providers/implementations/ciphers/cipher_tdes.h

   1 /*
   2  * Copyright 2019-2021 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/des.h>
  11 #include <openssl/core_dispatch.h>
  12 #include "crypto/des_platform.h"
  13
  14 #define DES_BLOCK_SIZE 8
  15 #define TDES_IVLEN 8
  16 #define TDES_FLAGS PROV_CIPHER_FLAG_RAND_KEY
  17
  18 typedef struct prov_tdes_ctx_st {
  19     PROV_CIPHER_CTX base;      /* Must be first */
  20     union {
  21         OSSL_UNION_ALIGN;
  22         DES_key_schedule ks[3];
  23     } tks;
  24     union {
  25         void (*cbc) (const void *, void *, size_t,
  26                      const DES_key_schedule *, unsigned char *);
  27     } tstream;
  28
  29 } PROV_TDES_CTX;
  30
  31 #define IMPLEMENT_tdes_cipher(type, UCTYPE, lcmode, UCMODE, flags,             \
  32                               kbits, blkbits, ivbits, block)                   \
  33 static OSSL_FUNC_cipher_newctx_fn tdes_##type##_##lcmode##_newctx;             \
  34 static void *tdes_##type##_##lcmode##_newctx(void *provctx)                    \
  35 {                                                                              \
  36     return ossl_tdes_newctx(provctx, EVP_CIPH_##UCMODE##_MODE, kbits, blkbits, \
  37                        ivbits, flags,                                          \
  38                        ossl_prov_cipher_hw_tdes_##type##_##lcmode());          \
  39 }                                                                              \
  40 static OSSL_FUNC_cipher_get_params_fn tdes_##type##_##lcmode##_get_params;     \
  41 static int tdes_##type##_##lcmode##_get_params(OSSL_PARAM params[])            \
  42 {                                                                              \
  43     return ossl_cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE,    \
  44                                           flags, kbits, blkbits, ivbits);      \
  45 }                                                                              \
  46 const OSSL_DISPATCH ossl_tdes_##type##_##lcmode##_functions[] = {              \
  47     { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))ossl_tdes_einit },        \
  48     { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))ossl_tdes_dinit },        \
  49     { OSSL_FUNC_CIPHER_UPDATE,                                                 \
  50       (void (*)(void))ossl_cipher_generic_##block##_update },                  \
  51     { OSSL_FUNC_CIPHER_FINAL,                                                  \
  52       (void (*)(void))ossl_cipher_generic_##block##_final },                   \
  53     { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))ossl_cipher_generic_cipher },   \
  54     { OSSL_FUNC_CIPHER_NEWCTX,                                                 \
  55       (void (*)(void))tdes_##type##_##lcmode##_newctx },                       \
  56     { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))ossl_tdes_dupctx },             \
  57     { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))ossl_tdes_freectx },           \
  58     { OSSL_FUNC_CIPHER_GET_PARAMS,                                             \
  59       (void (*)(void))tdes_##type##_##lcmode##_get_params },                   \
  60     { OSSL_FUNC_CIPHER_GETTABLE_PARAMS,                                        \
  61       (void (*)(void))ossl_cipher_generic_gettable_params },                   \
  62     { OSSL_FUNC_CIPHER_GET_CTX_PARAMS,                                         \
  63       (void (*)(void))ossl_tdes_get_ctx_params },                              \
  64     { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,                                    \
  65       (void (*)(void))ossl_tdes_gettable_ctx_params },                         \
  66     { OSSL_FUNC_CIPHER_SET_CTX_PARAMS,                                         \
  67      (void (*)(void))ossl_cipher_generic_set_ctx_params },                     \
  68     { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,                                    \
  69      (void (*)(void))ossl_cipher_generic_settable_ctx_params },                \
  70     { 0, NULL }                                                                \
  71 }
  72
  73 void *ossl_tdes_newctx(void *provctx, int mode, size_t kbits, size_t blkbits,
  74                        size_t ivbits, uint64_t flags, const PROV_CIPHER_HW *hw);
  75 OSSL_FUNC_cipher_dupctx_fn ossl_tdes_dupctx;
  76 OSSL_FUNC_cipher_freectx_fn ossl_tdes_freectx;
  77 OSSL_FUNC_cipher_encrypt_init_fn ossl_tdes_einit;
  78 OSSL_FUNC_cipher_decrypt_init_fn ossl_tdes_dinit;
  79 OSSL_FUNC_cipher_get_ctx_params_fn ossl_tdes_get_ctx_params;
  80 OSSL_FUNC_cipher_gettable_ctx_params_fn ossl_tdes_gettable_ctx_params;
  81
  82 #define PROV_CIPHER_HW_tdes_mode(type, mode)                                   \
  83 static const PROV_CIPHER_HW type##_##mode = {                                  \
  84     ossl_cipher_hw_tdes_##type##_initkey,                                      \
  85     ossl_cipher_hw_tdes_##mode,                                                \
  86     ossl_cipher_hw_tdes_copyctx                                                \
  87 };                                                                             \
  88 const PROV_CIPHER_HW *ossl_prov_cipher_hw_tdes_##type##_##mode(void)           \
  89 {                                                                              \
  90     return &type##_##mode;                                                     \
  91 }
  92
  93 int ossl_cipher_hw_tdes_ede3_initkey(PROV_CIPHER_CTX *ctx,
  94                                      const unsigned char *key, size_t keylen);
  95 void ossl_cipher_hw_tdes_copyctx(PROV_CIPHER_CTX *dst,
  96                                  const PROV_CIPHER_CTX *src);
  97 int ossl_cipher_hw_tdes_cbc(PROV_CIPHER_CTX *ctx, unsigned char *out,
  98                             const unsigned char *in, size_t inl);
  99 int ossl_cipher_hw_tdes_ecb(PROV_CIPHER_CTX *ctx, unsigned char *out,
 100                             const unsigned char *in, size_t len);
 101
 102 const PROV_CIPHER_HW *ossl_prov_cipher_hw_tdes_ede3_cbc(void);
 103 const PROV_CIPHER_HW *ossl_prov_cipher_hw_tdes_ede3_ecb(void);