ceph/src/crypto/isa-l/isal_crypto_accel.cc

   1 /*
   2  * Ceph - scalable distributed file system
   3  *
   4  * Copyright (C) 2016 Mirantis, Inc.
   5  *
   6  * Author: Adam Kupczyk <akupczyk@mirantis.com>
   7  *
   8  *  This library is free software; you can redistribute it and/or
   9  *  modify it under the terms of the GNU Lesser General Public
  10  *  License as published by the Free Software Foundation; either
  11  *  version 2.1 of the License, or (at your option) any later version.
  12  *
  13  */
  14
  15 #include "crypto/isa-l/isal_crypto_accel.h"
  16
  17 #include "crypto/isa-l/isa-l_crypto/include/aes_cbc.h"
  18
  19 bool ISALCryptoAccel::cbc_encrypt(unsigned char* out, const unsigned char* in, size_t size,
  20                              const unsigned char (&iv)[AES_256_IVSIZE],
  21                              const unsigned char (&key)[AES_256_KEYSIZE])
  22 {
  23   if ((size % AES_256_IVSIZE) != 0) {
  24     return false;
  25   }
  26   alignas(16) struct cbc_key_data keys_blk;
  27   aes_cbc_precomp(const_cast<unsigned char*>(&key[0]), AES_256_KEYSIZE, &keys_blk);
  28   aes_cbc_enc_256(const_cast<unsigned char*>(in),
  29                   const_cast<unsigned char*>(&iv[0]), keys_blk.enc_keys, out, size);
  30   return true;
  31 }
  32 bool ISALCryptoAccel::cbc_decrypt(unsigned char* out, const unsigned char* in, size_t size,
  33                              const unsigned char (&iv)[AES_256_IVSIZE],
  34                              const unsigned char (&key)[AES_256_KEYSIZE])
  35 {
  36   if ((size % AES_256_IVSIZE) != 0) {
  37     return false;
  38   }
  39   alignas(16) struct cbc_key_data keys_blk;
  40   aes_cbc_precomp(const_cast<unsigned char*>(&key[0]), AES_256_KEYSIZE, &keys_blk);
  41   aes_cbc_dec_256(const_cast<unsigned char*>(in), const_cast<unsigned char*>(&iv[0]), keys_blk.dec_keys, out, size);
  42   return true;
  43 }