[thirdparty/openssl.git] / providers / implementations / ciphers / cipher_aes_cts.inc

/*
 * Copyright 2020 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
 */

/* Dispatch functions for AES CBC CTS ciphers */

#include "cipher_aes_cts.h"
#include "prov/providercommonerr.h"

static OSSL_FUNC_cipher_get_ctx_params_fn aes_cbc_cts_get_ctx_params;
static OSSL_FUNC_cipher_set_ctx_params_fn aes_cbc_cts_set_ctx_params;
static OSSL_FUNC_cipher_gettable_ctx_params_fn aes_cbc_cts_gettable_ctx_params;
static OSSL_FUNC_cipher_settable_ctx_params_fn aes_cbc_cts_settable_ctx_params;

CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_START(aes_cbc_cts)
OSSL_PARAM_utf8_string(OSSL_CIPHER_PARAM_CTS_MODE, NULL, 0),
CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_END(aes_cbc_cts)

static int aes_cbc_cts_get_ctx_params(void *vctx, OSSL_PARAM params[])
{
    PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
    OSSL_PARAM *p;

    p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_CTS_MODE);
    if (p != NULL) {
        const char *name = aes_cbc_cts_mode_id2name(ctx->cts_mode);

        if (name == NULL || !OSSL_PARAM_set_utf8_string(p, name)) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
            return 0;
        }
    }
    return cipher_generic_get_ctx_params(vctx, params);
}

CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_START(aes_cbc_cts)
OSSL_PARAM_utf8_string(OSSL_CIPHER_PARAM_CTS_MODE, NULL, 0),
CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_END(aes_cbc_cts)

static int aes_cbc_cts_set_ctx_params(void *vctx, const OSSL_PARAM params[])
{
    PROV_CIPHER_CTX *ctx = (PROV_CIPHER_CTX *)vctx;
    const OSSL_PARAM *p;
    int id;

    p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_CTS_MODE);
    if (p != NULL) {
        if (p->data_type != OSSL_PARAM_UTF8_STRING)
            goto err;
        id = aes_cbc_cts_mode_name2id(p->data);
        if (id < 0)
            goto err;

        ctx->cts_mode = (unsigned int)id;
    }
    return cipher_generic_set_ctx_params(vctx, params);
err:
    ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
    return 0;
}

/* NOTE: The underlying block cipher is AES CBC so we reuse most of the code */
#define IMPLEMENT_cts_cipher(alg, UCALG, lcmode, UCMODE, flags, kbits,         \
                             blkbits, ivbits, typ)                             \
static OSSL_FUNC_cipher_get_params_fn alg##_##kbits##_##lcmode##_get_params;   \
static int alg##_cts_##kbits##_##lcmode##_get_params(OSSL_PARAM params[])      \
{                                                                              \
    return cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, flags,  \
                                     kbits, blkbits, ivbits);                  \
}                                                                              \
const OSSL_DISPATCH ossl_##alg##kbits##lcmode##_cts_functions[] = {            \
    { OSSL_FUNC_CIPHER_NEWCTX,                                                 \
      (void (*)(void)) alg##_##kbits##_##lcmode##_newctx },                    \
    { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void)) alg##_freectx },              \
    { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void)) alg##_dupctx },                \
    { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))cipher_generic_einit },   \
    { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))cipher_generic_dinit },   \
    { OSSL_FUNC_CIPHER_UPDATE,                                                 \
      (void (*)(void)) alg##_##lcmode##_cts_block_update },                    \
    { OSSL_FUNC_CIPHER_FINAL,                                                  \
      (void (*)(void)) alg##_##lcmode##_cts_block_final },                     \
    { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))cipher_generic_cipher },        \
    { OSSL_FUNC_CIPHER_GET_PARAMS,                                             \
      (void (*)(void)) alg##_cts_##kbits##_##lcmode##_get_params },            \
    { OSSL_FUNC_CIPHER_GETTABLE_PARAMS,                                        \
      (void (*)(void))cipher_generic_gettable_params },                        \
    { OSSL_FUNC_CIPHER_GET_CTX_PARAMS,                                         \
      (void (*)(void))aes_cbc_cts_get_ctx_params },                            \
    { OSSL_FUNC_CIPHER_SET_CTX_PARAMS,                                         \
      (void (*)(void))aes_cbc_cts_set_ctx_params },                            \
    { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,                                    \
      (void (*)(void))aes_cbc_cts_gettable_ctx_params },                       \
    { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,                                    \
     (void (*)(void))aes_cbc_cts_settable_ctx_params },                        \
    { 0, NULL }                                                                \
};

/* ossl_aes256cbc_cts_functions */
IMPLEMENT_cts_cipher(aes, AES, cbc, CBC, EVP_CIPH_FLAG_CTS, 256, 128, 128, block)
/* ossl_aes192cbc_cts_functions */
IMPLEMENT_cts_cipher(aes, AES, cbc, CBC, EVP_CIPH_FLAG_CTS, 192, 128, 128, block)
/* ossl_aes128cbc_cts_functions */
IMPLEMENT_cts_cipher(aes, AES, cbc, CBC, EVP_CIPH_FLAG_CTS, 128, 128, 128, block)
Commit	Line	Data
7cc355c2 SL	1	/*
	2	* Copyright 2020 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	/* Dispatch functions for AES CBC CTS ciphers */
	11
	12	#include "cipher_aes_cts.h"
	13	#include "prov/providercommonerr.h"
	14
	15	static OSSL_FUNC_cipher_get_ctx_params_fn aes_cbc_cts_get_ctx_params;
	16	static OSSL_FUNC_cipher_set_ctx_params_fn aes_cbc_cts_set_ctx_params;
	17	static OSSL_FUNC_cipher_gettable_ctx_params_fn aes_cbc_cts_gettable_ctx_params;
	18	static OSSL_FUNC_cipher_settable_ctx_params_fn aes_cbc_cts_settable_ctx_params;
	19
	20	CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_START(aes_cbc_cts)
	21	OSSL_PARAM_utf8_string(OSSL_CIPHER_PARAM_CTS_MODE, NULL, 0),
	22	CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_END(aes_cbc_cts)
	23
	24	static int aes_cbc_cts_get_ctx_params(void *vctx, OSSL_PARAM params[])
	25	{
	26	PROV_CIPHER_CTX ctx = (PROV_CIPHER_CTX )vctx;
	27	OSSL_PARAM *p;
	28
	29	p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_CTS_MODE);
	30	if (p != NULL) {
	31	const char *name = aes_cbc_cts_mode_id2name(ctx->cts_mode);
	32
	33	if (name == NULL \|\| !OSSL_PARAM_set_utf8_string(p, name)) {
	34	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
	35	return 0;
	36	}
	37	}
	38	return cipher_generic_get_ctx_params(vctx, params);
	39	}
	40
	41	CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_START(aes_cbc_cts)
	42	OSSL_PARAM_utf8_string(OSSL_CIPHER_PARAM_CTS_MODE, NULL, 0),
	43	CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_END(aes_cbc_cts)
	44
	45	static int aes_cbc_cts_set_ctx_params(void *vctx, const OSSL_PARAM params[])
	46	{
	47	PROV_CIPHER_CTX ctx = (PROV_CIPHER_CTX )vctx;
	48	const OSSL_PARAM *p;
	49	int id;
	50
	51	p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_CTS_MODE);
	52	if (p != NULL) {
	53	if (p->data_type != OSSL_PARAM_UTF8_STRING)
	54	goto err;
	55	id = aes_cbc_cts_mode_name2id(p->data);
	56	if (id < 0)
	57	goto err;
	58
	59	ctx->cts_mode = (unsigned int)id;
	60	}
	61	return cipher_generic_set_ctx_params(vctx, params);
	62	err:
	63	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
	64	return 0;
65	}
66
67	/* NOTE: The underlying block cipher is AES CBC so we reuse most of the code */
68	#define IMPLEMENT_cts_cipher(alg, UCALG, lcmode, UCMODE, flags, kbits, \
69	blkbits, ivbits, typ) \
70	static OSSL_FUNC_cipher_get_params_fn alg##_##kbits##_##lcmode##_get_params; \
71	static int alg##_cts_##kbits##_##lcmode##_get_params(OSSL_PARAM params[]) \
72	{ \
73	return cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, flags, \
74	kbits, blkbits, ivbits); \
75	} \
1be63951	76	const OSSL_DISPATCH ossl_##alg##kbits##lcmode##_cts_functions[] = { \
7cc355c2 SL	77	{ OSSL_FUNC_CIPHER_NEWCTX, \
	78	(void (*)(void)) alg##_##kbits##_##lcmode##_newctx }, \
	79	{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void)) alg##_freectx }, \
	80	{ OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void)) alg##_dupctx }, \
	81	{ OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))cipher_generic_einit }, \
	82	{ OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))cipher_generic_dinit }, \
	83	{ OSSL_FUNC_CIPHER_UPDATE, \
	84	(void (*)(void)) alg##_##lcmode##_cts_block_update }, \
	85	{ OSSL_FUNC_CIPHER_FINAL, \
	86	(void (*)(void)) alg##_##lcmode##_cts_block_final }, \
	87	{ OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))cipher_generic_cipher }, \
	88	{ OSSL_FUNC_CIPHER_GET_PARAMS, \
	89	(void (*)(void)) alg##_cts_##kbits##_##lcmode##_get_params }, \
	90	{ OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
	91	(void (*)(void))cipher_generic_gettable_params }, \
	92	{ OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \
	93	(void (*)(void))aes_cbc_cts_get_ctx_params }, \
	94	{ OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
	95	(void (*)(void))aes_cbc_cts_set_ctx_params }, \
	96	{ OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
	97	(void (*)(void))aes_cbc_cts_gettable_ctx_params }, \
	98	{ OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
	99	(void (*)(void))aes_cbc_cts_settable_ctx_params }, \
	100	{ 0, NULL } \
	101	};
	102
1be63951	103	/* ossl_aes256cbc_cts_functions */
7cc355c2	104	IMPLEMENT_cts_cipher(aes, AES, cbc, CBC, EVP_CIPH_FLAG_CTS, 256, 128, 128, block)
1be63951	105	/* ossl_aes192cbc_cts_functions */
7cc355c2	106	IMPLEMENT_cts_cipher(aes, AES, cbc, CBC, EVP_CIPH_FLAG_CTS, 192, 128, 128, block)
1be63951	107	/* ossl_aes128cbc_cts_functions */
7cc355c2	108	IMPLEMENT_cts_cipher(aes, AES, cbc, CBC, EVP_CIPH_FLAG_CTS, 128, 128, 128, block)