/src/openssl/providers/implementations/kdfs/pkcs12kdf.c

Source (jump to first uncovered line)
/*
 * Copyright 1999-2023 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 <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 "crypto/evp.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_pkcs12_new;
static OSSL_FUNC_kdf_dupctx_fn kdf_pkcs12_dup;
static OSSL_FUNC_kdf_freectx_fn kdf_pkcs12_free;
static OSSL_FUNC_kdf_reset_fn kdf_pkcs12_reset;
static OSSL_FUNC_kdf_derive_fn kdf_pkcs12_derive;
static OSSL_FUNC_kdf_settable_ctx_params_fn kdf_pkcs12_settable_ctx_params;
static OSSL_FUNC_kdf_set_ctx_params_fn kdf_pkcs12_set_ctx_params;
static OSSL_FUNC_kdf_gettable_ctx_params_fn kdf_pkcs12_gettable_ctx_params;
static OSSL_FUNC_kdf_get_ctx_params_fn kdf_pkcs12_get_ctx_params;

typedef struct {
    void *provctx;
    PROV_DIGEST digest;
    unsigned char *pass;
    size_t pass_len;
    unsigned char *salt;
    size_t salt_len;
    uint64_t iter;
    int id;
} KDF_PKCS12;

/* PKCS12 compatible key/IV generation */

static int pkcs12kdf_derive(const unsigned char *pass, size_t passlen,
                            const unsigned char *salt, size_t saltlen,
                            int id, uint64_t iter, const EVP_MD *md_type,
                            unsigned char *out, size_t n)
{
    unsigned char *B = NULL, *D = NULL, *I = NULL, *p = NULL, *Ai = NULL;
    size_t Slen, Plen, Ilen;
    size_t i, j, k, u, v;
    uint64_t iter_cnt;
    int ret = 0, ui, vi;
    EVP_MD_CTX *ctx = NULL;

    ctx = EVP_MD_CTX_new();
    if (ctx == NULL) {
        ERR_raise(ERR_LIB_PROV, ERR_R_EVP_LIB);
        goto end;
    }
    vi = EVP_MD_get_block_size(md_type);
    ui = EVP_MD_get_size(md_type);
    if (ui <= 0 || vi <= 0) {
        ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DIGEST_SIZE);
        goto end;
    }
    u = (size_t)ui;
    v = (size_t)vi;
    D = OPENSSL_malloc(v);
    Ai = OPENSSL_malloc(u);
    B = OPENSSL_malloc(v + 1);
    Slen = v * ((saltlen + v - 1) / v);
    if (passlen != 0)
        Plen = v * ((passlen + v - 1) / v);
    else
        Plen = 0;
    Ilen = Slen + Plen;
    I = OPENSSL_malloc(Ilen);
    if (D == NULL || Ai == NULL || B == NULL || I == NULL)
        goto end;
    for (i = 0; i < v; i++)
        D[i] = id;
    p = I;
    for (i = 0; i < Slen; i++)
        *p++ = salt[i % saltlen];
    for (i = 0; i < Plen; i++)
        *p++ = pass[i % passlen];
    for (;;) {
        if (!EVP_DigestInit_ex(ctx, md_type, NULL)
            || !EVP_DigestUpdate(ctx, D, v)
            || !EVP_DigestUpdate(ctx, I, Ilen)
            || !EVP_DigestFinal_ex(ctx, Ai, NULL))
            goto end;
        for (iter_cnt = 1; iter_cnt < iter; iter_cnt++) {
            if (!EVP_DigestInit_ex(ctx, md_type, NULL)
                || !EVP_DigestUpdate(ctx, Ai, u)
                || !EVP_DigestFinal_ex(ctx, Ai, NULL))
                goto end;
        }
        memcpy(out, Ai, n < u ? n : u);
        if (u >= n) {
            ret = 1;
            break;
        }
        n -= u;
        out += u;
        for (j = 0; j < v; j++)
            B[j] = Ai[j % u];
        for (j = 0; j < Ilen; j += v) {
            unsigned char *Ij = I + j;
            uint16_t c = 1;

            /* Work out Ij = Ij + B + 1 */
            for (k = v; k > 0;) {
                k--;
                c += Ij[k] + B[k];
                Ij[k] = (unsigned char)c;
                c >>= 8;
            }
        }
    }

 end:
    OPENSSL_free(Ai);
    OPENSSL_free(B);
    OPENSSL_free(D);
    OPENSSL_free(I);
    EVP_MD_CTX_free(ctx);
    return ret;
}

static void *kdf_pkcs12_new(void *provctx)
{
    KDF_PKCS12 *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_pkcs12_cleanup(KDF_PKCS12 *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_pkcs12_free(void *vctx)
{
    KDF_PKCS12 *ctx = (KDF_PKCS12 *)vctx;

    if (ctx != NULL) {
        kdf_pkcs12_cleanup(ctx);
        OPENSSL_free(ctx);
    }
}

static void kdf_pkcs12_reset(void *vctx)
{
    KDF_PKCS12 *ctx = (KDF_PKCS12 *)vctx;
    void *provctx = ctx->provctx;

    kdf_pkcs12_cleanup(ctx);
    ctx->provctx = provctx;
}

static void *kdf_pkcs12_dup(void *vctx)
{
    const KDF_PKCS12 *src = (const KDF_PKCS12 *)vctx;
    KDF_PKCS12 *dest;

    dest = kdf_pkcs12_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;
        dest->id = src->id;
    }
    return dest;

 err:
    kdf_pkcs12_free(dest);
    return NULL;
}

static int pkcs12kdf_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_pkcs12_derive(void *vctx, unsigned char *key, size_t keylen,
                             const OSSL_PARAM params[])
{
    KDF_PKCS12 *ctx = (KDF_PKCS12 *)vctx;
    const EVP_MD *md;

    if (!ossl_prov_is_running() || !kdf_pkcs12_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 pkcs12kdf_derive(ctx->pass, ctx->pass_len, ctx->salt, ctx->salt_len,
                            ctx->id, ctx->iter, md, key, keylen);
}

/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef pkcs12_set_ctx_params_list
static const OSSL_PARAM pkcs12_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_int(OSSL_KDF_PARAM_PKCS12_ID, NULL),
    OSSL_PARAM_END
};
#endif

#ifndef pkcs12_set_ctx_params_st
struct pkcs12_set_ctx_params_st {
    OSSL_PARAM *digest;
    OSSL_PARAM *engine;
    OSSL_PARAM *iter;
    OSSL_PARAM *p12id;
    OSSL_PARAM *propq;
    OSSL_PARAM *pw;
    OSSL_PARAM *salt;
};
#endif

#ifndef pkcs12_set_ctx_params_decoder
static int pkcs12_set_ctx_params_decoder
    (const OSSL_PARAM *p, struct pkcs12_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 'i':
                switch(s[1]) {
                default:
                    break;
                case 'd':
                    switch(s[2]) {
                    default:
                        break;
                    case '\0':
                        if (ossl_unlikely(r->p12id != NULL)) {
                            ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
                                           "param %s is repeated", s);
                            return 0;
                        }
                        r->p12id = (OSSL_PARAM *)p;
                    }
                    break;
                case 't':
                    if (ossl_likely(strcmp("er", s + 2) == 0)) {
                        /* 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)) {
                        /* 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)) {
                        /* 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_pkcs12_set_ctx_params(void *vctx, const OSSL_PARAM params[])
{
    struct pkcs12_set_ctx_params_st p;
    KDF_PKCS12 *ctx = vctx;
    OSSL_LIB_CTX *provctx;

    if (ctx == NULL || !pkcs12_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.pw != NULL && !pkcs12kdf_set_membuf(&ctx->pass, &ctx->pass_len, p.pw))
        return 0;

    if (p.salt != NULL
            && !pkcs12kdf_set_membuf(&ctx->salt, &ctx->salt_len, p.salt))
        return 0;

    if (p.p12id != NULL && !OSSL_PARAM_get_int(p.p12id, &ctx->id))
        return 0;

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

static const OSSL_PARAM *kdf_pkcs12_settable_ctx_params(
        ossl_unused void *ctx, ossl_unused void *provctx)
{
    return pkcs12_set_ctx_params_list;
}

/* Machine generated by util/perl/OpenSSL/paramnames.pm */
#ifndef pkcs12_get_ctx_params_list
static const OSSL_PARAM pkcs12_get_ctx_params_list[] = {
    OSSL_PARAM_size_t(OSSL_KDF_PARAM_SIZE, NULL),
    OSSL_PARAM_END
};
#endif

#ifndef pkcs12_get_ctx_params_st
struct pkcs12_get_ctx_params_st {
    OSSL_PARAM *size;
};
#endif

#ifndef pkcs12_get_ctx_params_decoder
static int pkcs12_get_ctx_params_decoder
    (const OSSL_PARAM *p, struct pkcs12_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_pkcs12_get_ctx_params(void *vctx, OSSL_PARAM params[])
{
    struct pkcs12_get_ctx_params_st p;
    KDF_PKCS12 *ctx = vctx;

    if (ctx == NULL || !pkcs12_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_pkcs12_gettable_ctx_params(
        ossl_unused void *ctx, ossl_unused void *provctx)
{
    return pkcs12_get_ctx_params_list;
}

const OSSL_DISPATCH ossl_kdf_pkcs12_functions[] = {
    { OSSL_FUNC_KDF_NEWCTX, (void(*)(void))kdf_pkcs12_new },
    { OSSL_FUNC_KDF_DUPCTX, (void(*)(void))kdf_pkcs12_dup },
    { OSSL_FUNC_KDF_FREECTX, (void(*)(void))kdf_pkcs12_free },
    { OSSL_FUNC_KDF_RESET, (void(*)(void))kdf_pkcs12_reset },
    { OSSL_FUNC_KDF_DERIVE, (void(*)(void))kdf_pkcs12_derive },
    { OSSL_FUNC_KDF_SETTABLE_CTX_PARAMS,
      (void(*)(void))kdf_pkcs12_settable_ctx_params },
    { OSSL_FUNC_KDF_SET_CTX_PARAMS, (void(*)(void))kdf_pkcs12_set_ctx_params },
    { OSSL_FUNC_KDF_GETTABLE_CTX_PARAMS,
      (void(*)(void))kdf_pkcs12_gettable_ctx_params },
    { OSSL_FUNC_KDF_GET_CTX_PARAMS, (void(*)(void))kdf_pkcs12_get_ctx_params },
    OSSL_DISPATCH_END
};

Coverage Report

Created: 2025-08-25 06:30

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 1999-2023 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 <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 "crypto/evp.h"
23		#include "prov/provider_ctx.h"
24		#include "prov/providercommon.h"
25		#include "prov/implementations.h"
26		#include "prov/provider_util.h"
27
28		static OSSL_FUNC_kdf_newctx_fn kdf_pkcs12_new;
29		static OSSL_FUNC_kdf_dupctx_fn kdf_pkcs12_dup;
30		static OSSL_FUNC_kdf_freectx_fn kdf_pkcs12_free;
31		static OSSL_FUNC_kdf_reset_fn kdf_pkcs12_reset;
32		static OSSL_FUNC_kdf_derive_fn kdf_pkcs12_derive;
33		static OSSL_FUNC_kdf_settable_ctx_params_fn kdf_pkcs12_settable_ctx_params;
34		static OSSL_FUNC_kdf_set_ctx_params_fn kdf_pkcs12_set_ctx_params;
35		static OSSL_FUNC_kdf_gettable_ctx_params_fn kdf_pkcs12_gettable_ctx_params;
36		static OSSL_FUNC_kdf_get_ctx_params_fn kdf_pkcs12_get_ctx_params;
37
38		typedef struct {
39		void *provctx;
40		PROV_DIGEST digest;
41		unsigned char *pass;
42		size_t pass_len;
43		unsigned char *salt;
44		size_t salt_len;
45		uint64_t iter;
46		int id;
47		} KDF_PKCS12;
48
49		/* PKCS12 compatible key/IV generation */
50
51		static int pkcs12kdf_derive(const unsigned char *pass, size_t passlen,
52		const unsigned char *salt, size_t saltlen,
53		int id, uint64_t iter, const EVP_MD *md_type,
54		unsigned char *out, size_t n)
55	0	{
56	0	unsigned char B = NULL, D = NULL, I = NULL, p = NULL, *Ai = NULL;
57	0	size_t Slen, Plen, Ilen;
58	0	size_t i, j, k, u, v;
59	0	uint64_t iter_cnt;
60	0	int ret = 0, ui, vi;
61	0	EVP_MD_CTX *ctx = NULL;
62
63	0	ctx = EVP_MD_CTX_new();
64	0	if (ctx == NULL) {
65	0	ERR_raise(ERR_LIB_PROV, ERR_R_EVP_LIB);
66	0	goto end;
67	0	}
68	0	vi = EVP_MD_get_block_size(md_type);
69	0	ui = EVP_MD_get_size(md_type);
70	0	if (ui <= 0 \|\| vi <= 0) {
71	0	ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DIGEST_SIZE);
72	0	goto end;
73	0	}
74	0	u = (size_t)ui;
75	0	v = (size_t)vi;
76	0	D = OPENSSL_malloc(v);
77	0	Ai = OPENSSL_malloc(u);
78	0	B = OPENSSL_malloc(v + 1);
79	0	Slen = v * ((saltlen + v - 1) / v);
80	0	if (passlen != 0)
81	0	Plen = v * ((passlen + v - 1) / v);
82	0	else
83	0	Plen = 0;
84	0	Ilen = Slen + Plen;
85	0	I = OPENSSL_malloc(Ilen);
86	0	if (D == NULL \|\| Ai == NULL \|\| B == NULL \|\| I == NULL)
87	0	goto end;
88	0	for (i = 0; i < v; i++)
89	0	D[i] = id;
90	0	p = I;
91	0	for (i = 0; i < Slen; i++)
92	0	*p++ = salt[i % saltlen];
93	0	for (i = 0; i < Plen; i++)
94	0	*p++ = pass[i % passlen];
95	0	for (;;) {
96	0	if (!EVP_DigestInit_ex(ctx, md_type, NULL)
97	0	\|\| !EVP_DigestUpdate(ctx, D, v)
98	0	\|\| !EVP_DigestUpdate(ctx, I, Ilen)
99	0	\|\| !EVP_DigestFinal_ex(ctx, Ai, NULL))
100	0	goto end;
101	0	for (iter_cnt = 1; iter_cnt < iter; iter_cnt++) {
102	0	if (!EVP_DigestInit_ex(ctx, md_type, NULL)
103	0	\|\| !EVP_DigestUpdate(ctx, Ai, u)
104	0	\|\| !EVP_DigestFinal_ex(ctx, Ai, NULL))
105	0	goto end;
106	0	}
107	0	memcpy(out, Ai, n < u ? n : u);
108	0	if (u >= n) {
109	0	ret = 1;
110	0	break;
111	0	}
112	0	n -= u;
113	0	out += u;
114	0	for (j = 0; j < v; j++)
115	0	B[j] = Ai[j % u];
116	0	for (j = 0; j < Ilen; j += v) {
117	0	unsigned char *Ij = I + j;
118	0	uint16_t c = 1;
119
120		/* Work out Ij = Ij + B + 1 */
121	0	for (k = v; k > 0;) {
122	0	k--;
123	0	c += Ij[k] + B[k];
124	0	Ij[k] = (unsigned char)c;
125	0	c >>= 8;
126	0	}
127	0	}
128	0	}
129
130	0	end:
131	0	OPENSSL_free(Ai);
132	0	OPENSSL_free(B);
133	0	OPENSSL_free(D);
134	0	OPENSSL_free(I);
135	0	EVP_MD_CTX_free(ctx);
136	0	return ret;
137	0	}
138
139		static void kdf_pkcs12_new(void provctx)
140	0	{
141	0	KDF_PKCS12 *ctx;
142
143	0	if (!ossl_prov_is_running())
144	0	return NULL;
145
146	0	ctx = OPENSSL_zalloc(sizeof(*ctx));
147	0	if (ctx == NULL)
148	0	return NULL;
149	0	ctx->provctx = provctx;
150	0	return ctx;
151	0	}
152
153		static void kdf_pkcs12_cleanup(KDF_PKCS12 *ctx)
154	0	{
155	0	ossl_prov_digest_reset(&ctx->digest);
156	0	OPENSSL_free(ctx->salt);
157	0	OPENSSL_clear_free(ctx->pass, ctx->pass_len);
158	0	memset(ctx, 0, sizeof(*ctx));
159	0	}
160
161		static void kdf_pkcs12_free(void *vctx)
162	0	{
163	0	KDF_PKCS12 ctx = (KDF_PKCS12 )vctx;
164
165	0	if (ctx != NULL) {
166	0	kdf_pkcs12_cleanup(ctx);
167	0	OPENSSL_free(ctx);
168	0	}
169	0	}
170
171		static void kdf_pkcs12_reset(void *vctx)
172	0	{
173	0	KDF_PKCS12 ctx = (KDF_PKCS12 )vctx;
174	0	void *provctx = ctx->provctx;
175
176	0	kdf_pkcs12_cleanup(ctx);
177	0	ctx->provctx = provctx;
178	0	}
179
180		static void kdf_pkcs12_dup(void vctx)
181	0	{
182	0	const KDF_PKCS12 src = (const KDF_PKCS12 )vctx;
183	0	KDF_PKCS12 *dest;
184
185	0	dest = kdf_pkcs12_new(src->provctx);
186	0	if (dest != NULL) {
187	0	if (!ossl_prov_memdup(src->salt, src->salt_len,
188	0	&dest->salt, &dest->salt_len)
189	0	\|\| !ossl_prov_memdup(src->pass, src->pass_len,
190	0	&dest->pass , &dest->pass_len)
191	0	\|\| !ossl_prov_digest_copy(&dest->digest, &src->digest))
192	0	goto err;
193	0	dest->iter = src->iter;
194	0	dest->id = src->id;
195	0	}
196	0	return dest;
197
198	0	err:
199	0	kdf_pkcs12_free(dest);
200	0	return NULL;
201	0	}
202
203		static int pkcs12kdf_set_membuf(unsigned char *buffer, size_t buflen,
204		const OSSL_PARAM *p)
205	0	{
206	0	OPENSSL_clear_free(buffer, buflen);
207	0	*buffer = NULL;
208	0	*buflen = 0;
209
210	0	if (p->data_size == 0) {
211	0	if ((*buffer = OPENSSL_malloc(1)) == NULL)
212	0	return 0;
213	0	} else if (p->data != NULL) {
214	0	if (!OSSL_PARAM_get_octet_string(p, (void **)buffer, 0, buflen))
215	0	return 0;
216	0	}
217	0	return 1;
218	0	}
219
220		static int kdf_pkcs12_derive(void vctx, unsigned char key, size_t keylen,
221		const OSSL_PARAM params[])
222	0	{
223	0	KDF_PKCS12 ctx = (KDF_PKCS12 )vctx;
224	0	const EVP_MD *md;
225
226	0	if (!ossl_prov_is_running() \|\| !kdf_pkcs12_set_ctx_params(ctx, params))
227	0	return 0;
228
229	0	if (ctx->pass == NULL) {
230	0	ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_PASS);
231	0	return 0;
232	0	}
233
234	0	if (ctx->salt == NULL) {
235	0	ERR_raise(ERR_LIB_PROV, PROV_R_MISSING_SALT);
236	0	return 0;
237	0	}
238
239	0	md = ossl_prov_digest_md(&ctx->digest);
240	0	return pkcs12kdf_derive(ctx->pass, ctx->pass_len, ctx->salt, ctx->salt_len,
241	0	ctx->id, ctx->iter, md, key, keylen);
242	0	}
243
244		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
245		#ifndef pkcs12_set_ctx_params_list
246		static const OSSL_PARAM pkcs12_set_ctx_params_list[] = {
247		OSSL_PARAM_utf8_string(OSSL_KDF_PARAM_PROPERTIES, NULL, 0),
248		OSSL_PARAM_utf8_string(OSSL_KDF_PARAM_DIGEST, NULL, 0),
249		OSSL_PARAM_octet_string(OSSL_KDF_PARAM_PASSWORD, NULL, 0),
250		OSSL_PARAM_octet_string(OSSL_KDF_PARAM_SALT, NULL, 0),
251		OSSL_PARAM_uint64(OSSL_KDF_PARAM_ITER, NULL),
252		OSSL_PARAM_int(OSSL_KDF_PARAM_PKCS12_ID, NULL),
253		OSSL_PARAM_END
254		};
255		#endif
256
257		#ifndef pkcs12_set_ctx_params_st
258		struct pkcs12_set_ctx_params_st {
259		OSSL_PARAM *digest;
260		OSSL_PARAM *engine;
261		OSSL_PARAM *iter;
262		OSSL_PARAM *p12id;
263		OSSL_PARAM *propq;
264		OSSL_PARAM *pw;
265		OSSL_PARAM *salt;
266		};
267		#endif
268
269		#ifndef pkcs12_set_ctx_params_decoder
270		static int pkcs12_set_ctx_params_decoder
271		(const OSSL_PARAM p, struct pkcs12_set_ctx_params_st r)
272	0	{
273	0	const char *s;
274
275	0	memset(r, 0, sizeof(*r));
276	0	if (p != NULL)
277	0	for (; (s = p->key) != NULL; p++)
278	0	switch(s[0]) {
279	0	default:
280	0	break;
281	0	case 'd':
282	0	if (ossl_likely(strcmp("igest", s + 1) == 0)) {
283		/* KDF_PARAM_DIGEST */
284	0	if (ossl_unlikely(r->digest != NULL)) {
285	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
286	0	"param %s is repeated", s);
287	0	return 0;
288	0	}
289	0	r->digest = (OSSL_PARAM *)p;
290	0	}
291	0	break;
292	0	case 'e':
293	0	if (ossl_likely(strcmp("ngine", s + 1) == 0)) {
294		/* ALG_PARAM_ENGINE */
295	0	if (ossl_unlikely(r->engine != NULL)) {
296	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
297	0	"param %s is repeated", s);
298	0	return 0;
299	0	}
300	0	r->engine = (OSSL_PARAM *)p;
301	0	}
302	0	break;
303	0	case 'i':
304	0	switch(s[1]) {
305	0	default:
306	0	break;
307	0	case 'd':
308	0	switch(s[2]) {
309	0	default:
310	0	break;
311	0	case '\0':
312	0	if (ossl_unlikely(r->p12id != NULL)) {
313	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
314	0	"param %s is repeated", s);
315	0	return 0;
316	0	}
317	0	r->p12id = (OSSL_PARAM *)p;
318	0	}
319	0	break;
320	0	case 't':
321	0	if (ossl_likely(strcmp("er", s + 2) == 0)) {
322		/* KDF_PARAM_ITER */
323	0	if (ossl_unlikely(r->iter != NULL)) {
324	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
325	0	"param %s is repeated", s);
326	0	return 0;
327	0	}
328	0	r->iter = (OSSL_PARAM *)p;
329	0	}
330	0	}
331	0	break;
332	0	case 'p':
333	0	switch(s[1]) {
334	0	default:
335	0	break;
336	0	case 'a':
337	0	if (ossl_likely(strcmp("ss", s + 2) == 0)) {
338		/* KDF_PARAM_PASSWORD */
339	0	if (ossl_unlikely(r->pw != NULL)) {
340	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
341	0	"param %s is repeated", s);
342	0	return 0;
343	0	}
344	0	r->pw = (OSSL_PARAM *)p;
345	0	}
346	0	break;
347	0	case 'r':
348	0	if (ossl_likely(strcmp("operties", s + 2) == 0)) {
349		/* KDF_PARAM_PROPERTIES */
350	0	if (ossl_unlikely(r->propq != NULL)) {
351	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
352	0	"param %s is repeated", s);
353	0	return 0;
354	0	}
355	0	r->propq = (OSSL_PARAM *)p;
356	0	}
357	0	}
358	0	break;
359	0	case 's':
360	0	if (ossl_likely(strcmp("alt", s + 1) == 0)) {
361		/* KDF_PARAM_SALT */
362	0	if (ossl_unlikely(r->salt != NULL)) {
363	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
364	0	"param %s is repeated", s);
365	0	return 0;
366	0	}
367	0	r->salt = (OSSL_PARAM *)p;
368	0	}
369	0	}
370	0	return 1;
371	0	}
372		#endif
373		/* End of machine generated */
374
375		static int kdf_pkcs12_set_ctx_params(void *vctx, const OSSL_PARAM params[])
376	0	{
377	0	struct pkcs12_set_ctx_params_st p;
378	0	KDF_PKCS12 *ctx = vctx;
379	0	OSSL_LIB_CTX *provctx;
380
381	0	if (ctx == NULL \|\| !pkcs12_set_ctx_params_decoder(params, &p))
382	0	return 0;
383
384	0	provctx = PROV_LIBCTX_OF(ctx->provctx);
385
386	0	if (!ossl_prov_digest_load(&ctx->digest, p.digest,
387	0	p.propq, p.engine, provctx))
388	0	return 0;
389
390	0	if (p.pw != NULL && !pkcs12kdf_set_membuf(&ctx->pass, &ctx->pass_len, p.pw))
391	0	return 0;
392
393	0	if (p.salt != NULL
394	0	&& !pkcs12kdf_set_membuf(&ctx->salt, &ctx->salt_len, p.salt))
395	0	return 0;
396
397	0	if (p.p12id != NULL && !OSSL_PARAM_get_int(p.p12id, &ctx->id))
398	0	return 0;
399
400	0	if (p.iter != NULL && !OSSL_PARAM_get_uint64(p.iter, &ctx->iter))
401	0	return 0;
402	0	return 1;
403	0	}
404
405		static const OSSL_PARAM *kdf_pkcs12_settable_ctx_params(
406		ossl_unused void ctx, ossl_unused void provctx)
407	0	{
408	0	return pkcs12_set_ctx_params_list;
409	0	}
410
411		/* Machine generated by util/perl/OpenSSL/paramnames.pm */
412		#ifndef pkcs12_get_ctx_params_list
413		static const OSSL_PARAM pkcs12_get_ctx_params_list[] = {
414		OSSL_PARAM_size_t(OSSL_KDF_PARAM_SIZE, NULL),
415		OSSL_PARAM_END
416		};
417		#endif
418
419		#ifndef pkcs12_get_ctx_params_st
420		struct pkcs12_get_ctx_params_st {
421		OSSL_PARAM *size;
422		};
423		#endif
424
425		#ifndef pkcs12_get_ctx_params_decoder
426		static int pkcs12_get_ctx_params_decoder
427		(const OSSL_PARAM p, struct pkcs12_get_ctx_params_st r)
428	0	{
429	0	const char *s;
430
431	0	memset(r, 0, sizeof(*r));
432	0	if (p != NULL)
433	0	for (; (s = p->key) != NULL; p++)
434	0	if (ossl_likely(strcmp("size", s + 0) == 0)) {
435		/* KDF_PARAM_SIZE */
436	0	if (ossl_unlikely(r->size != NULL)) {
437	0	ERR_raise_data(ERR_LIB_PROV, PROV_R_REPEATED_PARAMETER,
438	0	"param %s is repeated", s);
439	0	return 0;
440	0	}
441	0	r->size = (OSSL_PARAM *)p;
442	0	}
443	0	return 1;
444	0	}
445		#endif
446		/* End of machine generated */
447
448		static int kdf_pkcs12_get_ctx_params(void *vctx, OSSL_PARAM params[])
449	0	{
450	0	struct pkcs12_get_ctx_params_st p;
451	0	KDF_PKCS12 *ctx = vctx;
452
453	0	if (ctx == NULL \|\| !pkcs12_get_ctx_params_decoder(params, &p))
454	0	return 0;
455
456	0	if (p.size != NULL && !OSSL_PARAM_set_size_t(p.size, SIZE_MAX))
457	0	return 0;
458	0	return 1;
459	0	}
460
461		static const OSSL_PARAM *kdf_pkcs12_gettable_ctx_params(
462		ossl_unused void ctx, ossl_unused void provctx)
463	0	{
464	0	return pkcs12_get_ctx_params_list;
465	0	}
466
467		const OSSL_DISPATCH ossl_kdf_pkcs12_functions[] = {
468		{ OSSL_FUNC_KDF_NEWCTX, (void(*)(void))kdf_pkcs12_new },
469		{ OSSL_FUNC_KDF_DUPCTX, (void(*)(void))kdf_pkcs12_dup },
470		{ OSSL_FUNC_KDF_FREECTX, (void(*)(void))kdf_pkcs12_free },
471		{ OSSL_FUNC_KDF_RESET, (void(*)(void))kdf_pkcs12_reset },
472		{ OSSL_FUNC_KDF_DERIVE, (void(*)(void))kdf_pkcs12_derive },
473		{ OSSL_FUNC_KDF_SETTABLE_CTX_PARAMS,
474		(void(*)(void))kdf_pkcs12_settable_ctx_params },
475		{ OSSL_FUNC_KDF_SET_CTX_PARAMS, (void(*)(void))kdf_pkcs12_set_ctx_params },
476		{ OSSL_FUNC_KDF_GETTABLE_CTX_PARAMS,
477		(void(*)(void))kdf_pkcs12_gettable_ctx_params },
478		{ OSSL_FUNC_KDF_GET_CTX_PARAMS, (void(*)(void))kdf_pkcs12_get_ctx_params },
479		OSSL_DISPATCH_END
480		};