Import moonshot-gss-eap_1.0.1.orig.tar.gz

[mech_eap.git] / libeap / src / crypto / sha1-pbkdf2.c

diff --git a/libeap/src/crypto/sha1-pbkdf2.c b/libeap/src/crypto/sha1-pbkdf2.c
deleted file mode 100644 (file)
index 11323de..0000000
--- a/libeap/src/crypto/sha1-pbkdf2.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * SHA1-based key derivation function (PBKDF2) for IEEE 802.11i
- * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
- */
-
-#include "includes.h"
-
-#include "common.h"
-#include "sha1.h"
-#include "md5.h"
-#include "crypto.h"
-
-static int pbkdf2_sha1_f(const char *passphrase, const char *ssid,
-                        size_t ssid_len, int iterations, unsigned int count,
-                        u8 *digest)
-{
-       unsigned char tmp[SHA1_MAC_LEN], tmp2[SHA1_MAC_LEN];
-       int i, j;
-       unsigned char count_buf[4];
-       const u8 *addr[2];
-       size_t len[2];
-       size_t passphrase_len = os_strlen(passphrase);
-
-       addr[0] = (u8 *) ssid;
-       len[0] = ssid_len;
-       addr[1] = count_buf;
-       len[1] = 4;
-
-       /* F(P, S, c, i) = U1 xor U2 xor ... Uc
-        * U1 = PRF(P, S || i)
-        * U2 = PRF(P, U1)
-        * Uc = PRF(P, Uc-1)
-        */
-
-       count_buf[0] = (count >> 24) & 0xff;
-       count_buf[1] = (count >> 16) & 0xff;
-       count_buf[2] = (count >> 8) & 0xff;
-       count_buf[3] = count & 0xff;
-       if (hmac_sha1_vector((u8 *) passphrase, passphrase_len, 2, addr, len,
-                            tmp))
-               return -1;
-       os_memcpy(digest, tmp, SHA1_MAC_LEN);
-
-       for (i = 1; i < iterations; i++) {
-               if (hmac_sha1((u8 *) passphrase, passphrase_len, tmp,
-                             SHA1_MAC_LEN, tmp2))
-                       return -1;
-               os_memcpy(tmp, tmp2, SHA1_MAC_LEN);
-               for (j = 0; j < SHA1_MAC_LEN; j++)
-                       digest[j] ^= tmp2[j];
-       }
-
-       return 0;
-}
-
-
-/**
- * pbkdf2_sha1 - SHA1-based key derivation function (PBKDF2) for IEEE 802.11i
- * @passphrase: ASCII passphrase
- * @ssid: SSID
- * @ssid_len: SSID length in bytes
- * @iterations: Number of iterations to run
- * @buf: Buffer for the generated key
- * @buflen: Length of the buffer in bytes
- * Returns: 0 on success, -1 of failure
- *
- * This function is used to derive PSK for WPA-PSK. For this protocol,
- * iterations is set to 4096 and buflen to 32. This function is described in
- * IEEE Std 802.11-2004, Clause H.4. The main construction is from PKCS#5 v2.0.
- */
-int pbkdf2_sha1(const char *passphrase, const char *ssid, size_t ssid_len,
-               int iterations, u8 *buf, size_t buflen)
-{
-       unsigned int count = 0;
-       unsigned char *pos = buf;
-       size_t left = buflen, plen;
-       unsigned char digest[SHA1_MAC_LEN];
-
-       while (left > 0) {
-               count++;
-               if (pbkdf2_sha1_f(passphrase, ssid, ssid_len, iterations,
-                                 count, digest))
-                       return -1;
-               plen = left > SHA1_MAC_LEN ? SHA1_MAC_LEN : left;
-               os_memcpy(pos, digest, plen);
-               pos += plen;
-               left -= plen;
-       }
-
-       return 0;
-}