1/* 2 * EAP server/peer: EAP-PAX shared routines 3 * Copyright (c) 2005-2007, 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_PAX_COMMON_H 10#define EAP_PAX_COMMON_H 11 12#ifdef _MSC_VER 13#pragma pack(push, 1) 14#endif /* _MSC_VER */ 15 16struct eap_pax_hdr { 17 u8 op_code; 18 u8 flags; 19 u8 mac_id; 20 u8 dh_group_id; 21 u8 public_key_id; 22 /* Followed by variable length payload and ICV */ 23} STRUCT_PACKED; 24 25#ifdef _MSC_VER 26#pragma pack(pop) 27#endif /* _MSC_VER */ 28 29 30/* op_code: */ 31enum { 32 EAP_PAX_OP_STD_1 = 0x01, 33 EAP_PAX_OP_STD_2 = 0x02, 34 EAP_PAX_OP_STD_3 = 0x03, 35 EAP_PAX_OP_SEC_1 = 0x11, 36 EAP_PAX_OP_SEC_2 = 0x12, 37 EAP_PAX_OP_SEC_3 = 0x13, 38 EAP_PAX_OP_SEC_4 = 0x14, 39 EAP_PAX_OP_SEC_5 = 0x15, 40 EAP_PAX_OP_ACK = 0x21 41}; 42 43/* flags: */ 44#define EAP_PAX_FLAGS_MF 0x01 45#define EAP_PAX_FLAGS_CE 0x02 46#define EAP_PAX_FLAGS_AI 0x04 47 48/* mac_id: */ 49#define EAP_PAX_MAC_HMAC_SHA1_128 0x01 50#define EAP_PAX_HMAC_SHA256_128 0x02 51 52/* dh_group_id: */ 53#define EAP_PAX_DH_GROUP_NONE 0x00 54#define EAP_PAX_DH_GROUP_2048_MODP 0x01 55#define EAP_PAX_DH_GROUP_3072_MODP 0x02 56#define EAP_PAX_DH_GROUP_NIST_ECC_P_256 0x03 57 58/* public_key_id: */ 59#define EAP_PAX_PUBLIC_KEY_NONE 0x00 60#define EAP_PAX_PUBLIC_KEY_RSAES_OAEP 0x01 61#define EAP_PAX_PUBLIC_KEY_RSA_PKCS1_V1_5 0x02 62#define EAP_PAX_PUBLIC_KEY_EL_GAMAL_NIST_ECC 0x03 63 64/* ADE type: */ 65#define EAP_PAX_ADE_VENDOR_SPECIFIC 0x01 66#define EAP_PAX_ADE_CLIENT_CHANNEL_BINDING 0x02 67#define EAP_PAX_ADE_SERVER_CHANNEL_BINDING 0x03 68 69 70#define EAP_PAX_RAND_LEN 32 71#define EAP_PAX_MAC_LEN 16 72#define EAP_PAX_ICV_LEN 16 73#define EAP_PAX_AK_LEN 16 74#define EAP_PAX_MK_LEN 16 75#define EAP_PAX_CK_LEN 16 76#define EAP_PAX_ICK_LEN 16 77 78 79int eap_pax_kdf(u8 mac_id, const u8 *key, size_t key_len, 80 const char *identifier, 81 const u8 *entropy, size_t entropy_len, 82 size_t output_len, u8 *output); 83int eap_pax_mac(u8 mac_id, const u8 *key, size_t key_len, 84 const u8 *data1, size_t data1_len, 85 const u8 *data2, size_t data2_len, 86 const u8 *data3, size_t data3_len, 87 u8 *mac); 88int eap_pax_initial_key_derivation(u8 mac_id, const u8 *ak, const u8 *e, 89 u8 *mk, u8 *ck, u8 *ick); 90 91#endif /* EAP_PAX_COMMON_H */ 92