xref: /openbmc/linux/crypto/anubis.c (revision e868d61272caa648214046a096e5a6bfc068dc8c)
1 /*
2  * Cryptographic API.
3  *
4  * Anubis Algorithm
5  *
6  * The Anubis algorithm was developed by Paulo S. L. M. Barreto and
7  * Vincent Rijmen.
8  *
9  * See
10  *
11  *	P.S.L.M. Barreto, V. Rijmen,
12  *	``The Anubis block cipher,''
13  *	NESSIE submission, 2000.
14  *
15  * This software implements the "tweaked" version of Anubis.
16  * Only the S-box and (consequently) the rounds constants have been
17  * changed.
18  *
19  * The original authors have disclaimed all copyright interest in this
20  * code and thus put it in the public domain. The subsequent authors
21  * have put this under the GNU General Public License.
22  *
23  * By Aaron Grothe ajgrothe@yahoo.com, October 28, 2004
24  *
25  * This program is free software; you can redistribute it and/or modify
26  * it under the terms of the GNU General Public License as published by
27  * the Free Software Foundation; either version 2 of the License, or
28  * (at your option) any later version.
29  *
30  */
31 
32 #include <linux/init.h>
33 #include <linux/module.h>
34 #include <linux/mm.h>
35 #include <asm/byteorder.h>
36 #include <asm/scatterlist.h>
37 #include <linux/crypto.h>
38 #include <linux/types.h>
39 
40 #define ANUBIS_MIN_KEY_SIZE	16
41 #define ANUBIS_MAX_KEY_SIZE	40
42 #define ANUBIS_BLOCK_SIZE	16
43 #define ANUBIS_MAX_N		10
44 #define ANUBIS_MAX_ROUNDS	(8 + ANUBIS_MAX_N)
45 
46 struct anubis_ctx {
47 	int key_len; // in bits
48 	int R;
49 	u32 E[ANUBIS_MAX_ROUNDS + 1][4];
50 	u32 D[ANUBIS_MAX_ROUNDS + 1][4];
51 };
52 
53 static const u32 T0[256] = {
54 	0xba69d2bbU, 0x54a84de5U, 0x2f5ebce2U, 0x74e8cd25U,
55 	0x53a651f7U, 0xd3bb6bd0U, 0xd2b96fd6U, 0x4d9a29b3U,
56 	0x50a05dfdU, 0xac458acfU, 0x8d070e09U, 0xbf63c6a5U,
57 	0x70e0dd3dU, 0x52a455f1U, 0x9a29527bU, 0x4c982db5U,
58 	0xeac98f46U, 0xd5b773c4U, 0x97336655U, 0xd1bf63dcU,
59 	0x3366ccaaU, 0x51a259fbU, 0x5bb671c7U, 0xa651a2f3U,
60 	0xdea15ffeU, 0x48903dadU, 0xa84d9ad7U, 0x992f5e71U,
61 	0xdbab4be0U, 0x3264c8acU, 0xb773e695U, 0xfce5d732U,
62 	0xe3dbab70U, 0x9e214263U, 0x913f7e41U, 0x9b2b567dU,
63 	0xe2d9af76U, 0xbb6bd6bdU, 0x4182199bU, 0x6edca579U,
64 	0xa557aef9U, 0xcb8b0b80U, 0x6bd6b167U, 0x95376e59U,
65 	0xa15fbee1U, 0xf3fbeb10U, 0xb17ffe81U, 0x0204080cU,
66 	0xcc851792U, 0xc49537a2U, 0x1d3a744eU, 0x14285078U,
67 	0xc39b2bb0U, 0x63c69157U, 0xdaa94fe6U, 0x5dba69d3U,
68 	0x5fbe61dfU, 0xdca557f2U, 0x7dfae913U, 0xcd871394U,
69 	0x7ffee11fU, 0x5ab475c1U, 0x6cd8ad75U, 0x5cb86dd5U,
70 	0xf7f3fb08U, 0x264c98d4U, 0xffe3db38U, 0xedc79354U,
71 	0xe8cd874aU, 0x9d274e69U, 0x6fdea17fU, 0x8e010203U,
72 	0x19326456U, 0xa05dbae7U, 0xf0fde71aU, 0x890f1e11U,
73 	0x0f1e3c22U, 0x070e1c12U, 0xaf4386c5U, 0xfbebcb20U,
74 	0x08102030U, 0x152a547eU, 0x0d1a342eU, 0x04081018U,
75 	0x01020406U, 0x64c88d45U, 0xdfa35bf8U, 0x76ecc529U,
76 	0x79f2f90bU, 0xdda753f4U, 0x3d7af48eU, 0x162c5874U,
77 	0x3f7efc82U, 0x376edcb2U, 0x6ddaa973U, 0x3870e090U,
78 	0xb96fdeb1U, 0x73e6d137U, 0xe9cf834cU, 0x356ad4beU,
79 	0x55aa49e3U, 0x71e2d93bU, 0x7bf6f107U, 0x8c050a0fU,
80 	0x72e4d531U, 0x880d1a17U, 0xf6f1ff0eU, 0x2a54a8fcU,
81 	0x3e7cf884U, 0x5ebc65d9U, 0x274e9cd2U, 0x468c0589U,
82 	0x0c183028U, 0x65ca8943U, 0x68d0bd6dU, 0x61c2995bU,
83 	0x03060c0aU, 0xc19f23bcU, 0x57ae41efU, 0xd6b17fceU,
84 	0xd9af43ecU, 0x58b07dcdU, 0xd8ad47eaU, 0x66cc8549U,
85 	0xd7b37bc8U, 0x3a74e89cU, 0xc88d078aU, 0x3c78f088U,
86 	0xfae9cf26U, 0x96316253U, 0xa753a6f5U, 0x982d5a77U,
87 	0xecc59752U, 0xb86ddab7U, 0xc7933ba8U, 0xae4182c3U,
88 	0x69d2b96bU, 0x4b9631a7U, 0xab4b96ddU, 0xa94f9ed1U,
89 	0x67ce814fU, 0x0a14283cU, 0x478e018fU, 0xf2f9ef16U,
90 	0xb577ee99U, 0x224488ccU, 0xe5d7b364U, 0xeec19f5eU,
91 	0xbe61c2a3U, 0x2b56acfaU, 0x811f3e21U, 0x1224486cU,
92 	0x831b362dU, 0x1b366c5aU, 0x0e1c3824U, 0x23468ccaU,
93 	0xf5f7f304U, 0x458a0983U, 0x214284c6U, 0xce811f9eU,
94 	0x499239abU, 0x2c58b0e8U, 0xf9efc32cU, 0xe6d1bf6eU,
95 	0xb671e293U, 0x2850a0f0U, 0x172e5c72U, 0x8219322bU,
96 	0x1a34685cU, 0x8b0b161dU, 0xfee1df3eU, 0x8a09121bU,
97 	0x09122436U, 0xc98f038cU, 0x87132635U, 0x4e9c25b9U,
98 	0xe1dfa37cU, 0x2e5cb8e4U, 0xe4d5b762U, 0xe0dda77aU,
99 	0xebcb8b40U, 0x903d7a47U, 0xa455aaffU, 0x1e3c7844U,
100 	0x85172e39U, 0x60c09d5dU, 0x00000000U, 0x254a94deU,
101 	0xf4f5f702U, 0xf1ffe31cU, 0x94356a5fU, 0x0b162c3aU,
102 	0xe7d3bb68U, 0x75eac923U, 0xefc39b58U, 0x3468d0b8U,
103 	0x3162c4a6U, 0xd4b577c2U, 0xd0bd67daU, 0x86112233U,
104 	0x7efce519U, 0xad478ec9U, 0xfde7d334U, 0x2952a4f6U,
105 	0x3060c0a0U, 0x3b76ec9aU, 0x9f234665U, 0xf8edc72aU,
106 	0xc6913faeU, 0x13264c6aU, 0x060c1814U, 0x050a141eU,
107 	0xc59733a4U, 0x11224466U, 0x77eec12fU, 0x7cf8ed15U,
108 	0x7af4f501U, 0x78f0fd0dU, 0x366cd8b4U, 0x1c387048U,
109 	0x3972e496U, 0x59b279cbU, 0x18306050U, 0x56ac45e9U,
110 	0xb37bf68dU, 0xb07dfa87U, 0x244890d8U, 0x204080c0U,
111 	0xb279f28bU, 0x9239724bU, 0xa35bb6edU, 0xc09d27baU,
112 	0x44880d85U, 0x62c49551U, 0x10204060U, 0xb475ea9fU,
113 	0x84152a3fU, 0x43861197U, 0x933b764dU, 0xc2992fb6U,
114 	0x4a9435a1U, 0xbd67cea9U, 0x8f030605U, 0x2d5ab4eeU,
115 	0xbc65caafU, 0x9c254a6fU, 0x6ad4b561U, 0x40801d9dU,
116 	0xcf831b98U, 0xa259b2ebU, 0x801d3a27U, 0x4f9e21bfU,
117 	0x1f3e7c42U, 0xca890f86U, 0xaa4992dbU, 0x42841591U,
118 };
119 
120 static const u32 T1[256] = {
121 	0x69babbd2U, 0xa854e54dU, 0x5e2fe2bcU, 0xe87425cdU,
122 	0xa653f751U, 0xbbd3d06bU, 0xb9d2d66fU, 0x9a4db329U,
123 	0xa050fd5dU, 0x45accf8aU, 0x078d090eU, 0x63bfa5c6U,
124 	0xe0703dddU, 0xa452f155U, 0x299a7b52U, 0x984cb52dU,
125 	0xc9ea468fU, 0xb7d5c473U, 0x33975566U, 0xbfd1dc63U,
126 	0x6633aaccU, 0xa251fb59U, 0xb65bc771U, 0x51a6f3a2U,
127 	0xa1defe5fU, 0x9048ad3dU, 0x4da8d79aU, 0x2f99715eU,
128 	0xabdbe04bU, 0x6432acc8U, 0x73b795e6U, 0xe5fc32d7U,
129 	0xdbe370abU, 0x219e6342U, 0x3f91417eU, 0x2b9b7d56U,
130 	0xd9e276afU, 0x6bbbbdd6U, 0x82419b19U, 0xdc6e79a5U,
131 	0x57a5f9aeU, 0x8bcb800bU, 0xd66b67b1U, 0x3795596eU,
132 	0x5fa1e1beU, 0xfbf310ebU, 0x7fb181feU, 0x04020c08U,
133 	0x85cc9217U, 0x95c4a237U, 0x3a1d4e74U, 0x28147850U,
134 	0x9bc3b02bU, 0xc6635791U, 0xa9dae64fU, 0xba5dd369U,
135 	0xbe5fdf61U, 0xa5dcf257U, 0xfa7d13e9U, 0x87cd9413U,
136 	0xfe7f1fe1U, 0xb45ac175U, 0xd86c75adU, 0xb85cd56dU,
137 	0xf3f708fbU, 0x4c26d498U, 0xe3ff38dbU, 0xc7ed5493U,
138 	0xcde84a87U, 0x279d694eU, 0xde6f7fa1U, 0x018e0302U,
139 	0x32195664U, 0x5da0e7baU, 0xfdf01ae7U, 0x0f89111eU,
140 	0x1e0f223cU, 0x0e07121cU, 0x43afc586U, 0xebfb20cbU,
141 	0x10083020U, 0x2a157e54U, 0x1a0d2e34U, 0x08041810U,
142 	0x02010604U, 0xc864458dU, 0xa3dff85bU, 0xec7629c5U,
143 	0xf2790bf9U, 0xa7ddf453U, 0x7a3d8ef4U, 0x2c167458U,
144 	0x7e3f82fcU, 0x6e37b2dcU, 0xda6d73a9U, 0x703890e0U,
145 	0x6fb9b1deU, 0xe67337d1U, 0xcfe94c83U, 0x6a35bed4U,
146 	0xaa55e349U, 0xe2713bd9U, 0xf67b07f1U, 0x058c0f0aU,
147 	0xe47231d5U, 0x0d88171aU, 0xf1f60effU, 0x542afca8U,
148 	0x7c3e84f8U, 0xbc5ed965U, 0x4e27d29cU, 0x8c468905U,
149 	0x180c2830U, 0xca654389U, 0xd0686dbdU, 0xc2615b99U,
150 	0x06030a0cU, 0x9fc1bc23U, 0xae57ef41U, 0xb1d6ce7fU,
151 	0xafd9ec43U, 0xb058cd7dU, 0xadd8ea47U, 0xcc664985U,
152 	0xb3d7c87bU, 0x743a9ce8U, 0x8dc88a07U, 0x783c88f0U,
153 	0xe9fa26cfU, 0x31965362U, 0x53a7f5a6U, 0x2d98775aU,
154 	0xc5ec5297U, 0x6db8b7daU, 0x93c7a83bU, 0x41aec382U,
155 	0xd2696bb9U, 0x964ba731U, 0x4babdd96U, 0x4fa9d19eU,
156 	0xce674f81U, 0x140a3c28U, 0x8e478f01U, 0xf9f216efU,
157 	0x77b599eeU, 0x4422cc88U, 0xd7e564b3U, 0xc1ee5e9fU,
158 	0x61bea3c2U, 0x562bfaacU, 0x1f81213eU, 0x24126c48U,
159 	0x1b832d36U, 0x361b5a6cU, 0x1c0e2438U, 0x4623ca8cU,
160 	0xf7f504f3U, 0x8a458309U, 0x4221c684U, 0x81ce9e1fU,
161 	0x9249ab39U, 0x582ce8b0U, 0xeff92cc3U, 0xd1e66ebfU,
162 	0x71b693e2U, 0x5028f0a0U, 0x2e17725cU, 0x19822b32U,
163 	0x341a5c68U, 0x0b8b1d16U, 0xe1fe3edfU, 0x098a1b12U,
164 	0x12093624U, 0x8fc98c03U, 0x13873526U, 0x9c4eb925U,
165 	0xdfe17ca3U, 0x5c2ee4b8U, 0xd5e462b7U, 0xdde07aa7U,
166 	0xcbeb408bU, 0x3d90477aU, 0x55a4ffaaU, 0x3c1e4478U,
167 	0x1785392eU, 0xc0605d9dU, 0x00000000U, 0x4a25de94U,
168 	0xf5f402f7U, 0xfff11ce3U, 0x35945f6aU, 0x160b3a2cU,
169 	0xd3e768bbU, 0xea7523c9U, 0xc3ef589bU, 0x6834b8d0U,
170 	0x6231a6c4U, 0xb5d4c277U, 0xbdd0da67U, 0x11863322U,
171 	0xfc7e19e5U, 0x47adc98eU, 0xe7fd34d3U, 0x5229f6a4U,
172 	0x6030a0c0U, 0x763b9aecU, 0x239f6546U, 0xedf82ac7U,
173 	0x91c6ae3fU, 0x26136a4cU, 0x0c061418U, 0x0a051e14U,
174 	0x97c5a433U, 0x22116644U, 0xee772fc1U, 0xf87c15edU,
175 	0xf47a01f5U, 0xf0780dfdU, 0x6c36b4d8U, 0x381c4870U,
176 	0x723996e4U, 0xb259cb79U, 0x30185060U, 0xac56e945U,
177 	0x7bb38df6U, 0x7db087faU, 0x4824d890U, 0x4020c080U,
178 	0x79b28bf2U, 0x39924b72U, 0x5ba3edb6U, 0x9dc0ba27U,
179 	0x8844850dU, 0xc4625195U, 0x20106040U, 0x75b49feaU,
180 	0x15843f2aU, 0x86439711U, 0x3b934d76U, 0x99c2b62fU,
181 	0x944aa135U, 0x67bda9ceU, 0x038f0506U, 0x5a2deeb4U,
182 	0x65bcafcaU, 0x259c6f4aU, 0xd46a61b5U, 0x80409d1dU,
183 	0x83cf981bU, 0x59a2ebb2U, 0x1d80273aU, 0x9e4fbf21U,
184 	0x3e1f427cU, 0x89ca860fU, 0x49aadb92U, 0x84429115U,
185 };
186 
187 static const u32 T2[256] = {
188 	0xd2bbba69U, 0x4de554a8U, 0xbce22f5eU, 0xcd2574e8U,
189 	0x51f753a6U, 0x6bd0d3bbU, 0x6fd6d2b9U, 0x29b34d9aU,
190 	0x5dfd50a0U, 0x8acfac45U, 0x0e098d07U, 0xc6a5bf63U,
191 	0xdd3d70e0U, 0x55f152a4U, 0x527b9a29U, 0x2db54c98U,
192 	0x8f46eac9U, 0x73c4d5b7U, 0x66559733U, 0x63dcd1bfU,
193 	0xccaa3366U, 0x59fb51a2U, 0x71c75bb6U, 0xa2f3a651U,
194 	0x5ffedea1U, 0x3dad4890U, 0x9ad7a84dU, 0x5e71992fU,
195 	0x4be0dbabU, 0xc8ac3264U, 0xe695b773U, 0xd732fce5U,
196 	0xab70e3dbU, 0x42639e21U, 0x7e41913fU, 0x567d9b2bU,
197 	0xaf76e2d9U, 0xd6bdbb6bU, 0x199b4182U, 0xa5796edcU,
198 	0xaef9a557U, 0x0b80cb8bU, 0xb1676bd6U, 0x6e599537U,
199 	0xbee1a15fU, 0xeb10f3fbU, 0xfe81b17fU, 0x080c0204U,
200 	0x1792cc85U, 0x37a2c495U, 0x744e1d3aU, 0x50781428U,
201 	0x2bb0c39bU, 0x915763c6U, 0x4fe6daa9U, 0x69d35dbaU,
202 	0x61df5fbeU, 0x57f2dca5U, 0xe9137dfaU, 0x1394cd87U,
203 	0xe11f7ffeU, 0x75c15ab4U, 0xad756cd8U, 0x6dd55cb8U,
204 	0xfb08f7f3U, 0x98d4264cU, 0xdb38ffe3U, 0x9354edc7U,
205 	0x874ae8cdU, 0x4e699d27U, 0xa17f6fdeU, 0x02038e01U,
206 	0x64561932U, 0xbae7a05dU, 0xe71af0fdU, 0x1e11890fU,
207 	0x3c220f1eU, 0x1c12070eU, 0x86c5af43U, 0xcb20fbebU,
208 	0x20300810U, 0x547e152aU, 0x342e0d1aU, 0x10180408U,
209 	0x04060102U, 0x8d4564c8U, 0x5bf8dfa3U, 0xc52976ecU,
210 	0xf90b79f2U, 0x53f4dda7U, 0xf48e3d7aU, 0x5874162cU,
211 	0xfc823f7eU, 0xdcb2376eU, 0xa9736ddaU, 0xe0903870U,
212 	0xdeb1b96fU, 0xd13773e6U, 0x834ce9cfU, 0xd4be356aU,
213 	0x49e355aaU, 0xd93b71e2U, 0xf1077bf6U, 0x0a0f8c05U,
214 	0xd53172e4U, 0x1a17880dU, 0xff0ef6f1U, 0xa8fc2a54U,
215 	0xf8843e7cU, 0x65d95ebcU, 0x9cd2274eU, 0x0589468cU,
216 	0x30280c18U, 0x894365caU, 0xbd6d68d0U, 0x995b61c2U,
217 	0x0c0a0306U, 0x23bcc19fU, 0x41ef57aeU, 0x7fced6b1U,
218 	0x43ecd9afU, 0x7dcd58b0U, 0x47ead8adU, 0x854966ccU,
219 	0x7bc8d7b3U, 0xe89c3a74U, 0x078ac88dU, 0xf0883c78U,
220 	0xcf26fae9U, 0x62539631U, 0xa6f5a753U, 0x5a77982dU,
221 	0x9752ecc5U, 0xdab7b86dU, 0x3ba8c793U, 0x82c3ae41U,
222 	0xb96b69d2U, 0x31a74b96U, 0x96ddab4bU, 0x9ed1a94fU,
223 	0x814f67ceU, 0x283c0a14U, 0x018f478eU, 0xef16f2f9U,
224 	0xee99b577U, 0x88cc2244U, 0xb364e5d7U, 0x9f5eeec1U,
225 	0xc2a3be61U, 0xacfa2b56U, 0x3e21811fU, 0x486c1224U,
226 	0x362d831bU, 0x6c5a1b36U, 0x38240e1cU, 0x8cca2346U,
227 	0xf304f5f7U, 0x0983458aU, 0x84c62142U, 0x1f9ece81U,
228 	0x39ab4992U, 0xb0e82c58U, 0xc32cf9efU, 0xbf6ee6d1U,
229 	0xe293b671U, 0xa0f02850U, 0x5c72172eU, 0x322b8219U,
230 	0x685c1a34U, 0x161d8b0bU, 0xdf3efee1U, 0x121b8a09U,
231 	0x24360912U, 0x038cc98fU, 0x26358713U, 0x25b94e9cU,
232 	0xa37ce1dfU, 0xb8e42e5cU, 0xb762e4d5U, 0xa77ae0ddU,
233 	0x8b40ebcbU, 0x7a47903dU, 0xaaffa455U, 0x78441e3cU,
234 	0x2e398517U, 0x9d5d60c0U, 0x00000000U, 0x94de254aU,
235 	0xf702f4f5U, 0xe31cf1ffU, 0x6a5f9435U, 0x2c3a0b16U,
236 	0xbb68e7d3U, 0xc92375eaU, 0x9b58efc3U, 0xd0b83468U,
237 	0xc4a63162U, 0x77c2d4b5U, 0x67dad0bdU, 0x22338611U,
238 	0xe5197efcU, 0x8ec9ad47U, 0xd334fde7U, 0xa4f62952U,
239 	0xc0a03060U, 0xec9a3b76U, 0x46659f23U, 0xc72af8edU,
240 	0x3faec691U, 0x4c6a1326U, 0x1814060cU, 0x141e050aU,
241 	0x33a4c597U, 0x44661122U, 0xc12f77eeU, 0xed157cf8U,
242 	0xf5017af4U, 0xfd0d78f0U, 0xd8b4366cU, 0x70481c38U,
243 	0xe4963972U, 0x79cb59b2U, 0x60501830U, 0x45e956acU,
244 	0xf68db37bU, 0xfa87b07dU, 0x90d82448U, 0x80c02040U,
245 	0xf28bb279U, 0x724b9239U, 0xb6eda35bU, 0x27bac09dU,
246 	0x0d854488U, 0x955162c4U, 0x40601020U, 0xea9fb475U,
247 	0x2a3f8415U, 0x11974386U, 0x764d933bU, 0x2fb6c299U,
248 	0x35a14a94U, 0xcea9bd67U, 0x06058f03U, 0xb4ee2d5aU,
249 	0xcaafbc65U, 0x4a6f9c25U, 0xb5616ad4U, 0x1d9d4080U,
250 	0x1b98cf83U, 0xb2eba259U, 0x3a27801dU, 0x21bf4f9eU,
251 	0x7c421f3eU, 0x0f86ca89U, 0x92dbaa49U, 0x15914284U,
252 };
253 
254 static const u32 T3[256] = {
255 	0xbbd269baU, 0xe54da854U, 0xe2bc5e2fU, 0x25cde874U,
256 	0xf751a653U, 0xd06bbbd3U, 0xd66fb9d2U, 0xb3299a4dU,
257 	0xfd5da050U, 0xcf8a45acU, 0x090e078dU, 0xa5c663bfU,
258 	0x3ddde070U, 0xf155a452U, 0x7b52299aU, 0xb52d984cU,
259 	0x468fc9eaU, 0xc473b7d5U, 0x55663397U, 0xdc63bfd1U,
260 	0xaacc6633U, 0xfb59a251U, 0xc771b65bU, 0xf3a251a6U,
261 	0xfe5fa1deU, 0xad3d9048U, 0xd79a4da8U, 0x715e2f99U,
262 	0xe04babdbU, 0xacc86432U, 0x95e673b7U, 0x32d7e5fcU,
263 	0x70abdbe3U, 0x6342219eU, 0x417e3f91U, 0x7d562b9bU,
264 	0x76afd9e2U, 0xbdd66bbbU, 0x9b198241U, 0x79a5dc6eU,
265 	0xf9ae57a5U, 0x800b8bcbU, 0x67b1d66bU, 0x596e3795U,
266 	0xe1be5fa1U, 0x10ebfbf3U, 0x81fe7fb1U, 0x0c080402U,
267 	0x921785ccU, 0xa23795c4U, 0x4e743a1dU, 0x78502814U,
268 	0xb02b9bc3U, 0x5791c663U, 0xe64fa9daU, 0xd369ba5dU,
269 	0xdf61be5fU, 0xf257a5dcU, 0x13e9fa7dU, 0x941387cdU,
270 	0x1fe1fe7fU, 0xc175b45aU, 0x75add86cU, 0xd56db85cU,
271 	0x08fbf3f7U, 0xd4984c26U, 0x38dbe3ffU, 0x5493c7edU,
272 	0x4a87cde8U, 0x694e279dU, 0x7fa1de6fU, 0x0302018eU,
273 	0x56643219U, 0xe7ba5da0U, 0x1ae7fdf0U, 0x111e0f89U,
274 	0x223c1e0fU, 0x121c0e07U, 0xc58643afU, 0x20cbebfbU,
275 	0x30201008U, 0x7e542a15U, 0x2e341a0dU, 0x18100804U,
276 	0x06040201U, 0x458dc864U, 0xf85ba3dfU, 0x29c5ec76U,
277 	0x0bf9f279U, 0xf453a7ddU, 0x8ef47a3dU, 0x74582c16U,
278 	0x82fc7e3fU, 0xb2dc6e37U, 0x73a9da6dU, 0x90e07038U,
279 	0xb1de6fb9U, 0x37d1e673U, 0x4c83cfe9U, 0xbed46a35U,
280 	0xe349aa55U, 0x3bd9e271U, 0x07f1f67bU, 0x0f0a058cU,
281 	0x31d5e472U, 0x171a0d88U, 0x0efff1f6U, 0xfca8542aU,
282 	0x84f87c3eU, 0xd965bc5eU, 0xd29c4e27U, 0x89058c46U,
283 	0x2830180cU, 0x4389ca65U, 0x6dbdd068U, 0x5b99c261U,
284 	0x0a0c0603U, 0xbc239fc1U, 0xef41ae57U, 0xce7fb1d6U,
285 	0xec43afd9U, 0xcd7db058U, 0xea47add8U, 0x4985cc66U,
286 	0xc87bb3d7U, 0x9ce8743aU, 0x8a078dc8U, 0x88f0783cU,
287 	0x26cfe9faU, 0x53623196U, 0xf5a653a7U, 0x775a2d98U,
288 	0x5297c5ecU, 0xb7da6db8U, 0xa83b93c7U, 0xc38241aeU,
289 	0x6bb9d269U, 0xa731964bU, 0xdd964babU, 0xd19e4fa9U,
290 	0x4f81ce67U, 0x3c28140aU, 0x8f018e47U, 0x16eff9f2U,
291 	0x99ee77b5U, 0xcc884422U, 0x64b3d7e5U, 0x5e9fc1eeU,
292 	0xa3c261beU, 0xfaac562bU, 0x213e1f81U, 0x6c482412U,
293 	0x2d361b83U, 0x5a6c361bU, 0x24381c0eU, 0xca8c4623U,
294 	0x04f3f7f5U, 0x83098a45U, 0xc6844221U, 0x9e1f81ceU,
295 	0xab399249U, 0xe8b0582cU, 0x2cc3eff9U, 0x6ebfd1e6U,
296 	0x93e271b6U, 0xf0a05028U, 0x725c2e17U, 0x2b321982U,
297 	0x5c68341aU, 0x1d160b8bU, 0x3edfe1feU, 0x1b12098aU,
298 	0x36241209U, 0x8c038fc9U, 0x35261387U, 0xb9259c4eU,
299 	0x7ca3dfe1U, 0xe4b85c2eU, 0x62b7d5e4U, 0x7aa7dde0U,
300 	0x408bcbebU, 0x477a3d90U, 0xffaa55a4U, 0x44783c1eU,
301 	0x392e1785U, 0x5d9dc060U, 0x00000000U, 0xde944a25U,
302 	0x02f7f5f4U, 0x1ce3fff1U, 0x5f6a3594U, 0x3a2c160bU,
303 	0x68bbd3e7U, 0x23c9ea75U, 0x589bc3efU, 0xb8d06834U,
304 	0xa6c46231U, 0xc277b5d4U, 0xda67bdd0U, 0x33221186U,
305 	0x19e5fc7eU, 0xc98e47adU, 0x34d3e7fdU, 0xf6a45229U,
306 	0xa0c06030U, 0x9aec763bU, 0x6546239fU, 0x2ac7edf8U,
307 	0xae3f91c6U, 0x6a4c2613U, 0x14180c06U, 0x1e140a05U,
308 	0xa43397c5U, 0x66442211U, 0x2fc1ee77U, 0x15edf87cU,
309 	0x01f5f47aU, 0x0dfdf078U, 0xb4d86c36U, 0x4870381cU,
310 	0x96e47239U, 0xcb79b259U, 0x50603018U, 0xe945ac56U,
311 	0x8df67bb3U, 0x87fa7db0U, 0xd8904824U, 0xc0804020U,
312 	0x8bf279b2U, 0x4b723992U, 0xedb65ba3U, 0xba279dc0U,
313 	0x850d8844U, 0x5195c462U, 0x60402010U, 0x9fea75b4U,
314 	0x3f2a1584U, 0x97118643U, 0x4d763b93U, 0xb62f99c2U,
315 	0xa135944aU, 0xa9ce67bdU, 0x0506038fU, 0xeeb45a2dU,
316 	0xafca65bcU, 0x6f4a259cU, 0x61b5d46aU, 0x9d1d8040U,
317 	0x981b83cfU, 0xebb259a2U, 0x273a1d80U, 0xbf219e4fU,
318 	0x427c3e1fU, 0x860f89caU, 0xdb9249aaU, 0x91158442U,
319 };
320 
321 static const u32 T4[256] = {
322 	0xbabababaU, 0x54545454U, 0x2f2f2f2fU, 0x74747474U,
323 	0x53535353U, 0xd3d3d3d3U, 0xd2d2d2d2U, 0x4d4d4d4dU,
324 	0x50505050U, 0xacacacacU, 0x8d8d8d8dU, 0xbfbfbfbfU,
325 	0x70707070U, 0x52525252U, 0x9a9a9a9aU, 0x4c4c4c4cU,
326 	0xeaeaeaeaU, 0xd5d5d5d5U, 0x97979797U, 0xd1d1d1d1U,
327 	0x33333333U, 0x51515151U, 0x5b5b5b5bU, 0xa6a6a6a6U,
328 	0xdedededeU, 0x48484848U, 0xa8a8a8a8U, 0x99999999U,
329 	0xdbdbdbdbU, 0x32323232U, 0xb7b7b7b7U, 0xfcfcfcfcU,
330 	0xe3e3e3e3U, 0x9e9e9e9eU, 0x91919191U, 0x9b9b9b9bU,
331 	0xe2e2e2e2U, 0xbbbbbbbbU, 0x41414141U, 0x6e6e6e6eU,
332 	0xa5a5a5a5U, 0xcbcbcbcbU, 0x6b6b6b6bU, 0x95959595U,
333 	0xa1a1a1a1U, 0xf3f3f3f3U, 0xb1b1b1b1U, 0x02020202U,
334 	0xccccccccU, 0xc4c4c4c4U, 0x1d1d1d1dU, 0x14141414U,
335 	0xc3c3c3c3U, 0x63636363U, 0xdadadadaU, 0x5d5d5d5dU,
336 	0x5f5f5f5fU, 0xdcdcdcdcU, 0x7d7d7d7dU, 0xcdcdcdcdU,
337 	0x7f7f7f7fU, 0x5a5a5a5aU, 0x6c6c6c6cU, 0x5c5c5c5cU,
338 	0xf7f7f7f7U, 0x26262626U, 0xffffffffU, 0xededededU,
339 	0xe8e8e8e8U, 0x9d9d9d9dU, 0x6f6f6f6fU, 0x8e8e8e8eU,
340 	0x19191919U, 0xa0a0a0a0U, 0xf0f0f0f0U, 0x89898989U,
341 	0x0f0f0f0fU, 0x07070707U, 0xafafafafU, 0xfbfbfbfbU,
342 	0x08080808U, 0x15151515U, 0x0d0d0d0dU, 0x04040404U,
343 	0x01010101U, 0x64646464U, 0xdfdfdfdfU, 0x76767676U,
344 	0x79797979U, 0xddddddddU, 0x3d3d3d3dU, 0x16161616U,
345 	0x3f3f3f3fU, 0x37373737U, 0x6d6d6d6dU, 0x38383838U,
346 	0xb9b9b9b9U, 0x73737373U, 0xe9e9e9e9U, 0x35353535U,
347 	0x55555555U, 0x71717171U, 0x7b7b7b7bU, 0x8c8c8c8cU,
348 	0x72727272U, 0x88888888U, 0xf6f6f6f6U, 0x2a2a2a2aU,
349 	0x3e3e3e3eU, 0x5e5e5e5eU, 0x27272727U, 0x46464646U,
350 	0x0c0c0c0cU, 0x65656565U, 0x68686868U, 0x61616161U,
351 	0x03030303U, 0xc1c1c1c1U, 0x57575757U, 0xd6d6d6d6U,
352 	0xd9d9d9d9U, 0x58585858U, 0xd8d8d8d8U, 0x66666666U,
353 	0xd7d7d7d7U, 0x3a3a3a3aU, 0xc8c8c8c8U, 0x3c3c3c3cU,
354 	0xfafafafaU, 0x96969696U, 0xa7a7a7a7U, 0x98989898U,
355 	0xececececU, 0xb8b8b8b8U, 0xc7c7c7c7U, 0xaeaeaeaeU,
356 	0x69696969U, 0x4b4b4b4bU, 0xababababU, 0xa9a9a9a9U,
357 	0x67676767U, 0x0a0a0a0aU, 0x47474747U, 0xf2f2f2f2U,
358 	0xb5b5b5b5U, 0x22222222U, 0xe5e5e5e5U, 0xeeeeeeeeU,
359 	0xbebebebeU, 0x2b2b2b2bU, 0x81818181U, 0x12121212U,
360 	0x83838383U, 0x1b1b1b1bU, 0x0e0e0e0eU, 0x23232323U,
361 	0xf5f5f5f5U, 0x45454545U, 0x21212121U, 0xcecececeU,
362 	0x49494949U, 0x2c2c2c2cU, 0xf9f9f9f9U, 0xe6e6e6e6U,
363 	0xb6b6b6b6U, 0x28282828U, 0x17171717U, 0x82828282U,
364 	0x1a1a1a1aU, 0x8b8b8b8bU, 0xfefefefeU, 0x8a8a8a8aU,
365 	0x09090909U, 0xc9c9c9c9U, 0x87878787U, 0x4e4e4e4eU,
366 	0xe1e1e1e1U, 0x2e2e2e2eU, 0xe4e4e4e4U, 0xe0e0e0e0U,
367 	0xebebebebU, 0x90909090U, 0xa4a4a4a4U, 0x1e1e1e1eU,
368 	0x85858585U, 0x60606060U, 0x00000000U, 0x25252525U,
369 	0xf4f4f4f4U, 0xf1f1f1f1U, 0x94949494U, 0x0b0b0b0bU,
370 	0xe7e7e7e7U, 0x75757575U, 0xefefefefU, 0x34343434U,
371 	0x31313131U, 0xd4d4d4d4U, 0xd0d0d0d0U, 0x86868686U,
372 	0x7e7e7e7eU, 0xadadadadU, 0xfdfdfdfdU, 0x29292929U,
373 	0x30303030U, 0x3b3b3b3bU, 0x9f9f9f9fU, 0xf8f8f8f8U,
374 	0xc6c6c6c6U, 0x13131313U, 0x06060606U, 0x05050505U,
375 	0xc5c5c5c5U, 0x11111111U, 0x77777777U, 0x7c7c7c7cU,
376 	0x7a7a7a7aU, 0x78787878U, 0x36363636U, 0x1c1c1c1cU,
377 	0x39393939U, 0x59595959U, 0x18181818U, 0x56565656U,
378 	0xb3b3b3b3U, 0xb0b0b0b0U, 0x24242424U, 0x20202020U,
379 	0xb2b2b2b2U, 0x92929292U, 0xa3a3a3a3U, 0xc0c0c0c0U,
380 	0x44444444U, 0x62626262U, 0x10101010U, 0xb4b4b4b4U,
381 	0x84848484U, 0x43434343U, 0x93939393U, 0xc2c2c2c2U,
382 	0x4a4a4a4aU, 0xbdbdbdbdU, 0x8f8f8f8fU, 0x2d2d2d2dU,
383 	0xbcbcbcbcU, 0x9c9c9c9cU, 0x6a6a6a6aU, 0x40404040U,
384 	0xcfcfcfcfU, 0xa2a2a2a2U, 0x80808080U, 0x4f4f4f4fU,
385 	0x1f1f1f1fU, 0xcacacacaU, 0xaaaaaaaaU, 0x42424242U,
386 };
387 
388 static const u32 T5[256] = {
389 	0x00000000U, 0x01020608U, 0x02040c10U, 0x03060a18U,
390 	0x04081820U, 0x050a1e28U, 0x060c1430U, 0x070e1238U,
391 	0x08103040U, 0x09123648U, 0x0a143c50U, 0x0b163a58U,
392 	0x0c182860U, 0x0d1a2e68U, 0x0e1c2470U, 0x0f1e2278U,
393 	0x10206080U, 0x11226688U, 0x12246c90U, 0x13266a98U,
394 	0x142878a0U, 0x152a7ea8U, 0x162c74b0U, 0x172e72b8U,
395 	0x183050c0U, 0x193256c8U, 0x1a345cd0U, 0x1b365ad8U,
396 	0x1c3848e0U, 0x1d3a4ee8U, 0x1e3c44f0U, 0x1f3e42f8U,
397 	0x2040c01dU, 0x2142c615U, 0x2244cc0dU, 0x2346ca05U,
398 	0x2448d83dU, 0x254ade35U, 0x264cd42dU, 0x274ed225U,
399 	0x2850f05dU, 0x2952f655U, 0x2a54fc4dU, 0x2b56fa45U,
400 	0x2c58e87dU, 0x2d5aee75U, 0x2e5ce46dU, 0x2f5ee265U,
401 	0x3060a09dU, 0x3162a695U, 0x3264ac8dU, 0x3366aa85U,
402 	0x3468b8bdU, 0x356abeb5U, 0x366cb4adU, 0x376eb2a5U,
403 	0x387090ddU, 0x397296d5U, 0x3a749ccdU, 0x3b769ac5U,
404 	0x3c7888fdU, 0x3d7a8ef5U, 0x3e7c84edU, 0x3f7e82e5U,
405 	0x40809d3aU, 0x41829b32U, 0x4284912aU, 0x43869722U,
406 	0x4488851aU, 0x458a8312U, 0x468c890aU, 0x478e8f02U,
407 	0x4890ad7aU, 0x4992ab72U, 0x4a94a16aU, 0x4b96a762U,
408 	0x4c98b55aU, 0x4d9ab352U, 0x4e9cb94aU, 0x4f9ebf42U,
409 	0x50a0fdbaU, 0x51a2fbb2U, 0x52a4f1aaU, 0x53a6f7a2U,
410 	0x54a8e59aU, 0x55aae392U, 0x56ace98aU, 0x57aeef82U,
411 	0x58b0cdfaU, 0x59b2cbf2U, 0x5ab4c1eaU, 0x5bb6c7e2U,
412 	0x5cb8d5daU, 0x5dbad3d2U, 0x5ebcd9caU, 0x5fbedfc2U,
413 	0x60c05d27U, 0x61c25b2fU, 0x62c45137U, 0x63c6573fU,
414 	0x64c84507U, 0x65ca430fU, 0x66cc4917U, 0x67ce4f1fU,
415 	0x68d06d67U, 0x69d26b6fU, 0x6ad46177U, 0x6bd6677fU,
416 	0x6cd87547U, 0x6dda734fU, 0x6edc7957U, 0x6fde7f5fU,
417 	0x70e03da7U, 0x71e23bafU, 0x72e431b7U, 0x73e637bfU,
418 	0x74e82587U, 0x75ea238fU, 0x76ec2997U, 0x77ee2f9fU,
419 	0x78f00de7U, 0x79f20befU, 0x7af401f7U, 0x7bf607ffU,
420 	0x7cf815c7U, 0x7dfa13cfU, 0x7efc19d7U, 0x7ffe1fdfU,
421 	0x801d2774U, 0x811f217cU, 0x82192b64U, 0x831b2d6cU,
422 	0x84153f54U, 0x8517395cU, 0x86113344U, 0x8713354cU,
423 	0x880d1734U, 0x890f113cU, 0x8a091b24U, 0x8b0b1d2cU,
424 	0x8c050f14U, 0x8d07091cU, 0x8e010304U, 0x8f03050cU,
425 	0x903d47f4U, 0x913f41fcU, 0x92394be4U, 0x933b4decU,
426 	0x94355fd4U, 0x953759dcU, 0x963153c4U, 0x973355ccU,
427 	0x982d77b4U, 0x992f71bcU, 0x9a297ba4U, 0x9b2b7dacU,
428 	0x9c256f94U, 0x9d27699cU, 0x9e216384U, 0x9f23658cU,
429 	0xa05de769U, 0xa15fe161U, 0xa259eb79U, 0xa35bed71U,
430 	0xa455ff49U, 0xa557f941U, 0xa651f359U, 0xa753f551U,
431 	0xa84dd729U, 0xa94fd121U, 0xaa49db39U, 0xab4bdd31U,
432 	0xac45cf09U, 0xad47c901U, 0xae41c319U, 0xaf43c511U,
433 	0xb07d87e9U, 0xb17f81e1U, 0xb2798bf9U, 0xb37b8df1U,
434 	0xb4759fc9U, 0xb57799c1U, 0xb67193d9U, 0xb77395d1U,
435 	0xb86db7a9U, 0xb96fb1a1U, 0xba69bbb9U, 0xbb6bbdb1U,
436 	0xbc65af89U, 0xbd67a981U, 0xbe61a399U, 0xbf63a591U,
437 	0xc09dba4eU, 0xc19fbc46U, 0xc299b65eU, 0xc39bb056U,
438 	0xc495a26eU, 0xc597a466U, 0xc691ae7eU, 0xc793a876U,
439 	0xc88d8a0eU, 0xc98f8c06U, 0xca89861eU, 0xcb8b8016U,
440 	0xcc85922eU, 0xcd879426U, 0xce819e3eU, 0xcf839836U,
441 	0xd0bddaceU, 0xd1bfdcc6U, 0xd2b9d6deU, 0xd3bbd0d6U,
442 	0xd4b5c2eeU, 0xd5b7c4e6U, 0xd6b1cefeU, 0xd7b3c8f6U,
443 	0xd8adea8eU, 0xd9afec86U, 0xdaa9e69eU, 0xdbabe096U,
444 	0xdca5f2aeU, 0xdda7f4a6U, 0xdea1febeU, 0xdfa3f8b6U,
445 	0xe0dd7a53U, 0xe1df7c5bU, 0xe2d97643U, 0xe3db704bU,
446 	0xe4d56273U, 0xe5d7647bU, 0xe6d16e63U, 0xe7d3686bU,
447 	0xe8cd4a13U, 0xe9cf4c1bU, 0xeac94603U, 0xebcb400bU,
448 	0xecc55233U, 0xedc7543bU, 0xeec15e23U, 0xefc3582bU,
449 	0xf0fd1ad3U, 0xf1ff1cdbU, 0xf2f916c3U, 0xf3fb10cbU,
450 	0xf4f502f3U, 0xf5f704fbU, 0xf6f10ee3U, 0xf7f308ebU,
451 	0xf8ed2a93U, 0xf9ef2c9bU, 0xfae92683U, 0xfbeb208bU,
452 	0xfce532b3U, 0xfde734bbU, 0xfee13ea3U, 0xffe338abU,
453 };
454 
455 static const u32 rc[] = {
456 	0xba542f74U, 0x53d3d24dU, 0x50ac8dbfU, 0x70529a4cU,
457 	0xead597d1U, 0x33515ba6U, 0xde48a899U, 0xdb32b7fcU,
458 	0xe39e919bU, 0xe2bb416eU, 0xa5cb6b95U, 0xa1f3b102U,
459 	0xccc41d14U, 0xc363da5dU, 0x5fdc7dcdU, 0x7f5a6c5cU,
460 	0xf726ffedU, 0xe89d6f8eU, 0x19a0f089U,
461 };
462 
463 static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key,
464 			 unsigned int key_len)
465 {
466 	struct anubis_ctx *ctx = crypto_tfm_ctx(tfm);
467 	const __be32 *key = (const __be32 *)in_key;
468 	u32 *flags = &tfm->crt_flags;
469 	int N, R, i, r;
470 	u32 kappa[ANUBIS_MAX_N];
471 	u32 inter[ANUBIS_MAX_N];
472 
473 	switch (key_len)
474 	{
475 		case 16: case 20: case 24: case 28:
476 		case 32: case 36: case 40:
477 			break;
478 		default:
479 			*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
480 			return - EINVAL;
481 	}
482 
483 	ctx->key_len = key_len * 8;
484 	N = ctx->key_len >> 5;
485 	ctx->R = R = 8 + N;
486 
487 	/* * map cipher key to initial key state (mu): */
488 	for (i = 0; i < N; i++)
489 		kappa[i] = be32_to_cpu(key[i]);
490 
491 	/*
492 	 * generate R + 1 round keys:
493 	 */
494 	for (r = 0; r <= R; r++) {
495 		u32 K0, K1, K2, K3;
496 		/*
497 		 * generate r-th round key K^r:
498 		 */
499 		K0 = T4[(kappa[N - 1] >> 24)       ];
500 		K1 = T4[(kappa[N - 1] >> 16) & 0xff];
501 		K2 = T4[(kappa[N - 1] >>  8) & 0xff];
502 		K3 = T4[(kappa[N - 1]      ) & 0xff];
503 		for (i = N - 2; i >= 0; i--) {
504 			K0 = T4[(kappa[i] >> 24)       ] ^
505 				(T5[(K0 >> 24)       ] & 0xff000000U) ^
506 				(T5[(K0 >> 16) & 0xff] & 0x00ff0000U) ^
507 				(T5[(K0 >>  8) & 0xff] & 0x0000ff00U) ^
508 				(T5[(K0      ) & 0xff] & 0x000000ffU);
509 			K1 = T4[(kappa[i] >> 16) & 0xff] ^
510 				(T5[(K1 >> 24)       ] & 0xff000000U) ^
511 				(T5[(K1 >> 16) & 0xff] & 0x00ff0000U) ^
512 				(T5[(K1 >>  8) & 0xff] & 0x0000ff00U) ^
513 				(T5[(K1      ) & 0xff] & 0x000000ffU);
514 			K2 = T4[(kappa[i] >>  8) & 0xff] ^
515 				(T5[(K2 >> 24)       ] & 0xff000000U) ^
516 				(T5[(K2 >> 16) & 0xff] & 0x00ff0000U) ^
517 				(T5[(K2 >>  8) & 0xff] & 0x0000ff00U) ^
518 				(T5[(K2      ) & 0xff] & 0x000000ffU);
519 			K3 = T4[(kappa[i]      ) & 0xff] ^
520 				(T5[(K3 >> 24)       ] & 0xff000000U) ^
521 				(T5[(K3 >> 16) & 0xff] & 0x00ff0000U) ^
522 				(T5[(K3 >>  8) & 0xff] & 0x0000ff00U) ^
523 				(T5[(K3      ) & 0xff] & 0x000000ffU);
524 		}
525 
526 		ctx->E[r][0] = K0;
527 		ctx->E[r][1] = K1;
528 		ctx->E[r][2] = K2;
529 		ctx->E[r][3] = K3;
530 
531 		/*
532 		 * compute kappa^{r+1} from kappa^r:
533 		 */
534 		if (r == R) {
535 			break;
536 		}
537 		for (i = 0; i < N; i++) {
538 			int j = i;
539 			inter[i]  = T0[(kappa[j--] >> 24)       ];
540 			if (j < 0) j = N - 1;
541 			inter[i] ^= T1[(kappa[j--] >> 16) & 0xff];
542 			if (j < 0) j = N - 1;
543 			inter[i] ^= T2[(kappa[j--] >>  8) & 0xff];
544 			if (j < 0) j = N - 1;
545 			inter[i] ^= T3[(kappa[j  ]      ) & 0xff];
546 		}
547 		kappa[0] = inter[0] ^ rc[r];
548 		for (i = 1; i < N; i++) {
549 			kappa[i] = inter[i];
550 		}
551 	}
552 
553 	/*
554 	 * generate inverse key schedule: K'^0 = K^R, K'^R =
555 	 * 				  K^0, K'^r = theta(K^{R-r}):
556 	 */
557 	for (i = 0; i < 4; i++) {
558 		ctx->D[0][i] = ctx->E[R][i];
559 		ctx->D[R][i] = ctx->E[0][i];
560 	}
561 	for (r = 1; r < R; r++) {
562 		for (i = 0; i < 4; i++) {
563 			u32 v = ctx->E[R - r][i];
564 			ctx->D[r][i] =
565 				T0[T4[(v >> 24)       ] & 0xff] ^
566 				T1[T4[(v >> 16) & 0xff] & 0xff] ^
567 				T2[T4[(v >>  8) & 0xff] & 0xff] ^
568 				T3[T4[(v      ) & 0xff] & 0xff];
569 		}
570 	}
571 
572 	return 0;
573 }
574 
575 static void anubis_crypt(u32 roundKey[ANUBIS_MAX_ROUNDS + 1][4],
576 		u8 *ciphertext, const u8 *plaintext, const int R)
577 {
578 	const __be32 *src = (const __be32 *)plaintext;
579 	__be32 *dst = (__be32 *)ciphertext;
580 	int i, r;
581 	u32 state[4];
582 	u32 inter[4];
583 
584 	/*
585 	 * map plaintext block to cipher state (mu)
586 	 * and add initial round key (sigma[K^0]):
587 	 */
588 	for (i = 0; i < 4; i++)
589 		state[i] = be32_to_cpu(src[i]) ^ roundKey[0][i];
590 
591 	/*
592 	 * R - 1 full rounds:
593 	 */
594 
595 	for (r = 1; r < R; r++) {
596 		inter[0] =
597 			T0[(state[0] >> 24)       ] ^
598 			T1[(state[1] >> 24)       ] ^
599 			T2[(state[2] >> 24)       ] ^
600 			T3[(state[3] >> 24)       ] ^
601 			roundKey[r][0];
602 		inter[1] =
603 			T0[(state[0] >> 16) & 0xff] ^
604 			T1[(state[1] >> 16) & 0xff] ^
605 			T2[(state[2] >> 16) & 0xff] ^
606 			T3[(state[3] >> 16) & 0xff] ^
607 			roundKey[r][1];
608 		inter[2] =
609 			T0[(state[0] >>  8) & 0xff] ^
610 			T1[(state[1] >>  8) & 0xff] ^
611 			T2[(state[2] >>  8) & 0xff] ^
612 			T3[(state[3] >>  8) & 0xff] ^
613 			roundKey[r][2];
614 		inter[3] =
615 			T0[(state[0]      ) & 0xff] ^
616 			T1[(state[1]      ) & 0xff] ^
617 			T2[(state[2]      ) & 0xff] ^
618 			T3[(state[3]      ) & 0xff] ^
619 			roundKey[r][3];
620 		state[0] = inter[0];
621 		state[1] = inter[1];
622 		state[2] = inter[2];
623 		state[3] = inter[3];
624 	}
625 
626 	/*
627 	 * last round:
628 	 */
629 
630 	inter[0] =
631 		(T0[(state[0] >> 24)       ] & 0xff000000U) ^
632 		(T1[(state[1] >> 24)       ] & 0x00ff0000U) ^
633 		(T2[(state[2] >> 24)       ] & 0x0000ff00U) ^
634 		(T3[(state[3] >> 24)       ] & 0x000000ffU) ^
635 		roundKey[R][0];
636 	inter[1] =
637 		(T0[(state[0] >> 16) & 0xff] & 0xff000000U) ^
638 		(T1[(state[1] >> 16) & 0xff] & 0x00ff0000U) ^
639 		(T2[(state[2] >> 16) & 0xff] & 0x0000ff00U) ^
640 		(T3[(state[3] >> 16) & 0xff] & 0x000000ffU) ^
641 		roundKey[R][1];
642 	inter[2] =
643 		(T0[(state[0] >>  8) & 0xff] & 0xff000000U) ^
644 		(T1[(state[1] >>  8) & 0xff] & 0x00ff0000U) ^
645 		(T2[(state[2] >>  8) & 0xff] & 0x0000ff00U) ^
646 		(T3[(state[3] >>  8) & 0xff] & 0x000000ffU) ^
647 		roundKey[R][2];
648 	inter[3] =
649 		(T0[(state[0]      ) & 0xff] & 0xff000000U) ^
650 		(T1[(state[1]      ) & 0xff] & 0x00ff0000U) ^
651 		(T2[(state[2]      ) & 0xff] & 0x0000ff00U) ^
652 		(T3[(state[3]      ) & 0xff] & 0x000000ffU) ^
653 		roundKey[R][3];
654 
655 	/*
656 	 * map cipher state to ciphertext block (mu^{-1}):
657 	 */
658 
659 	for (i = 0; i < 4; i++)
660 		dst[i] = cpu_to_be32(inter[i]);
661 }
662 
663 static void anubis_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
664 {
665 	struct anubis_ctx *ctx = crypto_tfm_ctx(tfm);
666 	anubis_crypt(ctx->E, dst, src, ctx->R);
667 }
668 
669 static void anubis_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
670 {
671 	struct anubis_ctx *ctx = crypto_tfm_ctx(tfm);
672 	anubis_crypt(ctx->D, dst, src, ctx->R);
673 }
674 
675 static struct crypto_alg anubis_alg = {
676 	.cra_name		=	"anubis",
677 	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
678 	.cra_blocksize		=	ANUBIS_BLOCK_SIZE,
679 	.cra_ctxsize		=	sizeof (struct anubis_ctx),
680 	.cra_alignmask		=	3,
681 	.cra_module		=	THIS_MODULE,
682 	.cra_list		=	LIST_HEAD_INIT(anubis_alg.cra_list),
683 	.cra_u			=	{ .cipher = {
684 	.cia_min_keysize	=	ANUBIS_MIN_KEY_SIZE,
685 	.cia_max_keysize	=	ANUBIS_MAX_KEY_SIZE,
686 	.cia_setkey		= 	anubis_setkey,
687 	.cia_encrypt		=	anubis_encrypt,
688 	.cia_decrypt		=	anubis_decrypt } }
689 };
690 
691 static int __init init(void)
692 {
693 	int ret = 0;
694 
695 	ret = crypto_register_alg(&anubis_alg);
696 	return ret;
697 }
698 
699 static void __exit fini(void)
700 {
701 	crypto_unregister_alg(&anubis_alg);
702 }
703 
704 module_init(init);
705 module_exit(fini);
706 
707 MODULE_LICENSE("GPL");
708 MODULE_DESCRIPTION("Anubis Cryptographic Algorithm");
709