1 /* $OpenBSD: hmac.h,v 1.13 2018/02/17 14:53:59 jsing Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as core.stdc.config.c_long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 module libressl_d.openssl.hmac; 59 60 61 private static import core.stdc.config; 62 private static import libressl_d.openssl.ossl_typ; 63 public import libressl_d.openssl.evp; 64 public import libressl_d.openssl.opensslconf; 65 66 version (OPENSSL_NO_HMAC) { 67 static assert(false, "HMAC is disabled."); 68 } 69 70 /** 71 * largest known is SHA512 72 */ 73 enum HMAC_MAX_MD_CBLOCK = 128; 74 75 extern (C): 76 nothrow @nogc: 77 78 struct hmac_ctx_st 79 { 80 const (libressl_d.openssl.ossl_typ.EVP_MD)* md; 81 libressl_d.openssl.ossl_typ.EVP_MD_CTX md_ctx; 82 libressl_d.openssl.ossl_typ.EVP_MD_CTX i_ctx; 83 libressl_d.openssl.ossl_typ.EVP_MD_CTX o_ctx; 84 uint key_length; 85 ubyte[.HMAC_MAX_MD_CBLOCK] key; 86 } 87 88 alias HMAC_CTX = .hmac_ctx_st; 89 90 pragma(inline, true) 91 int HMAC_size(E)(E* e) 92 93 in 94 { 95 assert(e != null); 96 } 97 98 do 99 { 100 return libressl_d.openssl.evp.EVP_MD_size(e.md); 101 } 102 103 .HMAC_CTX* HMAC_CTX_new(); 104 void HMAC_CTX_free(.HMAC_CTX* ctx); 105 void HMAC_CTX_init(.HMAC_CTX* ctx); 106 int HMAC_CTX_reset(.HMAC_CTX* ctx); 107 void HMAC_CTX_cleanup(.HMAC_CTX* ctx); 108 109 deprecated 110 alias HMAC_cleanup = .HMAC_CTX_cleanup; 111 112 deprecated 113 int HMAC_Init(.HMAC_CTX* ctx, const (void)* key, int len, const (libressl_d.openssl.ossl_typ.EVP_MD)* md); 114 115 int HMAC_Init_ex(.HMAC_CTX* ctx, const (void)* key, int len, const (libressl_d.openssl.ossl_typ.EVP_MD)* md, libressl_d.openssl.ossl_typ.ENGINE* impl); 116 int HMAC_Update(.HMAC_CTX* ctx, const (ubyte)* data, size_t len); 117 int HMAC_Final(.HMAC_CTX* ctx, ubyte* md, uint* len); 118 ubyte* HMAC(const (libressl_d.openssl.ossl_typ.EVP_MD)* evp_md, const (void)* key, int key_len, const (ubyte)* d, size_t n, ubyte* md, uint* md_len); 119 int HMAC_CTX_copy(.HMAC_CTX* dctx, .HMAC_CTX* sctx); 120 121 void HMAC_CTX_set_flags(.HMAC_CTX* ctx, core.stdc.config.c_ulong flags); 122 const (libressl_d.openssl.ossl_typ.EVP_MD)* HMAC_CTX_get_md(const (.HMAC_CTX)* ctx);