bsd/nfs/nfs_gss_crypto.h

   1 /*
   2  * Copyright (c) 2008 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29
  30 #ifndef _NFS_NFS_GSS_CRYPTO_H_
  31 #define _NFS_NFS_GSS_CRYPTO_H_
  32 #include <libkern/libkern.h>
  33 #include <libkern/crypto/sha1.h>
  34 #include <libkern/crypto/md5.h>
  35 #include <libkern/crypto/des.h>
  36
  37 #define KG_USAGE_SEAL 22
  38 #define KG_USAGE_SIGN 23
  39 #define KG_USAGE_SEQ  24
  40
  41 #define KEY_USAGE_DES3_SEAL (const unsigned char *)"\x00\x00\x00\x16\xaa"
  42 #define KEY_USAGE_DES3_SIGN (const unsigned char *)"\x00\x00\x00\x17\x99"
  43 #define KEY_USAGE_DES3_SEQ  (const unsigned char *)"\x00\x00\x00\x18\x55"
  44 #define KEY_USAGE_LEN 5
  45
  46 typedef struct {
  47         SHA1_CTX sha1_ctx;
  48         des_cblock dk[3];
  49 } HMAC_SHA1_DES3KD_CTX;
  50
  51 typedef struct {
  52         MD5_CTX md5_ctx;
  53         des_cbc_key_schedule *sched;
  54 } MD5_DESCBC_CTX;
  55
  56 #define MD5_DESCBC_DIGEST_LENGTH 8
  57
  58 __BEGIN_DECLS
  59
  60 void krb5_nfold(unsigned int, const unsigned char *, unsigned int, unsigned char *);
  61 void des3_make_key(const unsigned char[21], des_cblock[3]);
  62 int des3_derive_key(des_cblock[3], des_cblock[3], const unsigned char *, int);
  63
  64 void HMAC_SHA1_DES3KD_Init(HMAC_SHA1_DES3KD_CTX *, des_cblock[3], int);
  65 void HMAC_SHA1_DES3KD_Update(HMAC_SHA1_DES3KD_CTX *, void *, size_t);
  66 void HMAC_SHA1_DES3KD_Final(void *, HMAC_SHA1_DES3KD_CTX *);
  67
  68 void MD5_DESCBC_Init(MD5_DESCBC_CTX *, des_cbc_key_schedule *);
  69 void MD5_DESCBC_Update(MD5_DESCBC_CTX *, void *, size_t);
  70 void MD5_DESCBC_Final(void *, MD5_DESCBC_CTX *);
  71
  72 __END_DECLS
  73
  74 #endif /* _NFS_NFS_GSS_CRYPTO_H_ */