256-unicode-char Password (IN; UTF-8)
* @password_len: Length of password
* @nt_response: 24-octet NT-Response (IN)
* @peer_challenge: 16-octet PeerChallenge (IN)
* @auth_challenge: 16-octet AuthenticatorChallenge (IN)
* @username: 0-to-256-char UserName (IN)
* @username_len: Length of username
* @response: 20-octet AuthenticatorResponse (OUT) (note: this value is usually
* encoded as a 42-octet ASCII string (S=hexdump_of_response)
* Returns: 0 on success, -1 on failure
*/
int generate_authenticator_response(const u8 *password, size_t password_len,
const u8 *peer_challenge,
const u8 *auth_challenge,
const u8 *username, size_t username_len,
const u8 *nt_response, u8 *response)
{
u8 password_hash[16];
if (nt_password_hash(password, password_len, password_hash))
return -1;
return generate_authenticator_response_pwhash(
password_hash, peer_challenge, auth_challenge,
username, username_len, nt_response, response);
}
/**
* nt_challenge_response - NtChallengeResponse() - RFC 2433, Sect. A.5
* @challenge: 8-octet Challenge (IN)
* @password: 0-to-256-unicode-char Password (IN; UTF-8)
* @password_len: Length of password
* @response: 24-octet Response (OUT)
* Returns: 0 on success, -1 on failure
*/
int nt_challenge_response(const u8 *challenge, const u8 *password,
size_t password_len, u8 *response)
{
u8 password_hash[16];
if (nt_password_hash(password, password_len, password_hash))
return -1;
challenge_response(challenge, password_hash, response);
return 0;
}
/**
* get_master_key - GetMasterKey() - RFC 3079, Sect. 3.4
* @password_hash_hash: 16-octet PasswordHashHash (IN)
* @nt_response: 24-octet NTResponse (IN)
* @master_key: 16-octet MasterKey (OUT)
* Returns: 0 on success, -1 on failure
*/
int get_master_key(const u8 *password_hash_hash, const u8 *nt_response,
u8 *master_key)
{
static const u8 magic1[27] = {
0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x74,
0x68, 0x65, 0x20, 0x4d, 0x50, 0x50, 0x45, 0x20, 0x4d,
0x61, 0x73, 0x74, 0x65, 0x72, 0x20, 0x4b, 0x65, 0x79
};
const unsigned char *addr[3];
const size_t len[3] = { 16, 24, sizeof(magic1) };
u8 hash[SHA1_MAC_LEN];
addr[0] = password_hash_hash;
addr[1] = nt_response;
addr[2] = magic1;
if (sha1_vector(3, addr, len, hash))
return -1;
os_memcpy(master_key, hash, 16);
return 0;
}
/**
* get_asymetric_start_key - GetAsymetricStartKey() - RFC 3079, Sect. 3.4
* @master_key: 16-octet MasterKey (IN)
* @session_key: 8-to-16 octet SessionKey (OUT)
* @session_key_len: SessionKeyLength (Length of session_key) (IN)
* @is_send: IsSend (IN, BOOLEAN)
* @is_server: IsServer (IN, BOOLEAN)
* Returns: 0 on success, -1 on failure
*/
int get_asymetric_start_key(const u8 *master_key, u8 *session_key,
size_t session_key_len, int is_send,
int is_server)
{
static const u8 magic2[84] = {
0x4f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6c, 0x69,
0x65, 0x6e, 0x74, 0x20, 0x73, 0x69, 0x64, 0x65, 0x2c, 0x20,
0x74, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x74, 0x68,
0x65, 0x20, 0x73, 0x65, 0x6e, 0x64, 0x20, 0x6b, 0x65, 0x79,
0x3b, 0x20, 0x6f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x73,
0x65, 0x72, 0x76, 0x65, 0x72, 0x20, 0x73, 0x69, 0x64, 0x65,
0x2c, 0x20, 0x69, 0x74, 0x20, 0x69, 0x73, 0x20, 0x74, 0x68,
0x65, 0x20, 0x72, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x20,
0x6b, 0x65, 0x79, 0x2e
};
static const u8 magic3[84] = {
0x4f, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6c, 0x69,
0x65, 0x6e, 0x74, 0x20, 0x73, 0x69, 0x64, 0x65, 0x2c, 0x20,
0x74, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x74, 0x68,
0x65, 0x20, 0x72, 0x65, 0x63, 0x65, 0x69, 0x76, 0x65, 0x20,
0x6b, 0x65, 0x79, 0x3b, 0x20, 0x6f, 0x6e, 0x20, 0x74, 0x68,
0x65, 0x20, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x20, 0x73,
0x69, 0x64, 0x65, 0x2c, 0x20, 0x69, 0x74, 0x20, 0x69, 0x73,
0x20, 0x74, 0x68, 0x65, 0x20, 0x73, 0x65, 0x6e, 0x64, 0x20,
0x6b, 0x65, 0x79, 0x2e
};
static const u8 shs_pad1[40] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const u8 shs_pad2[40] = {
0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2,
0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2,
0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2,
0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2
};
u8 digest[SHA1_MAC_LEN];
const unsigned char *addr[4];
const size_t len[4] = { 16, 40, 84, 40 };
addr[0] = master_key;
addr[1] = shs_pad1;
if (is_send) {
addr[2] = is_server ? magic3 : magic2;
} else {
addr[2] = is_server ? magic2 : magic3;
}
addr[3] = shs_pad2;
if (sha1_vector(4, addr, len, digest))
return -1;
if (session_key_len > SHA1_MAC_LEN)
session_key_len = SHA1_MAC_LEN;
os_memcpy(session_key, digest, session_key_len);
return 0;
}
#define PWBLOCK_LEN 516
/**
* encrypt_pw_block_with_password_hash - EncryptPwBlockWithPasswordHash() - RFC 2759, Sect. 8.10
* @password: 0-to-256-unicode-char Password (IN; UTF-8)
* @password_len: Length of password
* @password_hash: 16-octet PasswordHash (IN)
* @pw_block: 516-byte PwBlock (OUT)
* Returns: 0 on success, -1 on failure
*/
int encrypt_pw_block_with_password_hash(
const u8 *password, size_t password_len,
const u8 *password_hash, u8 *pw_block)
{
size_t ucs2_len, offset;
u8 *pos;
os_memset(pw_block, 0, PWBLOCK_LEN);
if (utf8_to_ucs2(password, password_len, pw_block, 512, &ucs2_len) < 0)
return -1;
if (ucs2_len > 256)
return -1;
offset = (256 - ucs2_len) * 2;
if (offset != 0) {
os_memmove(pw_block + offset, pw_block, ucs2_len * 2);
if (os_get_random(pw_block, offset) < 0)
return -1;
}
/*
* PasswordLength is 4 octets, but since the maximum password length is
* 256, only first two (in little endian byte order) can be non-zero.
*/
pos = &pw_block[2 * 256];
WPA_PUT_LE16(pos, password_len * 2);
rc4_skip(password_hash, 16, 0, pw_block, PWBLOCK_LEN);
return 0;
}
/**
* new_password_encrypted_with_old_nt_password_hash - NewPasswordEncryptedWithOldNtPasswordHash() - RFC 2759, Sect. 8.9
* @new_password: 0-to-256-unicode-char NewPassword (IN; UTF-8)
* @new_password_len: Length of new_password
* @old_password: 0-to-256-unicode-char OldPassword (IN; UTF-8)
* @old_password_len: Length of old_password
* @encrypted_pw_block: 516-octet EncryptedPwBlock (OUT)
* Returns: 0 on success, -1 on failure
*/
int new_password_encrypted_with_old_nt_password_hash(
const u8 *new_password, size_t new_password_len,
const u8 *old_password, size_t old_password_len,
u8 *encrypted_pw_block)
{
u8 password_hash[16];
if (nt_password_hash(old_password, old_password_len, password_hash))
return -1;
if (encrypt_pw_block_with_password_hash(new_password, new_password_len,
password_hash,
encrypted_pw_block))
return -1;
return 0;
}
/**
* nt_password_hash_encrypted_with_block - NtPasswordHashEncryptedWithBlock() - RFC 2759, Sect 8.13
* @password_hash: 16-octer PasswordHash (IN)
* @block: 16-octet Block (IN)
* @cypher: 16-octer Cypher (OUT)
*/
void nt_password_hash_encrypted_with_block(const u8 *password_hash,
const u8 *block, u8 *cypher)
{
des_encrypt(password_hash, block, cypher);
des_encrypt(password_hash + 8, block + 7, cypher + 8);
}
/**
* old_nt_password_hash_encrypted_with_new_nt_password_hash - OldNtPasswordHashEncryptedWithNewNtPasswordHash() - RFC 2759, Sect. 8.12
* @new_password: 0-to-256-unicode-char NewPassword (IN; UTF-8)
* @new_password_len: Length of new_password
* @old_password: 0-to-256-unicode-char OldPassword (IN; UTF-8)
* @old_password_len: Length of old_password
* @encrypted_password_hash: 16-octet EncryptedPasswordHash (OUT)
* Returns: 0 on success, -1 on failure
*/
int old_nt_password_hash_encrypted_with_new_nt_password_hash(
const u8 *new_password, size_t new_password_len,
const u8 *old_password, size_t old_password_len,
u8 *encrypted_password_hash)
{
u8 old_password_hash[16], new_password_hash[16];
if (nt_password_hash(old_password, old_password_len,
old_password_hash) ||
nt_password_hash(new_password, new_password_len,
new_password_hash))
return -1;
nt_password_hash_encrypted_with_block(old_password_hash,
new_password_hash,
encrypted_password_hash);
return 0;
}