1 /* $FreeBSD: releng/11.2/sys/opencrypto/xform_enc.h 292963 2015-12-30 22:43:07Z allanjude $ */
2 /* $OpenBSD: xform.h,v 1.8 2001/08/28 12:20:43 ben Exp $ */
3
4 /*-
5 * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
6 *
7 * This code was written by Angelos D. Keromytis in Athens, Greece, in
8 * February 2000. Network Security Technologies Inc. (NSTI) kindly
9 * supported the development of this code.
10 *
11 * Copyright (c) 2000 Angelos D. Keromytis
12 * Copyright (c) 2014 The FreeBSD Foundation
13 * All rights reserved.
14 *
15 * Portions of this software were developed by John-Mark Gurney
16 * under sponsorship of the FreeBSD Foundation and
17 * Rubicon Communications, LLC (Netgate).
18 *
19 * Permission to use, copy, and modify this software without fee
20 * is hereby granted, provided that this entire notice is included in
21 * all source code copies of any software which is or includes a copy or
22 * modification of this software.
23 *
24 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
25 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
26 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
27 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
28 * PURPOSE.
29 */
30
31 #ifndef _CRYPTO_XFORM_ENC_H_
32 #define _CRYPTO_XFORM_ENC_H_
33
34 #include <sys/malloc.h>
35 #include <sys/errno.h>
36 #include <crypto/blowfish/blowfish.h>
37 #include <crypto/des/des.h>
38 #include <crypto/rijndael/rijndael.h>
39 #include <crypto/camellia/camellia.h>
40 #include <opencrypto/cast.h>
41 #include <opencrypto/skipjack.h>
42 #include <opencrypto/cryptodev.h>
43 #include <opencrypto/xform_userland.h>
44
45 #define AESICM_BLOCKSIZE AES_BLOCK_LEN
46 #define AES_XTS_BLOCKSIZE 16
47 #define AES_XTS_IVSIZE 8
48 #define AES_XTS_ALPHA 0x87 /* GF(2^128) generator polynomial */
49
50 /* Declarations */
51 struct enc_xform {
52 int type;
53 char *name;
54 u_int16_t blocksize;
55 u_int16_t ivsize;
56 u_int16_t minkey, maxkey;
57 void (*encrypt) (caddr_t, u_int8_t *);
58 void (*decrypt) (caddr_t, u_int8_t *);
59 int (*setkey) (u_int8_t **, u_int8_t *, int len);
60 void (*zerokey) (u_int8_t **);
61 void (*reinit) (caddr_t, u_int8_t *);
62 };
63
64
65 extern struct enc_xform enc_xform_null;
66 extern struct enc_xform enc_xform_des;
67 extern struct enc_xform enc_xform_3des;
68 extern struct enc_xform enc_xform_blf;
69 extern struct enc_xform enc_xform_cast5;
70 extern struct enc_xform enc_xform_skipjack;
71 extern struct enc_xform enc_xform_rijndael128;
72 extern struct enc_xform enc_xform_aes_icm;
73 extern struct enc_xform enc_xform_aes_nist_gcm;
74 extern struct enc_xform enc_xform_aes_nist_gmac;
75 extern struct enc_xform enc_xform_aes_xts;
76 extern struct enc_xform enc_xform_arc4;
77 extern struct enc_xform enc_xform_camellia;
78
79 struct aes_icm_ctx {
80 u_int32_t ac_ek[4*(RIJNDAEL_MAXNR + 1)];
81 /* ac_block is initalized to IV */
82 u_int8_t ac_block[AESICM_BLOCKSIZE];
83 int ac_nr;
84 };
85
86 struct aes_xts_ctx {
87 rijndael_ctx key1;
88 rijndael_ctx key2;
89 u_int8_t tweak[AES_XTS_BLOCKSIZE];
90 };
91
92 #endif /* _CRYPTO_XFORM_ENC_H_ */
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