1 /* 2 * EAP server/peer: EAP-GPSK shared routines 3 * Copyright (c) 2006-2007, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #ifndef EAP_GPSK_COMMON_H 10 #define EAP_GPSK_COMMON_H 11 12 #define EAP_GPSK_OPCODE_GPSK_1 1 13 #define EAP_GPSK_OPCODE_GPSK_2 2 14 #define EAP_GPSK_OPCODE_GPSK_3 3 15 #define EAP_GPSK_OPCODE_GPSK_4 4 16 #define EAP_GPSK_OPCODE_FAIL 5 17 #define EAP_GPSK_OPCODE_PROTECTED_FAIL 6 18 19 /* Failure-Code in GPSK-Fail and GPSK-Protected-Fail */ 20 #define EAP_GPSK_FAIL_PSK_NOT_FOUND 0x00000001 21 #define EAP_GPSK_FAIL_AUTHENTICATION_FAILURE 0x00000002 22 #define EAP_GPSK_FAIL_AUTHORIZATION_FAILURE 0x00000003 23 24 #define EAP_GPSK_RAND_LEN 32 25 #define EAP_GPSK_MAX_SK_LEN 32 26 #define EAP_GPSK_MAX_PK_LEN 32 27 #define EAP_GPSK_MAX_MIC_LEN 32 28 29 #define EAP_GPSK_VENDOR_IETF 0x00000000 30 #define EAP_GPSK_CIPHER_RESERVED 0x000000 31 #define EAP_GPSK_CIPHER_AES 0x000001 32 #define EAP_GPSK_CIPHER_SHA256 0x000002 33 34 35 #ifdef _MSC_VER 36 #pragma pack(push, 1) 37 #endif /* _MSC_VER */ 38 39 struct eap_gpsk_csuite { 40 u8 vendor[4]; 41 u8 specifier[2]; 42 } STRUCT_PACKED; 43 44 #ifdef _MSC_VER 45 #pragma pack(pop) 46 #endif /* _MSC_VER */ 47 48 int eap_gpsk_supported_ciphersuite(int vendor, int specifier); 49 int eap_gpsk_derive_keys(const u8 *psk, size_t psk_len, int vendor, 50 int specifier, 51 const u8 *rand_client, const u8 *rand_server, 52 const u8 *id_client, size_t id_client_len, 53 const u8 *id_server, size_t id_server_len, 54 u8 *msk, u8 *emsk, u8 *sk, size_t *sk_len, 55 u8 *pk, size_t *pk_len); 56 int eap_gpsk_derive_session_id(const u8 *psk, size_t psk_len, int vendor, 57 int specifier, 58 const u8 *rand_peer, const u8 *rand_server, 59 const u8 *id_peer, size_t id_peer_len, 60 const u8 *id_server, size_t id_server_len, 61 u8 method_type, u8 *sid, size_t *sid_len); 62 size_t eap_gpsk_mic_len(int vendor, int specifier); 63 int eap_gpsk_compute_mic(const u8 *sk, size_t sk_len, int vendor, 64 int specifier, const u8 *data, size_t len, u8 *mic); 65 66 #endif /* EAP_GPSK_COMMON_H */ 67