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/include/crypto/vmac.h

https://bitbucket.org/thekraven/iscream_thunderc-2.6.35
C++ Header | 61 lines | 21 code | 7 blank | 33 comment | 0 complexity | 7dc5292aab9cbd761116ea034eab7daf MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0 
    

  1. /*
    2. 

  2.  * Modified to interface to the Linux kernel
    3. 

  3.  * Copyright (c) 2009, Intel Corporation.
    4. 

  4.  *
    5. 

  5.  * This program is free software; you can redistribute it and/or modify it
    6. 

  6.  * under the terms and conditions of the GNU General Public License,
    7. 

  7.  * version 2, as published by the Free Software Foundation.
    8. 

  8.  *
    9. 

  9.  * This program is distributed in the hope it will be useful, but WITHOUT
    10. 

  10.  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11. 

  11.  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
    12. 

  12.  * more details.
    13. 

  13.  *
    14. 

  14.  * You should have received a copy of the GNU General Public License along with
    15. 

  15.  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
    16. 

  16.  * Place - Suite 330, Boston, MA 02111-1307 USA.
    17. 

  17.  */
    18. 

  18. 

  19. #ifndef __CRYPTO_VMAC_H
    20. 

  20. #define __CRYPTO_VMAC_H
    21. 

  21. 

  22. /* --------------------------------------------------------------------------
    23. 

  23.  * VMAC and VHASH Implementation by Ted Krovetz (tdk@acm.org) and Wei Dai.
    24. 

  24.  * This implementation is herby placed in the public domain.
    25. 

  25.  * The authors offers no warranty. Use at your own risk.
    26. 

  26.  * Please send bug reports to the authors.
    27. 

  27.  * Last modified: 17 APR 08, 1700 PDT
    28. 

  28.  * ----------------------------------------------------------------------- */
    29. 

  29. 

  30. /*
    31. 

  31.  * User definable settings.
    32. 

  32.  */
    33. 

  33. #define VMAC_TAG_LEN	64
    34. 

  34. #define VMAC_KEY_SIZE	128/* Must be 128, 192 or 256			*/
    35. 

  35. #define VMAC_KEY_LEN	(VMAC_KEY_SIZE/8)
    36. 

  36. #define VMAC_NHBYTES	128/* Must 2^i for any 3 < i < 13 Standard = 128*/
    37. 

  37. 

  38. /*
    39. 

  39.  * This implementation uses u32 and u64 as names for unsigned 32-
    40. 

  40.  * and 64-bit integer types. These are defined in C99 stdint.h. The
    41. 

  41.  * following may need adaptation if you are not running a C99 or
    42. 

  42.  * Microsoft C environment.
    43. 

  43.  */
    44. 

  44. struct vmac_ctx {
    45. 

  45. 	u64 nhkey[(VMAC_NHBYTES/8)+2*(VMAC_TAG_LEN/64-1)];
    46. 

  46. 	u64 polykey[2*VMAC_TAG_LEN/64];
    47. 

  47. 	u64 l3key[2*VMAC_TAG_LEN/64];
    48. 

  48. 	u64 polytmp[2*VMAC_TAG_LEN/64];
    49. 

  49. 	u64 cached_nonce[2];
    50. 

  50. 	u64 cached_aes[2];
    51. 

  51. 	int first_block_processed;
    52. 

  52. };
    53. 

  53. 

  54. typedef u64 vmac_t;
    55. 

  55. 

  56. struct vmac_ctx_t {
    57. 

  57. 	struct crypto_cipher *child;
    58. 

  58. 	struct vmac_ctx __vmac_ctx;
    59. 

  59. };
    60. 

  60. 

  61. #endif /* __CRYPTO_VMAC_H */
    62. 

  62.