/src/openssl36/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 engine deprecated APIs
 */
#include "internal/deprecated.h"

#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 = (int)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: 2025-12-31 06:58

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 engine 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 <openssl/engine.h>
20		#include "crypto/asn1.h"
21		#include "crypto/evp.h"
22
23		#include "standard_methods.h"
24
25		typedef int sk_cmp_fn_type(const char const a, const char const b);
26		static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;
27
28		DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
29		const EVP_PKEY_ASN1_METHOD *, ameth);
30
31		static int ameth_cmp(const EVP_PKEY_ASN1_METHOD const a,
32		const EVP_PKEY_ASN1_METHOD const b)
33	17.0M	{
34	17.0M	return ((a)->pkey_id - (b)->pkey_id);
35	17.0M	}
36
37		IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
38		const EVP_PKEY_ASN1_METHOD *, ameth);
39
40		int EVP_PKEY_asn1_get_count(void)
41	5.83M	{
42	5.83M	int num = OSSL_NELEM(standard_methods);
43	5.83M	if (app_methods)
44	0	num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
45	5.83M	return num;
46	5.83M	}
47
48		const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
49	77.3M	{
50	77.3M	int num = OSSL_NELEM(standard_methods);
51	77.3M	if (idx < 0)
52	0	return NULL;
53	77.3M	if (idx < num)
54	77.3M	return standard_methods[idx];
55	0	idx -= num;
56	0	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
57	77.3M	}
58
59		static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
60	5.55M	{
61	5.55M	EVP_PKEY_ASN1_METHOD tmp;
62	5.55M	const EVP_PKEY_ASN1_METHOD t = &tmp, *ret;
63
64	5.55M	tmp.pkey_id = type;
65	5.55M	if (app_methods) {
66	0	int idx;
67	0	idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp);
68	0	if (idx >= 0)
69	0	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
70	0	}
71	5.55M	ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
72	5.55M	if (ret == NULL \|\| *ret == NULL)
73	993k	return NULL;
74	4.56M	return *ret;
75	5.55M	}
76
77		/*
78		* Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also
79		* search through engines and set *pe to a functional reference to the engine
80		* implementing 'type' or NULL if no engine implements it.
81		*/
82
83		const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find(ENGINE *pe, int type)
84	4.55M	{
85	4.55M	const EVP_PKEY_ASN1_METHOD *t;
86
87	4.63M	for (;;) {
88	4.63M	t = pkey_asn1_find(type);
89	4.63M	if (!t \|\| !(t->pkey_flags & ASN1_PKEY_ALIAS))
90	4.55M	break;
91	81.4k	type = t->pkey_base_id;
92	81.4k	}
93	4.55M	if (pe) {
94	4.53M	#ifndef OPENSSL_NO_ENGINE
95	4.53M	ENGINE *e;
96		/* type will contain the final unaliased type */
97	4.53M	e = ENGINE_get_pkey_asn1_meth_engine(type);
98	4.53M	if (e) {
99	0	*pe = e;
100	0	return ENGINE_get_pkey_asn1_meth(e, type);
101	0	}
102	4.53M	#endif
103	4.53M	*pe = NULL;
104	4.53M	}
105	4.55M	return t;
106	4.55M	}
107
108		const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find_str(ENGINE *pe,
109		const char *str, int len)
110	4.78M	{
111	4.78M	int i;
112	4.78M	const EVP_PKEY_ASN1_METHOD *ameth = NULL;
113
114	4.78M	if (len == -1)
115	953k	len = (int)strlen(str);
116	4.78M	if (pe) {
117	4.78M	#ifndef OPENSSL_NO_ENGINE
118	4.78M	ENGINE *e;
119	4.78M	ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
120	4.78M	if (ameth) {
121		/*
122		* Convert structural into functional reference
123		*/
124	0	if (!ENGINE_init(e))
125	0	ameth = NULL;
126	0	ENGINE_free(e);
127	0	*pe = e;
128	0	return ameth;
129	0	}
130	4.78M	#endif
131	4.78M	*pe = NULL;
132	4.78M	}
133	67.0M	for (i = EVP_PKEY_asn1_get_count(); i-- > 0;) {
134	63.7M	ameth = EVP_PKEY_asn1_get0(i);
135	63.7M	if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
136	20.4M	continue;
137	43.3M	if ((int)strlen(ameth->pem_str) == len
138	2.50M	&& OPENSSL_strncasecmp(ameth->pem_str, str, len) == 0)
139	1.48M	return ameth;
140	43.3M	}
141	3.29M	return NULL;
142	4.78M	}
143
144		int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
145	0	{
146	0	EVP_PKEY_ASN1_METHOD tmp = {
147	0	0,
148	0	};
149
150		/*
151		* One of the following must be true:
152		*
153		* pem_str == NULL AND ASN1_PKEY_ALIAS is set
154		* pem_str != NULL AND ASN1_PKEY_ALIAS is clear
155		*
156		* Anything else is an error and may lead to a corrupt ASN1 method table
157		*/
158	0	if (!((ameth->pem_str == NULL
159	0	&& (ameth->pkey_flags & ASN1_PKEY_ALIAS) != 0)
160	0	\|\| (ameth->pem_str != NULL
161	0	&& (ameth->pkey_flags & ASN1_PKEY_ALIAS) == 0))) {
162	0	ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_INVALID_ARGUMENT);
163	0	return 0;
164	0	}
165
166	0	if (app_methods == NULL) {
167	0	app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
168	0	if (app_methods == NULL)
169	0	return 0;
170	0	}
171
172	0	tmp.pkey_id = ameth->pkey_id;
173	0	if (sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp) >= 0) {
174	0	ERR_raise(ERR_LIB_EVP,
175	0	EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED);
176	0	return 0;
177	0	}
178
179	0	if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
180	0	return 0;
181	0	sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
182	0	return 1;
183	0	}
184
185		int EVP_PKEY_asn1_add_alias(int to, int from)
186	0	{
187	0	EVP_PKEY_ASN1_METHOD *ameth;
188	0	ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
189	0	if (ameth == NULL)
190	0	return 0;
191	0	ameth->pkey_base_id = to;
192	0	if (!EVP_PKEY_asn1_add0(ameth)) {
193	0	EVP_PKEY_asn1_free(ameth);
194	0	return 0;
195	0	}
196	0	return 1;
197	0	}
198
199		int EVP_PKEY_asn1_get0_info(int ppkey_id, int ppkey_base_id,
200		int ppkey_flags, const char *pinfo,
201		const char **ppem_str,
202		const EVP_PKEY_ASN1_METHOD *ameth)
203	1.50k	{
204	1.50k	if (!ameth)
205	0	return 0;
206	1.50k	if (ppkey_id)
207	1.50k	*ppkey_id = ameth->pkey_id;
208	1.50k	if (ppkey_base_id)
209	1.50k	*ppkey_base_id = ameth->pkey_base_id;
210	1.50k	if (ppkey_flags)
211	1.50k	*ppkey_flags = ameth->pkey_flags;
212	1.50k	if (pinfo)
213	0	*pinfo = ameth->info;
214	1.50k	if (ppem_str)
215	1.50k	*ppem_str = ameth->pem_str;
216	1.50k	return 1;
217	1.50k	}
218
219		const EVP_PKEY_ASN1_METHOD EVP_PKEY_get0_asn1(const EVP_PKEY pkey)
220	0	{
221	0	return pkey->ameth;
222	0	}
223
224		EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
225		const char pem_str, const char info)
226	0	{
227	0	EVP_PKEY_ASN1_METHOD ameth = OPENSSL_zalloc(sizeof(ameth));
228
229	0	if (ameth == NULL)
230	0	return NULL;
231
232	0	ameth->pkey_id = id;
233	0	ameth->pkey_base_id = id;
234	0	ameth->pkey_flags = flags \| ASN1_PKEY_DYNAMIC;
235
236	0	if (info) {
237	0	ameth->info = OPENSSL_strdup(info);
238	0	if (ameth->info == NULL)
239	0	goto err;
240	0	}
241
242	0	if (pem_str) {
243	0	ameth->pem_str = OPENSSL_strdup(pem_str);
244	0	if (ameth->pem_str == NULL)
245	0	goto err;
246	0	}
247
248	0	return ameth;
249
250	0	err:
251	0	EVP_PKEY_asn1_free(ameth);
252	0	return NULL;
253	0	}
254
255		void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
256		const EVP_PKEY_ASN1_METHOD *src)
257	0	{
258	0	int pkey_id = dst->pkey_id;
259	0	int pkey_base_id = dst->pkey_base_id;
260	0	unsigned long pkey_flags = dst->pkey_flags;
261	0	char *pem_str = dst->pem_str;
262	0	char *info = dst->info;
263
264	0	dst = src;
265
266		/* We only copy the function pointers so restore the other values */
267	0	dst->pkey_id = pkey_id;
268	0	dst->pkey_base_id = pkey_base_id;
269	0	dst->pkey_flags = pkey_flags;
270	0	dst->pem_str = pem_str;
271	0	dst->info = info;
272	0	}
273
274		void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
275	0	{
276	0	if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
277	0	OPENSSL_free(ameth->pem_str);
278	0	OPENSSL_free(ameth->info);
279	0	OPENSSL_free(ameth);
280	0	}
281	0	}
282
283		void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
284		int (pub_decode)(EVP_PKEY pk,
285		const X509_PUBKEY *pub),
286		int (pub_encode)(X509_PUBKEY pub,
287		const EVP_PKEY *pk),
288		int (pub_cmp)(const EVP_PKEY a,
289		const EVP_PKEY *b),
290		int (pub_print)(BIO out,
291		const EVP_PKEY *pkey,
292		int indent, ASN1_PCTX *pctx),
293		int (pkey_size)(const EVP_PKEY pk),
294		int (pkey_bits)(const EVP_PKEY pk))
295	0	{
296	0	ameth->pub_decode = pub_decode;
297	0	ameth->pub_encode = pub_encode;
298	0	ameth->pub_cmp = pub_cmp;
299	0	ameth->pub_print = pub_print;
300	0	ameth->pkey_size = pkey_size;
301	0	ameth->pkey_bits = pkey_bits;
302	0	}
303
304		void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
305		int (priv_decode)(EVP_PKEY pk,
306		const PKCS8_PRIV_KEY_INFO
307		*p8inf),
308		int (priv_encode)(PKCS8_PRIV_KEY_INFO p8,
309		const EVP_PKEY *pk),
310		int (priv_print)(BIO out,
311		const EVP_PKEY *pkey,
312		int indent,
313		ASN1_PCTX *pctx))
314	0	{
315	0	ameth->priv_decode = priv_decode;
316	0	ameth->priv_encode = priv_encode;
317	0	ameth->priv_print = priv_print;
318	0	}
319
320		void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
321		int (param_decode)(EVP_PKEY pkey,
322		const unsigned char **pder,
323		int derlen),
324		int (param_encode)(const EVP_PKEY pkey,
325		unsigned char **pder),
326		int (param_missing)(const EVP_PKEY pk),
327		int (param_copy)(EVP_PKEY to,
328		const EVP_PKEY *from),
329		int (param_cmp)(const EVP_PKEY a,
330		const EVP_PKEY *b),
331		int (param_print)(BIO out,
332		const EVP_PKEY *pkey,
333		int indent, ASN1_PCTX *pctx))
334	0	{
335	0	ameth->param_decode = param_decode;
336	0	ameth->param_encode = param_encode;
337	0	ameth->param_missing = param_missing;
338	0	ameth->param_copy = param_copy;
339	0	ameth->param_cmp = param_cmp;
340	0	ameth->param_print = param_print;
341	0	}
342
343		void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
344		void (pkey_free)(EVP_PKEY pkey))
345	0	{
346	0	ameth->pkey_free = pkey_free;
347	0	}
348
349		void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
350		int (pkey_ctrl)(EVP_PKEY pkey, int op,
351		long arg1, void *arg2))
352	0	{
353	0	ameth->pkey_ctrl = pkey_ctrl;
354	0	}
355
356		void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
357		int (*pkey_security_bits)(const EVP_PKEY
358		*pk))
359	0	{
360	0	ameth->pkey_security_bits = pkey_security_bits;
361	0	}
362
363		void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
364		int (item_verify)(EVP_MD_CTX ctx,
365		const ASN1_ITEM *it,
366		const void *data,
367		const X509_ALGOR *a,
368		const ASN1_BIT_STRING *sig,
369		EVP_PKEY *pkey),
370		int (item_sign)(EVP_MD_CTX ctx,
371		const ASN1_ITEM *it,
372		const void *data,
373		X509_ALGOR *alg1,
374		X509_ALGOR *alg2,
375		ASN1_BIT_STRING *sig))
376	0	{
377	0	ameth->item_sign = item_sign;
378	0	ameth->item_verify = item_verify;
379	0	}
380
381		void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
382		int (siginf_set)(X509_SIG_INFO siginf,
383		const X509_ALGOR *alg,
384		const ASN1_STRING *sig))
385	0	{
386	0	ameth->siginf_set = siginf_set;
387	0	}
388
389		void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
390		int (pkey_check)(const EVP_PKEY pk))
391	0	{
392	0	ameth->pkey_check = pkey_check;
393	0	}
394
395		void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
396		int (pkey_pub_check)(const EVP_PKEY pk))
397	0	{
398	0	ameth->pkey_public_check = pkey_pub_check;
399	0	}
400
401		void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
402		int (pkey_param_check)(const EVP_PKEY pk))
403	0	{
404	0	ameth->pkey_param_check = pkey_param_check;
405	0	}
406
407		void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
408		int (set_priv_key)(EVP_PKEY pk,
409		const unsigned char
410		*priv,
411		size_t len))
412	0	{
413	0	ameth->set_priv_key = set_priv_key;
414	0	}
415
416		void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
417		int (set_pub_key)(EVP_PKEY pk,
418		const unsigned char *pub,
419		size_t len))
420	0	{
421	0	ameth->set_pub_key = set_pub_key;
422	0	}
423
424		void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
425		int (get_priv_key)(const EVP_PKEY pk,
426		unsigned char *priv,
427		size_t *len))
428	0	{
429	0	ameth->get_priv_key = get_priv_key;
430	0	}
431
432		void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
433		int (get_pub_key)(const EVP_PKEY pk,
434		unsigned char *pub,
435		size_t *len))
436	0	{
437	0	ameth->get_pub_key = get_pub_key;
438	0	}