xref: /illumos-gate/usr/src/common/crypto/blowfish/blowfish_impl.h (revision 533affcbc7fc4d0c8132976ea454aaa715fe2307)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_BLOWFISH_IMPL_H
27 #define	_BLOWFISH_IMPL_H
28 
29 /*
30  * Common definitions used by Blowfish.
31  */
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 #define	BLOWFISH_COPY_BLOCK(src, dst) \
38 	(dst)[0] = (src)[0]; \
39 	(dst)[1] = (src)[1]; \
40 	(dst)[2] = (src)[2]; \
41 	(dst)[3] = (src)[3]; \
42 	(dst)[4] = (src)[4]; \
43 	(dst)[5] = (src)[5]; \
44 	(dst)[6] = (src)[6]; \
45 	(dst)[7] = (src)[7]
46 
47 #define	BLOWFISH_XOR_BLOCK(src, dst) \
48 	(dst)[0] ^= (src)[0]; \
49 	(dst)[1] ^= (src)[1]; \
50 	(dst)[2] ^= (src)[2]; \
51 	(dst)[3] ^= (src)[3]; \
52 	(dst)[4] ^= (src)[4]; \
53 	(dst)[5] ^= (src)[5]; \
54 	(dst)[6] ^= (src)[6]; \
55 	(dst)[7] ^= (src)[7]
56 
57 #define	BLOWFISH_MINBITS	32
58 #define	BLOWFISH_MINBYTES	(BLOWFISH_MINBITS >> 3)
59 #define	BLOWFISH_MAXBITS	448
60 #define	BLOWFISH_MAXBYTES	(BLOWFISH_MAXBITS >> 3)
61 
62 #define	BLOWFISH_IV_LEN		8
63 #define	BLOWFISH_BLOCK_LEN	8
64 #define	BLOWFISH_KEY_INCREMENT	8
65 #define	BLOWFISH_DEFAULT	128
66 
67 extern int blowfish_encrypt_contiguous_blocks(void *, char *, size_t,
68     crypto_data_t *);
69 extern int blowfish_decrypt_contiguous_blocks(void *, char *, size_t,
70     crypto_data_t *);
71 extern int blowfish_encrypt_block(const void *, const uint8_t *, uint8_t *);
72 extern int blowfish_decrypt_block(const void *, const uint8_t *, uint8_t *);
73 extern void blowfish_init_keysched(uint8_t *, uint_t, void *);
74 extern void *blowfish_alloc_keysched(size_t *, int);
75 extern void blowfish_copy_block(uint8_t *, uint8_t *);
76 extern void blowfish_xor_block(uint8_t *, uint8_t *);
77 #ifdef	__cplusplus
78 }
79 #endif
80 
81 #endif	/* _BLOWFISH_IMPL_H */
82