1d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 2d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * project 2000. 3d9e397b599b13d642138480a28c14db7a136bf0Adam Langley */ 4d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* ==================================================================== 5d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved. 6d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 7d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * Redistribution and use in source and binary forms, with or without 8d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * modification, are permitted provided that the following conditions 9d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * are met: 10d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 11d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 1. Redistributions of source code must retain the above copyright 12d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * notice, this list of conditions and the following disclaimer. 13d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 14d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 2. Redistributions in binary form must reproduce the above copyright 15d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * notice, this list of conditions and the following disclaimer in 16d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * the documentation and/or other materials provided with the 17d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * distribution. 18d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 19d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 3. All advertising materials mentioning features or use of this 20d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * software must display the following acknowledgment: 21d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * "This product includes software developed by the OpenSSL Project 22d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 23d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 24d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 25d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * endorse or promote products derived from this software without 26d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * prior written permission. For written permission, please contact 27d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * licensing@OpenSSL.org. 28d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 29d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 5. Products derived from this software may not be called "OpenSSL" 30d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * nor may "OpenSSL" appear in their names without prior written 31d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * permission of the OpenSSL Project. 32d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 33d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 6. Redistributions of any form whatsoever must retain the following 34d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * acknowledgment: 35d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * "This product includes software developed by the OpenSSL Project 36d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 37d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 38d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 39d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 40d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 41d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 42d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 43d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 44d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 45d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 46d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 47d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 48d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 49d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * OF THE POSSIBILITY OF SUCH DAMAGE. 50d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * ==================================================================== 51d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * 52d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * This product includes cryptographic software written by Eric Young 53d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * (eay@cryptsoft.com). This product includes software written by Tim 54d9e397b599b13d642138480a28c14db7a136bf0Adam Langley * Hudson (tjh@cryptsoft.com). */ 55d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 56d9e397b599b13d642138480a28c14db7a136bf0Adam Langley#include <openssl/dh.h> 57d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 58d9e397b599b13d642138480a28c14db7a136bf0Adam Langley#include <openssl/asn1.h> 59d9e397b599b13d642138480a28c14db7a136bf0Adam Langley#include <openssl/asn1t.h> 60d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 61d9e397b599b13d642138480a28c14db7a136bf0Adam Langley#include "internal.h" 62d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 63d9e397b599b13d642138480a28c14db7a136bf0Adam Langley/* Override the default free and new methods */ 64d9e397b599b13d642138480a28c14db7a136bf0Adam Langleystatic int dh_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, 65d9e397b599b13d642138480a28c14db7a136bf0Adam Langley void *exarg) { 66d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (operation == ASN1_OP_NEW_PRE) { 67d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *pval = (ASN1_VALUE *)DH_new(); 68d9e397b599b13d642138480a28c14db7a136bf0Adam Langley if (*pval) { 69d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 2; 70d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 71d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 0; 72d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } else if (operation == ASN1_OP_FREE_PRE) { 73d9e397b599b13d642138480a28c14db7a136bf0Adam Langley DH_free((DH *)*pval); 74d9e397b599b13d642138480a28c14db7a136bf0Adam Langley *pval = NULL; 75d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 2; 76d9e397b599b13d642138480a28c14db7a136bf0Adam Langley } 77d9e397b599b13d642138480a28c14db7a136bf0Adam Langley return 1; 78d9e397b599b13d642138480a28c14db7a136bf0Adam Langley} 79d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 80d9e397b599b13d642138480a28c14db7a136bf0Adam LangleyASN1_SEQUENCE_cb(DHparams, dh_cb) = { 81d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ASN1_SIMPLE(DH, p, BIGNUM), ASN1_SIMPLE(DH, g, BIGNUM), 82d9e397b599b13d642138480a28c14db7a136bf0Adam Langley ASN1_OPT(DH, priv_length, ZLONG)} ASN1_SEQUENCE_END_cb(DH, DHparams); 83d9e397b599b13d642138480a28c14db7a136bf0Adam Langley 84d9e397b599b13d642138480a28c14db7a136bf0Adam LangleyIMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DH, DHparams, DHparams) 85