1 files changed, 2 insertions, 61 deletions
diff --git a/src/crypto/sha1.c b/src/crypto/sha1.c
index fe00bdbc58699..d48c77d75c5f0 100644
--- a/src/crypto/sha1.c
+++ b/src/crypto/sha1.c
@@ -2,14 +2,8 @@
  * SHA1 hash implementation and interface functions
  * 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.
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
  */
 
 #include "includes.h"
@@ -108,56 +102,3 @@ int hmac_sha1(const u8 *key, size_t key_len, const u8 *data, size_t data_len,
 {
 	return hmac_sha1_vector(key, key_len, 1, &data, &data_len, mac);
 }
-
-
-/**
- * sha1_prf - SHA1-based Pseudo-Random Function (PRF) (IEEE 802.11i, 8.5.1.1)
- * @key: Key for PRF
- * @key_len: Length of the key in bytes
- * @label: A unique label for each purpose of the PRF
- * @data: Extra data to bind into the key
- * @data_len: Length of the data
- * @buf: Buffer for the generated pseudo-random key
- * @buf_len: Number of bytes of key to generate
- * Returns: 0 on success, -1 of failure
- *
- * This function is used to derive new, cryptographically separate keys from a
- * given key (e.g., PMK in IEEE 802.11i).
- */
-int sha1_prf(const u8 *key, size_t key_len, const char *label,
-	     const u8 *data, size_t data_len, u8 *buf, size_t buf_len)
-{
-	u8 counter = 0;
-	size_t pos, plen;
-	u8 hash[SHA1_MAC_LEN];
-	size_t label_len = os_strlen(label) + 1;
-	const unsigned char *addr[3];
-	size_t len[3];
-
-	addr[0] = (u8 *) label;
-	len[0] = label_len;
-	addr[1] = data;
-	len[1] = data_len;
-	addr[2] = &counter;
-	len[2] = 1;
-
-	pos = 0;
-	while (pos < buf_len) {
-		plen = buf_len - pos;
-		if (plen >= SHA1_MAC_LEN) {
-			if (hmac_sha1_vector(key, key_len, 3, addr, len,
-					     &buf[pos]))
-				return -1;
-			pos += SHA1_MAC_LEN;
-		} else {
-			if (hmac_sha1_vector(key, key_len, 3, addr, len,
-					     hash))
-				return -1;
-			os_memcpy(&buf[pos], hash, plen);
-			break;
-		}
-		counter++;
-	}
-
-	return 0;
-}