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usr / src / contrib / wpa / src / eap_common /

📁 ..
📄 chap.c(602 B)
📄 chap.h(388 B)
📄 eap_common.c(7.31 KB)
📄 eap_common.h(905 B)
📄 eap_defs.h(3.43 KB)
📄 eap_eke_common.c(16.75 KB)
📄 eap_eke_common.h(3.47 KB)
📄 eap_fast_common.c(7.19 KB)
📄 eap_fast_common.h(2.87 KB)
📄 eap_gpsk_common.c(14.28 KB)
📄 eap_gpsk_common.h(2 KB)
📄 eap_ikev2_common.c(2.78 KB)
📄 eap_ikev2_common.h(832 B)
📄 eap_pax_common.c(4.4 KB)
📄 eap_pax_common.h(2.2 KB)
📄 eap_peap_common.c(1.74 KB)
📄 eap_peap_common.h(425 B)
📄 eap_psk_common.c(1.52 KB)
📄 eap_psk_common.h(1.72 KB)
📄 eap_pwd_common.c(12.25 KB)
📄 eap_pwd_common.h(2.62 KB)
📄 eap_sake_common.c(10.64 KB)
📄 eap_sake_common.h(2.41 KB)
📄 eap_sim_common.c(31.96 KB)
📄 eap_sim_common.h(7.62 KB)
📄 eap_teap_common.c(20.43 KB)
📄 eap_teap_common.h(5.67 KB)
📄 eap_tlv_common.h(2.57 KB)
📄 eap_ttls.h(1.58 KB)
📄 eap_wsc_common.c(784 B)
📄 eap_wsc_common.h(644 B)
📄 ikev2_common.c(17.17 KB)
📄 ikev2_common.h(8.11 KB)

Editing: eap_peap_common.c

/*
 * EAP-PEAP common routines
 * Copyright (c) 2008-2011, Jouni Malinen <j@w1.fi>
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "includes.h"

#include "common.h"
#include "crypto/sha1.h"
#include "eap_peap_common.h"

int peap_prfplus(int version, const u8 *key, size_t key_len,
		 const char *label, const u8 *seed, size_t seed_len,
		 u8 *buf, size_t buf_len)
{
	unsigned char counter = 0;
	size_t pos, plen;
	u8 hash[SHA1_MAC_LEN];
	size_t label_len = os_strlen(label);
	u8 extra[2];
	const unsigned char *addr[5];
	size_t len[5];

addr[0] = hash;
	len[0] = 0;
	addr[1] = (unsigned char *) label;
	len[1] = label_len;
	addr[2] = seed;
	len[2] = seed_len;

if (version == 0) {
		/*
		 * PRF+(K, S, LEN) = T1 | T2 | ... | Tn
		 * T1 = HMAC-SHA1(K, S | 0x01 | 0x00 | 0x00)
		 * T2 = HMAC-SHA1(K, T1 | S | 0x02 | 0x00 | 0x00)
		 * ...
		 * Tn = HMAC-SHA1(K, Tn-1 | S | n | 0x00 | 0x00)
		 */

extra[0] = 0;
		extra[1] = 0;

addr[3] = &counter;
		len[3] = 1;
		addr[4] = extra;
		len[4] = 2;
	} else {
		/*
		 * PRF (K,S,LEN) = T1 | T2 | T3 | T4 | ... where:
		 * T1 = HMAC-SHA1(K, S | LEN | 0x01)
		 * T2 = HMAC-SHA1 (K, T1 | S | LEN | 0x02)
		 * T3 = HMAC-SHA1 (K, T2 | S | LEN | 0x03)
		 * T4 = HMAC-SHA1 (K, T3 | S | LEN | 0x04)
		 *   ...
		 */

extra[0] = buf_len & 0xff;

addr[3] = extra;
		len[3] = 1;
		addr[4] = &counter;
		len[4] = 1;
	}

pos = 0;
	while (pos < buf_len) {
		counter++;
		plen = buf_len - pos;
		if (hmac_sha1_vector(key, key_len, 5, addr, len, hash) < 0)
			return -1;
		if (plen >= SHA1_MAC_LEN) {
			os_memcpy(&buf[pos], hash, SHA1_MAC_LEN);
			pos += SHA1_MAC_LEN;
		} else {
			os_memcpy(&buf[pos], hash, plen);
			break;
		}
		len[0] = SHA1_MAC_LEN;
	}

return 0;
}

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Editing: eap_peap_common.c

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