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openssl/crypto/asn1/ameth_lib.c
Dr. Stephen Henson d82e2718e2 Add information and pem strings. Update dependencies.
2006-03-23 11:54:51 +00:00

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/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
* project 2006.
*/
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/asn1t.h>
#include <openssl/x509.h>
#include <openssl/ec.h>
#include "asn1_locl.h"
extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[];
extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[];
extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth;
extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth;
/* Keep this sorted in type order !! */
const EVP_PKEY_ASN1_METHOD *standard_methods[] =
{
&rsa_asn1_meths[0],
&rsa_asn1_meths[1],
&dh_asn1_meth,
&dsa_asn1_meths[0],
&dsa_asn1_meths[1],
&dsa_asn1_meths[2],
&dsa_asn1_meths[3],
&dsa_asn1_meths[4],
&eckey_asn1_meth
};
typedef int sk_cmp_fn_type(const char * const *a, const char * const *b);
static STACK *app_methods = NULL;
#ifdef TEST
void main()
{
int i;
for (i = 0;
i < sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
i++)
fprintf(stderr, "Number %d id=%d (%s)\n", i,
standard_methods[i]->pkey_id,
OBJ_nid2sn(standard_methods[i]->pkey_id));
}
#endif
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);
}
const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(int type)
{
EVP_PKEY_ASN1_METHOD tmp, *t = &tmp, **ret;
tmp.pkey_id = type;
if (app_methods)
{
int idx;
idx = sk_find(app_methods, (char *)&t);
if (idx > 0)
return (EVP_PKEY_ASN1_METHOD *)
sk_value(app_methods, idx);
}
ret = (EVP_PKEY_ASN1_METHOD **) OBJ_bsearch((char *)&t,
(char *)standard_methods,
sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *),
sizeof(EVP_PKEY_ASN1_METHOD *),
(int (*)(const void *, const void *))ameth_cmp);
if (!ret || !*ret)
return NULL;
if ((*ret)->pkey_flags & ASN1_PKEY_ALIAS)
return EVP_PKEY_asn1_find((*ret)->pkey_base_id);
return *ret;
}
int EVP_PKEY_asn1_add(const EVP_PKEY_ASN1_METHOD *ameth)
{
if (app_methods == NULL)
{
app_methods = sk_new((sk_cmp_fn_type *)ameth_cmp);
if (!app_methods)
return 0;
}
if (!sk_push(app_methods, (char *)ameth))
return 0;
sk_sort(app_methods);
return 1;
}
EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id,
const char *pem_str, const char *info)
{
EVP_PKEY_ASN1_METHOD *ameth;
ameth = OPENSSL_malloc(sizeof(EVP_PKEY_ASN1_METHOD));
if (!ameth)
return NULL;
ameth->pkey_id = id;
ameth->pkey_base_id = id;
ameth->pkey_flags = ASN1_PKEY_DYNAMIC;
if (info)
{
ameth->info = BUF_strdup(info);
if (!ameth->info)
goto err;
}
if (pem_str)
{
ameth->pem_str = BUF_strdup(pem_str);
if (!ameth->pem_str)
goto err;
}
ameth->pub_decode = 0;
ameth->pub_encode = 0;
ameth->pub_cmp = 0;
ameth->pub_print = 0;
ameth->priv_decode = 0;
ameth->priv_encode = 0;
ameth->priv_print = 0;
ameth->pkey_size = 0;
ameth->pkey_bits = 0;
ameth->param_decode = 0;
ameth->param_encode = 0;
ameth->param_missing = 0;
ameth->param_copy = 0;
ameth->param_cmp = 0;
ameth->param_print = 0;
ameth->pkey_free = 0;
ameth->pkey_ctrl = 0;
return ameth;
err:
EVP_PKEY_asn1_free(ameth);
return NULL;
}
void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
{
if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC))
{
if (ameth->pem_str)
OPENSSL_free(ameth->pem_str);
if (ameth->info)
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, 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)(const EVP_PKEY *pk, X509_PUBKEY *pub),
int (*param_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk),
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,
void (*pkey_ctrl)(EVP_PKEY *pkey, int op,
long arg1, void *arg2))
{
ameth->pkey_ctrl = pkey_ctrl;
}
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