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); 104