[thirdparty/openssl.git] / providers / implementations / ciphers / cipher_rc2.c

/*
 * Copyright 2019-2021 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 RC2 cipher modes ecb, cbc, ofb, cfb */

/*
 * RC2 low level APIs are deprecated for public use, but still ok for internal
 * use.
 */
#include "internal/deprecated.h"

#include <openssl/proverr.h>
#include "cipher_rc2.h"
#include "prov/implementations.h"
#include "prov/providercommon.h"

#define RC2_40_MAGIC    0xa0
#define RC2_64_MAGIC    0x78
#define RC2_128_MAGIC   0x3a
#define RC2_FLAGS       PROV_CIPHER_FLAG_VARIABLE_LENGTH

static OSSL_FUNC_cipher_encrypt_init_fn rc2_einit;
static OSSL_FUNC_cipher_decrypt_init_fn rc2_dinit;
static OSSL_FUNC_cipher_freectx_fn rc2_freectx;
static OSSL_FUNC_cipher_dupctx_fn rc2_dupctx;
static OSSL_FUNC_cipher_gettable_ctx_params_fn rc2_gettable_ctx_params;
static OSSL_FUNC_cipher_settable_ctx_params_fn rc2_settable_ctx_params;
static OSSL_FUNC_cipher_set_ctx_params_fn rc2_set_ctx_params;

static void rc2_freectx(void *vctx)
{
    PROV_RC2_CTX *ctx = (PROV_RC2_CTX *)vctx;

    ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
    OPENSSL_clear_free(ctx,  sizeof(*ctx));
}

static void *rc2_dupctx(void *ctx)
{
    PROV_RC2_CTX *in = (PROV_RC2_CTX *)ctx;
    PROV_RC2_CTX *ret;

    if (!ossl_prov_is_running())
        return NULL;

    ret = OPENSSL_malloc(sizeof(*ret));
    if (ret == NULL)
        return NULL;
    *ret = *in;

    return ret;
}

static int rc2_keybits_to_magic(int keybits)
{
    switch (keybits) {
    case 128:
        return RC2_128_MAGIC;
    case 64:
        return RC2_64_MAGIC;
    case 40:
        return RC2_40_MAGIC;
    }
    ERR_raise(ERR_LIB_PROV, PROV_R_UNSUPPORTED_KEY_SIZE);
    return 0;
}

static int rc2_magic_to_keybits(int magic)
{
    switch (magic) {
    case RC2_128_MAGIC:
        return 128;
    case RC2_64_MAGIC:
        return 64;
    case RC2_40_MAGIC:
        return 40;
    }
    ERR_raise(ERR_LIB_PROV, PROV_R_UNSUPPORTED_KEY_SIZE);
    return 0;
}

static int rc2_einit(void *ctx, const unsigned char *key, size_t keylen,
                          const unsigned char *iv, size_t ivlen,
                          const OSSL_PARAM params[])
{
    if (!ossl_cipher_generic_einit(ctx, key, keylen, iv, ivlen, NULL))
        return 0;
    return rc2_set_ctx_params(ctx, params);
}

static int rc2_dinit(void *ctx, const unsigned char *key, size_t keylen,
                          const unsigned char *iv, size_t ivlen,
                          const OSSL_PARAM params[])
{
    if (!ossl_cipher_generic_dinit(ctx, key, keylen, iv, ivlen, NULL))
        return 0;
    return rc2_set_ctx_params(ctx, params);
}

static int rc2_get_ctx_params(void *vctx, OSSL_PARAM params[])
{
    PROV_RC2_CTX *ctx = (PROV_RC2_CTX *)vctx;
    OSSL_PARAM *p;

    if (!ossl_cipher_generic_get_ctx_params(vctx, params))
        return 0;
    p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_RC2_KEYBITS);
    if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->key_bits)) {
        ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
        return 0;
    }
    p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS);
    if (p != NULL) {
        long num;
        int i;
        ASN1_TYPE *type;
        unsigned char *d = p->data;
        unsigned char **dd = d == NULL ? NULL : &d;

        if (p->data_type != OSSL_PARAM_OCTET_STRING) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
            return 0;
        }
        if ((type = ASN1_TYPE_new()) == NULL) {
            ERR_raise(ERR_LIB_PROV, ERR_R_ASN1_LIB);
            return 0;
        }

        /* Is this the original IV or the running IV? */
        num = rc2_keybits_to_magic(ctx->key_bits);
        if (!ASN1_TYPE_set_int_octetstring(type, num,
                                           ctx->base.iv, ctx->base.ivlen)) {
            ASN1_TYPE_free(type);
            ERR_raise(ERR_LIB_PROV, ERR_R_ASN1_LIB);
            return 0;
        }
        /*
         * IF the caller has a buffer, we pray to the gods they got the
         * size right.  There's no way to tell the i2d functions...
         */
        i = i2d_ASN1_TYPE(type, dd);
        if (i >= 0)
            p->return_size = (size_t)i;

        ASN1_TYPE_free(type);
        if (i < 0) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
            return 0;
        }
    }
    return 1;
}

static int rc2_set_ctx_params(void *vctx, const OSSL_PARAM params[])
{
    PROV_RC2_CTX *ctx = (PROV_RC2_CTX *)vctx;
    const OSSL_PARAM *p;

    if (params == NULL)
        return 1;

    if (!ossl_cipher_var_keylen_set_ctx_params(vctx, params))
        return 0;
    p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_RC2_KEYBITS);
    if (p != NULL) {
         if (!OSSL_PARAM_get_size_t(p, &ctx->key_bits)) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
            return 0;
        }
    }
    p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS);
    if (p != NULL) {
        ASN1_TYPE *type = NULL;
        long num = 0;
        const unsigned char *d = p->data;
        int ret = 1;
        unsigned char iv[16];

        if (p->data_type != OSSL_PARAM_OCTET_STRING
            || ctx->base.ivlen > sizeof(iv)
            || (type = d2i_ASN1_TYPE(NULL, &d, p->data_size)) == NULL
            || ((size_t)ASN1_TYPE_get_int_octetstring(type, &num, iv,
                                                      ctx->base.ivlen)
                != ctx->base.ivlen)
            || !ossl_cipher_generic_initiv(&ctx->base, iv, ctx->base.ivlen)
            || (ctx->key_bits = rc2_magic_to_keybits(num)) == 0) {
            ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
            ret = 0;
        }
        ASN1_TYPE_free(type);
        if (ret == 0)
            return 0;
        /*
         * This code assumes that the caller will call
         * EVP_CipherInit_ex() with a non NULL key in order to setup a key that
         * uses the keylen and keybits that were set here.
         */
        ctx->base.keylen = ctx->key_bits / 8;
    }
    return 1;
}

CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_START(rc2)
OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_RC2_KEYBITS, NULL),
OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS, NULL, 0),
CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_END(rc2)

CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_START(rc2)
OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_RC2_KEYBITS, NULL),
OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS, NULL, 0),
CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_END(rc2)

#define IMPLEMENT_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##_##kbits##_##lcmode##_get_params(OSSL_PARAM params[])          \
{                                                                              \
    return ossl_cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE,    \
                                          flags, kbits, blkbits, ivbits);      \
}                                                                              \
static OSSL_FUNC_cipher_newctx_fn alg##_##kbits##_##lcmode##_newctx;           \
static void * alg##_##kbits##_##lcmode##_newctx(void *provctx)                 \
{                                                                              \
     PROV_##UCALG##_CTX *ctx;                                                  \
     if (!ossl_prov_is_running())                                              \
        return NULL;                                                           \
     ctx = OPENSSL_zalloc(sizeof(*ctx));                                       \
     if (ctx != NULL) {                                                        \
         ossl_cipher_generic_initkey(ctx, kbits, blkbits, ivbits,              \
                                EVP_CIPH_##UCMODE##_MODE, flags,               \
                                ossl_prov_cipher_hw_##alg##_##lcmode(kbits),   \
                                NULL);                                         \
         ctx->key_bits = kbits;                                                \
     }                                                                         \
     return ctx;                                                               \
}                                                                              \
const OSSL_DISPATCH ossl_##alg##kbits##lcmode##_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))rc2_einit },              \
    { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))rc2_dinit },              \
    { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))ossl_cipher_generic_##typ##_update },\
    { OSSL_FUNC_CIPHER_FINAL, (void (*)(void))ossl_cipher_generic_##typ##_final },  \
    { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))ossl_cipher_generic_cipher },   \
    { OSSL_FUNC_CIPHER_GET_PARAMS,                                             \
      (void (*)(void)) alg##_##kbits##_##lcmode##_get_params },                \
    { OSSL_FUNC_CIPHER_GETTABLE_PARAMS,                                        \
      (void (*)(void))ossl_cipher_generic_gettable_params },                   \
    { OSSL_FUNC_CIPHER_GET_CTX_PARAMS,                                         \
      (void (*)(void))rc2_get_ctx_params },                                    \
    { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,                                    \
      (void (*)(void))rc2_gettable_ctx_params },                               \
    { OSSL_FUNC_CIPHER_SET_CTX_PARAMS,                                         \
      (void (*)(void))rc2_set_ctx_params },                                    \
    { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,                                    \
     (void (*)(void))rc2_settable_ctx_params },                                \
    { 0, NULL }                                                                \
};

/* ossl_rc2128ecb_functions */
IMPLEMENT_cipher(rc2, RC2, ecb, ECB, RC2_FLAGS, 128, 64, 0, block)
/* ossl_rc2128cbc_functions */
IMPLEMENT_cipher(rc2, RC2, cbc, CBC, RC2_FLAGS, 128, 64, 64, block)
/* ossl_rc240cbc_functions */
IMPLEMENT_cipher(rc2, RC2, cbc, CBC, RC2_FLAGS, 40, 64, 64, block)
/* ossl_rc264cbc_functions */
IMPLEMENT_cipher(rc2, RC2, cbc, CBC, RC2_FLAGS, 64, 64, 64, block)

/* ossl_rc2128ofb128_functions */
IMPLEMENT_cipher(rc2, RC2, ofb128, OFB, RC2_FLAGS, 128, 8, 64, stream)
/* ossl_rc2128cfb128_functions */
IMPLEMENT_cipher(rc2, RC2, cfb128, CFB, RC2_FLAGS, 128, 8, 64, stream)
Commit	Line	Data
f816aa47	1	/*
a28d06f3	2	* Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
f816aa47 SL	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 RC2 cipher modes ecb, cbc, ofb, cfb */
	11
ee2993ab P	12	/*
	13	* RC2 low level APIs are deprecated for public use, but still ok for internal
	14	* use.
	15	*/
	16	#include "internal/deprecated.h"
	17
2741128e	18	#include <openssl/proverr.h>
f816aa47	19	#include "cipher_rc2.h"
af3e7e1b	20	#include "prov/implementations.h"
f99d3eed	21	#include "prov/providercommon.h"
f816aa47 SL	22
	23	#define RC2_40_MAGIC 0xa0
	24	#define RC2_64_MAGIC 0x78
	25	#define RC2_128_MAGIC 0x3a
a054d15c	26	#define RC2_FLAGS PROV_CIPHER_FLAG_VARIABLE_LENGTH
f816aa47	27
8f42380a P	28	static OSSL_FUNC_cipher_encrypt_init_fn rc2_einit;
8f42380a P	29	static OSSL_FUNC_cipher_decrypt_init_fn rc2_dinit;
363b1e5d DMSP	30	static OSSL_FUNC_cipher_freectx_fn rc2_freectx;
	31	static OSSL_FUNC_cipher_dupctx_fn rc2_dupctx;
	32	static OSSL_FUNC_cipher_gettable_ctx_params_fn rc2_gettable_ctx_params;
	33	static OSSL_FUNC_cipher_settable_ctx_params_fn rc2_settable_ctx_params;
8f42380a	34	static OSSL_FUNC_cipher_set_ctx_params_fn rc2_set_ctx_params;
f816aa47 SL	35
	36	static void rc2_freectx(void *vctx)
	37	{
	38	PROV_RC2_CTX ctx = (PROV_RC2_CTX )vctx;
	39
592dcfd3	40	ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
f816aa47 SL	41	OPENSSL_clear_free(ctx, sizeof(*ctx));
	42	}
	43
	44	static void rc2_dupctx(void ctx)
	45	{
	46	PROV_RC2_CTX in = (PROV_RC2_CTX )ctx;
f99d3eed	47	PROV_RC2_CTX *ret;
f816aa47	48
f99d3eed P	49	if (!ossl_prov_is_running())
	50	return NULL;
	51
	52	ret = OPENSSL_malloc(sizeof(*ret));
e077455e	53	if (ret == NULL)
f816aa47	54	return NULL;
f816aa47 SL	55	ret = in;
	56
	57	return ret;
	58	}
	59
	60	static int rc2_keybits_to_magic(int keybits)
	61	{
	62	switch (keybits) {
	63	case 128:
	64	return RC2_128_MAGIC;
	65	case 64:
	66	return RC2_64_MAGIC;
	67	case 40:
	68	return RC2_40_MAGIC;
	69	}
	70	ERR_raise(ERR_LIB_PROV, PROV_R_UNSUPPORTED_KEY_SIZE);
	71	return 0;
	72	}
	73
	74	static int rc2_magic_to_keybits(int magic)
	75	{
	76	switch (magic) {
	77	case RC2_128_MAGIC:
	78	return 128;
	79	case RC2_64_MAGIC:
	80	return 64;
	81	case RC2_40_MAGIC:
	82	return 40;
	83	}
	84	ERR_raise(ERR_LIB_PROV, PROV_R_UNSUPPORTED_KEY_SIZE);
	85	return 0;
	86	}
	87
8f42380a P	88	static int rc2_einit(void ctx, const unsigned char key, size_t keylen,
	89	const unsigned char *iv, size_t ivlen,
	90	const OSSL_PARAM params[])
	91	{
	92	if (!ossl_cipher_generic_einit(ctx, key, keylen, iv, ivlen, NULL))
	93	return 0;
	94	return rc2_set_ctx_params(ctx, params);
	95	}
	96
	97	static int rc2_dinit(void ctx, const unsigned char key, size_t keylen,
	98	const unsigned char *iv, size_t ivlen,
	99	const OSSL_PARAM params[])
	100	{
	101	if (!ossl_cipher_generic_dinit(ctx, key, keylen, iv, ivlen, NULL))
	102	return 0;
	103	return rc2_set_ctx_params(ctx, params);
	104	}
	105
f816aa47 SL	106	static int rc2_get_ctx_params(void *vctx, OSSL_PARAM params[])
	107	{
	108	PROV_RC2_CTX ctx = (PROV_RC2_CTX )vctx;
	109	OSSL_PARAM *p;
	110
592dcfd3	111	if (!ossl_cipher_generic_get_ctx_params(vctx, params))
f816aa47 SL	112	return 0;
	113	p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_RC2_KEYBITS);
	114	if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->key_bits)) {
	115	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
	116	return 0;
	117	}
592ea4ba	118	p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS);
f816aa47 SL	119	if (p != NULL) {
	120	long num;
	121	int i;
	122	ASN1_TYPE *type;
	123	unsigned char *d = p->data;
	124	unsigned char **dd = d == NULL ? NULL : &d;
	125
	126	if (p->data_type != OSSL_PARAM_OCTET_STRING) {
	127	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
	128	return 0;
	129	}
	130	if ((type = ASN1_TYPE_new()) == NULL) {
e077455e	131	ERR_raise(ERR_LIB_PROV, ERR_R_ASN1_LIB);
f816aa47 SL	132	return 0;
	133	}
	134
	135	/* Is this the original IV or the running IV? */
	136	num = rc2_keybits_to_magic(ctx->key_bits);
	137	if (!ASN1_TYPE_set_int_octetstring(type, num,
	138	ctx->base.iv, ctx->base.ivlen)) {
	139	ASN1_TYPE_free(type);
e077455e	140	ERR_raise(ERR_LIB_PROV, ERR_R_ASN1_LIB);
f816aa47 SL	141	return 0;
	142	}
	143	/*
	144	* IF the caller has a buffer, we pray to the gods they got the
	145	* size right. There's no way to tell the i2d functions...
	146	*/
	147	i = i2d_ASN1_TYPE(type, dd);
	148	if (i >= 0)
	149	p->return_size = (size_t)i;
	150
	151	ASN1_TYPE_free(type);
	152	if (i < 0) {
	153	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
	154	return 0;
	155	}
	156	}
	157	return 1;
	158	}
	159
8f42380a	160	static int rc2_set_ctx_params(void *vctx, const OSSL_PARAM params[])
f816aa47 SL	161	{
	162	PROV_RC2_CTX ctx = (PROV_RC2_CTX )vctx;
	163	const OSSL_PARAM *p;
	164
8f42380a P	165	if (params == NULL)
	166	return 1;
	167
592dcfd3	168	if (!ossl_cipher_var_keylen_set_ctx_params(vctx, params))
f816aa47 SL	169	return 0;
	170	p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_RC2_KEYBITS);
	171	if (p != NULL) {
	172	if (!OSSL_PARAM_get_size_t(p, &ctx->key_bits)) {
	173	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
	174	return 0;
	175	}
	176	}
592ea4ba	177	p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS);
f816aa47 SL	178	if (p != NULL) {
	179	ASN1_TYPE *type = NULL;
	180	long num = 0;
	181	const unsigned char *d = p->data;
	182	int ret = 1;
	183	unsigned char iv[16];
	184
	185	if (p->data_type != OSSL_PARAM_OCTET_STRING
	186	\|\| ctx->base.ivlen > sizeof(iv)
	187	\|\| (type = d2i_ASN1_TYPE(NULL, &d, p->data_size)) == NULL
	188	\|\| ((size_t)ASN1_TYPE_get_int_octetstring(type, &num, iv,
	189	ctx->base.ivlen)
	190	!= ctx->base.ivlen)
592dcfd3	191	\|\| !ossl_cipher_generic_initiv(&ctx->base, iv, ctx->base.ivlen)
f816aa47 SL	192	\|\| (ctx->key_bits = rc2_magic_to_keybits(num)) == 0) {
	193	ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
	194	ret = 0;
	195	}
	196	ASN1_TYPE_free(type);
	197	if (ret == 0)
	198	return 0;
	199	/*
	200	* This code assumes that the caller will call
	201	* EVP_CipherInit_ex() with a non NULL key in order to setup a key that
	202	* uses the keylen and keybits that were set here.
	203	*/
	204	ctx->base.keylen = ctx->key_bits / 8;
	205	}
	206	return 1;
	207	}
	208
	209	CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_START(rc2)
	210	OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_RC2_KEYBITS, NULL),
592ea4ba	211	OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS, NULL, 0),
f816aa47 SL	212	CIPHER_DEFAULT_GETTABLE_CTX_PARAMS_END(rc2)
	213
	214	CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_START(rc2)
d23adad1	215	OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
f816aa47	216	OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_RC2_KEYBITS, NULL),
592ea4ba	217	OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS, NULL, 0),
f816aa47 SL	218	CIPHER_DEFAULT_SETTABLE_CTX_PARAMS_END(rc2)
	219
	220	#define IMPLEMENT_cipher(alg, UCALG, lcmode, UCMODE, flags, kbits, blkbits, \
	221	ivbits, typ) \
363b1e5d	222	static OSSL_FUNC_cipher_get_params_fn alg##_##kbits##_##lcmode##_get_params; \
f816aa47 SL	223	static int alg##_##kbits##_##lcmode##_get_params(OSSL_PARAM params[]) \
f816aa47 SL	224	{ \
592dcfd3 P	225	return ossl_cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, \
592dcfd3 P	226	flags, kbits, blkbits, ivbits); \
f816aa47	227	} \
363b1e5d	228	static OSSL_FUNC_cipher_newctx_fn alg##_##kbits##_##lcmode##_newctx; \
f816aa47 SL	229	static void * alg##_##kbits##_##lcmode##_newctx(void *provctx) \
f816aa47 SL	230	{ \
f99d3eed	231	PROV_##UCALG##_CTX *ctx; \
592dcfd3	232	if (!ossl_prov_is_running()) \
f99d3eed P	233	return NULL; \
f99d3eed P	234	ctx = OPENSSL_zalloc(sizeof(*ctx)); \
f816aa47	235	if (ctx != NULL) { \
592dcfd3	236	ossl_cipher_generic_initkey(ctx, kbits, blkbits, ivbits, \
f816aa47	237	EVP_CIPH_##UCMODE##_MODE, flags, \
7d6766cb P	238	ossl_prov_cipher_hw_##alg##_##lcmode(kbits), \
7d6766cb P	239	NULL); \
f816aa47 SL	240	ctx->key_bits = kbits; \
	241	} \
	242	return ctx; \
	243	} \
1be63951	244	const OSSL_DISPATCH ossl_##alg##kbits##lcmode##_functions[] = { \
f816aa47 SL	245	{ OSSL_FUNC_CIPHER_NEWCTX, \
	246	(void (*)(void)) alg##_##kbits##_##lcmode##_newctx }, \
	247	{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void)) alg##_freectx }, \
	248	{ OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void)) alg##_dupctx }, \
8f42380a P	249	{ OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))rc2_einit }, \
8f42380a P	250	{ OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))rc2_dinit }, \
592dcfd3 P	251	{ OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))ossl_cipher_generic_##typ##_update },\
	252	{ OSSL_FUNC_CIPHER_FINAL, (void (*)(void))ossl_cipher_generic_##typ##_final }, \
	253	{ OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))ossl_cipher_generic_cipher }, \
f816aa47 SL	254	{ OSSL_FUNC_CIPHER_GET_PARAMS, \
	255	(void (*)(void)) alg##_##kbits##_##lcmode##_get_params }, \
	256	{ OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
592dcfd3	257	(void (*)(void))ossl_cipher_generic_gettable_params }, \
f816aa47 SL	258	{ OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \
	259	(void (*)(void))rc2_get_ctx_params }, \
	260	{ OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
	261	(void (*)(void))rc2_gettable_ctx_params }, \
	262	{ OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
	263	(void (*)(void))rc2_set_ctx_params }, \
	264	{ OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
	265	(void (*)(void))rc2_settable_ctx_params }, \
	266	{ 0, NULL } \
	267	};
	268
1be63951	269	/* ossl_rc2128ecb_functions */
a054d15c	270	IMPLEMENT_cipher(rc2, RC2, ecb, ECB, RC2_FLAGS, 128, 64, 0, block)
1be63951	271	/* ossl_rc2128cbc_functions */
a054d15c	272	IMPLEMENT_cipher(rc2, RC2, cbc, CBC, RC2_FLAGS, 128, 64, 64, block)
1be63951	273	/* ossl_rc240cbc_functions */
a054d15c	274	IMPLEMENT_cipher(rc2, RC2, cbc, CBC, RC2_FLAGS, 40, 64, 64, block)
1be63951	275	/* ossl_rc264cbc_functions */
a054d15c	276	IMPLEMENT_cipher(rc2, RC2, cbc, CBC, RC2_FLAGS, 64, 64, 64, block)
f816aa47	277
1be63951	278	/* ossl_rc2128ofb128_functions */
a054d15c	279	IMPLEMENT_cipher(rc2, RC2, ofb128, OFB, RC2_FLAGS, 128, 8, 64, stream)
1be63951	280	/* ossl_rc2128cfb128_functions */
a054d15c	281	IMPLEMENT_cipher(rc2, RC2, cfb128, CFB, RC2_FLAGS, 128, 8, 64, stream)