1 /* $NetBSD: crypto.h,v 1.4 2023/06/19 21:41:44 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1997 - 2016 Kungliga Tekniska Hgskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * 3. Neither the name of the Institute nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef HEIMDAL_SMALLER 37 #define DES3_OLD_ENCTYPE 1 38 #endif 39 40 struct _krb5_key_data { 41 krb5_keyblock *key; 42 krb5_data *schedule; 43 }; 44 45 struct _krb5_key_usage; 46 47 struct krb5_crypto_data { 48 struct _krb5_encryption_type *et; 49 struct _krb5_key_data key; 50 int num_key_usage; 51 struct _krb5_key_usage *key_usage; 52 }; 53 54 #define CRYPTO_ETYPE(C) ((C)->et->type) 55 56 /* bits for `flags' below */ 57 #define F_KEYED 0x0001 /* checksum is keyed */ 58 #define F_CPROOF 0x0002 /* checksum is collision proof */ 59 #define F_DERIVED 0x0004 /* uses derived keys */ 60 #define F_VARIANT 0x0008 /* uses `variant' keys (6.4.3) */ 61 #define F_PSEUDO 0x0010 /* not a real protocol type */ 62 #define F_DISABLED 0x0020 /* enctype/checksum disabled */ 63 #define F_WEAK 0x0040 /* enctype is considered weak */ 64 65 #define F_RFC3961_ENC 0x0100 /* RFC3961 simplified profile */ 66 #define F_SPECIAL 0x0200 /* backwards */ 67 #define F_ENC_THEN_CKSUM 0x0400 /* checksum is over encrypted data */ 68 #define F_CRYPTO_MASK 0x0F00 69 70 #define F_RFC3961_KDF 0x1000 /* RFC3961 KDF */ 71 #define F_SP800_108_HMAC_KDF 0x2000 /* SP800-108 HMAC KDF */ 72 #define F_KDF_MASK 0xF000 73 74 struct salt_type { 75 krb5_salttype type; 76 const char *name; 77 krb5_error_code (*string_to_key)(krb5_context, krb5_enctype, krb5_data, 78 krb5_salt, krb5_data, krb5_keyblock*); 79 }; 80 81 struct _krb5_key_type { 82 krb5_enctype type; 83 const char *name; 84 size_t bits; 85 size_t size; 86 size_t schedule_size; 87 void (*random_key)(krb5_context, krb5_keyblock*); 88 void (*schedule)(krb5_context, struct _krb5_key_type *, struct _krb5_key_data *); 89 struct salt_type *string_to_key; 90 void (*random_to_key)(krb5_context, krb5_keyblock*, const void*, size_t); 91 void (*cleanup)(krb5_context, struct _krb5_key_data *); 92 const EVP_CIPHER *(*evp)(void); 93 }; 94 95 struct _krb5_checksum_type { 96 krb5_cksumtype type; 97 const char *name; 98 size_t blocksize; 99 size_t checksumsize; 100 unsigned flags; 101 krb5_error_code (*checksum)(krb5_context context, 102 struct _krb5_key_data *key, 103 const void *buf, size_t len, 104 unsigned usage, 105 Checksum *csum); 106 krb5_error_code (*verify)(krb5_context context, 107 struct _krb5_key_data *key, 108 const void *buf, size_t len, 109 unsigned usage, 110 Checksum *csum); 111 }; 112 113 struct _krb5_encryption_type { 114 krb5_enctype type; 115 const char *name; 116 const char *alias; 117 size_t blocksize; 118 size_t padsize; 119 size_t confoundersize; 120 struct _krb5_key_type *keytype; 121 struct _krb5_checksum_type *checksum; 122 struct _krb5_checksum_type *keyed_checksum; 123 unsigned flags; 124 krb5_error_code (*encrypt)(krb5_context context, 125 struct _krb5_key_data *key, 126 void *data, size_t len, 127 krb5_boolean encryptp, 128 int usage, 129 void *ivec); 130 size_t prf_length; 131 krb5_error_code (*prf)(krb5_context, 132 krb5_crypto, const krb5_data *, krb5_data *); 133 }; 134 135 #define ENCRYPTION_USAGE(U) ((int32_t)((((uint32_t)(U)) << 8)) | 0xAA) 136 #define INTEGRITY_USAGE(U) ((int32_t)((((uint32_t)(U)) << 8)) | 0x55) 137 #define CHECKSUM_USAGE(U) ((int32_t)((((uint32_t)(U)) << 8)) | 0x99) 138 139 /* Checksums */ 140 141 extern struct _krb5_checksum_type _krb5_checksum_none; 142 extern struct _krb5_checksum_type _krb5_checksum_crc32; 143 extern struct _krb5_checksum_type _krb5_checksum_rsa_md4; 144 extern struct _krb5_checksum_type _krb5_checksum_rsa_md4_des; 145 extern struct _krb5_checksum_type _krb5_checksum_rsa_md5_des; 146 extern struct _krb5_checksum_type _krb5_checksum_rsa_md5_des3; 147 extern struct _krb5_checksum_type _krb5_checksum_rsa_md5; 148 extern struct _krb5_checksum_type _krb5_checksum_hmac_sha1_des3; 149 extern struct _krb5_checksum_type _krb5_checksum_hmac_sha1_aes128; 150 extern struct _krb5_checksum_type _krb5_checksum_hmac_sha1_aes256; 151 extern struct _krb5_checksum_type _krb5_checksum_hmac_sha256_128_aes128; 152 extern struct _krb5_checksum_type _krb5_checksum_hmac_sha384_192_aes256; 153 extern struct _krb5_checksum_type _krb5_checksum_hmac_md5; 154 extern struct _krb5_checksum_type _krb5_checksum_sha1; 155 extern struct _krb5_checksum_type _krb5_checksum_sha2; 156 157 extern struct _krb5_checksum_type *_krb5_checksum_types[]; 158 extern int _krb5_num_checksums; 159 160 /* Salts */ 161 162 extern struct salt_type _krb5_AES_SHA1_salt[]; 163 extern struct salt_type _krb5_AES_SHA2_salt[]; 164 extern struct salt_type _krb5_arcfour_salt[]; 165 extern struct salt_type _krb5_des_salt[]; 166 extern struct salt_type _krb5_des3_salt[]; 167 extern struct salt_type _krb5_des3_salt_derived[]; 168 169 /* Encryption types */ 170 171 extern struct _krb5_encryption_type _krb5_enctype_aes256_cts_hmac_sha1; 172 extern struct _krb5_encryption_type _krb5_enctype_aes128_cts_hmac_sha1; 173 extern struct _krb5_encryption_type _krb5_enctype_aes128_cts_hmac_sha256_128; 174 extern struct _krb5_encryption_type _krb5_enctype_aes256_cts_hmac_sha384_192; 175 extern struct _krb5_encryption_type _krb5_enctype_des3_cbc_sha1; 176 extern struct _krb5_encryption_type _krb5_enctype_des3_cbc_md5; 177 extern struct _krb5_encryption_type _krb5_enctype_des3_cbc_none; 178 extern struct _krb5_encryption_type _krb5_enctype_arcfour_hmac_md5; 179 extern struct _krb5_encryption_type _krb5_enctype_des_cbc_md5; 180 extern struct _krb5_encryption_type _krb5_enctype_old_des3_cbc_sha1; 181 extern struct _krb5_encryption_type _krb5_enctype_des_cbc_crc; 182 extern struct _krb5_encryption_type _krb5_enctype_des_cbc_md4; 183 extern struct _krb5_encryption_type _krb5_enctype_des_cbc_md5; 184 extern struct _krb5_encryption_type _krb5_enctype_des_cbc_none; 185 extern struct _krb5_encryption_type _krb5_enctype_des_cfb64_none; 186 extern struct _krb5_encryption_type _krb5_enctype_des_pcbc_none; 187 extern struct _krb5_encryption_type _krb5_enctype_null; 188 189 extern struct _krb5_encryption_type *_krb5_etypes[]; 190 extern int _krb5_num_etypes; 191 192 /* NO_HCRYPTO_POLLUTION is defined in pkinit-ec.c. See commentary there. */ 193 #ifndef NO_HCRYPTO_POLLUTION 194 /* Interface to the EVP crypto layer provided by hcrypto */ 195 struct _krb5_evp_schedule { 196 /* 197 * Normally we'd say EVP_CIPHER_CTX here, but! this header gets 198 * included in lib/krb5/pkinit-ec.ck 199 */ 200 EVP_CIPHER_CTX *ectx; 201 EVP_CIPHER_CTX *dctx; 202 }; 203 #endif 204
Indexes created Wed Jun 24 00:24:50 UTC 2026