| /* dh_asn1.c */ |
| /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
| * project 2000. |
| */ |
| /* ==================================================================== |
| * Copyright (c) 2000-2005 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/bn.h> |
| #include <openssl/dh.h> |
| #include <openssl/objects.h> |
| #include <openssl/asn1t.h> |
| |
| /* Override the default free and new methods */ |
| static int dh_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, |
| void *exarg) |
| { |
| if(operation == ASN1_OP_NEW_PRE) { |
| *pval = (ASN1_VALUE *)DH_new(); |
| if(*pval) return 2; |
| return 0; |
| } else if(operation == ASN1_OP_FREE_PRE) { |
| DH_free((DH *)*pval); |
| *pval = NULL; |
| return 2; |
| } |
| return 1; |
| } |
| |
| ASN1_SEQUENCE_cb(DHparams, dh_cb) = { |
| ASN1_SIMPLE(DH, p, BIGNUM), |
| ASN1_SIMPLE(DH, g, BIGNUM), |
| ASN1_OPT(DH, length, ZLONG), |
| } ASN1_SEQUENCE_END_cb(DH, DHparams) |
| |
| IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DH, DHparams, DHparams) |
| |
| DH *DHparams_dup(DH *dh) |
| { |
| return ASN1_item_dup(ASN1_ITEM_rptr(DHparams), dh); |
| } |