Mercurial > trustbridge > nss-cmake-static

annotate nss/lib/freebl/intel-gcm.h @ 4:b513267f632f tip

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Build DBM module
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 05 Aug 2014 18:58:03 +0200
parents 1e5118fa0cb1
children
rev   line source
0
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1 /******************************************************************************/
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2 /* LICENSE: */
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3 /* This submission to NSS is to be made available under the terms of the */
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4 /* Mozilla Public License, v. 2.0. You can obtain one at http: */
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5 /* //mozilla.org/MPL/2.0/. */
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6 /******************************************************************************/
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7 /* Copyright(c) 2013, Intel Corp. */
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8 /******************************************************************************/
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9 /* Reference: */
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10 /* [1] Shay Gueron, Michael E. Kounavis: Intel® Carry-Less Multiplication */
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11 /* Instruction and its Usage for Computing the GCM Mode (Rev. 2.01) */
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12 /* http://software.intel.com/sites/default/files/article/165685/clmul-wp-r*/
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13 /*ev-2.01-2012-09-21.pdf */
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14 /* [2] S. Gueron, M. E. Kounavis: Efficient Implementation of the Galois */
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15 /* Counter Mode Using a Carry-less Multiplier and a Fast Reduction */
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16 /* Algorithm. Information Processing Letters 110: 549–553 (2010). */
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17 /* [3] S. Gueron: AES Performance on the 2nd Generation Intel® Core™ Processor*/
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18 /* Family (to be posted) (2012). */
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19 /* [4] S. Gueron: Fast GHASH computations for speeding up AES-GCM (to be */
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20 /* published) (2012). */
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21
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22 #ifndef INTEL_GCM_H
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23 #define INTEL_GCM_H 1
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24
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25 #include "blapii.h"
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26
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27 typedef struct intel_AES_GCMContextStr intel_AES_GCMContext;
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28
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29 intel_AES_GCMContext *intel_AES_GCM_CreateContext(void *context, freeblCipherFunc cipher,
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30 const unsigned char *params, unsigned int blocksize);
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31
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32 void intel_AES_GCM_DestroyContext(intel_AES_GCMContext *gcm, PRBool freeit);
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33
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34 SECStatus intel_AES_GCM_EncryptUpdate(intel_AES_GCMContext *gcm, unsigned char *outbuf,
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35 unsigned int *outlen, unsigned int maxout,
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36 const unsigned char *inbuf, unsigned int inlen,
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37 unsigned int blocksize);
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38
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39 SECStatus intel_AES_GCM_DecryptUpdate(intel_AES_GCMContext *gcm, unsigned char *outbuf,
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40 unsigned int *outlen, unsigned int maxout,
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41 const unsigned char *inbuf, unsigned int inlen,
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42 unsigned int blocksize);
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43
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44 /* Prorotypes of functions in the assembler file for fast AES-GCM, using
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45 Intel AES-NI and CLMUL-NI, as described in [1]
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46 [1] Shay Gueron, Michael E. Kounavis: Intel® Carry-Less Multiplication
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47 Instruction and its Usage for Computing the GCM Mode */
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48
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49 /* Prepares the constants used in the aggregated reduction method */
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50 void intel_aes_gcmINIT(unsigned char Htbl[16*16],
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51 unsigned char *KS,
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52 int NR);
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53
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54 /* Produces the final GHASH value */
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55 void intel_aes_gcmTAG(unsigned char Htbl[16*16],
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56 unsigned char *Tp,
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57 unsigned long Mlen,
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58 unsigned long Alen,
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59 unsigned char* X0,
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60 unsigned char* TAG);
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61
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62 /* Hashes the Additional Authenticated Data, should be used before enc/dec.
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63 Operates on whole blocks only. Partial blocks should be padded externally. */
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64 void intel_aes_gcmAAD(unsigned char Htbl[16*16],
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65 unsigned char *AAD,
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66 unsigned long Alen,
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67 unsigned char *Tp);
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68
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69 /* Encrypts and hashes the Plaintext.
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70 Operates on any length of data, however partial block should only be encrypted
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71 at the last call, otherwise the result will be incorrect. */
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72 void intel_aes_gcmENC(const unsigned char* PT,
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73 unsigned char* CT,
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74 void *Gctx,
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75 unsigned long len);
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76
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77 /* Similar to ENC, but decrypts the Ciphertext. */
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78 void intel_aes_gcmDEC(const unsigned char* CT,
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79 unsigned char* PT,
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80 void *Gctx,
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81 unsigned long len);
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82
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83 #endif
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