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9934c8faef29, 3c3b381c4865, 5a67f6beee9a, 1b1eb6d77728, a8b668fd72f7, bug962760, bug743700, bug857304, bug972653, bug972450, bug971358, bug903885, bug977073, bug976111, bug949939, bug947653, bug947572, bug903885, bug979106, bug966596, bug979004, bug979752, bug980848, bug938369, bug981170, bug668130, bug974693, bug975056, bug979132, bug370717, bug979070, bug985070, bug900067, bug977673, bug519255, bug989558, bug557299, bug987263, bug369802, a751a5146718, bug992343, bug952572, bug979703, bug994883, bug994869, bug993489, bug984608, bug977869, bug667371, bug672828, bug793347, bug977869
84 lines
4.0 KiB
C
84 lines
4.0 KiB
C
/******************************************************************************/
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/* LICENSE: */
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/* This submission to NSS is to be made available under the terms of the */
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/* Mozilla Public License, v. 2.0. You can obtain one at http: */
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/* //mozilla.org/MPL/2.0/. */
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/******************************************************************************/
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/* Copyright(c) 2013, Intel Corp. */
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/******************************************************************************/
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/* Reference: */
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/* [1] Shay Gueron, Michael E. Kounavis: Intel® Carry-Less Multiplication */
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/* Instruction and its Usage for Computing the GCM Mode (Rev. 2.01) */
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/* http://software.intel.com/sites/default/files/article/165685/clmul-wp-r*/
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/*ev-2.01-2012-09-21.pdf */
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/* [2] S. Gueron, M. E. Kounavis: Efficient Implementation of the Galois */
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/* Counter Mode Using a Carry-less Multiplier and a Fast Reduction */
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/* Algorithm. Information Processing Letters 110: 549–553 (2010). */
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/* [3] S. Gueron: AES Performance on the 2nd Generation Intel® Core™ Processor*/
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/* Family (to be posted) (2012). */
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/* [4] S. Gueron: Fast GHASH computations for speeding up AES-GCM (to be */
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/* published) (2012). */
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#ifndef INTEL_GCM_H
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#define INTEL_GCM_H 1
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#include "blapii.h"
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typedef struct intel_AES_GCMContextStr intel_AES_GCMContext;
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intel_AES_GCMContext *intel_AES_GCM_CreateContext(void *context, freeblCipherFunc cipher,
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const unsigned char *params, unsigned int blocksize);
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void intel_AES_GCM_DestroyContext(intel_AES_GCMContext *gcm, PRBool freeit);
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SECStatus intel_AES_GCM_EncryptUpdate(intel_AES_GCMContext *gcm, unsigned char *outbuf,
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unsigned int *outlen, unsigned int maxout,
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const unsigned char *inbuf, unsigned int inlen,
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unsigned int blocksize);
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SECStatus intel_AES_GCM_DecryptUpdate(intel_AES_GCMContext *gcm, unsigned char *outbuf,
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unsigned int *outlen, unsigned int maxout,
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const unsigned char *inbuf, unsigned int inlen,
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unsigned int blocksize);
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/* Prorotypes of functions in the assembler file for fast AES-GCM, using
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Intel AES-NI and CLMUL-NI, as described in [1]
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[1] Shay Gueron, Michael E. Kounavis: Intel® Carry-Less Multiplication
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Instruction and its Usage for Computing the GCM Mode */
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/* Prepares the constants used in the aggregated reduction method */
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void intel_aes_gcmINIT(unsigned char Htbl[16*16],
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unsigned char *KS,
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int NR);
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/* Produces the final GHASH value */
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void intel_aes_gcmTAG(unsigned char Htbl[16*16],
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unsigned char *Tp,
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unsigned long Mlen,
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unsigned long Alen,
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unsigned char* X0,
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unsigned char* TAG);
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/* Hashes the Additional Authenticated Data, should be used before enc/dec.
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Operates on whole blocks only. Partial blocks should be padded externally. */
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void intel_aes_gcmAAD(unsigned char Htbl[16*16],
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unsigned char *AAD,
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unsigned long Alen,
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unsigned char *Tp);
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/* Encrypts and hashes the Plaintext.
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Operates on any length of data, however partial block should only be encrypted
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at the last call, otherwise the result will be incorrect. */
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void intel_aes_gcmENC(const unsigned char* PT,
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unsigned char* CT,
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void *Gctx,
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unsigned long len);
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/* Similar to ENC, but decrypts the Ciphertext. */
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void intel_aes_gcmDEC(const unsigned char* CT,
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unsigned char* PT,
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void *Gctx,
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unsigned long len);
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#endif
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