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

Source (jump to first uncovered line)
/*
 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (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
 */

#include "e_os.h"               /* for strncasecmp */
#include "internal/cryptlib.h"
#include <stdio.h>
#include <openssl/asn1t.h>
#include <openssl/x509.h>
#include <openssl/engine.h>
#include "internal/asn1_int.h"
#include "internal/evp_int.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 || !*ret)
        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
            && 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, };

    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) {
        EVPerr(EVP_F_EVP_PKEY_ASN1_ADD0,
               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)
            goto err;
    }

    /*
     * 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 (!((pem_str == NULL && (flags & ASN1_PKEY_ALIAS) != 0)
          || (pem_str != NULL && (flags & ASN1_PKEY_ALIAS) == 0)))
        goto err;

    if (pem_str) {
        ameth->pem_str = OPENSSL_strdup(pem_str);
        if (!ameth->pem_str)
            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)
{

    dst->pub_decode = src->pub_decode;
    dst->pub_encode = src->pub_encode;
    dst->pub_cmp = src->pub_cmp;
    dst->pub_print = src->pub_print;

    dst->priv_decode = src->priv_decode;
    dst->priv_encode = src->priv_encode;
    dst->priv_print = src->priv_print;

    dst->old_priv_encode = src->old_priv_encode;
    dst->old_priv_decode = src->old_priv_decode;

    dst->pkey_size = src->pkey_size;
    dst->pkey_bits = src->pkey_bits;

    dst->param_decode = src->param_decode;
    dst->param_encode = src->param_encode;
    dst->param_missing = src->param_missing;
    dst->param_copy = src->param_copy;
    dst->param_cmp = src->param_cmp;
    dst->param_print = src->param_print;

    dst->pkey_free = src->pkey_free;
    dst->pkey_ctrl = src->pkey_ctrl;

    dst->item_sign = src->item_sign;
    dst->item_verify = src->item_verify;

    dst->siginf_set = src->siginf_set;

    dst->pkey_check = src->pkey_check;

}

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,
                                                 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,
                                                void *asn,
                                                X509_ALGOR *a,
                                                ASN1_BIT_STRING *sig,
                                                EVP_PKEY *pkey),
                            int (*item_sign) (EVP_MD_CTX *ctx,
                                              const ASN1_ITEM *it,
                                              void *asn,
                                              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: 2018-08-29 13:53

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the OpenSSL license (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		#include "e_os.h" /* for strncasecmp */
11		#include "internal/cryptlib.h"
12		#include <stdio.h>
13		#include <openssl/asn1t.h>
14		#include <openssl/x509.h>
15		#include <openssl/engine.h>
16		#include "internal/asn1_int.h"
17		#include "internal/evp_int.h"
18
19		#include "standard_methods.h"
20
21		typedef int sk_cmp_fn_type(const char const a, const char const b);
22		static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;
23
24		DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
25		const EVP_PKEY_ASN1_METHOD *, ameth);
26
27		static int ameth_cmp(const EVP_PKEY_ASN1_METHOD const a,
28		const EVP_PKEY_ASN1_METHOD const b)
29	999k	{
30	999k	return ((a)->pkey_id - (b)->pkey_id);
31	999k	}
32
33		IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
34		const EVP_PKEY_ASN1_METHOD *, ameth);
35
36		int EVP_PKEY_asn1_get_count(void)
37	378k	{
38	378k	int num = OSSL_NELEM(standard_methods);
39	378k	if (app_methods)
40	0	num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
41	378k	return num;
42	378k	}
43
44		const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
45	7.57M	{
46	7.57M	int num = OSSL_NELEM(standard_methods);
47	7.57M	if (idx < 0)
48	0	return NULL;
49	7.57M	if (idx < num)
50	7.57M	return standard_methods[idx];
51	0	idx -= num;
52	0	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
53	0	}
54
55		static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
56	200k	{
57	200k	EVP_PKEY_ASN1_METHOD tmp;
58	200k	const EVP_PKEY_ASN1_METHOD t = &tmp, *ret;
59	200k	tmp.pkey_id = type;
60	200k	if (app_methods) {
61	0	int idx;
62	0	idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp);
63	0	if (idx >= 0)
64	0	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
65	200k	}
66	200k	ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
67	200k	if (!ret \|\| !*ret)
68	12.8k	return NULL;
69	187k	return *ret;
70	187k	}
71
72		/*
73		* Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also
74		* search through engines and set *pe to a functional reference to the engine
75		* implementing 'type' or NULL if no engine implements it.
76		*/
77
78		const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find(ENGINE *pe, int type)
79	200k	{
80	200k	const EVP_PKEY_ASN1_METHOD *t;
81	200k
82	200k	for (;;) {
83	200k	t = pkey_asn1_find(type);
84	200k	if (!t \|\| !(t->pkey_flags & ASN1_PKEY_ALIAS))
85	200k	break;
86	17	type = t->pkey_base_id;
87	17	}
88	200k	if (pe) {
89	200k	#ifndef OPENSSL_NO_ENGINE
90	200k	ENGINE *e;
91	200k	/* type will contain the final unaliased type */
92	200k	e = ENGINE_get_pkey_asn1_meth_engine(type);
93	200k	if (e) {
94	0	*pe = e;
95	0	return ENGINE_get_pkey_asn1_meth(e, type);
96	0	}
97	200k	#endif
98	200k	*pe = NULL;
99	200k	}
100	200k	return t;
101	200k	}
102
103		const EVP_PKEY_ASN1_METHOD EVP_PKEY_asn1_find_str(ENGINE *pe,
104		const char *str, int len)
105	378k	{
106	378k	int i;
107	378k	const EVP_PKEY_ASN1_METHOD *ameth = NULL;
108	378k
109	378k	if (len == -1)
110	0	len = strlen(str);
111	378k	if (pe) {
112	0	#ifndef OPENSSL_NO_ENGINE
113	0	ENGINE *e;
114	0	ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
115	0	if (ameth) {
116	0	/*
117	0	* Convert structural into functional reference
118	0	*/
119	0	if (!ENGINE_init(e))
120	0	ameth = NULL;
121	0	ENGINE_free(e);
122	0	*pe = e;
123	0	return ameth;
124	0	}
125	0	#endif
126	0	*pe = NULL;
127	0	}
128	7.57M	for (i = EVP_PKEY_asn1_get_count(); i-- > 0; ) {
129	7.57M	ameth = EVP_PKEY_asn1_get0(i);
130	7.57M	if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
131	7.57M	continue;
132	5.29M	if ((int)strlen(ameth->pem_str) == len
133	5.29M	&& strncasecmp(ameth->pem_str, str, len) == 0)
134	378k	return ameth;
135	5.29M	}
136	378k	return NULL;
137	378k	}
138
139		int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
140	0	{
141	0	EVP_PKEY_ASN1_METHOD tmp = { 0, };
142	0
143	0	if (app_methods == NULL) {
144	0	app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
145	0	if (app_methods == NULL)
146	0	return 0;
147	0	}
148	0
149	0	tmp.pkey_id = ameth->pkey_id;
150	0	if (sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp) >= 0) {
151	0	EVPerr(EVP_F_EVP_PKEY_ASN1_ADD0,
152	0	EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED);
153	0	return 0;
154	0	}
155	0
156	0	if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
157	0	return 0;
158	0	sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
159	0	return 1;
160	0	}
161
162		int EVP_PKEY_asn1_add_alias(int to, int from)
163	0	{
164	0	EVP_PKEY_ASN1_METHOD *ameth;
165	0	ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
166	0	if (ameth == NULL)
167	0	return 0;
168	0	ameth->pkey_base_id = to;
169	0	if (!EVP_PKEY_asn1_add0(ameth)) {
170	0	EVP_PKEY_asn1_free(ameth);
171	0	return 0;
172	0	}
173	0	return 1;
174	0	}
175
176		int EVP_PKEY_asn1_get0_info(int ppkey_id, int ppkey_base_id,
177		int ppkey_flags, const char *pinfo,
178		const char **ppem_str,
179		const EVP_PKEY_ASN1_METHOD *ameth)
180	0	{
181	0	if (!ameth)
182	0	return 0;
183	0	if (ppkey_id)
184	0	*ppkey_id = ameth->pkey_id;
185	0	if (ppkey_base_id)
186	0	*ppkey_base_id = ameth->pkey_base_id;
187	0	if (ppkey_flags)
188	0	*ppkey_flags = ameth->pkey_flags;
189	0	if (pinfo)
190	0	*pinfo = ameth->info;
191	0	if (ppem_str)
192	0	*ppem_str = ameth->pem_str;
193	0	return 1;
194	0	}
195
196		const EVP_PKEY_ASN1_METHOD EVP_PKEY_get0_asn1(const EVP_PKEY pkey)
197	0	{
198	0	return pkey->ameth;
199	0	}
200
201		EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
202		const char pem_str, const char info)
203	0	{
204	0	EVP_PKEY_ASN1_METHOD ameth = OPENSSL_zalloc(sizeof(ameth));
205	0
206	0	if (ameth == NULL)
207	0	return NULL;
208	0
209	0	ameth->pkey_id = id;
210	0	ameth->pkey_base_id = id;
211	0	ameth->pkey_flags = flags \| ASN1_PKEY_DYNAMIC;
212	0
213	0	if (info) {
214	0	ameth->info = OPENSSL_strdup(info);
215	0	if (!ameth->info)
216	0	goto err;
217	0	}
218	0
219	0	/*
220	0	* One of the following must be true:
221	0	*
222	0	* pem_str == NULL AND ASN1_PKEY_ALIAS is set
223	0	* pem_str != NULL AND ASN1_PKEY_ALIAS is clear
224	0	*
225	0	* Anything else is an error and may lead to a corrupt ASN1 method table
226	0	*/
227	0	if (!((pem_str == NULL && (flags & ASN1_PKEY_ALIAS) != 0)
228	0	\|\| (pem_str != NULL && (flags & ASN1_PKEY_ALIAS) == 0)))
229	0	goto err;
230	0
231	0	if (pem_str) {
232	0	ameth->pem_str = OPENSSL_strdup(pem_str);
233	0	if (!ameth->pem_str)
234	0	goto err;
235	0	}
236	0
237	0	return ameth;
238	0
239	0	err:
240	0	EVP_PKEY_asn1_free(ameth);
241	0	return NULL;
242	0
243	0	}
244
245		void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
246		const EVP_PKEY_ASN1_METHOD *src)
247	0	{
248	0
249	0	dst->pub_decode = src->pub_decode;
250	0	dst->pub_encode = src->pub_encode;
251	0	dst->pub_cmp = src->pub_cmp;
252	0	dst->pub_print = src->pub_print;
253	0
254	0	dst->priv_decode = src->priv_decode;
255	0	dst->priv_encode = src->priv_encode;
256	0	dst->priv_print = src->priv_print;
257	0
258	0	dst->old_priv_encode = src->old_priv_encode;
259	0	dst->old_priv_decode = src->old_priv_decode;
260	0
261	0	dst->pkey_size = src->pkey_size;
262	0	dst->pkey_bits = src->pkey_bits;
263	0
264	0	dst->param_decode = src->param_decode;
265	0	dst->param_encode = src->param_encode;
266	0	dst->param_missing = src->param_missing;
267	0	dst->param_copy = src->param_copy;
268	0	dst->param_cmp = src->param_cmp;
269	0	dst->param_print = src->param_print;
270	0
271	0	dst->pkey_free = src->pkey_free;
272	0	dst->pkey_ctrl = src->pkey_ctrl;
273	0
274	0	dst->item_sign = src->item_sign;
275	0	dst->item_verify = src->item_verify;
276	0
277	0	dst->siginf_set = src->siginf_set;
278	0
279	0	dst->pkey_check = src->pkey_check;
280	0
281	0	}
282
283		void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
284	0	{
285	0	if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
286	0	OPENSSL_free(ameth->pem_str);
287	0	OPENSSL_free(ameth->info);
288	0	OPENSSL_free(ameth);
289	0	}
290	0	}
291
292		void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
293		int (pub_decode) (EVP_PKEY pk,
294		X509_PUBKEY *pub),
295		int (pub_encode) (X509_PUBKEY pub,
296		const EVP_PKEY *pk),
297		int (pub_cmp) (const EVP_PKEY a,
298		const EVP_PKEY *b),
299		int (pub_print) (BIO out,
300		const EVP_PKEY *pkey,
301		int indent, ASN1_PCTX *pctx),
302		int (pkey_size) (const EVP_PKEY pk),
303		int (pkey_bits) (const EVP_PKEY pk))
304	0	{
305	0	ameth->pub_decode = pub_decode;
306	0	ameth->pub_encode = pub_encode;
307	0	ameth->pub_cmp = pub_cmp;
308	0	ameth->pub_print = pub_print;
309	0	ameth->pkey_size = pkey_size;
310	0	ameth->pkey_bits = pkey_bits;
311	0	}
312
313		void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
314		int (priv_decode) (EVP_PKEY pk,
315		const PKCS8_PRIV_KEY_INFO
316		*p8inf),
317		int (priv_encode) (PKCS8_PRIV_KEY_INFO p8,
318		const EVP_PKEY *pk),
319		int (priv_print) (BIO out,
320		const EVP_PKEY *pkey,
321		int indent,
322		ASN1_PCTX *pctx))
323	0	{
324	0	ameth->priv_decode = priv_decode;
325	0	ameth->priv_encode = priv_encode;
326	0	ameth->priv_print = priv_print;
327	0	}
328
329		void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
330		int (param_decode) (EVP_PKEY pkey,
331		const unsigned char **pder,
332		int derlen),
333		int (param_encode) (const EVP_PKEY pkey,
334		unsigned char **pder),
335		int (param_missing) (const EVP_PKEY pk),
336		int (param_copy) (EVP_PKEY to,
337		const EVP_PKEY *from),
338		int (param_cmp) (const EVP_PKEY a,
339		const EVP_PKEY *b),
340		int (param_print) (BIO out,
341		const EVP_PKEY *pkey,
342		int indent, ASN1_PCTX *pctx))
343	0	{
344	0	ameth->param_decode = param_decode;
345	0	ameth->param_encode = param_encode;
346	0	ameth->param_missing = param_missing;
347	0	ameth->param_copy = param_copy;
348	0	ameth->param_cmp = param_cmp;
349	0	ameth->param_print = param_print;
350	0	}
351
352		void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
353		void (pkey_free) (EVP_PKEY pkey))
354	0	{
355	0	ameth->pkey_free = pkey_free;
356	0	}
357
358		void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
359		int (pkey_ctrl) (EVP_PKEY pkey, int op,
360		long arg1, void *arg2))
361	0	{
362	0	ameth->pkey_ctrl = pkey_ctrl;
363	0	}
364
365		void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
366		int (*pkey_security_bits) (const EVP_PKEY
367		*pk))
368	0	{
369	0	ameth->pkey_security_bits = pkey_security_bits;
370	0	}
371
372		void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
373		int (item_verify) (EVP_MD_CTX ctx,
374		const ASN1_ITEM *it,
375		void *asn,
376		X509_ALGOR *a,
377		ASN1_BIT_STRING *sig,
378		EVP_PKEY *pkey),
379		int (item_sign) (EVP_MD_CTX ctx,
380		const ASN1_ITEM *it,
381		void *asn,
382		X509_ALGOR *alg1,
383		X509_ALGOR *alg2,
384		ASN1_BIT_STRING *sig))
385	0	{
386	0	ameth->item_sign = item_sign;
387	0	ameth->item_verify = item_verify;
388	0	}
389
390		void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
391		int (siginf_set) (X509_SIG_INFO siginf,
392		const X509_ALGOR *alg,
393		const ASN1_STRING *sig))
394	0	{
395	0	ameth->siginf_set = siginf_set;
396	0	}
397
398		void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
399		int (pkey_check) (const EVP_PKEY pk))
400	0	{
401	0	ameth->pkey_check = pkey_check;
402	0	}
403
404		void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
405		int (pkey_pub_check) (const EVP_PKEY pk))
406	0	{
407	0	ameth->pkey_public_check = pkey_pub_check;
408	0	}
409
410		void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
411		int (pkey_param_check) (const EVP_PKEY pk))
412	0	{
413	0	ameth->pkey_param_check = pkey_param_check;
414	0	}
415
416		void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
417		int (set_priv_key) (EVP_PKEY pk,
418		const unsigned char
419		*priv,
420		size_t len))
421	0	{
422	0	ameth->set_priv_key = set_priv_key;
423	0	}
424
425		void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
426		int (set_pub_key) (EVP_PKEY pk,
427		const unsigned char *pub,
428		size_t len))
429	0	{
430	0	ameth->set_pub_key = set_pub_key;
431	0	}
432
433		void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
434		int (get_priv_key) (const EVP_PKEY pk,
435		unsigned char *priv,
436		size_t *len))
437	0	{
438	0	ameth->get_priv_key = get_priv_key;
439	0	}
440
441		void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
442		int (get_pub_key) (const EVP_PKEY pk,
443		unsigned char *pub,
444		size_t *len))
445	0	{
446	0	ameth->get_pub_key = get_pub_key;
447	0	}