1 files changed, 115 insertions, 0 deletions

diff --git a/utils/imxtools/crypto.h b/utils/imxtools/crypto.h
new file mode 100644
index 0000000000..452db6a28d
--- /dev/null
+++ b/utils/imxtools/crypto.h
@@ -0,0 +1,115 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2010 Amaury Pouly
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef __CRYPTO_H__
+#define __CRYPTO_H__
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+typedef uint8_t byte;
+
+/* aes128.c */
+void xor_(byte *a, byte *b, int n);
+void EncryptAES(byte *msg, byte *key, byte *c);
+void DecryptAES(byte *c, byte *key, byte *m);
+void Pretty(byte* b,int len,const char* label);
+void cbc_mac(
+    byte *in_data, /* Input data */
+    byte *out_data, /* Output data (or NULL) */
+    int nr_blocks, /* Number of blocks to encrypt/decrypt (one block=16 bytes) */
+    byte key[16], /* Key */
+    byte iv[16], /* Initialisation Vector */
+    byte (*out_cbc_mac)[16], /* CBC-MAC of the result (or NULL) */
+    int encrypt /* 1 to encrypt, 0 to decrypt */
+    );
+
+/* crypto.c */
+enum crypto_method_t
+{
+    CRYPTO_NONE, /* disable */
+    CRYPTO_KEY, /* key */
+    CRYPTO_USBOTP, /* use usbotp device */
+};
+
+/* parameter can be:
+ * - CRYPTO_KEY: array of 16-bytes (the key)
+ * - CRYPTO_USBOTP: 32-bit integer: vid << 16 | pid */
+void crypto_setup(enum crypto_method_t method, void *param);
+
+#define CRYPTO_ERROR_SUCCESS    0
+#define CRYPTO_ERROR_BADSETUP   -1  /* bad crypto setup */
+#define CRYPTO_ERROR_NODEVICE   -2 /* no device with vid:pid */
+#define CRYPTO_ERROR_BADENDP    -3 /* device doesn't have the required endpoints */
+#define CRYPTO_ERROR_CLAIMFAIL  -4 /* device interface claim error */
+#define CRYPTO_ERROR_DEVREJECT  -5 /* device rejected cypto operation */
+#define CRYPTO_ERROR_DEVSILENT  -6 /* device did not notify completion */
+#define CRYPTO_ERROR_DEVERR     -7 /* device did something wrong (like return too small buffer) */
+#define CRYPTO_NUM_ERRORS       8
+/* return 0 on success, <0 on error */
+int crypto_apply(
+    byte *in_data, /* Input data */
+    byte *out_data, /* Output data (or NULL) */
+    int nr_blocks, /* Number of blocks (one block=16 bytes) */
+    byte iv[16], /* IV */
+    byte (*out_cbc_mac)[16], /* CBC-MAC of the result (or NULL) */
+    int encrypt);
+
+/* all-in-one function */
+struct crypto_key_t
+{
+    enum crypto_method_t method;
+    union
+    {
+        byte key[16];
+        uint32_t vid_pid;
+        byte param[0];
+    }u;
+};
+
+int crypto_cbc(
+    byte *in_data, /* Input data */
+    byte *out_data, /* Output data (or NULL) */
+    int nr_blocks, /* Number of blocks (one block=16 bytes) */
+    struct crypto_key_t *key, /* Key */
+    byte iv[16], /* IV */
+    byte (*out_cbc_mac)[16], /* CBC-MAC of the result (or NULL) */
+    int encrypt);
+
+/* crc.c */
+uint32_t crc(byte *data, int size);
+uint32_t crc_continue(uint32_t previous_crc, byte *data, int size);
+
+/* sha1.c */
+struct sha_1_params_t
+{
+    uint32_t hash[5];
+    uint64_t buffer_nr_bits;
+    uint32_t w[80];
+};
+
+void sha_1_init(struct sha_1_params_t *params);
+void sha_1_block(struct sha_1_params_t *params, uint32_t cur_hash[5], byte *data);
+void sha_1_update(struct sha_1_params_t *params, byte *buffer, int size);
+void sha_1_finish(struct sha_1_params_t *params);
+void sha_1_output(struct sha_1_params_t *params, byte *out);
+
+#endif /* __CRYPTO_H__ */