/src/openssl/providers/implementations/kdfs/pbkdf1.c

Source
/*
 * Copyright 1999-2025 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/trace.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <openssl/evp.h>
#include <openssl/kdf.h>
#include <openssl/core_names.h>
#include <openssl/proverr.h>
#include "internal/common.h"
#include "internal/cryptlib.h"
#include "internal/numbers.h"
#include "internal/skey.h"
#include "crypto/evp.h"
#include "crypto/types.h"
#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_pbkdf1_new;
static OSSL_FUNC_kdf_dupctx_fn kdf_pbkdf1_dup;
static OSSL_FUNC_kdf_freectx_fn kdf_pbkdf1_free;
static OSSL_FUNC_kdf_reset_fn kdf_pbkdf1_reset;
static OSSL_FUNC_kdf_derive_fn kdf_pbkdf1_derive;
static OSSL_FUNC_kdf_settable_ctx_params_fn kdf_pbkdf1_settable_ctx_params;
static OSSL_FUNC_kdf_set_ctx_params_fn kdf_pbkdf1_set_ctx_params;
static OSSL_FUNC_kdf_gettable_ctx_params_fn kdf_pbkdf1_gettable_ctx_params;
static OSSL_FUNC_kdf_get_ctx_params_fn kdf_pbkdf1_get_ctx_params;
static OSSL_FUNC_kdf_set_skey_fn kdf_pbkdf1_set_skey;
static OSSL_FUNC_kdf_derive_skey_fn kdf_pbkdf1_derive_skey;

typedef struct {
    void *provctx;
    PROV_DIGEST digest;
    unsigned char *pass;
    size_t pass_len;
    unsigned char *salt;
    size_t salt_len;
    uint64_t iter;
} KDF_PBKDF1;

/*
 * PKCS5 PBKDF1 compatible key/IV generation as specified in:
 * https://tools.ietf.org/html/rfc8018#page-10
 */

static int kdf_pbkdf1_do_derive(const unsigned char *pass, size_t passlen,
                                const unsigned char *salt, size_t saltlen,
                                uint64_t iter, const EVP_MD *md_type,
                                unsigned char *out, size_t n)
{
    uint64_t i;
    int mdsize, ret = 0;
    unsigned char md_tmp[EVP_MAX_MD_SIZE];
    EVP_MD_CTX *ctx = NULL;

    ctx = EVP_MD_CTX_new();
    if (ctx == NULL) {
        ERR_raise(ERR_LIB_PROV, ERR_R_EVP_LIB);
        goto err;
    }

    if (!EVP_DigestInit_ex(ctx, md_type, NULL)
        || !EVP_DigestUpdate(ctx, pass, passlen)
        || !EVP_DigestUpdate(ctx, salt, saltlen)
        || !EVP_DigestFinal_ex(ctx, md_tmp, NULL))
        goto err;
    mdsize = EVP_MD_size(md_type);
    if (mdsize <= 0)
        goto err;
    if (n > (size_t)mdsize) {
        ERR_raise(ERR_LIB_PROV, PROV_R_LENGTH_TOO_LARGE);
        goto err;
    }

    for (i = 1; i < iter; i++) {
        if (!EVP_DigestInit_ex(ctx, md_type, NULL))
            goto err;
        if (!EVP_DigestUpdate(ctx, md_tmp, mdsize))
            goto err;
        if (!EVP_DigestFinal_ex(ctx, md_tmp, NULL))
            goto err;
    }

    memcpy(out, md_tmp, n);
    ret = 1;
err:
    OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);
    EVP_MD_CTX_free(ctx);
    return ret;
}

static void *kdf_pbkdf1_new(void *provctx)
{
    KDF_PBKDF1 *ctx;

    if (!ossl_prov_is_running())
        return NULL;

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

static void kdf_pbkdf1_cleanup(KDF_PBKDF1 *ctx)
{
    ossl_prov_digest_reset(&ctx->digest);
    OPENSSL_free(ctx->salt);
    OPENSSL_clear_free(ctx->pass, ctx->pass_len);
    memset(ctx, 0, sizeof(*ctx));
}

static void kdf_pbkdf1_free(void *vctx)
{
    KDF_PBKDF1 *ctx = (KDF_PBKDF1 *)vctx;

    if (ctx != NULL) {
        kdf_pbkdf1_cleanup(ctx);
        OPENSSL_free(ctx);
    }
}

static void kdf_pbkdf1_reset(void *vctx)
{
    KDF_PBKDF1 *ctx = (KDF_PBKDF1 *)vctx;
    void *provctx = ctx->provctx;

    kdf_pbkdf1_cleanup(ctx);
    ctx->provctx = provctx;
}

static void *kdf_pbkdf1_dup(void *vctx)
{
    const KDF_PBKDF1 *src = (const KDF_PBKDF1 *)vctx;
    KDF_PBKDF1 *dest;

    dest = kdf_pbkdf1_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;
        dest->iter = src->iter;
    }
    return dest;

 err:
    kdf_pbkdf1_free(dest);
    return NULL;
}

static int kdf_pbkdf1_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_pbkdf1_set_membuf_skey(unsigned char **buffer, size_t *buflen,
                                      const PROV_SKEY *pskey)
{
    OPENSSL_clear_free(*buffer, *buflen);
    *buffer = NULL;
    *buflen = 0;

    if (pskey->length == 0) {
        if ((*buffer = OPENSSL_malloc(1)) == NULL)
            return 0;
    } else if (pskey->data != NULL) {
        *buffer = OPENSSL_malloc(pskey->length);
        if (*buffer == NULL)
            return 0;

        memcpy(*buffer, pskey->data, pskey->length);
        *buflen = pskey->length;
    }
    return 1;
}

static int kdf_pbkdf1_derive(void *vctx, unsigned char *key, size_t keylen,
                             const OSSL_PARAM params[])
{
    KDF_PBKDF1 *ctx = (KDF_PBKDF1 *)vctx;
    const EVP_MD *md;

    if (!ossl_prov_is_running() || !kdf_pbkdf1_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);
    return kdf_pbkdf1_do_derive(ctx->pass, ctx->pass_len, ctx->salt, ctx->salt_len,
                                ctx->iter, md, key, keylen);
}

/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef pbkdf1_set_ctx_params_list
static const OSSL_PARAM pbkdf1_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_uint64(OSSL_KDF_PARAM_ITER, NULL),
    OSSL_PARAM_END
};
#endif

#ifndef pbkdf1_set_ctx_params_st
struct pbkdf1_set_ctx_params_st {
    OSSL_PARAM *digest;
    OSSL_PARAM *engine;
    OSSL_PARAM *iter;
    OSSL_PARAM *propq;
    OSSL_PARAM *pw;
    OSSL_PARAM *salt;
};
#endif

#ifndef pbkdf1_set_ctx_params_decoder
static int pbkdf1_set_ctx_params_decoder
    (const OSSL_PARAM *p, struct pbkdf1_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)) {
                    /* OSSL_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)) {
                    /* OSSL_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 'i':
                if (ossl_likely(strcmp("ter", s + 1) == 0)) {
                    /* OSSL_KDF_PARAM_ITER */
                    if (ossl_unlikely(r->iter != NULL)) {
                        ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                       "param %s is repeated", s);
                        return 0;
                    }
                    r->iter = (OSSL_PARAM *)p;
                }
                break;
            case 'p':
                switch(s[1]) {
                default:
                    break;
                case 'a':
                    if (ossl_likely(strcmp("ss", s + 2) == 0)) {
                        /* OSSL_KDF_PARAM_PASSWORD */
                        if (ossl_unlikely(r->pw != NULL)) {
                            ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                           "param %s is repeated", s);
                            return 0;
                        }
                        r->pw = (OSSL_PARAM *)p;
                    }
                    break;
                case 'r':
                    if (ossl_likely(strcmp("operties", s + 2) == 0)) {
                        /* OSSL_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)) {
                    /* OSSL_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_pbkdf1_set_ctx_params(void *vctx, const OSSL_PARAM params[])
{
    struct pbkdf1_set_ctx_params_st p;
    KDF_PBKDF1 *ctx = vctx;
    OSSL_LIB_CTX *libctx;

    if (ctx == NULL || !pbkdf1_set_ctx_params_decoder(params, &p))
        return 0;

    libctx = PROV_LIBCTX_OF(ctx->provctx);

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

    if (p.pw != NULL && !kdf_pbkdf1_set_membuf(&ctx->pass, &ctx->pass_len, p.pw))
        return 0;

    if (p.salt != NULL && !kdf_pbkdf1_set_membuf(&ctx->salt, &ctx->salt_len, p.salt))
        return 0;

    if (p.iter != NULL && !OSSL_PARAM_get_uint64(p.iter, &ctx->iter))
            return 0;
    return 1;
}

static const OSSL_PARAM *kdf_pbkdf1_settable_ctx_params(ossl_unused void *ctx,
                                                        ossl_unused void *p_ctx)
{
    return pbkdf1_set_ctx_params_list;
}

/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef pbkdf1_get_ctx_params_list
static const OSSL_PARAM pbkdf1_get_ctx_params_list[] = {
    OSSL_PARAM_size_t(OSSL_KDF_PARAM_SIZE, NULL),
    OSSL_PARAM_END
};
#endif

#ifndef pbkdf1_get_ctx_params_st
struct pbkdf1_get_ctx_params_st {
    OSSL_PARAM *size;
};
#endif

#ifndef pbkdf1_get_ctx_params_decoder
static int pbkdf1_get_ctx_params_decoder
    (const OSSL_PARAM *p, struct pbkdf1_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)) {
                /* OSSL_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_pbkdf1_get_ctx_params(void *vctx, OSSL_PARAM params[])
{
    struct pbkdf1_get_ctx_params_st p;
    KDF_PBKDF1 *ctx = vctx;

    if (ctx == NULL || !pbkdf1_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_pbkdf1_gettable_ctx_params(ossl_unused void *ctx,
                                                        ossl_unused void *p_ctx)
{
    return pbkdf1_get_ctx_params_list;
}

static int kdf_pbkdf1_set_skey(void *vctx, void *skeydata, const char *paramname)
{
    KDF_PBKDF1 *ctx = (KDF_PBKDF1 *)vctx;
    PROV_SKEY *pskey = (PROV_SKEY *)skeydata;

    if (paramname == NULL || skeydata == NULL)
        return 0;

    if (strcmp(paramname, OSSL_KDF_PARAM_PASSWORD) == 0)
        return kdf_pbkdf1_set_membuf_skey(&ctx->pass, &ctx->pass_len, pskey);

    if (strcmp(paramname, OSSL_KDF_PARAM_SALT) == 0)
        return kdf_pbkdf1_set_membuf_skey(&ctx->salt, &ctx->salt_len, pskey);

    return 0;
}

static
void *kdf_pbkdf1_derive_skey(void *vctx, const char *key_type ossl_unused, void *provctx,
                             OSSL_FUNC_skeymgmt_import_fn *import,
                             size_t keylen, const OSSL_PARAM params[])
{
    unsigned char *key = NULL;
    void *ret = NULL;
    OSSL_PARAM import_params[2] = {OSSL_PARAM_END, OSSL_PARAM_END};

    if (import == NULL || keylen == 0)
        return NULL;

    if ((key = OPENSSL_zalloc(keylen)) == NULL)
        return NULL;

    if (kdf_pbkdf1_derive(vctx, key, keylen, params) == 0) {
        OPENSSL_free(key);
        return NULL;
    }

    import_params[0] = OSSL_PARAM_construct_octet_string(OSSL_SKEY_PARAM_RAW_BYTES,
                                                         (void *)key, keylen);

    ret = import(provctx, OSSL_SKEYMGMT_SELECT_SECRET_KEY, import_params);
    OPENSSL_free(key);

    return ret;
}

const OSSL_DISPATCH ossl_kdf_pbkdf1_functions[] = {
    { OSSL_FUNC_KDF_NEWCTX, (void(*)(void))kdf_pbkdf1_new },
    { OSSL_FUNC_KDF_DUPCTX, (void(*)(void))kdf_pbkdf1_dup },
    { OSSL_FUNC_KDF_FREECTX, (void(*)(void))kdf_pbkdf1_free },
    { OSSL_FUNC_KDF_RESET, (void(*)(void))kdf_pbkdf1_reset },
    { OSSL_FUNC_KDF_DERIVE, (void(*)(void))kdf_pbkdf1_derive },
    { OSSL_FUNC_KDF_SETTABLE_CTX_PARAMS,
      (void(*)(void))kdf_pbkdf1_settable_ctx_params },
    { OSSL_FUNC_KDF_SET_CTX_PARAMS, (void(*)(void))kdf_pbkdf1_set_ctx_params },
    { OSSL_FUNC_KDF_GETTABLE_CTX_PARAMS,
      (void(*)(void))kdf_pbkdf1_gettable_ctx_params },
    { OSSL_FUNC_KDF_GET_CTX_PARAMS, (void(*)(void))kdf_pbkdf1_get_ctx_params },
    { OSSL_FUNC_KDF_SET_SKEY, (void(*)(void))kdf_pbkdf1_set_skey },
    { OSSL_FUNC_KDF_DERIVE_SKEY, (void(*)(void))kdf_pbkdf1_derive_skey },
    OSSL_DISPATCH_END
};

Coverage Report

Created: 2025-10-12 06:56

Line	Count	Source
1		/*
2		* Copyright 1999-2025 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 <openssl/trace.h>
12		#include <stdlib.h>
13		#include <stdarg.h>
14		#include <string.h>
15		#include <openssl/evp.h>
16		#include <openssl/kdf.h>
17		#include <openssl/core_names.h>
18		#include <openssl/proverr.h>
19		#include "internal/common.h"
20		#include "internal/cryptlib.h"
21		#include "internal/numbers.h"
22		#include "internal/skey.h"
23		#include "crypto/evp.h"
24		#include "crypto/types.h"
25		#include "prov/provider_ctx.h"
26		#include "prov/providercommon.h"
27		#include "prov/implementations.h"
28		#include "prov/provider_util.h"
29
30		static OSSL_FUNC_kdf_newctx_fn kdf_pbkdf1_new;
31		static OSSL_FUNC_kdf_dupctx_fn kdf_pbkdf1_dup;
32		static OSSL_FUNC_kdf_freectx_fn kdf_pbkdf1_free;
33		static OSSL_FUNC_kdf_reset_fn kdf_pbkdf1_reset;
34		static OSSL_FUNC_kdf_derive_fn kdf_pbkdf1_derive;
35		static OSSL_FUNC_kdf_settable_ctx_params_fn kdf_pbkdf1_settable_ctx_params;
36		static OSSL_FUNC_kdf_set_ctx_params_fn kdf_pbkdf1_set_ctx_params;
37		static OSSL_FUNC_kdf_gettable_ctx_params_fn kdf_pbkdf1_gettable_ctx_params;
38		static OSSL_FUNC_kdf_get_ctx_params_fn kdf_pbkdf1_get_ctx_params;
39		static OSSL_FUNC_kdf_set_skey_fn kdf_pbkdf1_set_skey;
40		static OSSL_FUNC_kdf_derive_skey_fn kdf_pbkdf1_derive_skey;
41
42		typedef struct {
43		void *provctx;
44		PROV_DIGEST digest;
45		unsigned char *pass;
46		size_t pass_len;
47		unsigned char *salt;
48		size_t salt_len;
49		uint64_t iter;
50		} KDF_PBKDF1;
51
52		/*
53		* PKCS5 PBKDF1 compatible key/IV generation as specified in:
54		* https://tools.ietf.org/html/rfc8018#page-10
55		*/
56
57		static int kdf_pbkdf1_do_derive(const unsigned char *pass, size_t passlen,
58		const unsigned char *salt, size_t saltlen,
59		uint64_t iter, const EVP_MD *md_type,
60		unsigned char *out, size_t n)
61	0	{
62	0	uint64_t i;
63	0	int mdsize, ret = 0;
64	0	unsigned char md_tmp[EVP_MAX_MD_SIZE];
65	0	EVP_MD_CTX *ctx = NULL;
66
67	0	ctx = EVP_MD_CTX_new();
68	0	if (ctx == NULL) {
69	0	ERR_raise(ERR_LIB_PROV, ERR_R_EVP_LIB);
70	0	goto err;
71	0	}
72
73	0	if (!EVP_DigestInit_ex(ctx, md_type, NULL)
74	0	\|\| !EVP_DigestUpdate(ctx, pass, passlen)
75	0	\|\| !EVP_DigestUpdate(ctx, salt, saltlen)
76	0	\|\| !EVP_DigestFinal_ex(ctx, md_tmp, NULL))
77	0	goto err;
78	0	mdsize = EVP_MD_size(md_type);
79	0	if (mdsize <= 0)
80	0	goto err;
81	0	if (n > (size_t)mdsize) {
82	0	ERR_raise(ERR_LIB_PROV, PROV_R_LENGTH_TOO_LARGE);
83	0	goto err;
84	0	}
85
86	0	for (i = 1; i < iter; i++) {
87	0	if (!EVP_DigestInit_ex(ctx, md_type, NULL))
88	0	goto err;
89	0	if (!EVP_DigestUpdate(ctx, md_tmp, mdsize))
90	0	goto err;
91	0	if (!EVP_DigestFinal_ex(ctx, md_tmp, NULL))
92	0	goto err;
93	0	}
94
95	0	memcpy(out, md_tmp, n);
96	0	ret = 1;
97	0	err:
98	0	OPENSSL_cleanse(md_tmp, EVP_MAX_MD_SIZE);
99	0	EVP_MD_CTX_free(ctx);
100	0	return ret;
101	0	}
102
103		static void kdf_pbkdf1_new(void provctx)
104	0	{
105	0	KDF_PBKDF1 *ctx;
106
107	0	if (!ossl_prov_is_running())
108	0	return NULL;
109
110	0	ctx = OPENSSL_zalloc(sizeof(*ctx));
111	0	if (ctx == NULL)
112	0	return NULL;
113	0	ctx->provctx = provctx;
114	0	return ctx;
115	0	}
116
117		static void kdf_pbkdf1_cleanup(KDF_PBKDF1 *ctx)
118	0	{
119	0	ossl_prov_digest_reset(&ctx->digest);
120	0	OPENSSL_free(ctx->salt);
121	0	OPENSSL_clear_free(ctx->pass, ctx->pass_len);
122	0	memset(ctx, 0, sizeof(*ctx));
123	0	}
124
125		static void kdf_pbkdf1_free(void *vctx)
126	0	{
127	0	KDF_PBKDF1 ctx = (KDF_PBKDF1 )vctx;
128
129	0	if (ctx != NULL) {
130	0	kdf_pbkdf1_cleanup(ctx);
131	0	OPENSSL_free(ctx);
132	0	}
133	0	}
134
135		static void kdf_pbkdf1_reset(void *vctx)
136	0	{
137	0	KDF_PBKDF1 ctx = (KDF_PBKDF1 )vctx;
138	0	void *provctx = ctx->provctx;
139
140	0	kdf_pbkdf1_cleanup(ctx);
141	0	ctx->provctx = provctx;
142	0	}
143
144		static void kdf_pbkdf1_dup(void vctx)
145	0	{
146	0	const KDF_PBKDF1 src = (const KDF_PBKDF1 )vctx;
147	0	KDF_PBKDF1 *dest;
148
149	0	dest = kdf_pbkdf1_new(src->provctx);
150	0	if (dest != NULL) {
151	0	if (!ossl_prov_memdup(src->salt, src->salt_len,
152	0	&dest->salt, &dest->salt_len)
153	0	\|\| !ossl_prov_memdup(src->pass, src->pass_len,
154	0	&dest->pass , &dest->pass_len)
155	0	\|\| !ossl_prov_digest_copy(&dest->digest, &src->digest))
156	0	goto err;
157	0	dest->iter = src->iter;
158	0	}
159	0	return dest;
160
161	0	err:
162	0	kdf_pbkdf1_free(dest);
163	0	return NULL;
164	0	}
165
166		static int kdf_pbkdf1_set_membuf(unsigned char *buffer, size_t buflen,
167		const OSSL_PARAM *p)
168	0	{
169	0	OPENSSL_clear_free(buffer, buflen);
170	0	*buffer = NULL;
171	0	*buflen = 0;
172
173	0	if (p->data_size == 0) {
174	0	if ((*buffer = OPENSSL_malloc(1)) == NULL)
175	0	return 0;
176	0	} else if (p->data != NULL) {
177	0	if (!OSSL_PARAM_get_octet_string(p, (void **)buffer, 0, buflen))
178	0	return 0;
179	0	}
180	0	return 1;
181	0	}
182
183		static int kdf_pbkdf1_set_membuf_skey(unsigned char *buffer, size_t buflen,
184		const PROV_SKEY *pskey)
185	0	{
186	0	OPENSSL_clear_free(buffer, buflen);
187	0	*buffer = NULL;
188	0	*buflen = 0;
189
190	0	if (pskey->length == 0) {
191	0	if ((*buffer = OPENSSL_malloc(1)) == NULL)
192	0	return 0;
193	0	} else if (pskey->data != NULL) {
194	0	*buffer = OPENSSL_malloc(pskey->length);
195	0	if (*buffer == NULL)
196	0	return 0;
197
198	0	memcpy(*buffer, pskey->data, pskey->length);
199	0	*buflen = pskey->length;
200	0	}
201	0	return 1;
202	0	}
203
204		static int kdf_pbkdf1_derive(void vctx, unsigned char key, size_t keylen,
205		const OSSL_PARAM params[])
206	0	{
207	0	KDF_PBKDF1 ctx = (KDF_PBKDF1 )vctx;
208	0	const EVP_MD *md;
209
210	0	if (!ossl_prov_is_running() \|\| !kdf_pbkdf1_set_ctx_params(ctx, params))
211	0	return 0;
212
213	0	if (ctx->pass == NULL) {
214	0	ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_PASS);
215	0	return 0;
216	0	}
217
218	0	if (ctx->salt == NULL) {
219	0	ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_SALT);
220	0	return 0;
221	0	}
222
223	0	md = ossl_prov_digest_md(&ctx->digest);
224	0	return kdf_pbkdf1_do_derive(ctx->pass, ctx->pass_len, ctx->salt, ctx->salt_len,
225	0	ctx->iter, md, key, keylen);
226	0	}
227
228		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
229		#ifndef pbkdf1_set_ctx_params_list
230		static const OSSL_PARAM pbkdf1_set_ctx_params_list[] = {
231		OSSL_PARAM_utf8_string(OSSL_KDF_PARAM_PROPERTIES, NULL, 0),
232		OSSL_PARAM_utf8_string(OSSL_KDF_PARAM_DIGEST, NULL, 0),
233		OSSL_PARAM_octet_string(OSSL_KDF_PARAM_PASSWORD, NULL, 0),
234		OSSL_PARAM_octet_string(OSSL_KDF_PARAM_SALT, NULL, 0),
235		OSSL_PARAM_uint64(OSSL_KDF_PARAM_ITER, NULL),
236		OSSL_PARAM_END
237		};
238		#endif
239
240		#ifndef pbkdf1_set_ctx_params_st
241		struct pbkdf1_set_ctx_params_st {
242		OSSL_PARAM *digest;
243		OSSL_PARAM *engine;
244		OSSL_PARAM *iter;
245		OSSL_PARAM *propq;
246		OSSL_PARAM *pw;
247		OSSL_PARAM *salt;
248		};
249		#endif
250
251		#ifndef pbkdf1_set_ctx_params_decoder
252		static int pbkdf1_set_ctx_params_decoder
253		(const OSSL_PARAM p, struct pbkdf1_set_ctx_params_st r)
254	0	{
255	0	const char *s;
256
257	0	memset(r, 0, sizeof(*r));
258	0	if (p != NULL)
259	0	for (; (s = p->key) != NULL; p++)
260	0	switch(s[0]) {
261	0	default:
262	0	break;
263	0	case 'd':
264	0	if (ossl_likely(strcmp("igest", s + 1) == 0)) {
265		/* OSSL_KDF_PARAM_DIGEST */
266	0	if (ossl_unlikely(r->digest != NULL)) {
267	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
268	0	"param %s is repeated", s);
269	0	return 0;
270	0	}
271	0	r->digest = (OSSL_PARAM *)p;
272	0	}
273	0	break;
274	0	case 'e':
275	0	if (ossl_likely(strcmp("ngine", s + 1) == 0)) {
276		/* OSSL_ALG_PARAM_ENGINE */
277	0	if (ossl_unlikely(r->engine != NULL)) {
278	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
279	0	"param %s is repeated", s);
280	0	return 0;
281	0	}
282	0	r->engine = (OSSL_PARAM *)p;
283	0	}
284	0	break;
285	0	case 'i':
286	0	if (ossl_likely(strcmp("ter", s + 1) == 0)) {
287		/* OSSL_KDF_PARAM_ITER */
288	0	if (ossl_unlikely(r->iter != NULL)) {
289	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
290	0	"param %s is repeated", s);
291	0	return 0;
292	0	}
293	0	r->iter = (OSSL_PARAM *)p;
294	0	}
295	0	break;
296	0	case 'p':
297	0	switch(s[1]) {
298	0	default:
299	0	break;
300	0	case 'a':
301	0	if (ossl_likely(strcmp("ss", s + 2) == 0)) {
302		/* OSSL_KDF_PARAM_PASSWORD */
303	0	if (ossl_unlikely(r->pw != NULL)) {
304	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
305	0	"param %s is repeated", s);
306	0	return 0;
307	0	}
308	0	r->pw = (OSSL_PARAM *)p;
309	0	}
310	0	break;
311	0	case 'r':
312	0	if (ossl_likely(strcmp("operties", s + 2) == 0)) {
313		/* OSSL_KDF_PARAM_PROPERTIES */
314	0	if (ossl_unlikely(r->propq != NULL)) {
315	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
316	0	"param %s is repeated", s);
317	0	return 0;
318	0	}
319	0	r->propq = (OSSL_PARAM *)p;
320	0	}
321	0	}
322	0	break;
323	0	case 's':
324	0	if (ossl_likely(strcmp("alt", s + 1) == 0)) {
325		/* OSSL_KDF_PARAM_SALT */
326	0	if (ossl_unlikely(r->salt != NULL)) {
327	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
328	0	"param %s is repeated", s);
329	0	return 0;
330	0	}
331	0	r->salt = (OSSL_PARAM *)p;
332	0	}
333	0	}
334	0	return 1;
335	0	}
336		#endif
337		/* End of machine generated */
338
339		static int kdf_pbkdf1_set_ctx_params(void *vctx, const OSSL_PARAM params[])
340	0	{
341	0	struct pbkdf1_set_ctx_params_st p;
342	0	KDF_PBKDF1 *ctx = vctx;
343	0	OSSL_LIB_CTX *libctx;
344
345	0	if (ctx == NULL \|\| !pbkdf1_set_ctx_params_decoder(params, &p))
346	0	return 0;
347
348	0	libctx = PROV_LIBCTX_OF(ctx->provctx);
349
350	0	if (!ossl_prov_digest_load(&ctx->digest, p.digest,
351	0	p.propq, p.engine, libctx))
352	0	return 0;
353
354	0	if (p.pw != NULL && !kdf_pbkdf1_set_membuf(&ctx->pass, &ctx->pass_len, p.pw))
355	0	return 0;
356
357	0	if (p.salt != NULL && !kdf_pbkdf1_set_membuf(&ctx->salt, &ctx->salt_len, p.salt))
358	0	return 0;
359
360	0	if (p.iter != NULL && !OSSL_PARAM_get_uint64(p.iter, &ctx->iter))
361	0	return 0;
362	0	return 1;
363	0	}
364
365		static const OSSL_PARAM kdf_pbkdf1_settable_ctx_params(ossl_unused void ctx,
366		ossl_unused void *p_ctx)
367	0	{
368	0	return pbkdf1_set_ctx_params_list;
369	0	}
370
371		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
372		#ifndef pbkdf1_get_ctx_params_list
373		static const OSSL_PARAM pbkdf1_get_ctx_params_list[] = {
374		OSSL_PARAM_size_t(OSSL_KDF_PARAM_SIZE, NULL),
375		OSSL_PARAM_END
376		};
377		#endif
378
379		#ifndef pbkdf1_get_ctx_params_st
380		struct pbkdf1_get_ctx_params_st {
381		OSSL_PARAM *size;
382		};
383		#endif
384
385		#ifndef pbkdf1_get_ctx_params_decoder
386		static int pbkdf1_get_ctx_params_decoder
387		(const OSSL_PARAM p, struct pbkdf1_get_ctx_params_st r)
388	0	{
389	0	const char *s;
390
391	0	memset(r, 0, sizeof(*r));
392	0	if (p != NULL)
393	0	for (; (s = p->key) != NULL; p++)
394	0	if (ossl_likely(strcmp("size", s + 0) == 0)) {
395		/* OSSL_KDF_PARAM_SIZE */
396	0	if (ossl_unlikely(r->size != NULL)) {
397	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
398	0	"param %s is repeated", s);
399	0	return 0;
400	0	}
401	0	r->size = (OSSL_PARAM *)p;
402	0	}
403	0	return 1;
404	0	}
405		#endif
406		/* End of machine generated */
407
408		static int kdf_pbkdf1_get_ctx_params(void *vctx, OSSL_PARAM params[])
409	0	{
410	0	struct pbkdf1_get_ctx_params_st p;
411	0	KDF_PBKDF1 *ctx = vctx;
412
413	0	if (ctx == NULL \|\| !pbkdf1_get_ctx_params_decoder(params, &p))
414	0	return 0;
415
416	0	if (p.size != NULL && !OSSL_PARAM_set_size_t(p.size, SIZE_MAX))
417	0	return 0;
418	0	return 1;
419	0	}
420
421		static const OSSL_PARAM kdf_pbkdf1_gettable_ctx_params(ossl_unused void ctx,
422		ossl_unused void *p_ctx)
423	0	{
424	0	return pbkdf1_get_ctx_params_list;
425	0	}
426
427		static int kdf_pbkdf1_set_skey(void vctx, void skeydata, const char *paramname)
428	0	{
429	0	KDF_PBKDF1 ctx = (KDF_PBKDF1 )vctx;
430	0	PROV_SKEY pskey = (PROV_SKEY )skeydata;
431
432	0	if (paramname == NULL \|\| skeydata == NULL)
433	0	return 0;
434
435	0	if (strcmp(paramname, OSSL_KDF_PARAM_PASSWORD) == 0)
436	0	return kdf_pbkdf1_set_membuf_skey(&ctx->pass, &ctx->pass_len, pskey);
437
438	0	if (strcmp(paramname, OSSL_KDF_PARAM_SALT) == 0)
439	0	return kdf_pbkdf1_set_membuf_skey(&ctx->salt, &ctx->salt_len, pskey);
440
441	0	return 0;
442	0	}
443
444		static
445		void kdf_pbkdf1_derive_skey(void vctx, const char key_type ossl_unused, void provctx,
446		OSSL_FUNC_skeymgmt_import_fn *import,
447		size_t keylen, const OSSL_PARAM params[])
448	0	{
449	0	unsigned char *key = NULL;
450	0	void *ret = NULL;
451	0	OSSL_PARAM import_params[2] = {OSSL_PARAM_END, OSSL_PARAM_END};
452
453	0	if (import == NULL \|\| keylen == 0)
454	0	return NULL;
455
456	0	if ((key = OPENSSL_zalloc(keylen)) == NULL)
457	0	return NULL;
458
459	0	if (kdf_pbkdf1_derive(vctx, key, keylen, params) == 0) {
460	0	OPENSSL_free(key);
461	0	return NULL;
462	0	}
463
464	0	import_params[0] = OSSL_PARAM_construct_octet_string(OSSL_SKEY_PARAM_RAW_BYTES,
465	0	(void *)key, keylen);
466
467	0	ret = import(provctx, OSSL_SKEYMGMT_SELECT_SECRET_KEY, import_params);
468	0	OPENSSL_free(key);
469
470	0	return ret;
471	0	}
472
473		const OSSL_DISPATCH ossl_kdf_pbkdf1_functions[] = {
474		{ OSSL_FUNC_KDF_NEWCTX, (void(*)(void))kdf_pbkdf1_new },
475		{ OSSL_FUNC_KDF_DUPCTX, (void(*)(void))kdf_pbkdf1_dup },
476		{ OSSL_FUNC_KDF_FREECTX, (void(*)(void))kdf_pbkdf1_free },
477		{ OSSL_FUNC_KDF_RESET, (void(*)(void))kdf_pbkdf1_reset },
478		{ OSSL_FUNC_KDF_DERIVE, (void(*)(void))kdf_pbkdf1_derive },
479		{ OSSL_FUNC_KDF_SETTABLE_CTX_PARAMS,
480		(void(*)(void))kdf_pbkdf1_settable_ctx_params },
481		{ OSSL_FUNC_KDF_SET_CTX_PARAMS, (void(*)(void))kdf_pbkdf1_set_ctx_params },
482		{ OSSL_FUNC_KDF_GETTABLE_CTX_PARAMS,
483		(void(*)(void))kdf_pbkdf1_gettable_ctx_params },
484		{ OSSL_FUNC_KDF_GET_CTX_PARAMS, (void(*)(void))kdf_pbkdf1_get_ctx_params },
485		{ OSSL_FUNC_KDF_SET_SKEY, (void(*)(void))kdf_pbkdf1_set_skey },
486		{ OSSL_FUNC_KDF_DERIVE_SKEY, (void(*)(void))kdf_pbkdf1_derive_skey },
487		OSSL_DISPATCH_END
488		};