/src/openssl31/crypto/asn1/ameth_lib.c

Source (jump to first uncovered line)
/*
 * Copyright 2006-2022 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 engine deprecated APIs */
#define OPENSSL_SUPPRESS_DEPRECATED

#include "internal/cryptlib.h"
#include <stdio.h>
#include <openssl/asn1t.h>
#include <openssl/x509.h>
#include <openssl/engine.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;
}

/*
 * Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also
 * search through engines and set *pe to a functional reference to the engine
 * implementing 'type' or NULL if no engine implements it.
 */

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) {
#ifndef OPENSSL_NO_ENGINE
        ENGINE *e;
        /* type will contain the final unaliased type */
        e = ENGINE_get_pkey_asn1_meth_engine(type);
        if (e) {
            *pe = e;
            return ENGINE_get_pkey_asn1_meth(e, type);
        }
#endif
        *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 = strlen(str);
    if (pe) {
#ifndef OPENSSL_NO_ENGINE
        ENGINE *e;
        ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
        if (ameth) {
            /*
             * Convert structural into functional reference
             */
            if (!ENGINE_init(e))
                ameth = NULL;
            ENGINE_free(e);
            *pe = e;
            return ameth;
        }
#endif
        *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) {
        ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
        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);
    ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
    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: 2025-06-13 06:58

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2006-2022 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		/* We need to use some engine deprecated APIs */
11		#define OPENSSL_SUPPRESS_DEPRECATED
12
13		#include "internal/cryptlib.h"
14		#include <stdio.h>
15		#include <openssl/asn1t.h>
16		#include <openssl/x509.h>
17		#include <openssl/engine.h>
18		#include "crypto/asn1.h"
19		#include "crypto/evp.h"
20
21		#include "standard_methods.h"
22
23		typedef int sk_cmp_fn_type(const char const a, const char const b);
24		static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;
25
26		DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
27		const EVP_PKEY_ASN1_METHOD *, ameth);
28
29		static int ameth_cmp(const EVP_PKEY_ASN1_METHOD const a,
30		const EVP_PKEY_ASN1_METHOD const b)
31	16.7M	{
32	16.7M	return ((a)->pkey_id - (b)->pkey_id);
33	16.7M	}
34
35		IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
36		const EVP_PKEY_ASN1_METHOD *, ameth);
37
38		int EVP_PKEY_asn1_get_count(void)
39	3.58M	{
40	3.58M	int num = OSSL_NELEM(standard_methods);
41	3.58M	if (app_methods)
42	0	num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
43	3.58M	return num;
44	3.58M	}
45
46		const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
47	48.0M	{
48	48.0M	int num = OSSL_NELEM(standard_methods);
49	48.0M	if (idx < 0)
50	0	return NULL;
51	48.0M	if (idx < num)
52	48.0M	return standard_methods[idx];
53	0	idx -= num;
54	0	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
55	48.0M	}
56
57		static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
58	5.00M	{
59	5.00M	EVP_PKEY_ASN1_METHOD tmp;
60	5.00M	const EVP_PKEY_ASN1_METHOD t = &tmp, *ret;
61
62	5.00M	tmp.pkey_id = type;
63	5.00M	if (app_methods) {
64	0	int idx;
65	0	idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp);
66	0	if (idx >= 0)
67	0	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
68	0	}
69	5.00M	ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
70	5.00M	if (ret == NULL \|\| *ret == NULL)
71	1.15M	return NULL;
72	3.84M	return *ret;
73	5.00M	}
74
75		/*
76		* Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also
77		* search through engines and set *pe to a functional reference to the engine
78		* implementing 'type' or NULL if no engine implements it.
79		*/
80
81		const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find(ENGINE *pe, int type)
82	4.76M	{
83	4.76M	const EVP_PKEY_ASN1_METHOD *t;
84
85	5.00M	for (;;) {
86	5.00M	t = pkey_asn1_find(type);
87	5.00M	if (!t \|\| !(t->pkey_flags & ASN1_PKEY_ALIAS))
88	4.76M	break;
89	238k	type = t->pkey_base_id;
90	238k	}
91	4.76M	if (pe) {
92	4.75M	#ifndef OPENSSL_NO_ENGINE
93	4.75M	ENGINE *e;
94		/* type will contain the final unaliased type */
95	4.75M	e = ENGINE_get_pkey_asn1_meth_engine(type);
96	4.75M	if (e) {
97	0	*pe = e;
98	0	return ENGINE_get_pkey_asn1_meth(e, type);
99	0	}
100	4.75M	#endif
101	4.75M	*pe = NULL;
102	4.75M	}
103	4.76M	return t;
104	4.76M	}
105
106		const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find_str(ENGINE *pe,
107		const char *str, int len)
108	3.58M	{
109	3.58M	int i;
110	3.58M	const EVP_PKEY_ASN1_METHOD *ameth = NULL;
111
112	3.58M	if (len == -1)
113	562k	len = strlen(str);
114	3.58M	if (pe) {
115	3.58M	#ifndef OPENSSL_NO_ENGINE
116	3.58M	ENGINE *e;
117	3.58M	ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
118	3.58M	if (ameth) {
119		/*
120		* Convert structural into functional reference
121		*/
122	0	if (!ENGINE_init(e))
123	0	ameth = NULL;
124	0	ENGINE_free(e);
125	0	*pe = e;
126	0	return ameth;
127	0	}
128	3.58M	#endif
129	3.58M	*pe = NULL;
130	3.58M	}
131	50.4M	for (i = EVP_PKEY_asn1_get_count(); i-- > 0; ) {
132	48.0M	ameth = EVP_PKEY_asn1_get0(i);
133	48.0M	if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
134	15.8M	continue;
135	32.2M	if ((int)strlen(ameth->pem_str) == len
136	32.2M	&& OPENSSL_strncasecmp(ameth->pem_str, str, len) == 0)
137	1.14M	return ameth;
138	32.2M	}
139	2.43M	return NULL;
140	3.58M	}
141
142		int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
143	0	{
144	0	EVP_PKEY_ASN1_METHOD tmp = { 0, };
145
146		/*
147		* One of the following must be true:
148		*
149		* pem_str == NULL AND ASN1_PKEY_ALIAS is set
150		* pem_str != NULL AND ASN1_PKEY_ALIAS is clear
151		*
152		* Anything else is an error and may lead to a corrupt ASN1 method table
153		*/
154	0	if (!((ameth->pem_str == NULL
155	0	&& (ameth->pkey_flags & ASN1_PKEY_ALIAS) != 0)
156	0	\|\| (ameth->pem_str != NULL
157	0	&& (ameth->pkey_flags & ASN1_PKEY_ALIAS) == 0))) {
158	0	ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_INVALID_ARGUMENT);
159	0	return 0;
160	0	}
161
162	0	if (app_methods == NULL) {
163	0	app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
164	0	if (app_methods == NULL)
165	0	return 0;
166	0	}
167
168	0	tmp.pkey_id = ameth->pkey_id;
169	0	if (sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp) >= 0) {
170	0	ERR_raise(ERR_LIB_EVP,
171	0	EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED);
172	0	return 0;
173	0	}
174
175	0	if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
176	0	return 0;
177	0	sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
178	0	return 1;
179	0	}
180
181		int EVP_PKEY_asn1_add_alias(int to, int from)
182	0	{
183	0	EVP_PKEY_ASN1_METHOD *ameth;
184	0	ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
185	0	if (ameth == NULL)
186	0	return 0;
187	0	ameth->pkey_base_id = to;
188	0	if (!EVP_PKEY_asn1_add0(ameth)) {
189	0	EVP_PKEY_asn1_free(ameth);
190	0	return 0;
191	0	}
192	0	return 1;
193	0	}
194
195		int EVP_PKEY_asn1_get0_info(int ppkey_id, int ppkey_base_id,
196		int ppkey_flags, const char *pinfo,
197		const char **ppem_str,
198		const EVP_PKEY_ASN1_METHOD *ameth)
199	699	{
200	699	if (!ameth)
201	0	return 0;
202	699	if (ppkey_id)
203	699	*ppkey_id = ameth->pkey_id;
204	699	if (ppkey_base_id)
205	699	*ppkey_base_id = ameth->pkey_base_id;
206	699	if (ppkey_flags)
207	699	*ppkey_flags = ameth->pkey_flags;
208	699	if (pinfo)
209	0	*pinfo = ameth->info;
210	699	if (ppem_str)
211	699	*ppem_str = ameth->pem_str;
212	699	return 1;
213	699	}
214
215		const EVP_PKEY_ASN1_METHOD EVP_PKEY_get0_asn1(const EVP_PKEY pkey)
216	0	{
217	0	return pkey->ameth;
218	0	}
219
220		EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
221		const char pem_str, const char info)
222	0	{
223	0	EVP_PKEY_ASN1_METHOD ameth = OPENSSL_zalloc(sizeof(ameth));
224
225	0	if (ameth == NULL) {
226	0	ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
227	0	return NULL;
228	0	}
229
230	0	ameth->pkey_id = id;
231	0	ameth->pkey_base_id = id;
232	0	ameth->pkey_flags = flags \| ASN1_PKEY_DYNAMIC;
233
234	0	if (info) {
235	0	ameth->info = OPENSSL_strdup(info);
236	0	if (ameth->info == NULL)
237	0	goto err;
238	0	}
239
240	0	if (pem_str) {
241	0	ameth->pem_str = OPENSSL_strdup(pem_str);
242	0	if (ameth->pem_str == NULL)
243	0	goto err;
244	0	}
245
246	0	return ameth;
247
248	0	err:
249	0	EVP_PKEY_asn1_free(ameth);
250	0	ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
251	0	return NULL;
252	0	}
253
254		void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
255		const EVP_PKEY_ASN1_METHOD *src)
256	0	{
257	0	int pkey_id = dst->pkey_id;
258	0	int pkey_base_id = dst->pkey_base_id;
259	0	unsigned long pkey_flags = dst->pkey_flags;
260	0	char *pem_str = dst->pem_str;
261	0	char *info = dst->info;
262
263	0	dst = src;
264
265		/* We only copy the function pointers so restore the other values */
266	0	dst->pkey_id = pkey_id;
267	0	dst->pkey_base_id = pkey_base_id;
268	0	dst->pkey_flags = pkey_flags;
269	0	dst->pem_str = pem_str;
270	0	dst->info = info;
271	0	}
272
273		void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
274	0	{
275	0	if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
276	0	OPENSSL_free(ameth->pem_str);
277	0	OPENSSL_free(ameth->info);
278	0	OPENSSL_free(ameth);
279	0	}
280	0	}
281
282		void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
283		int (pub_decode) (EVP_PKEY pk,
284		const X509_PUBKEY *pub),
285		int (pub_encode) (X509_PUBKEY pub,
286		const EVP_PKEY *pk),
287		int (pub_cmp) (const EVP_PKEY a,
288		const EVP_PKEY *b),
289		int (pub_print) (BIO out,
290		const EVP_PKEY *pkey,
291		int indent, ASN1_PCTX *pctx),
292		int (pkey_size) (const EVP_PKEY pk),
293		int (pkey_bits) (const EVP_PKEY pk))
294	0	{
295	0	ameth->pub_decode = pub_decode;
296	0	ameth->pub_encode = pub_encode;
297	0	ameth->pub_cmp = pub_cmp;
298	0	ameth->pub_print = pub_print;
299	0	ameth->pkey_size = pkey_size;
300	0	ameth->pkey_bits = pkey_bits;
301	0	}
302
303		void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
304		int (priv_decode) (EVP_PKEY pk,
305		const PKCS8_PRIV_KEY_INFO
306		*p8inf),
307		int (priv_encode) (PKCS8_PRIV_KEY_INFO p8,
308		const EVP_PKEY *pk),
309		int (priv_print) (BIO out,
310		const EVP_PKEY *pkey,
311		int indent,
312		ASN1_PCTX *pctx))
313	0	{
314	0	ameth->priv_decode = priv_decode;
315	0	ameth->priv_encode = priv_encode;
316	0	ameth->priv_print = priv_print;
317	0	}
318
319		void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
320		int (param_decode) (EVP_PKEY pkey,
321		const unsigned char **pder,
322		int derlen),
323		int (param_encode) (const EVP_PKEY pkey,
324		unsigned char **pder),
325		int (param_missing) (const EVP_PKEY pk),
326		int (param_copy) (EVP_PKEY to,
327		const EVP_PKEY *from),
328		int (param_cmp) (const EVP_PKEY a,
329		const EVP_PKEY *b),
330		int (param_print) (BIO out,
331		const EVP_PKEY *pkey,
332		int indent, ASN1_PCTX *pctx))
333	0	{
334	0	ameth->param_decode = param_decode;
335	0	ameth->param_encode = param_encode;
336	0	ameth->param_missing = param_missing;
337	0	ameth->param_copy = param_copy;
338	0	ameth->param_cmp = param_cmp;
339	0	ameth->param_print = param_print;
340	0	}
341
342		void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
343		void (pkey_free) (EVP_PKEY pkey))
344	0	{
345	0	ameth->pkey_free = pkey_free;
346	0	}
347
348		void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
349		int (pkey_ctrl) (EVP_PKEY pkey, int op,
350		long arg1, void *arg2))
351	0	{
352	0	ameth->pkey_ctrl = pkey_ctrl;
353	0	}
354
355		void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
356		int (*pkey_security_bits) (const EVP_PKEY
357		*pk))
358	0	{
359	0	ameth->pkey_security_bits = pkey_security_bits;
360	0	}
361
362		void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
363		int (item_verify) (EVP_MD_CTX ctx,
364		const ASN1_ITEM *it,
365		const void *data,
366		const X509_ALGOR *a,
367		const ASN1_BIT_STRING *sig,
368		EVP_PKEY *pkey),
369		int (item_sign) (EVP_MD_CTX ctx,
370		const ASN1_ITEM *it,
371		const void *data,
372		X509_ALGOR *alg1,
373		X509_ALGOR *alg2,
374		ASN1_BIT_STRING *sig))
375	0	{
376	0	ameth->item_sign = item_sign;
377	0	ameth->item_verify = item_verify;
378	0	}
379
380		void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
381		int (siginf_set) (X509_SIG_INFO siginf,
382		const X509_ALGOR *alg,
383		const ASN1_STRING *sig))
384	0	{
385	0	ameth->siginf_set = siginf_set;
386	0	}
387
388		void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
389		int (pkey_check) (const EVP_PKEY pk))
390	0	{
391	0	ameth->pkey_check = pkey_check;
392	0	}
393
394		void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
395		int (pkey_pub_check) (const EVP_PKEY pk))
396	0	{
397	0	ameth->pkey_public_check = pkey_pub_check;
398	0	}
399
400		void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
401		int (pkey_param_check) (const EVP_PKEY pk))
402	0	{
403	0	ameth->pkey_param_check = pkey_param_check;
404	0	}
405
406		void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
407		int (set_priv_key) (EVP_PKEY pk,
408		const unsigned char
409		*priv,
410		size_t len))
411	0	{
412	0	ameth->set_priv_key = set_priv_key;
413	0	}
414
415		void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
416		int (set_pub_key) (EVP_PKEY pk,
417		const unsigned char *pub,
418		size_t len))
419	0	{
420	0	ameth->set_pub_key = set_pub_key;
421	0	}
422
423		void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
424		int (get_priv_key) (const EVP_PKEY pk,
425		unsigned char *priv,
426		size_t *len))
427	0	{
428	0	ameth->get_priv_key = get_priv_key;
429	0	}
430
431		void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
432		int (get_pub_key) (const EVP_PKEY pk,
433		unsigned char *pub,
434		size_t *len))
435	0	{
436	0	ameth->get_pub_key = get_pub_key;
437	0	}