/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
 */
#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: 2025-07-23 06:08

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		/*
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	0	{
34	0	return ((a)->pkey_id - (b)->pkey_id);
35	0	}
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	1	{
42	1	int num = OSSL_NELEM(standard_methods);
43	1	if (app_methods)
44	0	num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
45	1	return num;
46	1	}
47
48		const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
49	15	{
50	15	int num = OSSL_NELEM(standard_methods);
51	15	if (idx < 0)
52	0	return NULL;
53	15	if (idx < num)
54	15	return standard_methods[idx];
55	0	idx -= num;
56	0	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
57	15	}
58
59		static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
60	0	{
61	0	EVP_PKEY_ASN1_METHOD tmp;
62	0	const EVP_PKEY_ASN1_METHOD t = &tmp, *ret;
63
64	0	tmp.pkey_id = type;
65	0	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	0	ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
72	0	if (ret == NULL \|\| *ret == NULL)
73	0	return NULL;
74	0	return *ret;
75	0	}
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	0	{
85	0	const EVP_PKEY_ASN1_METHOD *t;
86
87	0	for (;;) {
88	0	t = pkey_asn1_find(type);
89	0	if (!t \|\| !(t->pkey_flags & ASN1_PKEY_ALIAS))
90	0	break;
91	0	type = t->pkey_base_id;
92	0	}
93	0	if (pe) {
94	0	#ifndef OPENSSL_NO_ENGINE
95	0	ENGINE *e;
96		/* type will contain the final unaliased type */
97	0	e = ENGINE_get_pkey_asn1_meth_engine(type);
98	0	if (e) {
99	0	*pe = e;
100	0	return ENGINE_get_pkey_asn1_meth(e, type);
101	0	}
102	0	#endif
103	0	*pe = NULL;
104	0	}
105	0	return t;
106	0	}
107
108		const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find_str(ENGINE *pe,
109		const char *str, int len)
110	0	{
111	0	int i;
112	0	const EVP_PKEY_ASN1_METHOD *ameth = NULL;
113
114	0	if (len == -1)
115	0	len = (int)strlen(str);
116	0	if (pe) {
117	0	#ifndef OPENSSL_NO_ENGINE
118	0	ENGINE *e;
119	0	ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
120	0	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	0	#endif
131	0	*pe = NULL;
132	0	}
133	0	for (i = EVP_PKEY_asn1_get_count(); i-- > 0; ) {
134	0	ameth = EVP_PKEY_asn1_get0(i);
135	0	if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
136	0	continue;
137	0	if ((int)strlen(ameth->pem_str) == len
138	0	&& OPENSSL_strncasecmp(ameth->pem_str, str, len) == 0)
139	0	return ameth;
140	0	}
141	0	return NULL;
142	0	}
143
144		int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
145	0	{
146	0	EVP_PKEY_ASN1_METHOD tmp = { 0, };
147
148		/*
149		* One of the following must be true:
150		*
151		* pem_str == NULL AND ASN1_PKEY_ALIAS is set
152		* pem_str != NULL AND ASN1_PKEY_ALIAS is clear
153		*
154		* Anything else is an error and may lead to a corrupt ASN1 method table
155		*/
156	0	if (!((ameth->pem_str == NULL
157	0	&& (ameth->pkey_flags & ASN1_PKEY_ALIAS) != 0)
158	0	\|\| (ameth->pem_str != NULL
159	0	&& (ameth->pkey_flags & ASN1_PKEY_ALIAS) == 0))) {
160	0	ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_INVALID_ARGUMENT);
161	0	return 0;
162	0	}
163
164	0	if (app_methods == NULL) {
165	0	app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
166	0	if (app_methods == NULL)
167	0	return 0;
168	0	}
169
170	0	tmp.pkey_id = ameth->pkey_id;
171	0	if (sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp) >= 0) {
172	0	ERR_raise(ERR_LIB_EVP,
173	0	EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED);
174	0	return 0;
175	0	}
176
177	0	if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
178	0	return 0;
179	0	sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
180	0	return 1;
181	0	}
182
183		int EVP_PKEY_asn1_add_alias(int to, int from)
184	0	{
185	0	EVP_PKEY_ASN1_METHOD *ameth;
186	0	ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
187	0	if (ameth == NULL)
188	0	return 0;
189	0	ameth->pkey_base_id = to;
190	0	if (!EVP_PKEY_asn1_add0(ameth)) {
191	0	EVP_PKEY_asn1_free(ameth);
192	0	return 0;
193	0	}
194	0	return 1;
195	0	}
196
197		int EVP_PKEY_asn1_get0_info(int ppkey_id, int ppkey_base_id,
198		int ppkey_flags, const char *pinfo,
199		const char **ppem_str,
200		const EVP_PKEY_ASN1_METHOD *ameth)
201	15	{
202	15	if (!ameth)
203	0	return 0;
204	15	if (ppkey_id)
205	15	*ppkey_id = ameth->pkey_id;
206	15	if (ppkey_base_id)
207	15	*ppkey_base_id = ameth->pkey_base_id;
208	15	if (ppkey_flags)
209	15	*ppkey_flags = ameth->pkey_flags;
210	15	if (pinfo)
211	0	*pinfo = ameth->info;
212	15	if (ppem_str)
213	15	*ppem_str = ameth->pem_str;
214	15	return 1;
215	15	}
216
217		const EVP_PKEY_ASN1_METHOD EVP_PKEY_get0_asn1(const EVP_PKEY pkey)
218	0	{
219	0	return pkey->ameth;
220	0	}
221
222		EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
223		const char pem_str, const char info)
224	0	{
225	0	EVP_PKEY_ASN1_METHOD ameth = OPENSSL_zalloc(sizeof(ameth));
226
227	0	if (ameth == NULL)
228	0	return NULL;
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	return NULL;
251	0	}
252
253		void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
254		const EVP_PKEY_ASN1_METHOD *src)
255	0	{
256	0	int pkey_id = dst->pkey_id;
257	0	int pkey_base_id = dst->pkey_base_id;
258	0	unsigned long pkey_flags = dst->pkey_flags;
259	0	char *pem_str = dst->pem_str;
260	0	char *info = dst->info;
261
262	0	dst = src;
263
264		/* We only copy the function pointers so restore the other values */
265	0	dst->pkey_id = pkey_id;
266	0	dst->pkey_base_id = pkey_base_id;
267	0	dst->pkey_flags = pkey_flags;
268	0	dst->pem_str = pem_str;
269	0	dst->info = info;
270	0	}
271
272		void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
273	0	{
274	0	if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
275	0	OPENSSL_free(ameth->pem_str);
276	0	OPENSSL_free(ameth->info);
277	0	OPENSSL_free(ameth);
278	0	}
279	0	}
280
281		void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
282		int (pub_decode) (EVP_PKEY pk,
283		const X509_PUBKEY *pub),
284		int (pub_encode) (X509_PUBKEY pub,
285		const EVP_PKEY *pk),
286		int (pub_cmp) (const EVP_PKEY a,
287		const EVP_PKEY *b),
288		int (pub_print) (BIO out,
289		const EVP_PKEY *pkey,
290		int indent, ASN1_PCTX *pctx),
291		int (pkey_size) (const EVP_PKEY pk),
292		int (pkey_bits) (const EVP_PKEY pk))
293	0	{
294	0	ameth->pub_decode = pub_decode;
295	0	ameth->pub_encode = pub_encode;
296	0	ameth->pub_cmp = pub_cmp;
297	0	ameth->pub_print = pub_print;
298	0	ameth->pkey_size = pkey_size;
299	0	ameth->pkey_bits = pkey_bits;
300	0	}
301
302		void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
303		int (priv_decode) (EVP_PKEY pk,
304		const PKCS8_PRIV_KEY_INFO
305		*p8inf),
306		int (priv_encode) (PKCS8_PRIV_KEY_INFO p8,
307		const EVP_PKEY *pk),
308		int (priv_print) (BIO out,
309		const EVP_PKEY *pkey,
310		int indent,
311		ASN1_PCTX *pctx))
312	0	{
313	0	ameth->priv_decode = priv_decode;
314	0	ameth->priv_encode = priv_encode;
315	0	ameth->priv_print = priv_print;
316	0	}
317
318		void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
319		int (param_decode) (EVP_PKEY pkey,
320		const unsigned char **pder,
321		int derlen),
322		int (param_encode) (const EVP_PKEY pkey,
323		unsigned char **pder),
324		int (param_missing) (const EVP_PKEY pk),
325		int (param_copy) (EVP_PKEY to,
326		const EVP_PKEY *from),
327		int (param_cmp) (const EVP_PKEY a,
328		const EVP_PKEY *b),
329		int (param_print) (BIO out,
330		const EVP_PKEY *pkey,
331		int indent, ASN1_PCTX *pctx))
332	0	{
333	0	ameth->param_decode = param_decode;
334	0	ameth->param_encode = param_encode;
335	0	ameth->param_missing = param_missing;
336	0	ameth->param_copy = param_copy;
337	0	ameth->param_cmp = param_cmp;
338	0	ameth->param_print = param_print;
339	0	}
340
341		void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
342		void (pkey_free) (EVP_PKEY pkey))
343	0	{
344	0	ameth->pkey_free = pkey_free;
345	0	}
346
347		void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
348		int (pkey_ctrl) (EVP_PKEY pkey, int op,
349		long arg1, void *arg2))
350	0	{
351	0	ameth->pkey_ctrl = pkey_ctrl;
352	0	}
353
354		void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
355		int (*pkey_security_bits) (const EVP_PKEY
356		*pk))
357	0	{
358	0	ameth->pkey_security_bits = pkey_security_bits;
359	0	}
360
361		void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
362		int (item_verify) (EVP_MD_CTX ctx,
363		const ASN1_ITEM *it,
364		const void *data,
365		const X509_ALGOR *a,
366		const ASN1_BIT_STRING *sig,
367		EVP_PKEY *pkey),
368		int (item_sign) (EVP_MD_CTX ctx,
369		const ASN1_ITEM *it,
370		const void *data,
371		X509_ALGOR *alg1,
372		X509_ALGOR *alg2,
373		ASN1_BIT_STRING *sig))
374	0	{
375	0	ameth->item_sign = item_sign;
376	0	ameth->item_verify = item_verify;
377	0	}
378
379		void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
380		int (siginf_set) (X509_SIG_INFO siginf,
381		const X509_ALGOR *alg,
382		const ASN1_STRING *sig))
383	0	{
384	0	ameth->siginf_set = siginf_set;
385	0	}
386
387		void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
388		int (pkey_check) (const EVP_PKEY pk))
389	0	{
390	0	ameth->pkey_check = pkey_check;
391	0	}
392
393		void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
394		int (pkey_pub_check) (const EVP_PKEY pk))
395	0	{
396	0	ameth->pkey_public_check = pkey_pub_check;
397	0	}
398
399		void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
400		int (pkey_param_check) (const EVP_PKEY pk))
401	0	{
402	0	ameth->pkey_param_check = pkey_param_check;
403	0	}
404
405		void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
406		int (set_priv_key) (EVP_PKEY pk,
407		const unsigned char
408		*priv,
409		size_t len))
410	0	{
411	0	ameth->set_priv_key = set_priv_key;
412	0	}
413
414		void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
415		int (set_pub_key) (EVP_PKEY pk,
416		const unsigned char *pub,
417		size_t len))
418	0	{
419	0	ameth->set_pub_key = set_pub_key;
420	0	}
421
422		void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
423		int (get_priv_key) (const EVP_PKEY pk,
424		unsigned char *priv,
425		size_t *len))
426	0	{
427	0	ameth->get_priv_key = get_priv_key;
428	0	}
429
430		void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
431		int (get_pub_key) (const EVP_PKEY pk,
432		unsigned char *pub,
433		size_t *len))
434	0	{
435	0	ameth->get_pub_key = get_pub_key;
436	0	}