/*
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* EAP server/peer: EAP-PAX shared routines
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* Copyright (c) 2005-2007, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#ifndef EAP_PAX_COMMON_H
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#define EAP_PAX_COMMON_H
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#ifdef _MSC_VER
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#pragma pack(push, 1)
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#endif /* _MSC_VER */
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struct eap_pax_hdr {
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u8 op_code;
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u8 flags;
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u8 mac_id;
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u8 dh_group_id;
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u8 public_key_id;
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/* Followed by variable length payload and ICV */
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} STRUCT_PACKED;
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#ifdef _MSC_VER
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#pragma pack(pop)
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#endif /* _MSC_VER */
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/* op_code: */
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enum {
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EAP_PAX_OP_STD_1 = 0x01,
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EAP_PAX_OP_STD_2 = 0x02,
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EAP_PAX_OP_STD_3 = 0x03,
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EAP_PAX_OP_SEC_1 = 0x11,
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EAP_PAX_OP_SEC_2 = 0x12,
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EAP_PAX_OP_SEC_3 = 0x13,
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EAP_PAX_OP_SEC_4 = 0x14,
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EAP_PAX_OP_SEC_5 = 0x15,
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EAP_PAX_OP_ACK = 0x21
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};
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/* flags: */
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#define EAP_PAX_FLAGS_MF 0x01
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#define EAP_PAX_FLAGS_CE 0x02
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#define EAP_PAX_FLAGS_AI 0x04
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/* mac_id: */
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#define EAP_PAX_MAC_HMAC_SHA1_128 0x01
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#define EAP_PAX_HMAC_SHA256_128 0x02
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/* dh_group_id: */
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#define EAP_PAX_DH_GROUP_NONE 0x00
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#define EAP_PAX_DH_GROUP_2048_MODP 0x01
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#define EAP_PAX_DH_GROUP_3072_MODP 0x02
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#define EAP_PAX_DH_GROUP_NIST_ECC_P_256 0x03
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/* public_key_id: */
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#define EAP_PAX_PUBLIC_KEY_NONE 0x00
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#define EAP_PAX_PUBLIC_KEY_RSAES_OAEP 0x01
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#define EAP_PAX_PUBLIC_KEY_RSA_PKCS1_V1_5 0x02
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#define EAP_PAX_PUBLIC_KEY_EL_GAMAL_NIST_ECC 0x03
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/* ADE type: */
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#define EAP_PAX_ADE_VENDOR_SPECIFIC 0x01
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#define EAP_PAX_ADE_CLIENT_CHANNEL_BINDING 0x02
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#define EAP_PAX_ADE_SERVER_CHANNEL_BINDING 0x03
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#define EAP_PAX_RAND_LEN 32
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#define EAP_PAX_MAC_LEN 16
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#define EAP_PAX_ICV_LEN 16
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#define EAP_PAX_AK_LEN 16
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#define EAP_PAX_MK_LEN 16
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#define EAP_PAX_CK_LEN 16
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#define EAP_PAX_ICK_LEN 16
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#define EAP_PAX_MID_LEN 16
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int eap_pax_kdf(u8 mac_id, const u8 *key, size_t key_len,
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const char *identifier,
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const u8 *entropy, size_t entropy_len,
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size_t output_len, u8 *output);
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int eap_pax_mac(u8 mac_id, const u8 *key, size_t key_len,
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const u8 *data1, size_t data1_len,
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const u8 *data2, size_t data2_len,
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const u8 *data3, size_t data3_len,
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u8 *mac);
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int eap_pax_initial_key_derivation(u8 mac_id, const u8 *ak, const u8 *e,
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u8 *mk, u8 *ck, u8 *ick, u8 *mid);
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#endif /* EAP_PAX_COMMON_H */
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