1/* ssl/ssl3.h */ 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 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/* ==================================================================== 59 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in 70 * the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3. All advertising materials mentioning features or use of this 74 * software must display the following acknowledgment: 75 * "This product includes software developed by the OpenSSL Project 76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77 * 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79 * endorse or promote products derived from this software without 80 * prior written permission. For written permission, please contact 81 * openssl-core@openssl.org. 82 * 83 * 5. Products derived from this software may not be called "OpenSSL" 84 * nor may "OpenSSL" appear in their names without prior written 85 * permission of the OpenSSL Project. 86 * 87 * 6. Redistributions of any form whatsoever must retain the following 88 * acknowledgment: 89 * "This product includes software developed by the OpenSSL Project 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91 * 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103 * OF THE POSSIBILITY OF SUCH DAMAGE. 104 * ==================================================================== 105 * 106 * This product includes cryptographic software written by Eric Young 107 * (eay@cryptsoft.com). This product includes software written by Tim 108 * Hudson (tjh@cryptsoft.com). 109 * 110 */ 111/* ==================================================================== 112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 113 * ECC cipher suite support in OpenSSL originally developed by 114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. 115 */ 116 117#ifndef OPENSSL_HEADER_SSL3_H 118#define OPENSSL_HEADER_SSL3_H 119 120#include <openssl/aead.h> 121#include <openssl/type_check.h> 122 123#ifdef __cplusplus 124extern "C" { 125#endif 126 127 128// These are kept to support clients that negotiates higher protocol versions 129// using SSLv2 client hello records. 130#define SSL2_MT_CLIENT_HELLO 1 131#define SSL2_VERSION 0x0002 132 133// Signalling cipher suite value from RFC 5746. 134#define SSL3_CK_SCSV 0x030000FF 135// Fallback signalling cipher suite value from RFC 7507. 136#define SSL3_CK_FALLBACK_SCSV 0x03005600 137 138#define SSL3_CK_RSA_NULL_MD5 0x03000001 139#define SSL3_CK_RSA_NULL_SHA 0x03000002 140#define SSL3_CK_RSA_RC4_40_MD5 0x03000003 141#define SSL3_CK_RSA_RC4_128_MD5 0x03000004 142#define SSL3_CK_RSA_RC4_128_SHA 0x03000005 143#define SSL3_CK_RSA_RC2_40_MD5 0x03000006 144#define SSL3_CK_RSA_IDEA_128_SHA 0x03000007 145#define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008 146#define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009 147#define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A 148 149#define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B 150#define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C 151#define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D 152#define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E 153#define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F 154#define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010 155 156#define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011 157#define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012 158#define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013 159#define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014 160#define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015 161#define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016 162 163#define SSL3_CK_ADH_RC4_40_MD5 0x03000017 164#define SSL3_CK_ADH_RC4_128_MD5 0x03000018 165#define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019 166#define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A 167#define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B 168 169#define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5" 170#define SSL3_TXT_RSA_NULL_SHA "NULL-SHA" 171#define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5" 172#define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5" 173#define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA" 174#define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5" 175#define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA" 176#define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA" 177#define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA" 178#define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA" 179 180#define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA" 181#define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA" 182#define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA" 183#define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA" 184#define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA" 185#define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA" 186 187#define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA" 188#define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA" 189#define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA" 190#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA" 191#define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA" 192#define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA" 193 194#define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5" 195#define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5" 196#define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA" 197#define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA" 198#define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA" 199 200#define SSL3_SSL_SESSION_ID_LENGTH 32 201#define SSL3_MAX_SSL_SESSION_ID_LENGTH 32 202 203#define SSL3_MASTER_SECRET_SIZE 48 204#define SSL3_RANDOM_SIZE 32 205#define SSL3_SESSION_ID_SIZE 32 206#define SSL3_RT_HEADER_LENGTH 5 207 208#define SSL3_HM_HEADER_LENGTH 4 209 210#ifndef SSL3_ALIGN_PAYLOAD 211// Some will argue that this increases memory footprint, but it's not actually 212// true. Point is that malloc has to return at least 64-bit aligned pointers, 213// meaning that allocating 5 bytes wastes 3 bytes in either case. Suggested 214// pre-gaping simply moves these wasted bytes from the end of allocated region 215// to its front, but makes data payload aligned, which improves performance. 216#define SSL3_ALIGN_PAYLOAD 8 217#else 218#if (SSL3_ALIGN_PAYLOAD & (SSL3_ALIGN_PAYLOAD - 1)) != 0 219#error "insane SSL3_ALIGN_PAYLOAD" 220#undef SSL3_ALIGN_PAYLOAD 221#endif 222#endif 223 224// This is the maximum MAC (digest) size used by the SSL library. Currently 225// maximum of 20 is used by SHA1, but we reserve for future extension for 226// 512-bit hashes. 227 228#define SSL3_RT_MAX_MD_SIZE 64 229 230// Maximum block size used in all ciphersuites. Currently 16 for AES. 231 232#define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16 233 234// Maximum plaintext length: defined by SSL/TLS standards 235#define SSL3_RT_MAX_PLAIN_LENGTH 16384 236// Maximum compression overhead: defined by SSL/TLS standards 237#define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024 238 239// The standards give a maximum encryption overhead of 1024 bytes. In practice 240// the value is lower than this. The overhead is the maximum number of padding 241// bytes (256) plus the mac size. 242// 243// TODO(davidben): This derivation doesn't take AEADs into account, or TLS 1.1 244// explicit nonces. It happens to work because |SSL3_RT_MAX_MD_SIZE| is larger 245// than necessary and no true AEAD has variable overhead in TLS 1.2. 246#define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE) 247 248// SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD is the maximum overhead in encrypting a 249// record. This does not include the record header. Some ciphers use explicit 250// nonces, so it includes both the AEAD overhead as well as the nonce. 251#define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \ 252 (EVP_AEAD_MAX_OVERHEAD + EVP_AEAD_MAX_NONCE_LENGTH) 253 254OPENSSL_COMPILE_ASSERT( 255 SSL3_RT_MAX_ENCRYPTED_OVERHEAD >= SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD, 256 max_overheads_are_consistent); 257 258// SSL3_RT_MAX_COMPRESSED_LENGTH is an alias for 259// |SSL3_RT_MAX_PLAIN_LENGTH|. Compression is gone, so don't include the 260// compression overhead. 261#define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH 262 263#define SSL3_RT_MAX_ENCRYPTED_LENGTH \ 264 (SSL3_RT_MAX_ENCRYPTED_OVERHEAD + SSL3_RT_MAX_COMPRESSED_LENGTH) 265#define SSL3_RT_MAX_PACKET_SIZE \ 266 (SSL3_RT_MAX_ENCRYPTED_LENGTH + SSL3_RT_HEADER_LENGTH) 267 268#define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54" 269#define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52" 270 271#define SSL3_RT_CHANGE_CIPHER_SPEC 20 272#define SSL3_RT_ALERT 21 273#define SSL3_RT_HANDSHAKE 22 274#define SSL3_RT_APPLICATION_DATA 23 275 276// Pseudo content type for SSL/TLS header info 277#define SSL3_RT_HEADER 0x100 278 279#define SSL3_AL_WARNING 1 280#define SSL3_AL_FATAL 2 281 282#define SSL3_AD_CLOSE_NOTIFY 0 283#define SSL3_AD_UNEXPECTED_MESSAGE 10 // fatal 284#define SSL3_AD_BAD_RECORD_MAC 20 // fatal 285#define SSL3_AD_DECOMPRESSION_FAILURE 30 // fatal 286#define SSL3_AD_HANDSHAKE_FAILURE 40 // fatal 287#define SSL3_AD_NO_CERTIFICATE 41 288#define SSL3_AD_BAD_CERTIFICATE 42 289#define SSL3_AD_UNSUPPORTED_CERTIFICATE 43 290#define SSL3_AD_CERTIFICATE_REVOKED 44 291#define SSL3_AD_CERTIFICATE_EXPIRED 45 292#define SSL3_AD_CERTIFICATE_UNKNOWN 46 293#define SSL3_AD_ILLEGAL_PARAMETER 47 // fatal 294#define SSL3_AD_INAPPROPRIATE_FALLBACK 86 // fatal 295 296#define SSL3_CT_RSA_SIGN 1 297 298#define SSL3_MT_HELLO_REQUEST 0 299#define SSL3_MT_CLIENT_HELLO 1 300#define SSL3_MT_SERVER_HELLO 2 301#define SSL3_MT_NEW_SESSION_TICKET 4 302#define SSL3_MT_END_OF_EARLY_DATA 5 303#define SSL3_MT_HELLO_RETRY_REQUEST 6 304#define SSL3_MT_ENCRYPTED_EXTENSIONS 8 305#define SSL3_MT_CERTIFICATE 11 306#define SSL3_MT_SERVER_KEY_EXCHANGE 12 307#define SSL3_MT_CERTIFICATE_REQUEST 13 308#define SSL3_MT_SERVER_HELLO_DONE 14 309#define SSL3_MT_CERTIFICATE_VERIFY 15 310#define SSL3_MT_CLIENT_KEY_EXCHANGE 16 311#define SSL3_MT_FINISHED 20 312#define SSL3_MT_CERTIFICATE_STATUS 22 313#define SSL3_MT_SUPPLEMENTAL_DATA 23 314#define SSL3_MT_KEY_UPDATE 24 315#define SSL3_MT_NEXT_PROTO 67 316#define SSL3_MT_CHANNEL_ID 203 317#define SSL3_MT_MESSAGE_HASH 254 318#define DTLS1_MT_HELLO_VERIFY_REQUEST 3 319 320// The following are legacy aliases for consumers which use 321// |SSL_CTX_set_msg_callback|. 322#define SSL3_MT_SERVER_DONE SSL3_MT_SERVER_HELLO_DONE 323#define SSL3_MT_NEWSESSION_TICKET SSL3_MT_NEW_SESSION_TICKET 324 325 326#define SSL3_MT_CCS 1 327 328 329#ifdef __cplusplus 330} // extern C 331#endif 332 333#endif // OPENSSL_HEADER_SSL3_H 334