providers/implementations/ciphers/cipher_aes_gcm.h

   1 /*
   2  * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <openssl/aes.h>
  11 #include "prov/ciphercommon.h"
  12 #include "prov/ciphercommon_gcm.h"
  13
  14 typedef struct prov_aes_gcm_ctx_st {
  15     PROV_GCM_CTX base;          /* must be first entry in struct */
  16     union {
  17         OSSL_UNION_ALIGN;
  18         AES_KEY ks;
  19     } ks;                       /* AES key schedule to use */
  20
  21     /* Platform specific data */
  22     union {
  23         int dummy;
  24 #if defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
  25         struct {
  26             union {
  27                 OSSL_UNION_ALIGN;
  28                 S390X_KMA_PARAMS kma;
  29             } param;
  30             unsigned int fc;
  31             unsigned char ares[16];
  32             unsigned char mres[16];
  33             unsigned char kres[16];
  34             int areslen;
  35             int mreslen;
  36             int kreslen;
  37             int res;
  38         } s390x;
  39 #endif /* defined(OPENSSL_CPUID_OBJ) && defined(__s390__) */
  40     } plat;
  41 } PROV_AES_GCM_CTX;
  42
  43 const PROV_GCM_HW *PROV_AES_HW_gcm(size_t keybits);