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/*
* Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/des.h>
#include <openssl/core_numbers.h>
#define DES_BLOCK_SIZE 8
#define TDES_IVLEN 8
/* TODO(3.0) Figure out what flags need to be here */
#define TDES_FLAGS (EVP_CIPH_RAND_KEY)
typedef struct prov_tdes_ctx_st {
PROV_CIPHER_CTX base; /* Must be first */
union {
OSSL_UNION_ALIGN;
DES_key_schedule ks[3];
} tks;
union {
void (*cbc) (const void *, void *, size_t,
const DES_key_schedule *, unsigned char *);
} tstream;
} PROV_TDES_CTX;
#define IMPLEMENT_tdes_cipher(type, UCTYPE, lcmode, UCMODE, flags, \
kbits, blkbits, ivbits, block) \
static OSSL_OP_cipher_newctx_fn tdes_##type##_##lcmode##_newctx; \
static void *tdes_##type##_##lcmode##_newctx(void *provctx) \
{ \
return tdes_newctx(provctx, EVP_CIPH_##UCMODE##_MODE, kbits, blkbits, \
ivbits, flags, PROV_CIPHER_HW_tdes_##type##_##lcmode());\
} \
static OSSL_OP_cipher_get_params_fn tdes_##type##_##lcmode##_get_params; \
static int tdes_##type##_##lcmode##_get_params(OSSL_PARAM params[]) \
{ \
return cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, flags, \
kbits, blkbits, ivbits); \
} \
const OSSL_DISPATCH tdes_##type##_##lcmode##_functions[] = { \
{ OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))tdes_einit }, \
{ OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))tdes_dinit }, \
{ OSSL_FUNC_CIPHER_UPDATE, \
(void (*)(void))cipher_generic_##block##_update }, \
{ OSSL_FUNC_CIPHER_FINAL, (void (*)(void))cipher_generic_##block##_final },\
{ OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))cipher_generic_cipher }, \
{ OSSL_FUNC_CIPHER_NEWCTX, \
(void (*)(void))tdes_##type##_##lcmode##_newctx }, \
{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))tdes_freectx }, \
{ OSSL_FUNC_CIPHER_GET_PARAMS, \
(void (*)(void))tdes_##type##_##lcmode##_get_params }, \
{ OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
(void (*)(void))cipher_generic_gettable_params }, \
{ OSSL_FUNC_CIPHER_GET_CTX_PARAMS, (void (*)(void))tdes_get_ctx_params }, \
{ OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
(void (*)(void))tdes_gettable_ctx_params }, \
{ OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
(void (*)(void))cipher_generic_set_ctx_params }, \
{ OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
(void (*)(void))cipher_generic_settable_ctx_params }, \
{ 0, NULL } \
}
void *tdes_newctx(void *provctx, int mode, size_t kbits, size_t blkbits,
size_t ivbits, uint64_t flags, const PROV_CIPHER_HW *hw);
OSSL_OP_cipher_freectx_fn tdes_freectx;
OSSL_OP_cipher_encrypt_init_fn tdes_einit;
OSSL_OP_cipher_decrypt_init_fn tdes_dinit;
OSSL_OP_cipher_get_ctx_params_fn tdes_get_ctx_params;
OSSL_OP_cipher_gettable_ctx_params_fn tdes_gettable_ctx_params;
#define PROV_CIPHER_HW_tdes_mode(type, mode) \
static const PROV_CIPHER_HW type##_##mode = { \
cipher_hw_tdes_##type##_initkey, \
cipher_hw_tdes_##mode \
}; \
const PROV_CIPHER_HW *PROV_CIPHER_HW_tdes_##type##_##mode(void) \
{ \
return &type##_##mode; \
}
int cipher_hw_tdes_ede3_initkey(PROV_CIPHER_CTX *ctx, const unsigned char *key,
size_t keylen);
int cipher_hw_tdes_cbc(PROV_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
int cipher_hw_tdes_ecb(PROV_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len);
const PROV_CIPHER_HW *PROV_CIPHER_HW_tdes_ede3_cbc(void);
const PROV_CIPHER_HW *PROV_CIPHER_HW_tdes_ede3_ecb(void);
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