/src/openssl/providers/implementations/kdfs/pvkkdf.c

Source (jump to first uncovered line)
/*
 * Copyright 2018-2023 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 <string.h>
#include <openssl/evp.h>
#include <openssl/core_names.h>
#include <openssl/proverr.h>
#include <openssl/err.h>
#include "internal/common.h"
#include "internal/numbers.h"    /* SIZE_MAX */
#include "prov/provider_ctx.h"
#include "prov/providercommon.h"
#include "prov/implementations.h"
#include "prov/provider_util.h"

static OSSL_FUNC_kdf_newctx_fn kdf_pvk_new;
static OSSL_FUNC_kdf_dupctx_fn kdf_pvk_dup;
static OSSL_FUNC_kdf_freectx_fn kdf_pvk_free;
static OSSL_FUNC_kdf_reset_fn kdf_pvk_reset;
static OSSL_FUNC_kdf_derive_fn kdf_pvk_derive;
static OSSL_FUNC_kdf_settable_ctx_params_fn kdf_pvk_settable_ctx_params;
static OSSL_FUNC_kdf_set_ctx_params_fn kdf_pvk_set_ctx_params;
static OSSL_FUNC_kdf_gettable_ctx_params_fn kdf_pvk_gettable_ctx_params;
static OSSL_FUNC_kdf_get_ctx_params_fn kdf_pvk_get_ctx_params;

typedef struct {
    void *provctx;
    unsigned char *pass;
    size_t pass_len;
    unsigned char *salt;
    size_t salt_len;
    PROV_DIGEST digest;
} KDF_PVK;

static void kdf_pvk_init(KDF_PVK *ctx);

static void *kdf_pvk_new(void *provctx)
{
    KDF_PVK *ctx;

    if (!ossl_prov_is_running())
        return NULL;

    ctx = OPENSSL_zalloc(sizeof(*ctx));
    if (ctx == NULL)
        return NULL;
    ctx->provctx = provctx;
    kdf_pvk_init(ctx);
    return ctx;
}

static void kdf_pvk_cleanup(KDF_PVK *ctx)
{
    ossl_prov_digest_reset(&ctx->digest);
    OPENSSL_free(ctx->salt);
    OPENSSL_clear_free(ctx->pass, ctx->pass_len);
    OPENSSL_cleanse(ctx, sizeof(*ctx));
}

static void kdf_pvk_free(void *vctx)
{
    KDF_PVK *ctx = (KDF_PVK *)vctx;

    if (ctx != NULL) {
        kdf_pvk_cleanup(ctx);
        OPENSSL_free(ctx);
    }
}

static void *kdf_pvk_dup(void *vctx)
{
    const KDF_PVK *src = (const KDF_PVK *)vctx;
    KDF_PVK *dest;

    dest = kdf_pvk_new(src->provctx);
    if (dest != NULL)
        if (!ossl_prov_memdup(src->salt, src->salt_len,
                              &dest->salt, &dest->salt_len)
                || !ossl_prov_memdup(src->pass, src->pass_len,
                                     &dest->pass , &dest->pass_len)
                || !ossl_prov_digest_copy(&dest->digest, &src->digest))
            goto err;
    return dest;

 err:
    kdf_pvk_free(dest);
    return NULL;
}

static void kdf_pvk_reset(void *vctx)
{
    KDF_PVK *ctx = (KDF_PVK *)vctx;
    void *provctx = ctx->provctx;

    kdf_pvk_cleanup(ctx);
    ctx->provctx = provctx;
    kdf_pvk_init(ctx);
}

static void kdf_pvk_init(KDF_PVK *ctx)
{
    OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
    OSSL_LIB_CTX *provctx = PROV_LIBCTX_OF(ctx->provctx);

    params[0] = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
                                                 SN_sha1, 0);
    if (!ossl_prov_digest_load_from_params(&ctx->digest, params, provctx))
        /* This is an error, but there is no way to indicate such directly */
        ossl_prov_digest_reset(&ctx->digest);
}

static int pvk_set_membuf(unsigned char **buffer, size_t *buflen,
                             const OSSL_PARAM *p)
{
    OPENSSL_clear_free(*buffer, *buflen);
    *buffer = NULL;
    *buflen = 0;

    if (p->data_size == 0) {
        if ((*buffer = OPENSSL_malloc(1)) == NULL)
            return 0;
    } else if (p->data != NULL) {
        if (!OSSL_PARAM_get_octet_string(p, (void **)buffer, 0, buflen))
            return 0;
    }
    return 1;
}

static int kdf_pvk_derive(void *vctx, unsigned char *key, size_t keylen,
                             const OSSL_PARAM params[])
{
    KDF_PVK *ctx = (KDF_PVK *)vctx;
    const EVP_MD *md;
    EVP_MD_CTX *mctx;
    int res;

    if (!ossl_prov_is_running() || !kdf_pvk_set_ctx_params(ctx, params))
        return 0;

    if (ctx->pass == NULL) {
        ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_PASS);
        return 0;
    }

    if (ctx->salt == NULL) {
        ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_SALT);
        return 0;
    }

    md = ossl_prov_digest_md(&ctx->digest);
    if (md == NULL) {
        ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DIGEST);
        return 0;
    }
    res = EVP_MD_get_size(md);
    if (res <= 0) {
        ERR_raise(ERR_LIB_PROV, PROV_R_BAD_LENGTH);
        return 0;
    }
    if ((size_t)res > keylen) {
        ERR_raise(ERR_LIB_PROV, PROV_R_LENGTH_TOO_LARGE);
        return 0;
    }

    mctx = EVP_MD_CTX_new();
    res = mctx != NULL
          && EVP_DigestInit_ex(mctx, md, NULL)
          && EVP_DigestUpdate(mctx, ctx->salt, ctx->salt_len)
          && EVP_DigestUpdate(mctx, ctx->pass, ctx->pass_len)
          && EVP_DigestFinal_ex(mctx, key, NULL);
    EVP_MD_CTX_free(mctx);
    return res;
}

/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef pvk_set_ctx_params_list
static const OSSL_PARAM pvk_set_ctx_params_list[] = {
    OSSL_PARAM_utf8_string(OSSL_KDF_PARAM_PROPERTIES, NULL, 0),
    OSSL_PARAM_utf8_string(OSSL_KDF_PARAM_DIGEST, NULL, 0),
    OSSL_PARAM_octet_string(OSSL_KDF_PARAM_PASSWORD, NULL, 0),
    OSSL_PARAM_octet_string(OSSL_KDF_PARAM_SALT, NULL, 0),
    OSSL_PARAM_END
};
#endif

#ifndef pvk_set_ctx_params_st
struct pvk_set_ctx_params_st {
    OSSL_PARAM *digest;
    OSSL_PARAM *engine;
    OSSL_PARAM *pass;
    OSSL_PARAM *propq;
    OSSL_PARAM *salt;
};
#endif

#ifndef pvk_set_ctx_params_decoder
static int pvk_set_ctx_params_decoder
    (const OSSL_PARAM *p, struct pvk_set_ctx_params_st *r)
{
    const char *s;

    memset(r, 0, sizeof(*r));
    if (p != NULL)
        for (; (s = p->key) != NULL; p++)
            switch(s[0]) {
            default:
                break;
            case 'd':
                if (ossl_likely(strcmp("igest", s + 1) == 0)) {
                    /* KDF_PARAM_DIGEST */
                    if (ossl_unlikely(r->digest != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->digest = (OSSL_PARAM *)p;
                }
                break;
            case 'e':
                if (ossl_likely(strcmp("ngine", s + 1) == 0)) {
                    /* ALG_PARAM_ENGINE */
                    if (ossl_unlikely(r->engine != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->engine = (OSSL_PARAM *)p;
                }
                break;
            case 'p':
                switch(s[1]) {
                default:
                    break;
                case 'a':
                    if (ossl_likely(strcmp("ss", s + 2) == 0)) {
                        /* KDF_PARAM_PASSWORD */
                        if (ossl_unlikely(r->pass != NULL)) {
                            ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                           "param %s is repeated", s);
                            return 0;
                        }
                        r->pass = (OSSL_PARAM *)p;
                    }
                    break;
                case 'r':
                    if (ossl_likely(strcmp("operties", s + 2) == 0)) {
                        /* KDF_PARAM_PROPERTIES */
                        if (ossl_unlikely(r->propq != NULL)) {
                            ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                           "param %s is repeated", s);
                            return 0;
                        }
                        r->propq = (OSSL_PARAM *)p;
                    }
                }
                break;
            case 's':
                if (ossl_likely(strcmp("alt", s + 1) == 0)) {
                    /* KDF_PARAM_SALT */
                    if (ossl_unlikely(r->salt != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->salt = (OSSL_PARAM *)p;
                }
            }
    return 1;
}
#endif
/* End of machine generated */

static int kdf_pvk_set_ctx_params(void *vctx, const OSSL_PARAM params[])
{
    struct pvk_set_ctx_params_st p;
    KDF_PVK *ctx = vctx;
    OSSL_LIB_CTX *provctx;

    if (ctx == NULL || !pvk_set_ctx_params_decoder(params, &p))
        return 0;

    provctx = PROV_LIBCTX_OF(ctx->provctx);

    if (!ossl_prov_digest_load(&ctx->digest, p.digest, p.propq, p.engine,
                               provctx))
        return 0;

    if (p.pass != NULL && !pvk_set_membuf(&ctx->pass, &ctx->pass_len, p.pass))
        return 0;

    if (p.salt != NULL && !pvk_set_membuf(&ctx->salt, &ctx->salt_len, p.salt))
        return 0;

    return 1;
}

static const OSSL_PARAM *kdf_pvk_settable_ctx_params(ossl_unused void *ctx,
                                                        ossl_unused void *p_ctx)
{
    return pvk_set_ctx_params_list;
}

/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef pvk_get_ctx_params_list
static const OSSL_PARAM pvk_get_ctx_params_list[] = {
    OSSL_PARAM_size_t(OSSL_KDF_PARAM_SIZE, NULL),
    OSSL_PARAM_END
};
#endif

#ifndef pvk_get_ctx_params_st
struct pvk_get_ctx_params_st {
    OSSL_PARAM *size;
};
#endif

#ifndef pvk_get_ctx_params_decoder
static int pvk_get_ctx_params_decoder
    (const OSSL_PARAM *p, struct pvk_get_ctx_params_st *r)
{
    const char *s;

    memset(r, 0, sizeof(*r));
    if (p != NULL)
        for (; (s = p->key) != NULL; p++)
            if (ossl_likely(strcmp("size", s + 0) == 0)) {
                /* KDF_PARAM_SIZE */
                if (ossl_unlikely(r->size != NULL)) {
                    ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                   "param %s is repeated", s);
                    return 0;
                }
                r->size = (OSSL_PARAM *)p;
            }
    return 1;
}
#endif
/* End of machine generated */

static int kdf_pvk_get_ctx_params(void *vctx, OSSL_PARAM params[])
{
    struct pvk_get_ctx_params_st p;
    KDF_PVK *ctx = vctx;

    if (ctx == NULL || !pvk_get_ctx_params_decoder(params, &p))
        return 0;

    if (p.size != NULL && !OSSL_PARAM_set_size_t(p.size, SIZE_MAX))
        return 0;
    return 1;
}

static const OSSL_PARAM *kdf_pvk_gettable_ctx_params(ossl_unused void *ctx,
                                                        ossl_unused void *p_ctx)
{
    return pvk_get_ctx_params_list;
}

const OSSL_DISPATCH ossl_kdf_pvk_functions[] = {
    { OSSL_FUNC_KDF_NEWCTX, (void(*)(void))kdf_pvk_new },
    { OSSL_FUNC_KDF_DUPCTX, (void(*)(void))kdf_pvk_dup },
    { OSSL_FUNC_KDF_FREECTX, (void(*)(void))kdf_pvk_free },
    { OSSL_FUNC_KDF_RESET, (void(*)(void))kdf_pvk_reset },
    { OSSL_FUNC_KDF_DERIVE, (void(*)(void))kdf_pvk_derive },
    { OSSL_FUNC_KDF_SETTABLE_CTX_PARAMS,
      (void(*)(void))kdf_pvk_settable_ctx_params },
    { OSSL_FUNC_KDF_SET_CTX_PARAMS, (void(*)(void))kdf_pvk_set_ctx_params },
    { OSSL_FUNC_KDF_GETTABLE_CTX_PARAMS,
      (void(*)(void))kdf_pvk_gettable_ctx_params },
    { OSSL_FUNC_KDF_GET_CTX_PARAMS, (void(*)(void))kdf_pvk_get_ctx_params },
    OSSL_DISPATCH_END
};

Coverage Report

Created: 2025-08-28 06:41

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2018-2023 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
11		#include <string.h>
12		#include <openssl/evp.h>
13		#include <openssl/core_names.h>
14		#include <openssl/proverr.h>
15		#include <openssl/err.h>
16		#include "internal/common.h"
17		#include "internal/numbers.h" /* SIZE_MAX */
18		#include "prov/provider_ctx.h"
19		#include "prov/providercommon.h"
20		#include "prov/implementations.h"
21		#include "prov/provider_util.h"
22
23		static OSSL_FUNC_kdf_newctx_fn kdf_pvk_new;
24		static OSSL_FUNC_kdf_dupctx_fn kdf_pvk_dup;
25		static OSSL_FUNC_kdf_freectx_fn kdf_pvk_free;
26		static OSSL_FUNC_kdf_reset_fn kdf_pvk_reset;
27		static OSSL_FUNC_kdf_derive_fn kdf_pvk_derive;
28		static OSSL_FUNC_kdf_settable_ctx_params_fn kdf_pvk_settable_ctx_params;
29		static OSSL_FUNC_kdf_set_ctx_params_fn kdf_pvk_set_ctx_params;
30		static OSSL_FUNC_kdf_gettable_ctx_params_fn kdf_pvk_gettable_ctx_params;
31		static OSSL_FUNC_kdf_get_ctx_params_fn kdf_pvk_get_ctx_params;
32
33		typedef struct {
34		void *provctx;
35		unsigned char *pass;
36		size_t pass_len;
37		unsigned char *salt;
38		size_t salt_len;
39		PROV_DIGEST digest;
40		} KDF_PVK;
41
42		static void kdf_pvk_init(KDF_PVK *ctx);
43
44		static void kdf_pvk_new(void provctx)
45	0	{
46	0	KDF_PVK *ctx;
47
48	0	if (!ossl_prov_is_running())
49	0	return NULL;
50
51	0	ctx = OPENSSL_zalloc(sizeof(*ctx));
52	0	if (ctx == NULL)
53	0	return NULL;
54	0	ctx->provctx = provctx;
55	0	kdf_pvk_init(ctx);
56	0	return ctx;
57	0	}
58
59		static void kdf_pvk_cleanup(KDF_PVK *ctx)
60	0	{
61	0	ossl_prov_digest_reset(&ctx->digest);
62	0	OPENSSL_free(ctx->salt);
63	0	OPENSSL_clear_free(ctx->pass, ctx->pass_len);
64	0	OPENSSL_cleanse(ctx, sizeof(*ctx));
65	0	}
66
67		static void kdf_pvk_free(void *vctx)
68	0	{
69	0	KDF_PVK ctx = (KDF_PVK )vctx;
70
71	0	if (ctx != NULL) {
72	0	kdf_pvk_cleanup(ctx);
73	0	OPENSSL_free(ctx);
74	0	}
75	0	}
76
77		static void kdf_pvk_dup(void vctx)
78	0	{
79	0	const KDF_PVK src = (const KDF_PVK )vctx;
80	0	KDF_PVK *dest;
81
82	0	dest = kdf_pvk_new(src->provctx);
83	0	if (dest != NULL)
84	0	if (!ossl_prov_memdup(src->salt, src->salt_len,
85	0	&dest->salt, &dest->salt_len)
86	0	\|\| !ossl_prov_memdup(src->pass, src->pass_len,
87	0	&dest->pass , &dest->pass_len)
88	0	\|\| !ossl_prov_digest_copy(&dest->digest, &src->digest))
89	0	goto err;
90	0	return dest;
91
92	0	err:
93	0	kdf_pvk_free(dest);
94	0	return NULL;
95	0	}
96
97		static void kdf_pvk_reset(void *vctx)
98	0	{
99	0	KDF_PVK ctx = (KDF_PVK )vctx;
100	0	void *provctx = ctx->provctx;
101
102	0	kdf_pvk_cleanup(ctx);
103	0	ctx->provctx = provctx;
104	0	kdf_pvk_init(ctx);
105	0	}
106
107		static void kdf_pvk_init(KDF_PVK *ctx)
108	0	{
109	0	OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
110	0	OSSL_LIB_CTX *provctx = PROV_LIBCTX_OF(ctx->provctx);
111
112	0	params[0] = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
113	0	SN_sha1, 0);
114	0	if (!ossl_prov_digest_load_from_params(&ctx->digest, params, provctx))
115		/* This is an error, but there is no way to indicate such directly */
116	0	ossl_prov_digest_reset(&ctx->digest);
117	0	}
118
119		static int pvk_set_membuf(unsigned char *buffer, size_t buflen,
120		const OSSL_PARAM *p)
121	0	{
122	0	OPENSSL_clear_free(buffer, buflen);
123	0	*buffer = NULL;
124	0	*buflen = 0;
125
126	0	if (p->data_size == 0) {
127	0	if ((*buffer = OPENSSL_malloc(1)) == NULL)
128	0	return 0;
129	0	} else if (p->data != NULL) {
130	0	if (!OSSL_PARAM_get_octet_string(p, (void **)buffer, 0, buflen))
131	0	return 0;
132	0	}
133	0	return 1;
134	0	}
135
136		static int kdf_pvk_derive(void vctx, unsigned char key, size_t keylen,
137		const OSSL_PARAM params[])
138	0	{
139	0	KDF_PVK ctx = (KDF_PVK )vctx;
140	0	const EVP_MD *md;
141	0	EVP_MD_CTX *mctx;
142	0	int res;
143
144	0	if (!ossl_prov_is_running() \|\| !kdf_pvk_set_ctx_params(ctx, params))
145	0	return 0;
146
147	0	if (ctx->pass == NULL) {
148	0	ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_PASS);
149	0	return 0;
150	0	}
151
152	0	if (ctx->salt == NULL) {
153	0	ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_SALT);
154	0	return 0;
155	0	}
156
157	0	md = ossl_prov_digest_md(&ctx->digest);
158	0	if (md == NULL) {
159	0	ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DIGEST);
160	0	return 0;
161	0	}
162	0	res = EVP_MD_get_size(md);
163	0	if (res <= 0) {
164	0	ERR_raise(ERR_LIB_PROV, PROV_R_BAD_LENGTH);
165	0	return 0;
166	0	}
167	0	if ((size_t)res > keylen) {
168	0	ERR_raise(ERR_LIB_PROV, PROV_R_LENGTH_TOO_LARGE);
169	0	return 0;
170	0	}
171
172	0	mctx = EVP_MD_CTX_new();
173	0	res = mctx != NULL
174	0	&& EVP_DigestInit_ex(mctx, md, NULL)
175	0	&& EVP_DigestUpdate(mctx, ctx->salt, ctx->salt_len)
176	0	&& EVP_DigestUpdate(mctx, ctx->pass, ctx->pass_len)
177	0	&& EVP_DigestFinal_ex(mctx, key, NULL);
178	0	EVP_MD_CTX_free(mctx);
179	0	return res;
180	0	}
181
182		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
183		#ifndef pvk_set_ctx_params_list
184		static const OSSL_PARAM pvk_set_ctx_params_list[] = {
185		OSSL_PARAM_utf8_string(OSSL_KDF_PARAM_PROPERTIES, NULL, 0),
186		OSSL_PARAM_utf8_string(OSSL_KDF_PARAM_DIGEST, NULL, 0),
187		OSSL_PARAM_octet_string(OSSL_KDF_PARAM_PASSWORD, NULL, 0),
188		OSSL_PARAM_octet_string(OSSL_KDF_PARAM_SALT, NULL, 0),
189		OSSL_PARAM_END
190		};
191		#endif
192
193		#ifndef pvk_set_ctx_params_st
194		struct pvk_set_ctx_params_st {
195		OSSL_PARAM *digest;
196		OSSL_PARAM *engine;
197		OSSL_PARAM *pass;
198		OSSL_PARAM *propq;
199		OSSL_PARAM *salt;
200		};
201		#endif
202
203		#ifndef pvk_set_ctx_params_decoder
204		static int pvk_set_ctx_params_decoder
205		(const OSSL_PARAM p, struct pvk_set_ctx_params_st r)
206	0	{
207	0	const char *s;
208
209	0	memset(r, 0, sizeof(*r));
210	0	if (p != NULL)
211	0	for (; (s = p->key) != NULL; p++)
212	0	switch(s[0]) {
213	0	default:
214	0	break;
215	0	case 'd':
216	0	if (ossl_likely(strcmp("igest", s + 1) == 0)) {
217		/* KDF_PARAM_DIGEST */
218	0	if (ossl_unlikely(r->digest != NULL)) {
219	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
220	0	"param %s is repeated", s);
221	0	return 0;
222	0	}
223	0	r->digest = (OSSL_PARAM *)p;
224	0	}
225	0	break;
226	0	case 'e':
227	0	if (ossl_likely(strcmp("ngine", s + 1) == 0)) {
228		/* ALG_PARAM_ENGINE */
229	0	if (ossl_unlikely(r->engine != NULL)) {
230	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
231	0	"param %s is repeated", s);
232	0	return 0;
233	0	}
234	0	r->engine = (OSSL_PARAM *)p;
235	0	}
236	0	break;
237	0	case 'p':
238	0	switch(s[1]) {
239	0	default:
240	0	break;
241	0	case 'a':
242	0	if (ossl_likely(strcmp("ss", s + 2) == 0)) {
243		/* KDF_PARAM_PASSWORD */
244	0	if (ossl_unlikely(r->pass != NULL)) {
245	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
246	0	"param %s is repeated", s);
247	0	return 0;
248	0	}
249	0	r->pass = (OSSL_PARAM *)p;
250	0	}
251	0	break;
252	0	case 'r':
253	0	if (ossl_likely(strcmp("operties", s + 2) == 0)) {
254		/* KDF_PARAM_PROPERTIES */
255	0	if (ossl_unlikely(r->propq != NULL)) {
256	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
257	0	"param %s is repeated", s);
258	0	return 0;
259	0	}
260	0	r->propq = (OSSL_PARAM *)p;
261	0	}
262	0	}
263	0	break;
264	0	case 's':
265	0	if (ossl_likely(strcmp("alt", s + 1) == 0)) {
266		/* KDF_PARAM_SALT */
267	0	if (ossl_unlikely(r->salt != NULL)) {
268	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
269	0	"param %s is repeated", s);
270	0	return 0;
271	0	}
272	0	r->salt = (OSSL_PARAM *)p;
273	0	}
274	0	}
275	0	return 1;
276	0	}
277		#endif
278		/* End of machine generated */
279
280		static int kdf_pvk_set_ctx_params(void *vctx, const OSSL_PARAM params[])
281	0	{
282	0	struct pvk_set_ctx_params_st p;
283	0	KDF_PVK *ctx = vctx;
284	0	OSSL_LIB_CTX *provctx;
285
286	0	if (ctx == NULL \|\| !pvk_set_ctx_params_decoder(params, &p))
287	0	return 0;
288
289	0	provctx = PROV_LIBCTX_OF(ctx->provctx);
290
291	0	if (!ossl_prov_digest_load(&ctx->digest, p.digest, p.propq, p.engine,
292	0	provctx))
293	0	return 0;
294
295	0	if (p.pass != NULL && !pvk_set_membuf(&ctx->pass, &ctx->pass_len, p.pass))
296	0	return 0;
297
298	0	if (p.salt != NULL && !pvk_set_membuf(&ctx->salt, &ctx->salt_len, p.salt))
299	0	return 0;
300
301	0	return 1;
302	0	}
303
304		static const OSSL_PARAM kdf_pvk_settable_ctx_params(ossl_unused void ctx,
305		ossl_unused void *p_ctx)
306	0	{
307	0	return pvk_set_ctx_params_list;
308	0	}
309
310		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
311		#ifndef pvk_get_ctx_params_list
312		static const OSSL_PARAM pvk_get_ctx_params_list[] = {
313		OSSL_PARAM_size_t(OSSL_KDF_PARAM_SIZE, NULL),
314		OSSL_PARAM_END
315		};
316		#endif
317
318		#ifndef pvk_get_ctx_params_st
319		struct pvk_get_ctx_params_st {
320		OSSL_PARAM *size;
321		};
322		#endif
323
324		#ifndef pvk_get_ctx_params_decoder
325		static int pvk_get_ctx_params_decoder
326		(const OSSL_PARAM p, struct pvk_get_ctx_params_st r)
327	0	{
328	0	const char *s;
329
330	0	memset(r, 0, sizeof(*r));
331	0	if (p != NULL)
332	0	for (; (s = p->key) != NULL; p++)
333	0	if (ossl_likely(strcmp("size", s + 0) == 0)) {
334		/* KDF_PARAM_SIZE */
335	0	if (ossl_unlikely(r->size != NULL)) {
336	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
337	0	"param %s is repeated", s);
338	0	return 0;
339	0	}
340	0	r->size = (OSSL_PARAM *)p;
341	0	}
342	0	return 1;
343	0	}
344		#endif
345		/* End of machine generated */
346
347		static int kdf_pvk_get_ctx_params(void *vctx, OSSL_PARAM params[])
348	0	{
349	0	struct pvk_get_ctx_params_st p;
350	0	KDF_PVK *ctx = vctx;
351
352	0	if (ctx == NULL \|\| !pvk_get_ctx_params_decoder(params, &p))
353	0	return 0;
354
355	0	if (p.size != NULL && !OSSL_PARAM_set_size_t(p.size, SIZE_MAX))
356	0	return 0;
357	0	return 1;
358	0	}
359
360		static const OSSL_PARAM kdf_pvk_gettable_ctx_params(ossl_unused void ctx,
361		ossl_unused void *p_ctx)
362	0	{
363	0	return pvk_get_ctx_params_list;
364	0	}
365
366		const OSSL_DISPATCH ossl_kdf_pvk_functions[] = {
367		{ OSSL_FUNC_KDF_NEWCTX, (void(*)(void))kdf_pvk_new },
368		{ OSSL_FUNC_KDF_DUPCTX, (void(*)(void))kdf_pvk_dup },
369		{ OSSL_FUNC_KDF_FREECTX, (void(*)(void))kdf_pvk_free },
370		{ OSSL_FUNC_KDF_RESET, (void(*)(void))kdf_pvk_reset },
371		{ OSSL_FUNC_KDF_DERIVE, (void(*)(void))kdf_pvk_derive },
372		{ OSSL_FUNC_KDF_SETTABLE_CTX_PARAMS,
373		(void(*)(void))kdf_pvk_settable_ctx_params },
374		{ OSSL_FUNC_KDF_SET_CTX_PARAMS, (void(*)(void))kdf_pvk_set_ctx_params },
375		{ OSSL_FUNC_KDF_GETTABLE_CTX_PARAMS,
376		(void(*)(void))kdf_pvk_gettable_ctx_params },
377		{ OSSL_FUNC_KDF_GET_CTX_PARAMS, (void(*)(void))kdf_pvk_get_ctx_params },
378		OSSL_DISPATCH_END
379		};