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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 !! */
- static const EVP_PKEY_ASN1_METHOD *standard_methods[] =
- {
- #ifndef OPENSSL_NO_RSA
- &rsa_asn1_meths[0],
- &rsa_asn1_meths[1],
- #endif
- #ifndef OPENSSL_NO_DH
- &dh_asn1_meth,
- #endif
- #ifndef OPENSSL_NO_DSA
- &dsa_asn1_meths[0],
- &dsa_asn1_meths[1],
- &dsa_asn1_meths[2],
- &dsa_asn1_meths[3],
- &dsa_asn1_meths[4],
- #endif
- #ifndef OPENSSL_NO_EC
- &eckey_asn1_meth
- #endif
- };
- 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);
- }
- int EVP_PKEY_asn1_get_count(void)
- {
- int num = sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
- if (app_methods)
- num += sk_num(app_methods);
- return num;
- }
- const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
- {
- int num = sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
- if (idx < 0)
- return NULL;
- if (idx < num)
- return standard_methods[idx];
- idx -= num;
- return (const EVP_PKEY_ASN1_METHOD *)sk_value(app_methods, idx);
- }
- 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 *)&tmp);
- 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;
- }
- const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(const char *str, int len)
- {
- int i;
- const EVP_PKEY_ASN1_METHOD *ameth;
- if (len == -1)
- len = strlen(str);
- for (i = 0; i < EVP_PKEY_asn1_get_count(); i++)
- {
- 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))
- return ameth;
- }
- return NULL;
- }
- int EVP_PKEY_asn1_add0(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;
- }
- 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)
- return 0;
- ameth->pkey_base_id = to;
- return EVP_PKEY_asn1_add0(ameth);
- }
- 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;
- }
- EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id, int flags,
- 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 = 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)(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;
- }
|