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- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * 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 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 acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS 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 AUTHOR OR 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.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.] */
-
- #include <openssl/evp.h>
-
- #include <openssl/asn1.h>
- #include <openssl/err.h>
- #include <openssl/obj.h>
- #include <openssl/x509.h>
-
- #include "internal.h"
-
-
- EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **out, const uint8_t **inp,
- long len) {
- EVP_PKEY *ret;
-
- if (out == NULL || *out == NULL) {
- ret = EVP_PKEY_new();
- if (ret == NULL) {
- OPENSSL_PUT_ERROR(EVP, ERR_R_EVP_LIB);
- return NULL;
- }
- } else {
- ret = *out;
- }
-
- if (!EVP_PKEY_set_type(ret, type)) {
- OPENSSL_PUT_ERROR(EVP, EVP_R_UNKNOWN_PUBLIC_KEY_TYPE);
- goto err;
- }
-
- const uint8_t *in = *inp;
- /* If trying to remove |old_priv_decode|, note that some code depends on this
- * function writing into |*out| and the |priv_decode| path doesn't support
- * that. */
- if (!ret->ameth->old_priv_decode ||
- !ret->ameth->old_priv_decode(ret, &in, len)) {
- if (ret->ameth->priv_decode) {
- /* Reset |in| in case |old_priv_decode| advanced it on error. */
- in = *inp;
- PKCS8_PRIV_KEY_INFO *p8 = d2i_PKCS8_PRIV_KEY_INFO(NULL, &in, len);
- if (!p8) {
- goto err;
- }
- EVP_PKEY_free(ret);
- ret = EVP_PKCS82PKEY(p8);
- PKCS8_PRIV_KEY_INFO_free(p8);
- if (ret == NULL) {
- goto err;
- }
- } else {
- OPENSSL_PUT_ERROR(EVP, ERR_R_ASN1_LIB);
- goto err;
- }
- }
-
- if (out != NULL) {
- *out = ret;
- }
- *inp = in;
- return ret;
-
- err:
- if (out == NULL || *out != ret) {
- EVP_PKEY_free(ret);
- }
- return NULL;
- }
-
- EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **out, const uint8_t **inp, long len) {
- STACK_OF(ASN1_TYPE) *inkey;
- const uint8_t *p;
- int keytype;
- p = *inp;
-
- /* Dirty trick: read in the ASN1 data into out STACK_OF(ASN1_TYPE):
- * by analyzing it we can determine the passed structure: this
- * assumes the input is surrounded by an ASN1 SEQUENCE. */
- inkey = d2i_ASN1_SEQUENCE_ANY(NULL, &p, len);
- /* Since we only need to discern "traditional format" RSA and DSA
- * keys we can just count the elements. */
- if (sk_ASN1_TYPE_num(inkey) == 6) {
- keytype = EVP_PKEY_DSA;
- } else if (sk_ASN1_TYPE_num(inkey) == 4) {
- keytype = EVP_PKEY_EC;
- } else if (sk_ASN1_TYPE_num(inkey) == 3) {
- /* This seems to be PKCS8, not traditional format */
- p = *inp;
- PKCS8_PRIV_KEY_INFO *p8 = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len);
- EVP_PKEY *ret;
-
- sk_ASN1_TYPE_pop_free(inkey, ASN1_TYPE_free);
- if (!p8) {
- OPENSSL_PUT_ERROR(EVP, EVP_R_UNSUPPORTED_PUBLIC_KEY_TYPE);
- return NULL;
- }
- ret = EVP_PKCS82PKEY(p8);
- PKCS8_PRIV_KEY_INFO_free(p8);
- if (ret == NULL) {
- return NULL;
- }
-
- *inp = p;
- if (out) {
- *out = ret;
- }
- return ret;
- } else {
- keytype = EVP_PKEY_RSA;
- }
-
- sk_ASN1_TYPE_pop_free(inkey, ASN1_TYPE_free);
- return d2i_PrivateKey(keytype, out, inp, len);
- }
-
- int i2d_PublicKey(EVP_PKEY *key, uint8_t **outp) {
- switch (key->type) {
- case EVP_PKEY_RSA:
- return i2d_RSAPublicKey(key->pkey.rsa, outp);
- case EVP_PKEY_DSA:
- return i2d_DSAPublicKey(key->pkey.dsa, outp);
- case EVP_PKEY_EC:
- return i2o_ECPublicKey(key->pkey.ec, outp);
- default:
- OPENSSL_PUT_ERROR(EVP, EVP_R_UNSUPPORTED_PUBLIC_KEY_TYPE);
- return -1;
- }
- }
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