/src/openssl/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)
        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: 2025-06-13 06:56

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	0	{
32	0	return ((a)->pkey_id - (b)->pkey_id);
33	0	}
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	0	{
40	0	int num = OSSL_NELEM(standard_methods);
41	0	if (app_methods)
42	0	num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
43	0	return num;
44	0	}
45
46		const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
47	0	{
48	0	int num = OSSL_NELEM(standard_methods);
49	0	if (idx < 0)
50	0	return NULL;
51	0	if (idx < num)
52	0	return standard_methods[idx];
53	0	idx -= num;
54	0	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
55	0	}
56
57		static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
58	0	{
59	0	EVP_PKEY_ASN1_METHOD tmp;
60	0	const EVP_PKEY_ASN1_METHOD t = &tmp, *ret;
61
62	0	tmp.pkey_id = type;
63	0	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	0	ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
70	0	if (ret == NULL \|\| *ret == NULL)
71	0	return NULL;
72	0	return *ret;
73	0	}
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	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	#ifndef OPENSSL_NO_ENGINE
93	0	ENGINE *e;
94		/* type will contain the final unaliased type */
95	0	e = ENGINE_get_pkey_asn1_meth_engine(type);
96	0	if (e) {
97	0	*pe = e;
98	0	return ENGINE_get_pkey_asn1_meth(e, type);
99	0	}
100	0	#endif
101	0	*pe = NULL;
102	0	}
103	0	return t;
104	0	}
105
106		const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find_str(ENGINE *pe,
107		const char *str, int len)
108	0	{
109	0	int i;
110	0	const EVP_PKEY_ASN1_METHOD *ameth = NULL;
111
112	0	if (len == -1)
113	0	len = strlen(str);
114	0	if (pe) {
115	0	#ifndef OPENSSL_NO_ENGINE
116	0	ENGINE *e;
117	0	ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
118	0	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	0	#endif
129	0	*pe = NULL;
130	0	}
131	0	for (i = EVP_PKEY_asn1_get_count(); i-- > 0; ) {
132	0	ameth = EVP_PKEY_asn1_get0(i);
133	0	if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
134	0	continue;
135	0	if ((int)strlen(ameth->pem_str) == len
136	0	&& OPENSSL_strncasecmp(ameth->pem_str, str, len) == 0)
137	0	return ameth;
138	0	}
139	0	return NULL;
140	0	}
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	0	{
200	0	if (!ameth)
201	0	return 0;
202	0	if (ppkey_id)
203	0	*ppkey_id = ameth->pkey_id;
204	0	if (ppkey_base_id)
205	0	*ppkey_base_id = ameth->pkey_base_id;
206	0	if (ppkey_flags)
207	0	*ppkey_flags = ameth->pkey_flags;
208	0	if (pinfo)
209	0	*pinfo = ameth->info;
210	0	if (ppem_str)
211	0	*ppem_str = ameth->pem_str;
212	0	return 1;
213	0	}
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	return NULL;
227
228	0	ameth->pkey_id = id;
229	0	ameth->pkey_base_id = id;
230	0	ameth->pkey_flags = flags \| ASN1_PKEY_DYNAMIC;
231
232	0	if (info) {
233	0	ameth->info = OPENSSL_strdup(info);
234	0	if (ameth->info == NULL)
235	0	goto err;
236	0	}
237
238	0	if (pem_str) {
239	0	ameth->pem_str = OPENSSL_strdup(pem_str);
240	0	if (ameth->pem_str == NULL)
241	0	goto err;
242	0	}
243
244	0	return ameth;
245
246	0	err:
247	0	EVP_PKEY_asn1_free(ameth);
248	0	return NULL;
249	0	}
250
251		void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
252		const EVP_PKEY_ASN1_METHOD *src)
253	0	{
254	0	int pkey_id = dst->pkey_id;
255	0	int pkey_base_id = dst->pkey_base_id;
256	0	unsigned long pkey_flags = dst->pkey_flags;
257	0	char *pem_str = dst->pem_str;
258	0	char *info = dst->info;
259
260	0	dst = src;
261
262		/* We only copy the function pointers so restore the other values */
263	0	dst->pkey_id = pkey_id;
264	0	dst->pkey_base_id = pkey_base_id;
265	0	dst->pkey_flags = pkey_flags;
266	0	dst->pem_str = pem_str;
267	0	dst->info = info;
268	0	}
269
270		void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
271	0	{
272	0	if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
273	0	OPENSSL_free(ameth->pem_str);
274	0	OPENSSL_free(ameth->info);
275	0	OPENSSL_free(ameth);
276	0	}
277	0	}
278
279		void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
280		int (pub_decode) (EVP_PKEY pk,
281		const X509_PUBKEY *pub),
282		int (pub_encode) (X509_PUBKEY pub,
283		const EVP_PKEY *pk),
284		int (pub_cmp) (const EVP_PKEY a,
285		const EVP_PKEY *b),
286		int (pub_print) (BIO out,
287		const EVP_PKEY *pkey,
288		int indent, ASN1_PCTX *pctx),
289		int (pkey_size) (const EVP_PKEY pk),
290		int (pkey_bits) (const EVP_PKEY pk))
291	0	{
292	0	ameth->pub_decode = pub_decode;
293	0	ameth->pub_encode = pub_encode;
294	0	ameth->pub_cmp = pub_cmp;
295	0	ameth->pub_print = pub_print;
296	0	ameth->pkey_size = pkey_size;
297	0	ameth->pkey_bits = pkey_bits;
298	0	}
299
300		void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
301		int (priv_decode) (EVP_PKEY pk,
302		const PKCS8_PRIV_KEY_INFO
303		*p8inf),
304		int (priv_encode) (PKCS8_PRIV_KEY_INFO p8,
305		const EVP_PKEY *pk),
306		int (priv_print) (BIO out,
307		const EVP_PKEY *pkey,
308		int indent,
309		ASN1_PCTX *pctx))
310	0	{
311	0	ameth->priv_decode = priv_decode;
312	0	ameth->priv_encode = priv_encode;
313	0	ameth->priv_print = priv_print;
314	0	}
315
316		void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
317		int (param_decode) (EVP_PKEY pkey,
318		const unsigned char **pder,
319		int derlen),
320		int (param_encode) (const EVP_PKEY pkey,
321		unsigned char **pder),
322		int (param_missing) (const EVP_PKEY pk),
323		int (param_copy) (EVP_PKEY to,
324		const EVP_PKEY *from),
325		int (param_cmp) (const EVP_PKEY a,
326		const EVP_PKEY *b),
327		int (param_print) (BIO out,
328		const EVP_PKEY *pkey,
329		int indent, ASN1_PCTX *pctx))
330	0	{
331	0	ameth->param_decode = param_decode;
332	0	ameth->param_encode = param_encode;
333	0	ameth->param_missing = param_missing;
334	0	ameth->param_copy = param_copy;
335	0	ameth->param_cmp = param_cmp;
336	0	ameth->param_print = param_print;
337	0	}
338
339		void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
340		void (pkey_free) (EVP_PKEY pkey))
341	0	{
342	0	ameth->pkey_free = pkey_free;
343	0	}
344
345		void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
346		int (pkey_ctrl) (EVP_PKEY pkey, int op,
347		long arg1, void *arg2))
348	0	{
349	0	ameth->pkey_ctrl = pkey_ctrl;
350	0	}
351
352		void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
353		int (*pkey_security_bits) (const EVP_PKEY
354		*pk))
355	0	{
356	0	ameth->pkey_security_bits = pkey_security_bits;
357	0	}
358
359		void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
360		int (item_verify) (EVP_MD_CTX ctx,
361		const ASN1_ITEM *it,
362		const void *data,
363		const X509_ALGOR *a,
364		const ASN1_BIT_STRING *sig,
365		EVP_PKEY *pkey),
366		int (item_sign) (EVP_MD_CTX ctx,
367		const ASN1_ITEM *it,
368		const void *data,
369		X509_ALGOR *alg1,
370		X509_ALGOR *alg2,
371		ASN1_BIT_STRING *sig))
372	0	{
373	0	ameth->item_sign = item_sign;
374	0	ameth->item_verify = item_verify;
375	0	}
376
377		void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
378		int (siginf_set) (X509_SIG_INFO siginf,
379		const X509_ALGOR *alg,
380		const ASN1_STRING *sig))
381	0	{
382	0	ameth->siginf_set = siginf_set;
383	0	}
384
385		void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
386		int (pkey_check) (const EVP_PKEY pk))
387	0	{
388	0	ameth->pkey_check = pkey_check;
389	0	}
390
391		void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
392		int (pkey_pub_check) (const EVP_PKEY pk))
393	0	{
394	0	ameth->pkey_public_check = pkey_pub_check;
395	0	}
396
397		void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
398		int (pkey_param_check) (const EVP_PKEY pk))
399	0	{
400	0	ameth->pkey_param_check = pkey_param_check;
401	0	}
402
403		void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
404		int (set_priv_key) (EVP_PKEY pk,
405		const unsigned char
406		*priv,
407		size_t len))
408	0	{
409	0	ameth->set_priv_key = set_priv_key;
410	0	}
411
412		void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
413		int (set_pub_key) (EVP_PKEY pk,
414		const unsigned char *pub,
415		size_t len))
416	0	{
417	0	ameth->set_pub_key = set_pub_key;
418	0	}
419
420		void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
421		int (get_priv_key) (const EVP_PKEY pk,
422		unsigned char *priv,
423		size_t *len))
424	0	{
425	0	ameth->get_priv_key = get_priv_key;
426	0	}
427
428		void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
429		int (get_pub_key) (const EVP_PKEY pk,
430		unsigned char *pub,
431		size_t *len))
432	0	{
433	0	ameth->get_pub_key = get_pub_key;
434	0	}