/src/openssl/crypto/asn1/ameth_lib.c

Source
/*
 * Copyright 2006-2025 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
 */

/*
 * We need to use some EVP_PKEY_asn1 deprecated APIs
 */
#include "internal/deprecated.h"

#include "internal/cryptlib.h"
#include <stdio.h>
#include <openssl/asn1t.h>
#include <openssl/x509.h>
#include "crypto/asn1.h"
#include "crypto/evp.h"

#include "standard_methods.h"

typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;

DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
                           const EVP_PKEY_ASN1_METHOD *, ameth);

static int ameth_cmp(const EVP_PKEY_ASN1_METHOD *const *a,
                     const EVP_PKEY_ASN1_METHOD *const *b)
{
    return ((*a)->pkey_id - (*b)->pkey_id);
}

IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
                             const EVP_PKEY_ASN1_METHOD *, ameth);

int EVP_PKEY_asn1_get_count(void)
{
    int num = OSSL_NELEM(standard_methods);
    if (app_methods)
        num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
    return num;
}

const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
{
    int num = OSSL_NELEM(standard_methods);
    if (idx < 0)
        return NULL;
    if (idx < num)
        return standard_methods[idx];
    idx -= num;
    return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
}

static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
{
    EVP_PKEY_ASN1_METHOD tmp;
    const EVP_PKEY_ASN1_METHOD *t = &tmp, **ret;

    tmp.pkey_id = type;
    if (app_methods) {
        int idx;
        idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp);
        if (idx >= 0)
            return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
    }
    ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
    if (ret == NULL || *ret == NULL)
        return NULL;
    return *ret;
}

/*
 * Return ASN1 method for desired `type`, returns NULL if no method is found for
 * `type`. If pe is not NULL, the function will set *pe to NULL to indicate no
 * engine is used.
 */
const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type)
{
    const EVP_PKEY_ASN1_METHOD *t;

    for (;;) {
        t = pkey_asn1_find(type);
        if (!t || !(t->pkey_flags & ASN1_PKEY_ALIAS))
            break;
        type = t->pkey_base_id;
    }
    if (pe) {
        *pe = NULL;
    }
    return t;
}

const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
                                                   const char *str, int len)
{
    int i;
    const EVP_PKEY_ASN1_METHOD *ameth = NULL;

    if (len == -1)
        len = (int)strlen(str);
    if (pe) {
        *pe = NULL;
    }
    for (i = EVP_PKEY_asn1_get_count(); i-- > 0; ) {
        ameth = EVP_PKEY_asn1_get0(i);
        if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
            continue;
        if ((int)strlen(ameth->pem_str) == len
            && OPENSSL_strncasecmp(ameth->pem_str, str, len) == 0)
            return ameth;
    }
    return NULL;
}

int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
{
    EVP_PKEY_ASN1_METHOD tmp = { 0, };

    /*
     * One of the following must be true:
     *
     * pem_str == NULL AND ASN1_PKEY_ALIAS is set
     * pem_str != NULL AND ASN1_PKEY_ALIAS is clear
     *
     * Anything else is an error and may lead to a corrupt ASN1 method table
     */
    if (!((ameth->pem_str == NULL
           && (ameth->pkey_flags & ASN1_PKEY_ALIAS) != 0)
          || (ameth->pem_str != NULL
              && (ameth->pkey_flags & ASN1_PKEY_ALIAS) == 0))) {
        ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_INVALID_ARGUMENT);
        return 0;
    }

    if (app_methods == NULL) {
        app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
        if (app_methods == NULL)
            return 0;
    }

    tmp.pkey_id = ameth->pkey_id;
    if (sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp) >= 0) {
        ERR_raise(ERR_LIB_EVP,
                  EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED);
        return 0;
    }

    if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
        return 0;
    sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
    return 1;
}

int EVP_PKEY_asn1_add_alias(int to, int from)
{
    EVP_PKEY_ASN1_METHOD *ameth;
    ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
    if (ameth == NULL)
        return 0;
    ameth->pkey_base_id = to;
    if (!EVP_PKEY_asn1_add0(ameth)) {
        EVP_PKEY_asn1_free(ameth);
        return 0;
    }
    return 1;
}

int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id,
                            int *ppkey_flags, const char **pinfo,
                            const char **ppem_str,
                            const EVP_PKEY_ASN1_METHOD *ameth)
{
    if (!ameth)
        return 0;
    if (ppkey_id)
        *ppkey_id = ameth->pkey_id;
    if (ppkey_base_id)
        *ppkey_base_id = ameth->pkey_base_id;
    if (ppkey_flags)
        *ppkey_flags = ameth->pkey_flags;
    if (pinfo)
        *pinfo = ameth->info;
    if (ppem_str)
        *ppem_str = ameth->pem_str;
    return 1;
}

const EVP_PKEY_ASN1_METHOD *EVP_PKEY_get0_asn1(const EVP_PKEY *pkey)
{
    return pkey->ameth;
}

EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
                                        const char *pem_str, const char *info)
{
    EVP_PKEY_ASN1_METHOD *ameth = OPENSSL_zalloc(sizeof(*ameth));

    if (ameth == NULL)
        return NULL;

    ameth->pkey_id = id;
    ameth->pkey_base_id = id;
    ameth->pkey_flags = flags | ASN1_PKEY_DYNAMIC;

    if (info) {
        ameth->info = OPENSSL_strdup(info);
        if (ameth->info == NULL)
            goto err;
    }

    if (pem_str) {
        ameth->pem_str = OPENSSL_strdup(pem_str);
        if (ameth->pem_str == NULL)
            goto err;
    }

    return ameth;

 err:
    EVP_PKEY_asn1_free(ameth);
    return NULL;
}

void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
                        const EVP_PKEY_ASN1_METHOD *src)
{
    int pkey_id = dst->pkey_id;
    int pkey_base_id = dst->pkey_base_id;
    unsigned long pkey_flags = dst->pkey_flags;
    char *pem_str = dst->pem_str;
    char *info = dst->info;

    *dst = *src;

    /* We only copy the function pointers so restore the other values */
    dst->pkey_id = pkey_id;
    dst->pkey_base_id = pkey_base_id;
    dst->pkey_flags = pkey_flags;
    dst->pem_str = pem_str;
    dst->info = info;
}

void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
{
    if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
        OPENSSL_free(ameth->pem_str);
        OPENSSL_free(ameth->info);
        OPENSSL_free(ameth);
    }
}

void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
                              int (*pub_decode) (EVP_PKEY *pk,
                                                 const X509_PUBKEY *pub),
                              int (*pub_encode) (X509_PUBKEY *pub,
                                                 const EVP_PKEY *pk),
                              int (*pub_cmp) (const EVP_PKEY *a,
                                              const EVP_PKEY *b),
                              int (*pub_print) (BIO *out,
                                                const EVP_PKEY *pkey,
                                                int indent, ASN1_PCTX *pctx),
                              int (*pkey_size) (const EVP_PKEY *pk),
                              int (*pkey_bits) (const EVP_PKEY *pk))
{
    ameth->pub_decode = pub_decode;
    ameth->pub_encode = pub_encode;
    ameth->pub_cmp = pub_cmp;
    ameth->pub_print = pub_print;
    ameth->pkey_size = pkey_size;
    ameth->pkey_bits = pkey_bits;
}

void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
                               int (*priv_decode) (EVP_PKEY *pk,
                                                   const PKCS8_PRIV_KEY_INFO
                                                   *p8inf),
                               int (*priv_encode) (PKCS8_PRIV_KEY_INFO *p8,
                                                   const EVP_PKEY *pk),
                               int (*priv_print) (BIO *out,
                                                  const EVP_PKEY *pkey,
                                                  int indent,
                                                  ASN1_PCTX *pctx))
{
    ameth->priv_decode = priv_decode;
    ameth->priv_encode = priv_encode;
    ameth->priv_print = priv_print;
}

void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
                             int (*param_decode) (EVP_PKEY *pkey,
                                                  const unsigned char **pder,
                                                  int derlen),
                             int (*param_encode) (const EVP_PKEY *pkey,
                                                  unsigned char **pder),
                             int (*param_missing) (const EVP_PKEY *pk),
                             int (*param_copy) (EVP_PKEY *to,
                                                const EVP_PKEY *from),
                             int (*param_cmp) (const EVP_PKEY *a,
                                               const EVP_PKEY *b),
                             int (*param_print) (BIO *out,
                                                 const EVP_PKEY *pkey,
                                                 int indent, ASN1_PCTX *pctx))
{
    ameth->param_decode = param_decode;
    ameth->param_encode = param_encode;
    ameth->param_missing = param_missing;
    ameth->param_copy = param_copy;
    ameth->param_cmp = param_cmp;
    ameth->param_print = param_print;
}

void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
                            void (*pkey_free) (EVP_PKEY *pkey))
{
    ameth->pkey_free = pkey_free;
}

void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
                            int (*pkey_ctrl) (EVP_PKEY *pkey, int op,
                                              long arg1, void *arg2))
{
    ameth->pkey_ctrl = pkey_ctrl;
}

void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
                                     int (*pkey_security_bits) (const EVP_PKEY
                                                                *pk))
{
    ameth->pkey_security_bits = pkey_security_bits;
}

void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
                            int (*item_verify) (EVP_MD_CTX *ctx,
                                                const ASN1_ITEM *it,
                                                const void *data,
                                                const X509_ALGOR *a,
                                                const ASN1_BIT_STRING *sig,
                                                EVP_PKEY *pkey),
                            int (*item_sign) (EVP_MD_CTX *ctx,
                                              const ASN1_ITEM *it,
                                              const void *data,
                                              X509_ALGOR *alg1,
                                              X509_ALGOR *alg2,
                                              ASN1_BIT_STRING *sig))
{
    ameth->item_sign = item_sign;
    ameth->item_verify = item_verify;
}

void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
                              int (*siginf_set) (X509_SIG_INFO *siginf,
                                                 const X509_ALGOR *alg,
                                                 const ASN1_STRING *sig))
{
    ameth->siginf_set = siginf_set;
}

void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
                             int (*pkey_check) (const EVP_PKEY *pk))
{
    ameth->pkey_check = pkey_check;
}

void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
                                    int (*pkey_pub_check) (const EVP_PKEY *pk))
{
    ameth->pkey_public_check = pkey_pub_check;
}

void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
                                   int (*pkey_param_check) (const EVP_PKEY *pk))
{
    ameth->pkey_param_check = pkey_param_check;
}

void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
                                    int (*set_priv_key) (EVP_PKEY *pk,
                                                         const unsigned char
                                                            *priv,
                                                         size_t len))
{
    ameth->set_priv_key = set_priv_key;
}

void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
                                   int (*set_pub_key) (EVP_PKEY *pk,
                                                       const unsigned char *pub,
                                                       size_t len))
{
    ameth->set_pub_key = set_pub_key;
}

void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
                                    int (*get_priv_key) (const EVP_PKEY *pk,
                                                         unsigned char *priv,
                                                         size_t *len))
{
    ameth->get_priv_key = get_priv_key;
}

void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
                                   int (*get_pub_key) (const EVP_PKEY *pk,
                                                       unsigned char *pub,
                                                       size_t *len))
{
    ameth->get_pub_key = get_pub_key;
}

Coverage Report

Created: 2025-12-08 06:22

Line	Count	Source
1		/*
2		* Copyright 2006-2025 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		* We need to use some EVP_PKEY_asn1 deprecated APIs
12		*/
13		#include "internal/deprecated.h"
14
15		#include "internal/cryptlib.h"
16		#include <stdio.h>
17		#include <openssl/asn1t.h>
18		#include <openssl/x509.h>
19		#include "crypto/asn1.h"
20		#include "crypto/evp.h"
21
22		#include "standard_methods.h"
23
24		typedef int sk_cmp_fn_type(const char const a, const char const b);
25		static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;
26
27		DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
28		const EVP_PKEY_ASN1_METHOD *, ameth);
29
30		static int ameth_cmp(const EVP_PKEY_ASN1_METHOD const a,
31		const EVP_PKEY_ASN1_METHOD const b)
32	0	{
33	0	return ((a)->pkey_id - (b)->pkey_id);
34	0	}
35
36		IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
37		const EVP_PKEY_ASN1_METHOD *, ameth);
38
39		int EVP_PKEY_asn1_get_count(void)
40	16	{
41	16	int num = OSSL_NELEM(standard_methods);
42	16	if (app_methods)
43	0	num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
44	16	return num;
45	16	}
46
47		const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
48	240	{
49	240	int num = OSSL_NELEM(standard_methods);
50	240	if (idx < 0)
51	0	return NULL;
52	240	if (idx < num)
53	240	return standard_methods[idx];
54	0	idx -= num;
55	0	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
56	240	}
57
58		static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
59	0	{
60	0	EVP_PKEY_ASN1_METHOD tmp;
61	0	const EVP_PKEY_ASN1_METHOD t = &tmp, *ret;
62
63	0	tmp.pkey_id = type;
64	0	if (app_methods) {
65	0	int idx;
66	0	idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp);
67	0	if (idx >= 0)
68	0	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
69	0	}
70	0	ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
71	0	if (ret == NULL \|\| *ret == NULL)
72	0	return NULL;
73	0	return *ret;
74	0	}
75
76		/*
77		* Return ASN1 method for desired `type`, returns NULL if no method is found for
78		* `type`. If pe is not NULL, the function will set *pe to NULL to indicate no
79		* engine is used.
80		*/
81		const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find(ENGINE *pe, int type)
82	0	{
83	0	const EVP_PKEY_ASN1_METHOD *t;
84
85	0	for (;;) {
86	0	t = pkey_asn1_find(type);
87	0	if (!t \|\| !(t->pkey_flags & ASN1_PKEY_ALIAS))
88	0	break;
89	0	type = t->pkey_base_id;
90	0	}
91	0	if (pe) {
92	0	*pe = NULL;
93	0	}
94	0	return t;
95	0	}
96
97		const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find_str(ENGINE *pe,
98		const char *str, int len)
99	0	{
100	0	int i;
101	0	const EVP_PKEY_ASN1_METHOD *ameth = NULL;
102
103	0	if (len == -1)
104	0	len = (int)strlen(str);
105	0	if (pe) {
106	0	*pe = NULL;
107	0	}
108	0	for (i = EVP_PKEY_asn1_get_count(); i-- > 0; ) {
109	0	ameth = EVP_PKEY_asn1_get0(i);
110	0	if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
111	0	continue;
112	0	if ((int)strlen(ameth->pem_str) == len
113	0	&& OPENSSL_strncasecmp(ameth->pem_str, str, len) == 0)
114	0	return ameth;
115	0	}
116	0	return NULL;
117	0	}
118
119		int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
120	0	{
121	0	EVP_PKEY_ASN1_METHOD tmp = { 0, };
122
123		/*
124		* One of the following must be true:
125		*
126		* pem_str == NULL AND ASN1_PKEY_ALIAS is set
127		* pem_str != NULL AND ASN1_PKEY_ALIAS is clear
128		*
129		* Anything else is an error and may lead to a corrupt ASN1 method table
130		*/
131	0	if (!((ameth->pem_str == NULL
132	0	&& (ameth->pkey_flags & ASN1_PKEY_ALIAS) != 0)
133	0	\|\| (ameth->pem_str != NULL
134	0	&& (ameth->pkey_flags & ASN1_PKEY_ALIAS) == 0))) {
135	0	ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_INVALID_ARGUMENT);
136	0	return 0;
137	0	}
138
139	0	if (app_methods == NULL) {
140	0	app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
141	0	if (app_methods == NULL)
142	0	return 0;
143	0	}
144
145	0	tmp.pkey_id = ameth->pkey_id;
146	0	if (sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp) >= 0) {
147	0	ERR_raise(ERR_LIB_EVP,
148	0	EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED);
149	0	return 0;
150	0	}
151
152	0	if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
153	0	return 0;
154	0	sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
155	0	return 1;
156	0	}
157
158		int EVP_PKEY_asn1_add_alias(int to, int from)
159	0	{
160	0	EVP_PKEY_ASN1_METHOD *ameth;
161	0	ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
162	0	if (ameth == NULL)
163	0	return 0;
164	0	ameth->pkey_base_id = to;
165	0	if (!EVP_PKEY_asn1_add0(ameth)) {
166	0	EVP_PKEY_asn1_free(ameth);
167	0	return 0;
168	0	}
169	0	return 1;
170	0	}
171
172		int EVP_PKEY_asn1_get0_info(int ppkey_id, int ppkey_base_id,
173		int ppkey_flags, const char *pinfo,
174		const char **ppem_str,
175		const EVP_PKEY_ASN1_METHOD *ameth)
176	240	{
177	240	if (!ameth)
178	0	return 0;
179	240	if (ppkey_id)
180	240	*ppkey_id = ameth->pkey_id;
181	240	if (ppkey_base_id)
182	240	*ppkey_base_id = ameth->pkey_base_id;
183	240	if (ppkey_flags)
184	240	*ppkey_flags = ameth->pkey_flags;
185	240	if (pinfo)
186	0	*pinfo = ameth->info;
187	240	if (ppem_str)
188	240	*ppem_str = ameth->pem_str;
189	240	return 1;
190	240	}
191
192		const EVP_PKEY_ASN1_METHOD EVP_PKEY_get0_asn1(const EVP_PKEY pkey)
193	0	{
194	0	return pkey->ameth;
195	0	}
196
197		EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
198		const char pem_str, const char info)
199	0	{
200	0	EVP_PKEY_ASN1_METHOD ameth = OPENSSL_zalloc(sizeof(ameth));
201
202	0	if (ameth == NULL)
203	0	return NULL;
204
205	0	ameth->pkey_id = id;
206	0	ameth->pkey_base_id = id;
207	0	ameth->pkey_flags = flags \| ASN1_PKEY_DYNAMIC;
208
209	0	if (info) {
210	0	ameth->info = OPENSSL_strdup(info);
211	0	if (ameth->info == NULL)
212	0	goto err;
213	0	}
214
215	0	if (pem_str) {
216	0	ameth->pem_str = OPENSSL_strdup(pem_str);
217	0	if (ameth->pem_str == NULL)
218	0	goto err;
219	0	}
220
221	0	return ameth;
222
223	0	err:
224	0	EVP_PKEY_asn1_free(ameth);
225	0	return NULL;
226	0	}
227
228		void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
229		const EVP_PKEY_ASN1_METHOD *src)
230	0	{
231	0	int pkey_id = dst->pkey_id;
232	0	int pkey_base_id = dst->pkey_base_id;
233	0	unsigned long pkey_flags = dst->pkey_flags;
234	0	char *pem_str = dst->pem_str;
235	0	char *info = dst->info;
236
237	0	dst = src;
238
239		/* We only copy the function pointers so restore the other values */
240	0	dst->pkey_id = pkey_id;
241	0	dst->pkey_base_id = pkey_base_id;
242	0	dst->pkey_flags = pkey_flags;
243	0	dst->pem_str = pem_str;
244	0	dst->info = info;
245	0	}
246
247		void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
248	0	{
249	0	if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
250	0	OPENSSL_free(ameth->pem_str);
251	0	OPENSSL_free(ameth->info);
252	0	OPENSSL_free(ameth);
253	0	}
254	0	}
255
256		void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
257		int (pub_decode) (EVP_PKEY pk,
258		const X509_PUBKEY *pub),
259		int (pub_encode) (X509_PUBKEY pub,
260		const EVP_PKEY *pk),
261		int (pub_cmp) (const EVP_PKEY a,
262		const EVP_PKEY *b),
263		int (pub_print) (BIO out,
264		const EVP_PKEY *pkey,
265		int indent, ASN1_PCTX *pctx),
266		int (pkey_size) (const EVP_PKEY pk),
267		int (pkey_bits) (const EVP_PKEY pk))
268	0	{
269	0	ameth->pub_decode = pub_decode;
270	0	ameth->pub_encode = pub_encode;
271	0	ameth->pub_cmp = pub_cmp;
272	0	ameth->pub_print = pub_print;
273	0	ameth->pkey_size = pkey_size;
274	0	ameth->pkey_bits = pkey_bits;
275	0	}
276
277		void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
278		int (priv_decode) (EVP_PKEY pk,
279		const PKCS8_PRIV_KEY_INFO
280		*p8inf),
281		int (priv_encode) (PKCS8_PRIV_KEY_INFO p8,
282		const EVP_PKEY *pk),
283		int (priv_print) (BIO out,
284		const EVP_PKEY *pkey,
285		int indent,
286		ASN1_PCTX *pctx))
287	0	{
288	0	ameth->priv_decode = priv_decode;
289	0	ameth->priv_encode = priv_encode;
290	0	ameth->priv_print = priv_print;
291	0	}
292
293		void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
294		int (param_decode) (EVP_PKEY pkey,
295		const unsigned char **pder,
296		int derlen),
297		int (param_encode) (const EVP_PKEY pkey,
298		unsigned char **pder),
299		int (param_missing) (const EVP_PKEY pk),
300		int (param_copy) (EVP_PKEY to,
301		const EVP_PKEY *from),
302		int (param_cmp) (const EVP_PKEY a,
303		const EVP_PKEY *b),
304		int (param_print) (BIO out,
305		const EVP_PKEY *pkey,
306		int indent, ASN1_PCTX *pctx))
307	0	{
308	0	ameth->param_decode = param_decode;
309	0	ameth->param_encode = param_encode;
310	0	ameth->param_missing = param_missing;
311	0	ameth->param_copy = param_copy;
312	0	ameth->param_cmp = param_cmp;
313	0	ameth->param_print = param_print;
314	0	}
315
316		void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
317		void (pkey_free) (EVP_PKEY pkey))
318	0	{
319	0	ameth->pkey_free = pkey_free;
320	0	}
321
322		void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
323		int (pkey_ctrl) (EVP_PKEY pkey, int op,
324		long arg1, void *arg2))
325	0	{
326	0	ameth->pkey_ctrl = pkey_ctrl;
327	0	}
328
329		void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
330		int (*pkey_security_bits) (const EVP_PKEY
331		*pk))
332	0	{
333	0	ameth->pkey_security_bits = pkey_security_bits;
334	0	}
335
336		void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
337		int (item_verify) (EVP_MD_CTX ctx,
338		const ASN1_ITEM *it,
339		const void *data,
340		const X509_ALGOR *a,
341		const ASN1_BIT_STRING *sig,
342		EVP_PKEY *pkey),
343		int (item_sign) (EVP_MD_CTX ctx,
344		const ASN1_ITEM *it,
345		const void *data,
346		X509_ALGOR *alg1,
347		X509_ALGOR *alg2,
348		ASN1_BIT_STRING *sig))
349	0	{
350	0	ameth->item_sign = item_sign;
351	0	ameth->item_verify = item_verify;
352	0	}
353
354		void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
355		int (siginf_set) (X509_SIG_INFO siginf,
356		const X509_ALGOR *alg,
357		const ASN1_STRING *sig))
358	0	{
359	0	ameth->siginf_set = siginf_set;
360	0	}
361
362		void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
363		int (pkey_check) (const EVP_PKEY pk))
364	0	{
365	0	ameth->pkey_check = pkey_check;
366	0	}
367
368		void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
369		int (pkey_pub_check) (const EVP_PKEY pk))
370	0	{
371	0	ameth->pkey_public_check = pkey_pub_check;
372	0	}
373
374		void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
375		int (pkey_param_check) (const EVP_PKEY pk))
376	0	{
377	0	ameth->pkey_param_check = pkey_param_check;
378	0	}
379
380		void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
381		int (set_priv_key) (EVP_PKEY pk,
382		const unsigned char
383		*priv,
384		size_t len))
385	0	{
386	0	ameth->set_priv_key = set_priv_key;
387	0	}
388
389		void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
390		int (set_pub_key) (EVP_PKEY pk,
391		const unsigned char *pub,
392		size_t len))
393	0	{
394	0	ameth->set_pub_key = set_pub_key;
395	0	}
396
397		void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
398		int (get_priv_key) (const EVP_PKEY pk,
399		unsigned char *priv,
400		size_t *len))
401	0	{
402	0	ameth->get_priv_key = get_priv_key;
403	0	}
404
405		void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
406		int (get_pub_key) (const EVP_PKEY pk,
407		unsigned char *pub,
408		size_t *len))
409	0	{
410	0	ameth->get_pub_key = get_pub_key;
411	0	}