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path: root/drivers/staging/rt3090/common/crypt_hmac.c
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Diffstat (limited to 'drivers/staging/rt3090/common/crypt_hmac.c')
-rw-r--r--drivers/staging/rt3090/common/crypt_hmac.c279
1 files changed, 279 insertions, 0 deletions
diff --git a/drivers/staging/rt3090/common/crypt_hmac.c b/drivers/staging/rt3090/common/crypt_hmac.c
new file mode 100644
index 000000000000..e2854082f1d9
--- /dev/null
+++ b/drivers/staging/rt3090/common/crypt_hmac.c
@@ -0,0 +1,279 @@
+/*
+ *************************************************************************
+ * Ralink Tech Inc.
+ * 5F., No.36, Taiyuan St., Jhubei City,
+ * Hsinchu County 302,
+ * Taiwan, R.O.C.
+ *
+ * (c) Copyright 2002-2007, Ralink Technology, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ *************************************************************************/
+
+#include "../crypt_hmac.h"
+
+
+#ifdef HMAC_SHA1_SUPPORT
+/*
+========================================================================
+Routine Description:
+ HMAC using SHA1 hash function
+
+Arguments:
+ key Secret key
+ key_len The length of the key in bytes
+ message Message context
+ message_len The length of message in bytes
+ macLen Request the length of message authentication code
+
+Return Value:
+ mac Message authentication code
+
+Note:
+ None
+========================================================================
+*/
+VOID HMAC_SHA1 (
+ IN const UINT8 Key[],
+ IN UINT KeyLen,
+ IN const UINT8 Message[],
+ IN UINT MessageLen,
+ OUT UINT8 MAC[],
+ IN UINT MACLen)
+{
+ SHA1_CTX_STRUC sha_ctx1;
+ SHA1_CTX_STRUC sha_ctx2;
+ UINT8 K0[SHA1_BLOCK_SIZE];
+ UINT8 Digest[SHA1_DIGEST_SIZE];
+ UINT index;
+
+ NdisZeroMemory(&sha_ctx1, sizeof(SHA1_CTX_STRUC));
+ NdisZeroMemory(&sha_ctx2, sizeof(SHA1_CTX_STRUC));
+ /*
+ * If the length of K = B(Block size): K0 = K.
+ * If the length of K > B: hash K to obtain an L byte string,
+ * then append (B-L) zeros to create a B-byte string K0 (i.e., K0 = H(K) || 00...00).
+ * If the length of K < B: append zeros to the end of K to create a B-byte string K0
+ */
+ NdisZeroMemory(K0, SHA1_BLOCK_SIZE);
+ if (KeyLen <= SHA1_BLOCK_SIZE)
+ NdisMoveMemory(K0, Key, KeyLen);
+ else
+ RT_SHA1(Key, KeyLen, K0);
+ /* End of if */
+
+ /* Exclusive-Or K0 with ipad */
+ /* ipad: Inner pad; the byte x��36�� repeated B times. */
+ for (index = 0; index < SHA1_BLOCK_SIZE; index++)
+ K0[index] ^= 0x36;
+ /* End of for */
+
+ SHA1_Init(&sha_ctx1);
+ /* H(K0^ipad) */
+ SHA1_Append(&sha_ctx1, K0, sizeof(K0));
+ /* H((K0^ipad)||text) */
+ SHA1_Append(&sha_ctx1, Message, MessageLen);
+ SHA1_End(&sha_ctx1, Digest);
+
+ /* Exclusive-Or K0 with opad and remove ipad */
+ /* opad: Outer pad; the byte x��5c�� repeated B times. */
+ for (index = 0; index < SHA1_BLOCK_SIZE; index++)
+ K0[index] ^= 0x36^0x5c;
+ /* End of for */
+
+ SHA1_Init(&sha_ctx2);
+ /* H(K0^opad) */
+ SHA1_Append(&sha_ctx2, K0, sizeof(K0));
+ /* H( (K0^opad) || H((K0^ipad)||text) ) */
+ SHA1_Append(&sha_ctx2, Digest, SHA1_DIGEST_SIZE);
+ SHA1_End(&sha_ctx2, Digest);
+
+ if (MACLen > SHA1_DIGEST_SIZE)
+ NdisMoveMemory(MAC, Digest, SHA1_DIGEST_SIZE);
+ else
+ NdisMoveMemory(MAC, Digest, MACLen);
+} /* End of HMAC_SHA1 */
+#endif /* HMAC_SHA1_SUPPORT */
+
+
+#ifdef HMAC_SHA256_SUPPORT
+/*
+========================================================================
+Routine Description:
+ HMAC using SHA256 hash function
+
+Arguments:
+ key Secret key
+ key_len The length of the key in bytes
+ message Message context
+ message_len The length of message in bytes
+ macLen Request the length of message authentication code
+
+Return Value:
+ mac Message authentication code
+
+Note:
+ None
+========================================================================
+*/
+VOID HMAC_SHA256 (
+ IN const UINT8 Key[],
+ IN UINT KeyLen,
+ IN const UINT8 Message[],
+ IN UINT MessageLen,
+ OUT UINT8 MAC[],
+ IN UINT MACLen)
+{
+ SHA256_CTX_STRUC sha_ctx1;
+ SHA256_CTX_STRUC sha_ctx2;
+ UINT8 K0[SHA256_BLOCK_SIZE];
+ UINT8 Digest[SHA256_DIGEST_SIZE];
+ UINT index;
+
+ NdisZeroMemory(&sha_ctx1, sizeof(SHA256_CTX_STRUC));
+ NdisZeroMemory(&sha_ctx2, sizeof(SHA256_CTX_STRUC));
+ /*
+ * If the length of K = B(Block size): K0 = K.
+ * If the length of K > B: hash K to obtain an L byte string,
+ * then append (B-L) zeros to create a B-byte string K0 (i.e., K0 = H(K) || 00...00).
+ * If the length of K < B: append zeros to the end of K to create a B-byte string K0
+ */
+ NdisZeroMemory(K0, SHA256_BLOCK_SIZE);
+ if (KeyLen <= SHA256_BLOCK_SIZE) {
+ NdisMoveMemory(K0, Key, KeyLen);
+ } else {
+ RT_SHA256(Key, KeyLen, K0);
+ }
+
+ /* Exclusive-Or K0 with ipad */
+ /* ipad: Inner pad; the byte x��36�� repeated B times. */
+ for (index = 0; index < SHA256_BLOCK_SIZE; index++)
+ K0[index] ^= 0x36;
+ /* End of for */
+
+ SHA256_Init(&sha_ctx1);
+ /* H(K0^ipad) */
+ SHA256_Append(&sha_ctx1, K0, sizeof(K0));
+ /* H((K0^ipad)||text) */
+ SHA256_Append(&sha_ctx1, Message, MessageLen);
+ SHA256_End(&sha_ctx1, Digest);
+
+ /* Exclusive-Or K0 with opad and remove ipad */
+ /* opad: Outer pad; the byte x��5c�� repeated B times. */
+ for (index = 0; index < SHA256_BLOCK_SIZE; index++)
+ K0[index] ^= 0x36^0x5c;
+ /* End of for */
+
+ SHA256_Init(&sha_ctx2);
+ /* H(K0^opad) */
+ SHA256_Append(&sha_ctx2, K0, sizeof(K0));
+ /* H( (K0^opad) || H((K0^ipad)||text) ) */
+ SHA256_Append(&sha_ctx2, Digest, SHA256_DIGEST_SIZE);
+ SHA256_End(&sha_ctx2, Digest);
+
+ if (MACLen > SHA256_DIGEST_SIZE)
+ NdisMoveMemory(MAC, Digest,SHA256_DIGEST_SIZE);
+ else
+ NdisMoveMemory(MAC, Digest, MACLen);
+
+} /* End of HMAC_SHA256 */
+#endif /* HMAC_SHA256_SUPPORT */
+
+
+#ifdef HMAC_MD5_SUPPORT
+/*
+========================================================================
+Routine Description:
+ HMAC using MD5 hash function
+
+Arguments:
+ key Secret key
+ key_len The length of the key in bytes
+ message Message context
+ message_len The length of message in bytes
+ macLen Request the length of message authentication code
+
+Return Value:
+ mac Message authentication code
+
+Note:
+ None
+========================================================================
+*/
+VOID HMAC_MD5(
+ IN const UINT8 Key[],
+ IN UINT KeyLen,
+ IN const UINT8 Message[],
+ IN UINT MessageLen,
+ OUT UINT8 MAC[],
+ IN UINT MACLen)
+{
+ MD5_CTX_STRUC md5_ctx1;
+ MD5_CTX_STRUC md5_ctx2;
+ UINT8 K0[MD5_BLOCK_SIZE];
+ UINT8 Digest[MD5_DIGEST_SIZE];
+ UINT index;
+
+ NdisZeroMemory(&md5_ctx1, sizeof(MD5_CTX_STRUC));
+ NdisZeroMemory(&md5_ctx2, sizeof(MD5_CTX_STRUC));
+ /*
+ * If the length of K = B(Block size): K0 = K.
+ * If the length of K > B: hash K to obtain an L byte string,
+ * then append (B-L) zeros to create a B-byte string K0 (i.e., K0 = H(K) || 00...00).
+ * If the length of K < B: append zeros to the end of K to create a B-byte string K0
+ */
+ NdisZeroMemory(K0, MD5_BLOCK_SIZE);
+ if (KeyLen <= MD5_BLOCK_SIZE) {
+ NdisMoveMemory(K0, Key, KeyLen);
+ } else {
+ RT_MD5(Key, KeyLen, K0);
+ }
+
+ /* Exclusive-Or K0 with ipad */
+ /* ipad: Inner pad; the byte x��36�� repeated B times. */
+ for (index = 0; index < MD5_BLOCK_SIZE; index++)
+ K0[index] ^= 0x36;
+ /* End of for */
+
+ MD5_Init(&md5_ctx1);
+ /* H(K0^ipad) */
+ MD5_Append(&md5_ctx1, K0, sizeof(K0));
+ /* H((K0^ipad)||text) */
+ MD5_Append(&md5_ctx1, Message, MessageLen);
+ MD5_End(&md5_ctx1, Digest);
+
+ /* Exclusive-Or K0 with opad and remove ipad */
+ /* opad: Outer pad; the byte x��5c�� repeated B times. */
+ for (index = 0; index < MD5_BLOCK_SIZE; index++)
+ K0[index] ^= 0x36^0x5c;
+ /* End of for */
+
+ MD5_Init(&md5_ctx2);
+ /* H(K0^opad) */
+ MD5_Append(&md5_ctx2, K0, sizeof(K0));
+ /* H( (K0^opad) || H((K0^ipad)||text) ) */
+ MD5_Append(&md5_ctx2, Digest, MD5_DIGEST_SIZE);
+ MD5_End(&md5_ctx2, Digest);
+
+ if (MACLen > MD5_DIGEST_SIZE)
+ NdisMoveMemory(MAC, Digest, MD5_DIGEST_SIZE);
+ else
+ NdisMoveMemory(MAC, Digest, MACLen);
+} /* End of HMAC_SHA256 */
+#endif /* HMAC_MD5_SUPPORT */
+
+/* End of crypt_hmac.c */
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-27 09:10:13 +0000