1 /* 2 * Copyright 1995-2025 The OpenSSL Project Authors. All Rights Reserved. 3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved 4 * 5 * Licensed under the Apache License 2.0 (the "License"). You may not use 6 * this file except in compliance with the License. You can obtain a copy 7 * in the file LICENSE in the source distribution or at 8 * https://www.openssl.org/source/license.html 9 */ 10 11 #ifndef OPENSSL_SSL3_H 12 #define OPENSSL_SSL3_H 13 #pragma once 14 15 #include <openssl/macros.h> 16 #ifndef OPENSSL_NO_DEPRECATED_3_0 17 #define HEADER_SSL3_H 18 #endif 19 20 #include <openssl/comp.h> 21 #include <openssl/buffer.h> 22 #include <openssl/evp.h> 23 #include <openssl/ssl.h> 24 25 #ifdef __cplusplus 26 extern "C" { 27 #endif 28 29 /* 30 * Signalling cipher suite value from RFC 5746 31 * (TLS_EMPTY_RENEGOTIATION_INFO_SCSV) 32 */ 33 #define SSL3_CK_SCSV 0x030000FF 34 35 /* 36 * Signalling cipher suite value from draft-ietf-tls-downgrade-scsv-00 37 * (TLS_FALLBACK_SCSV) 38 */ 39 #define SSL3_CK_FALLBACK_SCSV 0x03005600 40 41 #define SSL3_CK_RSA_NULL_MD5 0x03000001 42 #define SSL3_CK_RSA_NULL_SHA 0x03000002 43 #define SSL3_CK_RSA_RC4_40_MD5 0x03000003 44 #define SSL3_CK_RSA_RC4_128_MD5 0x03000004 45 #define SSL3_CK_RSA_RC4_128_SHA 0x03000005 46 #define SSL3_CK_RSA_RC2_40_MD5 0x03000006 47 #define SSL3_CK_RSA_IDEA_128_SHA 0x03000007 48 #define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008 49 #define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009 50 #define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A 51 52 #define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B 53 #define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C 54 #define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D 55 #define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E 56 #define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F 57 #define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010 58 59 #define SSL3_CK_DHE_DSS_DES_40_CBC_SHA 0x03000011 60 #define SSL3_CK_EDH_DSS_DES_40_CBC_SHA SSL3_CK_DHE_DSS_DES_40_CBC_SHA 61 #define SSL3_CK_DHE_DSS_DES_64_CBC_SHA 0x03000012 62 #define SSL3_CK_EDH_DSS_DES_64_CBC_SHA SSL3_CK_DHE_DSS_DES_64_CBC_SHA 63 #define SSL3_CK_DHE_DSS_DES_192_CBC3_SHA 0x03000013 64 #define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA SSL3_CK_DHE_DSS_DES_192_CBC3_SHA 65 #define SSL3_CK_DHE_RSA_DES_40_CBC_SHA 0x03000014 66 #define SSL3_CK_EDH_RSA_DES_40_CBC_SHA SSL3_CK_DHE_RSA_DES_40_CBC_SHA 67 #define SSL3_CK_DHE_RSA_DES_64_CBC_SHA 0x03000015 68 #define SSL3_CK_EDH_RSA_DES_64_CBC_SHA SSL3_CK_DHE_RSA_DES_64_CBC_SHA 69 #define SSL3_CK_DHE_RSA_DES_192_CBC3_SHA 0x03000016 70 #define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA SSL3_CK_DHE_RSA_DES_192_CBC3_SHA 71 72 #define SSL3_CK_ADH_RC4_40_MD5 0x03000017 73 #define SSL3_CK_ADH_RC4_128_MD5 0x03000018 74 #define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019 75 #define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A 76 #define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B 77 78 /* a bundle of RFC standard cipher names, generated from ssl3_ciphers[] */ 79 #define SSL3_RFC_RSA_NULL_MD5 "TLS_RSA_WITH_NULL_MD5" 80 #define SSL3_RFC_RSA_NULL_SHA "TLS_RSA_WITH_NULL_SHA" 81 #define SSL3_RFC_RSA_DES_192_CBC3_SHA "TLS_RSA_WITH_3DES_EDE_CBC_SHA" 82 #define SSL3_RFC_DHE_DSS_DES_192_CBC3_SHA "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA" 83 #define SSL3_RFC_DHE_RSA_DES_192_CBC3_SHA "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA" 84 #define SSL3_RFC_ADH_DES_192_CBC_SHA "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA" 85 #define SSL3_RFC_RSA_IDEA_128_SHA "TLS_RSA_WITH_IDEA_CBC_SHA" 86 #define SSL3_RFC_RSA_RC4_128_MD5 "TLS_RSA_WITH_RC4_128_MD5" 87 #define SSL3_RFC_RSA_RC4_128_SHA "TLS_RSA_WITH_RC4_128_SHA" 88 #define SSL3_RFC_ADH_RC4_128_MD5 "TLS_DH_anon_WITH_RC4_128_MD5" 89 90 #define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5" 91 #define SSL3_TXT_RSA_NULL_SHA "NULL-SHA" 92 #define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5" 93 #define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5" 94 #define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA" 95 #define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5" 96 #define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA" 97 #define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA" 98 #define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA" 99 #define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA" 100 101 #define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA" 102 #define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA" 103 #define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA" 104 #define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA" 105 #define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA" 106 #define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA" 107 108 #define SSL3_TXT_DHE_DSS_DES_40_CBC_SHA "EXP-DHE-DSS-DES-CBC-SHA" 109 #define SSL3_TXT_DHE_DSS_DES_64_CBC_SHA "DHE-DSS-DES-CBC-SHA" 110 #define SSL3_TXT_DHE_DSS_DES_192_CBC3_SHA "DHE-DSS-DES-CBC3-SHA" 111 #define SSL3_TXT_DHE_RSA_DES_40_CBC_SHA "EXP-DHE-RSA-DES-CBC-SHA" 112 #define SSL3_TXT_DHE_RSA_DES_64_CBC_SHA "DHE-RSA-DES-CBC-SHA" 113 #define SSL3_TXT_DHE_RSA_DES_192_CBC3_SHA "DHE-RSA-DES-CBC3-SHA" 114 115 /* 116 * This next block of six "EDH" labels is for backward compatibility with 117 * older versions of OpenSSL. New code should use the six "DHE" labels above 118 * instead: 119 */ 120 #define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA" 121 #define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA" 122 #define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA" 123 #define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA" 124 #define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA" 125 #define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA" 126 127 #define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5" 128 #define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5" 129 #define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA" 130 #define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA" 131 #define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA" 132 133 #define SSL3_SSL_SESSION_ID_LENGTH 32 134 #define SSL3_MAX_SSL_SESSION_ID_LENGTH 32 135 136 #define SSL3_MASTER_SECRET_SIZE 48 137 #define SSL3_RANDOM_SIZE 32 138 #define SSL3_SESSION_ID_SIZE 32 139 #define SSL3_RT_HEADER_LENGTH 5 140 141 #define SSL3_HM_HEADER_LENGTH 4 142 143 #ifndef SSL3_ALIGN_PAYLOAD 144 /* 145 * Some will argue that this increases memory footprint, but it's not 146 * actually true. Point is that malloc has to return at least 64-bit aligned 147 * pointers, meaning that allocating 5 bytes wastes 3 bytes in either case. 148 * Suggested pre-gaping simply moves these wasted bytes from the end of 149 * allocated region to its front, but makes data payload aligned, which 150 * improves performance:-) 151 */ 152 #define SSL3_ALIGN_PAYLOAD 8 153 #else 154 #if (SSL3_ALIGN_PAYLOAD & (SSL3_ALIGN_PAYLOAD - 1)) != 0 155 #error "insane SSL3_ALIGN_PAYLOAD" 156 #undef SSL3_ALIGN_PAYLOAD 157 #endif 158 #endif 159 160 /* 161 * This is the maximum MAC (digest) size used by the SSL library. Currently 162 * maximum of 20 is used by SHA1, but we reserve for future extension for 163 * 512-bit hashes. 164 */ 165 166 #define SSL3_RT_MAX_MD_SIZE 64 167 168 /* 169 * Maximum block size used in all ciphersuites. Currently 16 for AES. 170 */ 171 172 #define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16 173 174 #define SSL3_RT_MAX_EXTRA (16384) 175 176 /* Maximum plaintext length: defined by SSL/TLS standards */ 177 #define SSL3_RT_MAX_PLAIN_LENGTH 16384 178 /* Maximum compression overhead: defined by SSL/TLS standards */ 179 #define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024 180 181 /* 182 * The standards give a maximum encryption overhead of 1024 bytes. In 183 * practice the value is lower than this. The overhead is the maximum number 184 * of padding bytes (256) plus the mac size. 185 */ 186 #define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE) 187 #define SSL3_RT_MAX_TLS13_ENCRYPTED_OVERHEAD 256 188 189 /* 190 * OpenSSL currently only uses a padding length of at most one block so the 191 * send overhead is smaller. 192 */ 193 194 #define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \ 195 (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE) 196 197 /* If compression isn't used don't include the compression overhead */ 198 199 #ifdef OPENSSL_NO_COMP 200 #define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH 201 #else 202 #define SSL3_RT_MAX_COMPRESSED_LENGTH \ 203 (SSL3_RT_MAX_PLAIN_LENGTH + SSL3_RT_MAX_COMPRESSED_OVERHEAD) 204 #endif 205 #define SSL3_RT_MAX_ENCRYPTED_LENGTH \ 206 (SSL3_RT_MAX_ENCRYPTED_OVERHEAD + SSL3_RT_MAX_COMPRESSED_LENGTH) 207 #define SSL3_RT_MAX_TLS13_ENCRYPTED_LENGTH \ 208 (SSL3_RT_MAX_PLAIN_LENGTH + SSL3_RT_MAX_TLS13_ENCRYPTED_OVERHEAD) 209 #define SSL3_RT_MAX_PACKET_SIZE \ 210 (SSL3_RT_MAX_ENCRYPTED_LENGTH + SSL3_RT_HEADER_LENGTH) 211 212 #define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54" 213 #define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52" 214 215 /* SSL3_VERSION is defined in prov_ssl.h */ 216 #define SSL3_VERSION_MAJOR 0x03 217 #define SSL3_VERSION_MINOR 0x00 218 219 #define SSL3_RT_CHANGE_CIPHER_SPEC 20 220 #define SSL3_RT_ALERT 21 221 #define SSL3_RT_HANDSHAKE 22 222 #define SSL3_RT_APPLICATION_DATA 23 223 224 /* Pseudo content types to indicate additional parameters */ 225 #define TLS1_RT_CRYPTO 0x1000 226 #define TLS1_RT_CRYPTO_PREMASTER (TLS1_RT_CRYPTO | 0x1) 227 #define TLS1_RT_CRYPTO_CLIENT_RANDOM (TLS1_RT_CRYPTO | 0x2) 228 #define TLS1_RT_CRYPTO_SERVER_RANDOM (TLS1_RT_CRYPTO | 0x3) 229 #define TLS1_RT_CRYPTO_MASTER (TLS1_RT_CRYPTO | 0x4) 230 231 #define TLS1_RT_CRYPTO_READ 0x0000 232 #define TLS1_RT_CRYPTO_WRITE 0x0100 233 #define TLS1_RT_CRYPTO_MAC (TLS1_RT_CRYPTO | 0x5) 234 #define TLS1_RT_CRYPTO_KEY (TLS1_RT_CRYPTO | 0x6) 235 #define TLS1_RT_CRYPTO_IV (TLS1_RT_CRYPTO | 0x7) 236 #define TLS1_RT_CRYPTO_FIXED_IV (TLS1_RT_CRYPTO | 0x8) 237 238 /* Pseudo content types for SSL/TLS header info */ 239 #define SSL3_RT_HEADER 0x100 240 #define SSL3_RT_INNER_CONTENT_TYPE 0x101 241 242 /* Pseudo content types for QUIC */ 243 #define SSL3_RT_QUIC_DATAGRAM 0x200 244 #define SSL3_RT_QUIC_PACKET 0x201 245 #define SSL3_RT_QUIC_FRAME_FULL 0x202 246 #define SSL3_RT_QUIC_FRAME_HEADER 0x203 247 #define SSL3_RT_QUIC_FRAME_PADDING 0x204 248 249 #define SSL3_AL_WARNING 1 250 #define SSL3_AL_FATAL 2 251 252 #define SSL3_AD_CLOSE_NOTIFY 0 253 #define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */ 254 #define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */ 255 #define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */ 256 #define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */ 257 #define SSL3_AD_NO_CERTIFICATE 41 258 #define SSL3_AD_BAD_CERTIFICATE 42 259 #define SSL3_AD_UNSUPPORTED_CERTIFICATE 43 260 #define SSL3_AD_CERTIFICATE_REVOKED 44 261 #define SSL3_AD_CERTIFICATE_EXPIRED 45 262 #define SSL3_AD_CERTIFICATE_UNKNOWN 46 263 #define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */ 264 265 #define TLS1_HB_REQUEST 1 266 #define TLS1_HB_RESPONSE 2 267 268 #define SSL3_CT_RSA_SIGN 1 269 #define SSL3_CT_DSS_SIGN 2 270 #define SSL3_CT_RSA_FIXED_DH 3 271 #define SSL3_CT_DSS_FIXED_DH 4 272 #define SSL3_CT_RSA_EPHEMERAL_DH 5 273 #define SSL3_CT_DSS_EPHEMERAL_DH 6 274 #define SSL3_CT_FORTEZZA_DMS 20 275 /* 276 * SSL3_CT_NUMBER is used to size arrays and it must be large enough to 277 * contain all of the cert types defined for *either* SSLv3 and TLSv1. 278 */ 279 #define SSL3_CT_NUMBER 12 280 281 #if defined(TLS_CT_NUMBER) 282 #if TLS_CT_NUMBER != SSL3_CT_NUMBER 283 #error "SSL/TLS CT_NUMBER values do not match" 284 #endif 285 #endif 286 287 /* No longer used as of OpenSSL 1.1.1 */ 288 #define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001 289 290 /* Removed from OpenSSL 1.1.0 */ 291 #define TLS1_FLAGS_TLS_PADDING_BUG 0x0 292 293 #define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010 294 295 /* Set if we encrypt then mac instead of usual mac then encrypt */ 296 #define TLS1_FLAGS_ENCRYPT_THEN_MAC_READ 0x0100 297 #define TLS1_FLAGS_ENCRYPT_THEN_MAC TLS1_FLAGS_ENCRYPT_THEN_MAC_READ 298 299 /* Set if extended master secret extension received from peer */ 300 #define TLS1_FLAGS_RECEIVED_EXTMS 0x0200 301 302 #define TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE 0x0400 303 304 #define TLS1_FLAGS_STATELESS 0x0800 305 306 /* Set if extended master secret extension required on renegotiation */ 307 #define TLS1_FLAGS_REQUIRED_EXTMS 0x1000 308 309 /* 0x2000 is reserved for TLS1_FLAGS_QUIC (internal) */ 310 /* 0x4000 is reserved for TLS1_FLAGS_QUIC_INTERNAL (internal) */ 311 312 #define SSL3_MT_HELLO_REQUEST 0 313 #define SSL3_MT_CLIENT_HELLO 1 314 #define SSL3_MT_SERVER_HELLO 2 315 #define SSL3_MT_NEWSESSION_TICKET 4 316 #define SSL3_MT_END_OF_EARLY_DATA 5 317 #define SSL3_MT_ENCRYPTED_EXTENSIONS 8 318 #define SSL3_MT_CERTIFICATE 11 319 #define SSL3_MT_SERVER_KEY_EXCHANGE 12 320 #define SSL3_MT_CERTIFICATE_REQUEST 13 321 #define SSL3_MT_SERVER_DONE 14 322 #define SSL3_MT_CERTIFICATE_VERIFY 15 323 #define SSL3_MT_CLIENT_KEY_EXCHANGE 16 324 #define SSL3_MT_FINISHED 20 325 #define SSL3_MT_CERTIFICATE_URL 21 326 #define SSL3_MT_CERTIFICATE_STATUS 22 327 #define SSL3_MT_SUPPLEMENTAL_DATA 23 328 #define SSL3_MT_KEY_UPDATE 24 329 #define SSL3_MT_COMPRESSED_CERTIFICATE 25 330 #ifndef OPENSSL_NO_NEXTPROTONEG 331 #define SSL3_MT_NEXT_PROTO 67 332 #endif 333 #define SSL3_MT_MESSAGE_HASH 254 334 #define DTLS1_MT_HELLO_VERIFY_REQUEST 3 335 336 /* Dummy message type for handling CCS like a normal handshake message */ 337 #define SSL3_MT_CHANGE_CIPHER_SPEC 0x0101 338 339 #define SSL3_MT_CCS 1 340 341 /* These are used when changing over to a new cipher */ 342 #define SSL3_CC_READ 0x001 343 #define SSL3_CC_WRITE 0x002 344 #define SSL3_CC_CLIENT 0x010 345 #define SSL3_CC_SERVER 0x020 346 #define SSL3_CC_EARLY 0x040 347 #define SSL3_CC_HANDSHAKE 0x080 348 #define SSL3_CC_APPLICATION 0x100 349 #define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT | SSL3_CC_WRITE) 350 #define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER | SSL3_CC_READ) 351 #define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT | SSL3_CC_READ) 352 #define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER | SSL3_CC_WRITE) 353 354 #ifdef __cplusplus 355 } 356 #endif 357 #endif 358
Indexes created Sat Jun 27 00:24:51 UTC 2026