1 /* $OpenBSD: ech_locl.h,v 1.5 2016/12/21 15:49:29 jsing Exp $ */ 2 /* ==================================================================== 3 * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * 3. All advertising materials mentioning features or use of this 18 * software must display the following acknowledgment: 19 * "This product includes software developed by the OpenSSL Project 20 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 21 * 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 23 * endorse or promote products derived from this software without 24 * prior written permission. For written permission, please contact 25 * licensing@OpenSSL.org. 26 * 27 * 5. Products derived from this software may not be called "OpenSSL" 28 * nor may "OpenSSL" appear in their names without prior written 29 * permission of the OpenSSL Project. 30 * 31 * 6. Redistributions of any form whatsoever must retain the following 32 * acknowledgment: 33 * "This product includes software developed by the OpenSSL Project 34 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 47 * OF THE POSSIBILITY OF SUCH DAMAGE. 48 * ==================================================================== 49 * 50 * This product includes cryptographic software written by Eric Young 51 * (eay@cryptsoft.com). This product includes software written by Tim 52 * Hudson (tjh@cryptsoft.com). 53 * 54 */ 55 56 #ifndef HEADER_ECH_LOCL_H 57 #define HEADER_ECH_LOCL_H 58 59 #include <openssl/ecdh.h> 60 61 __BEGIN_HIDDEN_DECLS 62 63 struct ecdh_method { 64 const char *name; 65 int (*compute_key)(void *key, size_t outlen, const EC_POINT *pub_key, EC_KEY *ecdh, 66 void *(*KDF)(const void *in, size_t inlen, void *out, size_t *outlen)); 67 int flags; 68 char *app_data; 69 }; 70 71 /* If this flag is set the ECDH method is FIPS compliant and can be used 72 * in FIPS mode. This is set in the validated module method. If an 73 * application sets this flag in its own methods it is its responsibility 74 * to ensure the result is compliant. 75 */ 76 77 #define ECDH_FLAG_FIPS_METHOD 0x1 78 79 typedef struct ecdh_data_st { 80 /* EC_KEY_METH_DATA part */ 81 int (*init)(EC_KEY *); 82 /* method specific part */ 83 ENGINE *engine; 84 int flags; 85 const ECDH_METHOD *meth; 86 CRYPTO_EX_DATA ex_data; 87 } ECDH_DATA; 88 89 ECDH_DATA *ecdh_check(EC_KEY *); 90 91 __END_HIDDEN_DECLS 92 93 #endif /* HEADER_ECH_LOCL_H */ 94