xref: /openbmc/linux/crypto/anubis.c (revision ae213c44) 
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 <linux/crypto.h>
37 #include <linux/types.h>
38 
39 #define ANUBIS_MIN_KEY_SIZE	16
40 #define ANUBIS_MAX_KEY_SIZE	40
41 #define ANUBIS_BLOCK_SIZE	16
42 #define ANUBIS_MAX_N		10
43 #define ANUBIS_MAX_ROUNDS	(8 + ANUBIS_MAX_N)
44 
45 struct anubis_ctx {
46 	int key_len; // in bits
47 	int R;
48 	u32 E[ANUBIS_MAX_ROUNDS + 1][4];
49 	u32 D[ANUBIS_MAX_ROUNDS + 1][4];
50 };
51 
52 static const u32 T0[256] = {
53 	0xba69d2bbU, 0x54a84de5U, 0x2f5ebce2U, 0x74e8cd25U,
54 	0x53a651f7U, 0xd3bb6bd0U, 0xd2b96fd6U, 0x4d9a29b3U,
55 	0x50a05dfdU, 0xac458acfU, 0x8d070e09U, 0xbf63c6a5U,
56 	0x70e0dd3dU, 0x52a455f1U, 0x9a29527bU, 0x4c982db5U,
57 	0xeac98f46U, 0xd5b773c4U, 0x97336655U, 0xd1bf63dcU,
58 	0x3366ccaaU, 0x51a259fbU, 0x5bb671c7U, 0xa651a2f3U,
59 	0xdea15ffeU, 0x48903dadU, 0xa84d9ad7U, 0x992f5e71U,
60 	0xdbab4be0U, 0x3264c8acU, 0xb773e695U, 0xfce5d732U,
61 	0xe3dbab70U, 0x9e214263U, 0x913f7e41U, 0x9b2b567dU,
62 	0xe2d9af76U, 0xbb6bd6bdU, 0x4182199bU, 0x6edca579U,
63 	0xa557aef9U, 0xcb8b0b80U, 0x6bd6b167U, 0x95376e59U,
64 	0xa15fbee1U, 0xf3fbeb10U, 0xb17ffe81U, 0x0204080cU,
65 	0xcc851792U, 0xc49537a2U, 0x1d3a744eU, 0x14285078U,
66 	0xc39b2bb0U, 0x63c69157U, 0xdaa94fe6U, 0x5dba69d3U,
67 	0x5fbe61dfU, 0xdca557f2U, 0x7dfae913U, 0xcd871394U,
68 	0x7ffee11fU, 0x5ab475c1U, 0x6cd8ad75U, 0x5cb86dd5U,
69 	0xf7f3fb08U, 0x264c98d4U, 0xffe3db38U, 0xedc79354U,
70 	0xe8cd874aU, 0x9d274e69U, 0x6fdea17fU, 0x8e010203U,
71 	0x19326456U, 0xa05dbae7U, 0xf0fde71aU, 0x890f1e11U,
72 	0x0f1e3c22U, 0x070e1c12U, 0xaf4386c5U, 0xfbebcb20U,
73 	0x08102030U, 0x152a547eU, 0x0d1a342eU, 0x04081018U,
74 	0x01020406U, 0x64c88d45U, 0xdfa35bf8U, 0x76ecc529U,
75 	0x79f2f90bU, 0xdda753f4U, 0x3d7af48eU, 0x162c5874U,
76 	0x3f7efc82U, 0x376edcb2U, 0x6ddaa973U, 0x3870e090U,
77 	0xb96fdeb1U, 0x73e6d137U, 0xe9cf834cU, 0x356ad4beU,
78 	0x55aa49e3U, 0x71e2d93bU, 0x7bf6f107U, 0x8c050a0fU,
79 	0x72e4d531U, 0x880d1a17U, 0xf6f1ff0eU, 0x2a54a8fcU,
80 	0x3e7cf884U, 0x5ebc65d9U, 0x274e9cd2U, 0x468c0589U,
81 	0x0c183028U, 0x65ca8943U, 0x68d0bd6dU, 0x61c2995bU,
82 	0x03060c0aU, 0xc19f23bcU, 0x57ae41efU, 0xd6b17fceU,
83 	0xd9af43ecU, 0x58b07dcdU, 0xd8ad47eaU, 0x66cc8549U,
84 	0xd7b37bc8U, 0x3a74e89cU, 0xc88d078aU, 0x3c78f088U,
85 	0xfae9cf26U, 0x96316253U, 0xa753a6f5U, 0x982d5a77U,
86 	0xecc59752U, 0xb86ddab7U, 0xc7933ba8U, 0xae4182c3U,
87 	0x69d2b96bU, 0x4b9631a7U, 0xab4b96ddU, 0xa94f9ed1U,
88 	0x67ce814fU, 0x0a14283cU, 0x478e018fU, 0xf2f9ef16U,
89 	0xb577ee99U, 0x224488ccU, 0xe5d7b364U, 0xeec19f5eU,
90 	0xbe61c2a3U, 0x2b56acfaU, 0x811f3e21U, 0x1224486cU,
91 	0x831b362dU, 0x1b366c5aU, 0x0e1c3824U, 0x23468ccaU,
92 	0xf5f7f304U, 0x458a0983U, 0x214284c6U, 0xce811f9eU,
93 	0x499239abU, 0x2c58b0e8U, 0xf9efc32cU, 0xe6d1bf6eU,
94 	0xb671e293U, 0x2850a0f0U, 0x172e5c72U, 0x8219322bU,
95 	0x1a34685cU, 0x8b0b161dU, 0xfee1df3eU, 0x8a09121bU,
96 	0x09122436U, 0xc98f038cU, 0x87132635U, 0x4e9c25b9U,
97 	0xe1dfa37cU, 0x2e5cb8e4U, 0xe4d5b762U, 0xe0dda77aU,
98 	0xebcb8b40U, 0x903d7a47U, 0xa455aaffU, 0x1e3c7844U,
99 	0x85172e39U, 0x60c09d5dU, 0x00000000U, 0x254a94deU,
100 	0xf4f5f702U, 0xf1ffe31cU, 0x94356a5fU, 0x0b162c3aU,
101 	0xe7d3bb68U, 0x75eac923U, 0xefc39b58U, 0x3468d0b8U,
102 	0x3162c4a6U, 0xd4b577c2U, 0xd0bd67daU, 0x86112233U,
103 	0x7efce519U, 0xad478ec9U, 0xfde7d334U, 0x2952a4f6U,
104 	0x3060c0a0U, 0x3b76ec9aU, 0x9f234665U, 0xf8edc72aU,
105 	0xc6913faeU, 0x13264c6aU, 0x060c1814U, 0x050a141eU,
106 	0xc59733a4U, 0x11224466U, 0x77eec12fU, 0x7cf8ed15U,
107 	0x7af4f501U, 0x78f0fd0dU, 0x366cd8b4U, 0x1c387048U,
108 	0x3972e496U, 0x59b279cbU, 0x18306050U, 0x56ac45e9U,
109 	0xb37bf68dU, 0xb07dfa87U, 0x244890d8U, 0x204080c0U,
110 	0xb279f28bU, 0x9239724bU, 0xa35bb6edU, 0xc09d27baU,
111 	0x44880d85U, 0x62c49551U, 0x10204060U, 0xb475ea9fU,
112 	0x84152a3fU, 0x43861197U, 0x933b764dU, 0xc2992fb6U,
113 	0x4a9435a1U, 0xbd67cea9U, 0x8f030605U, 0x2d5ab4eeU,
114 	0xbc65caafU, 0x9c254a6fU, 0x6ad4b561U, 0x40801d9dU,
115 	0xcf831b98U, 0xa259b2ebU, 0x801d3a27U, 0x4f9e21bfU,
116 	0x1f3e7c42U, 0xca890f86U, 0xaa4992dbU, 0x42841591U,
117 };
118 
119 static const u32 T1[256] = {
120 	0x69babbd2U, 0xa854e54dU, 0x5e2fe2bcU, 0xe87425cdU,
121 	0xa653f751U, 0xbbd3d06bU, 0xb9d2d66fU, 0x9a4db329U,
122 	0xa050fd5dU, 0x45accf8aU, 0x078d090eU, 0x63bfa5c6U,
123 	0xe0703dddU, 0xa452f155U, 0x299a7b52U, 0x984cb52dU,
124 	0xc9ea468fU, 0xb7d5c473U, 0x33975566U, 0xbfd1dc63U,
125 	0x6633aaccU, 0xa251fb59U, 0xb65bc771U, 0x51a6f3a2U,
126 	0xa1defe5fU, 0x9048ad3dU, 0x4da8d79aU, 0x2f99715eU,
127 	0xabdbe04bU, 0x6432acc8U, 0x73b795e6U, 0xe5fc32d7U,
128 	0xdbe370abU, 0x219e6342U, 0x3f91417eU, 0x2b9b7d56U,
129 	0xd9e276afU, 0x6bbbbdd6U, 0x82419b19U, 0xdc6e79a5U,
130 	0x57a5f9aeU, 0x8bcb800bU, 0xd66b67b1U, 0x3795596eU,
131 	0x5fa1e1beU, 0xfbf310ebU, 0x7fb181feU, 0x04020c08U,
132 	0x85cc9217U, 0x95c4a237U, 0x3a1d4e74U, 0x28147850U,
133 	0x9bc3b02bU, 0xc6635791U, 0xa9dae64fU, 0xba5dd369U,
134 	0xbe5fdf61U, 0xa5dcf257U, 0xfa7d13e9U, 0x87cd9413U,
135 	0xfe7f1fe1U, 0xb45ac175U, 0xd86c75adU, 0xb85cd56dU,
136 	0xf3f708fbU, 0x4c26d498U, 0xe3ff38dbU, 0xc7ed5493U,
137 	0xcde84a87U, 0x279d694eU, 0xde6f7fa1U, 0x018e0302U,
138 	0x32195664U, 0x5da0e7baU, 0xfdf01ae7U, 0x0f89111eU,
139 	0x1e0f223cU, 0x0e07121cU, 0x43afc586U, 0xebfb20cbU,
140 	0x10083020U, 0x2a157e54U, 0x1a0d2e34U, 0x08041810U,
141 	0x02010604U, 0xc864458dU, 0xa3dff85bU, 0xec7629c5U,
142 	0xf2790bf9U, 0xa7ddf453U, 0x7a3d8ef4U, 0x2c167458U,
143 	0x7e3f82fcU, 0x6e37b2dcU, 0xda6d73a9U, 0x703890e0U,
144 	0x6fb9b1deU, 0xe67337d1U, 0xcfe94c83U, 0x6a35bed4U,
145 	0xaa55e349U, 0xe2713bd9U, 0xf67b07f1U, 0x058c0f0aU,
146 	0xe47231d5U, 0x0d88171aU, 0xf1f60effU, 0x542afca8U,
147 	0x7c3e84f8U, 0xbc5ed965U, 0x4e27d29cU, 0x8c468905U,
148 	0x180c2830U, 0xca654389U, 0xd0686dbdU, 0xc2615b99U,
149 	0x06030a0cU, 0x9fc1bc23U, 0xae57ef41U, 0xb1d6ce7fU,
150 	0xafd9ec43U, 0xb058cd7dU, 0xadd8ea47U, 0xcc664985U,
151 	0xb3d7c87bU, 0x743a9ce8U, 0x8dc88a07U, 0x783c88f0U,
152 	0xe9fa26cfU, 0x31965362U, 0x53a7f5a6U, 0x2d98775aU,
153 	0xc5ec5297U, 0x6db8b7daU, 0x93c7a83bU, 0x41aec382U,
154 	0xd2696bb9U, 0x964ba731U, 0x4babdd96U, 0x4fa9d19eU,
155 	0xce674f81U, 0x140a3c28U, 0x8e478f01U, 0xf9f216efU,
156 	0x77b599eeU, 0x4422cc88U, 0xd7e564b3U, 0xc1ee5e9fU,
157 	0x61bea3c2U, 0x562bfaacU, 0x1f81213eU, 0x24126c48U,
158 	0x1b832d36U, 0x361b5a6cU, 0x1c0e2438U, 0x4623ca8cU,
159 	0xf7f504f3U, 0x8a458309U, 0x4221c684U, 0x81ce9e1fU,
160 	0x9249ab39U, 0x582ce8b0U, 0xeff92cc3U, 0xd1e66ebfU,
161 	0x71b693e2U, 0x5028f0a0U, 0x2e17725cU, 0x19822b32U,
162 	0x341a5c68U, 0x0b8b1d16U, 0xe1fe3edfU, 0x098a1b12U,
163 	0x12093624U, 0x8fc98c03U, 0x13873526U, 0x9c4eb925U,
164 	0xdfe17ca3U, 0x5c2ee4b8U, 0xd5e462b7U, 0xdde07aa7U,
165 	0xcbeb408bU, 0x3d90477aU, 0x55a4ffaaU, 0x3c1e4478U,
166 	0x1785392eU, 0xc0605d9dU, 0x00000000U, 0x4a25de94U,
167 	0xf5f402f7U, 0xfff11ce3U, 0x35945f6aU, 0x160b3a2cU,
168 	0xd3e768bbU, 0xea7523c9U, 0xc3ef589bU, 0x6834b8d0U,
169 	0x6231a6c4U, 0xb5d4c277U, 0xbdd0da67U, 0x11863322U,
170 	0xfc7e19e5U, 0x47adc98eU, 0xe7fd34d3U, 0x5229f6a4U,
171 	0x6030a0c0U, 0x763b9aecU, 0x239f6546U, 0xedf82ac7U,
172 	0x91c6ae3fU, 0x26136a4cU, 0x0c061418U, 0x0a051e14U,
173 	0x97c5a433U, 0x22116644U, 0xee772fc1U, 0xf87c15edU,
174 	0xf47a01f5U, 0xf0780dfdU, 0x6c36b4d8U, 0x381c4870U,
175 	0x723996e4U, 0xb259cb79U, 0x30185060U, 0xac56e945U,
176 	0x7bb38df6U, 0x7db087faU, 0x4824d890U, 0x4020c080U,
177 	0x79b28bf2U, 0x39924b72U, 0x5ba3edb6U, 0x9dc0ba27U,
178 	0x8844850dU, 0xc4625195U, 0x20106040U, 0x75b49feaU,
179 	0x15843f2aU, 0x86439711U, 0x3b934d76U, 0x99c2b62fU,
180 	0x944aa135U, 0x67bda9ceU, 0x038f0506U, 0x5a2deeb4U,
181 	0x65bcafcaU, 0x259c6f4aU, 0xd46a61b5U, 0x80409d1dU,
182 	0x83cf981bU, 0x59a2ebb2U, 0x1d80273aU, 0x9e4fbf21U,
183 	0x3e1f427cU, 0x89ca860fU, 0x49aadb92U, 0x84429115U,
184 };
185 
186 static const u32 T2[256] = {
187 	0xd2bbba69U, 0x4de554a8U, 0xbce22f5eU, 0xcd2574e8U,
188 	0x51f753a6U, 0x6bd0d3bbU, 0x6fd6d2b9U, 0x29b34d9aU,
189 	0x5dfd50a0U, 0x8acfac45U, 0x0e098d07U, 0xc6a5bf63U,
190 	0xdd3d70e0U, 0x55f152a4U, 0x527b9a29U, 0x2db54c98U,
191 	0x8f46eac9U, 0x73c4d5b7U, 0x66559733U, 0x63dcd1bfU,
192 	0xccaa3366U, 0x59fb51a2U, 0x71c75bb6U, 0xa2f3a651U,
193 	0x5ffedea1U, 0x3dad4890U, 0x9ad7a84dU, 0x5e71992fU,
194 	0x4be0dbabU, 0xc8ac3264U, 0xe695b773U, 0xd732fce5U,
195 	0xab70e3dbU, 0x42639e21U, 0x7e41913fU, 0x567d9b2bU,
196 	0xaf76e2d9U, 0xd6bdbb6bU, 0x199b4182U, 0xa5796edcU,
197 	0xaef9a557U, 0x0b80cb8bU, 0xb1676bd6U, 0x6e599537U,
198 	0xbee1a15fU, 0xeb10f3fbU, 0xfe81b17fU, 0x080c0204U,
199 	0x1792cc85U, 0x37a2c495U, 0x744e1d3aU, 0x50781428U,
200 	0x2bb0c39bU, 0x915763c6U, 0x4fe6daa9U, 0x69d35dbaU,
201 	0x61df5fbeU, 0x57f2dca5U, 0xe9137dfaU, 0x1394cd87U,
202 	0xe11f7ffeU, 0x75c15ab4U, 0xad756cd8U, 0x6dd55cb8U,
203 	0xfb08f7f3U, 0x98d4264cU, 0xdb38ffe3U, 0x9354edc7U,
204 	0x874ae8cdU, 0x4e699d27U, 0xa17f6fdeU, 0x02038e01U,
205 	0x64561932U, 0xbae7a05dU, 0xe71af0fdU, 0x1e11890fU,
206 	0x3c220f1eU, 0x1c12070eU, 0x86c5af43U, 0xcb20fbebU,
207 	0x20300810U, 0x547e152aU, 0x342e0d1aU, 0x10180408U,
208 	0x04060102U, 0x8d4564c8U, 0x5bf8dfa3U, 0xc52976ecU,
209 	0xf90b79f2U, 0x53f4dda7U, 0xf48e3d7aU, 0x5874162cU,
210 	0xfc823f7eU, 0xdcb2376eU, 0xa9736ddaU, 0xe0903870U,
211 	0xdeb1b96fU, 0xd13773e6U, 0x834ce9cfU, 0xd4be356aU,
212 	0x49e355aaU, 0xd93b71e2U, 0xf1077bf6U, 0x0a0f8c05U,
213 	0xd53172e4U, 0x1a17880dU, 0xff0ef6f1U, 0xa8fc2a54U,
214 	0xf8843e7cU, 0x65d95ebcU, 0x9cd2274eU, 0x0589468cU,
215 	0x30280c18U, 0x894365caU, 0xbd6d68d0U, 0x995b61c2U,
216 	0x0c0a0306U, 0x23bcc19fU, 0x41ef57aeU, 0x7fced6b1U,
217 	0x43ecd9afU, 0x7dcd58b0U, 0x47ead8adU, 0x854966ccU,
218 	0x7bc8d7b3U, 0xe89c3a74U, 0x078ac88dU, 0xf0883c78U,
219 	0xcf26fae9U, 0x62539631U, 0xa6f5a753U, 0x5a77982dU,
220 	0x9752ecc5U, 0xdab7b86dU, 0x3ba8c793U, 0x82c3ae41U,
221 	0xb96b69d2U, 0x31a74b96U, 0x96ddab4bU, 0x9ed1a94fU,
222 	0x814f67ceU, 0x283c0a14U, 0x018f478eU, 0xef16f2f9U,
223 	0xee99b577U, 0x88cc2244U, 0xb364e5d7U, 0x9f5eeec1U,
224 	0xc2a3be61U, 0xacfa2b56U, 0x3e21811fU, 0x486c1224U,
225 	0x362d831bU, 0x6c5a1b36U, 0x38240e1cU, 0x8cca2346U,
226 	0xf304f5f7U, 0x0983458aU, 0x84c62142U, 0x1f9ece81U,
227 	0x39ab4992U, 0xb0e82c58U, 0xc32cf9efU, 0xbf6ee6d1U,
228 	0xe293b671U, 0xa0f02850U, 0x5c72172eU, 0x322b8219U,
229 	0x685c1a34U, 0x161d8b0bU, 0xdf3efee1U, 0x121b8a09U,
230 	0x24360912U, 0x038cc98fU, 0x26358713U, 0x25b94e9cU,
231 	0xa37ce1dfU, 0xb8e42e5cU, 0xb762e4d5U, 0xa77ae0ddU,
232 	0x8b40ebcbU, 0x7a47903dU, 0xaaffa455U, 0x78441e3cU,
233 	0x2e398517U, 0x9d5d60c0U, 0x00000000U, 0x94de254aU,
234 	0xf702f4f5U, 0xe31cf1ffU, 0x6a5f9435U, 0x2c3a0b16U,
235 	0xbb68e7d3U, 0xc92375eaU, 0x9b58efc3U, 0xd0b83468U,
236 	0xc4a63162U, 0x77c2d4b5U, 0x67dad0bdU, 0x22338611U,
237 	0xe5197efcU, 0x8ec9ad47U, 0xd334fde7U, 0xa4f62952U,
238 	0xc0a03060U, 0xec9a3b76U, 0x46659f23U, 0xc72af8edU,
239 	0x3faec691U, 0x4c6a1326U, 0x1814060cU, 0x141e050aU,
240 	0x33a4c597U, 0x44661122U, 0xc12f77eeU, 0xed157cf8U,
241 	0xf5017af4U, 0xfd0d78f0U, 0xd8b4366cU, 0x70481c38U,
242 	0xe4963972U, 0x79cb59b2U, 0x60501830U, 0x45e956acU,
243 	0xf68db37bU, 0xfa87b07dU, 0x90d82448U, 0x80c02040U,
244 	0xf28bb279U, 0x724b9239U, 0xb6eda35bU, 0x27bac09dU,
245 	0x0d854488U, 0x955162c4U, 0x40601020U, 0xea9fb475U,
246 	0x2a3f8415U, 0x11974386U, 0x764d933bU, 0x2fb6c299U,
247 	0x35a14a94U, 0xcea9bd67U, 0x06058f03U, 0xb4ee2d5aU,
248 	0xcaafbc65U, 0x4a6f9c25U, 0xb5616ad4U, 0x1d9d4080U,
249 	0x1b98cf83U, 0xb2eba259U, 0x3a27801dU, 0x21bf4f9eU,
250 	0x7c421f3eU, 0x0f86ca89U, 0x92dbaa49U, 0x15914284U,
251 };
252 
253 static const u32 T3[256] = {
254 	0xbbd269baU, 0xe54da854U, 0xe2bc5e2fU, 0x25cde874U,
255 	0xf751a653U, 0xd06bbbd3U, 0xd66fb9d2U, 0xb3299a4dU,
256 	0xfd5da050U, 0xcf8a45acU, 0x090e078dU, 0xa5c663bfU,
257 	0x3ddde070U, 0xf155a452U, 0x7b52299aU, 0xb52d984cU,
258 	0x468fc9eaU, 0xc473b7d5U, 0x55663397U, 0xdc63bfd1U,
259 	0xaacc6633U, 0xfb59a251U, 0xc771b65bU, 0xf3a251a6U,
260 	0xfe5fa1deU, 0xad3d9048U, 0xd79a4da8U, 0x715e2f99U,
261 	0xe04babdbU, 0xacc86432U, 0x95e673b7U, 0x32d7e5fcU,
262 	0x70abdbe3U, 0x6342219eU, 0x417e3f91U, 0x7d562b9bU,
263 	0x76afd9e2U, 0xbdd66bbbU, 0x9b198241U, 0x79a5dc6eU,
264 	0xf9ae57a5U, 0x800b8bcbU, 0x67b1d66bU, 0x596e3795U,
265 	0xe1be5fa1U, 0x10ebfbf3U, 0x81fe7fb1U, 0x0c080402U,
266 	0x921785ccU, 0xa23795c4U, 0x4e743a1dU, 0x78502814U,
267 	0xb02b9bc3U, 0x5791c663U, 0xe64fa9daU, 0xd369ba5dU,
268 	0xdf61be5fU, 0xf257a5dcU, 0x13e9fa7dU, 0x941387cdU,
269 	0x1fe1fe7fU, 0xc175b45aU, 0x75add86cU, 0xd56db85cU,
270 	0x08fbf3f7U, 0xd4984c26U, 0x38dbe3ffU, 0x5493c7edU,
271 	0x4a87cde8U, 0x694e279dU, 0x7fa1de6fU, 0x0302018eU,
272 	0x56643219U, 0xe7ba5da0U, 0x1ae7fdf0U, 0x111e0f89U,
273 	0x223c1e0fU, 0x121c0e07U, 0xc58643afU, 0x20cbebfbU,
274 	0x30201008U, 0x7e542a15U, 0x2e341a0dU, 0x18100804U,
275 	0x06040201U, 0x458dc864U, 0xf85ba3dfU, 0x29c5ec76U,
276 	0x0bf9f279U, 0xf453a7ddU, 0x8ef47a3dU, 0x74582c16U,
277 	0x82fc7e3fU, 0xb2dc6e37U, 0x73a9da6dU, 0x90e07038U,
278 	0xb1de6fb9U, 0x37d1e673U, 0x4c83cfe9U, 0xbed46a35U,
279 	0xe349aa55U, 0x3bd9e271U, 0x07f1f67bU, 0x0f0a058cU,
280 	0x31d5e472U, 0x171a0d88U, 0x0efff1f6U, 0xfca8542aU,
281 	0x84f87c3eU, 0xd965bc5eU, 0xd29c4e27U, 0x89058c46U,
282 	0x2830180cU, 0x4389ca65U, 0x6dbdd068U, 0x5b99c261U,
283 	0x0a0c0603U, 0xbc239fc1U, 0xef41ae57U, 0xce7fb1d6U,
284 	0xec43afd9U, 0xcd7db058U, 0xea47add8U, 0x4985cc66U,
285 	0xc87bb3d7U, 0x9ce8743aU, 0x8a078dc8U, 0x88f0783cU,
286 	0x26cfe9faU, 0x53623196U, 0xf5a653a7U, 0x775a2d98U,
287 	0x5297c5ecU, 0xb7da6db8U, 0xa83b93c7U, 0xc38241aeU,
288 	0x6bb9d269U, 0xa731964bU, 0xdd964babU, 0xd19e4fa9U,
289 	0x4f81ce67U, 0x3c28140aU, 0x8f018e47U, 0x16eff9f2U,
290 	0x99ee77b5U, 0xcc884422U, 0x64b3d7e5U, 0x5e9fc1eeU,
291 	0xa3c261beU, 0xfaac562bU, 0x213e1f81U, 0x6c482412U,
292 	0x2d361b83U, 0x5a6c361bU, 0x24381c0eU, 0xca8c4623U,
293 	0x04f3f7f5U, 0x83098a45U, 0xc6844221U, 0x9e1f81ceU,
294 	0xab399249U, 0xe8b0582cU, 0x2cc3eff9U, 0x6ebfd1e6U,
295 	0x93e271b6U, 0xf0a05028U, 0x725c2e17U, 0x2b321982U,
296 	0x5c68341aU, 0x1d160b8bU, 0x3edfe1feU, 0x1b12098aU,
297 	0x36241209U, 0x8c038fc9U, 0x35261387U, 0xb9259c4eU,
298 	0x7ca3dfe1U, 0xe4b85c2eU, 0x62b7d5e4U, 0x7aa7dde0U,
299 	0x408bcbebU, 0x477a3d90U, 0xffaa55a4U, 0x44783c1eU,
300 	0x392e1785U, 0x5d9dc060U, 0x00000000U, 0xde944a25U,
301 	0x02f7f5f4U, 0x1ce3fff1U, 0x5f6a3594U, 0x3a2c160bU,
302 	0x68bbd3e7U, 0x23c9ea75U, 0x589bc3efU, 0xb8d06834U,
303 	0xa6c46231U, 0xc277b5d4U, 0xda67bdd0U, 0x33221186U,
304 	0x19e5fc7eU, 0xc98e47adU, 0x34d3e7fdU, 0xf6a45229U,
305 	0xa0c06030U, 0x9aec763bU, 0x6546239fU, 0x2ac7edf8U,
306 	0xae3f91c6U, 0x6a4c2613U, 0x14180c06U, 0x1e140a05U,
307 	0xa43397c5U, 0x66442211U, 0x2fc1ee77U, 0x15edf87cU,
308 	0x01f5f47aU, 0x0dfdf078U, 0xb4d86c36U, 0x4870381cU,
309 	0x96e47239U, 0xcb79b259U, 0x50603018U, 0xe945ac56U,
310 	0x8df67bb3U, 0x87fa7db0U, 0xd8904824U, 0xc0804020U,
311 	0x8bf279b2U, 0x4b723992U, 0xedb65ba3U, 0xba279dc0U,
312 	0x850d8844U, 0x5195c462U, 0x60402010U, 0x9fea75b4U,
313 	0x3f2a1584U, 0x97118643U, 0x4d763b93U, 0xb62f99c2U,
314 	0xa135944aU, 0xa9ce67bdU, 0x0506038fU, 0xeeb45a2dU,
315 	0xafca65bcU, 0x6f4a259cU, 0x61b5d46aU, 0x9d1d8040U,
316 	0x981b83cfU, 0xebb259a2U, 0x273a1d80U, 0xbf219e4fU,
317 	0x427c3e1fU, 0x860f89caU, 0xdb9249aaU, 0x91158442U,
318 };
319 
320 static const u32 T4[256] = {
321 	0xbabababaU, 0x54545454U, 0x2f2f2f2fU, 0x74747474U,
322 	0x53535353U, 0xd3d3d3d3U, 0xd2d2d2d2U, 0x4d4d4d4dU,
323 	0x50505050U, 0xacacacacU, 0x8d8d8d8dU, 0xbfbfbfbfU,
324 	0x70707070U, 0x52525252U, 0x9a9a9a9aU, 0x4c4c4c4cU,
325 	0xeaeaeaeaU, 0xd5d5d5d5U, 0x97979797U, 0xd1d1d1d1U,
326 	0x33333333U, 0x51515151U, 0x5b5b5b5bU, 0xa6a6a6a6U,
327 	0xdedededeU, 0x48484848U, 0xa8a8a8a8U, 0x99999999U,
328 	0xdbdbdbdbU, 0x32323232U, 0xb7b7b7b7U, 0xfcfcfcfcU,
329 	0xe3e3e3e3U, 0x9e9e9e9eU, 0x91919191U, 0x9b9b9b9bU,
330 	0xe2e2e2e2U, 0xbbbbbbbbU, 0x41414141U, 0x6e6e6e6eU,
331 	0xa5a5a5a5U, 0xcbcbcbcbU, 0x6b6b6b6bU, 0x95959595U,
332 	0xa1a1a1a1U, 0xf3f3f3f3U, 0xb1b1b1b1U, 0x02020202U,
333 	0xccccccccU, 0xc4c4c4c4U, 0x1d1d1d1dU, 0x14141414U,
334 	0xc3c3c3c3U, 0x63636363U, 0xdadadadaU, 0x5d5d5d5dU,
335 	0x5f5f5f5fU, 0xdcdcdcdcU, 0x7d7d7d7dU, 0xcdcdcdcdU,
336 	0x7f7f7f7fU, 0x5a5a5a5aU, 0x6c6c6c6cU, 0x5c5c5c5cU,
337 	0xf7f7f7f7U, 0x26262626U, 0xffffffffU, 0xededededU,
338 	0xe8e8e8e8U, 0x9d9d9d9dU, 0x6f6f6f6fU, 0x8e8e8e8eU,
339 	0x19191919U, 0xa0a0a0a0U, 0xf0f0f0f0U, 0x89898989U,
340 	0x0f0f0f0fU, 0x07070707U, 0xafafafafU, 0xfbfbfbfbU,
341 	0x08080808U, 0x15151515U, 0x0d0d0d0dU, 0x04040404U,
342 	0x01010101U, 0x64646464U, 0xdfdfdfdfU, 0x76767676U,
343 	0x79797979U, 0xddddddddU, 0x3d3d3d3dU, 0x16161616U,
344 	0x3f3f3f3fU, 0x37373737U, 0x6d6d6d6dU, 0x38383838U,
345 	0xb9b9b9b9U, 0x73737373U, 0xe9e9e9e9U, 0x35353535U,
346 	0x55555555U, 0x71717171U, 0x7b7b7b7bU, 0x8c8c8c8cU,
347 	0x72727272U, 0x88888888U, 0xf6f6f6f6U, 0x2a2a2a2aU,
348 	0x3e3e3e3eU, 0x5e5e5e5eU, 0x27272727U, 0x46464646U,
349 	0x0c0c0c0cU, 0x65656565U, 0x68686868U, 0x61616161U,
350 	0x03030303U, 0xc1c1c1c1U, 0x57575757U, 0xd6d6d6d6U,
351 	0xd9d9d9d9U, 0x58585858U, 0xd8d8d8d8U, 0x66666666U,
352 	0xd7d7d7d7U, 0x3a3a3a3aU, 0xc8c8c8c8U, 0x3c3c3c3cU,
353 	0xfafafafaU, 0x96969696U, 0xa7a7a7a7U, 0x98989898U,
354 	0xececececU, 0xb8b8b8b8U, 0xc7c7c7c7U, 0xaeaeaeaeU,
355 	0x69696969U, 0x4b4b4b4bU, 0xababababU, 0xa9a9a9a9U,
356 	0x67676767U, 0x0a0a0a0aU, 0x47474747U, 0xf2f2f2f2U,
357 	0xb5b5b5b5U, 0x22222222U, 0xe5e5e5e5U, 0xeeeeeeeeU,
358 	0xbebebebeU, 0x2b2b2b2bU, 0x81818181U, 0x12121212U,
359 	0x83838383U, 0x1b1b1b1bU, 0x0e0e0e0eU, 0x23232323U,
360 	0xf5f5f5f5U, 0x45454545U, 0x21212121U, 0xcecececeU,
361 	0x49494949U, 0x2c2c2c2cU, 0xf9f9f9f9U, 0xe6e6e6e6U,
362 	0xb6b6b6b6U, 0x28282828U, 0x17171717U, 0x82828282U,
363 	0x1a1a1a1aU, 0x8b8b8b8bU, 0xfefefefeU, 0x8a8a8a8aU,
364 	0x09090909U, 0xc9c9c9c9U, 0x87878787U, 0x4e4e4e4eU,
365 	0xe1e1e1e1U, 0x2e2e2e2eU, 0xe4e4e4e4U, 0xe0e0e0e0U,
366 	0xebebebebU, 0x90909090U, 0xa4a4a4a4U, 0x1e1e1e1eU,
367 	0x85858585U, 0x60606060U, 0x00000000U, 0x25252525U,
368 	0xf4f4f4f4U, 0xf1f1f1f1U, 0x94949494U, 0x0b0b0b0bU,
369 	0xe7e7e7e7U, 0x75757575U, 0xefefefefU, 0x34343434U,
370 	0x31313131U, 0xd4d4d4d4U, 0xd0d0d0d0U, 0x86868686U,
371 	0x7e7e7e7eU, 0xadadadadU, 0xfdfdfdfdU, 0x29292929U,
372 	0x30303030U, 0x3b3b3b3bU, 0x9f9f9f9fU, 0xf8f8f8f8U,
373 	0xc6c6c6c6U, 0x13131313U, 0x06060606U, 0x05050505U,
374 	0xc5c5c5c5U, 0x11111111U, 0x77777777U, 0x7c7c7c7cU,
375 	0x7a7a7a7aU, 0x78787878U, 0x36363636U, 0x1c1c1c1cU,
376 	0x39393939U, 0x59595959U, 0x18181818U, 0x56565656U,
377 	0xb3b3b3b3U, 0xb0b0b0b0U, 0x24242424U, 0x20202020U,
378 	0xb2b2b2b2U, 0x92929292U, 0xa3a3a3a3U, 0xc0c0c0c0U,
379 	0x44444444U, 0x62626262U, 0x10101010U, 0xb4b4b4b4U,
380 	0x84848484U, 0x43434343U, 0x93939393U, 0xc2c2c2c2U,
381 	0x4a4a4a4aU, 0xbdbdbdbdU, 0x8f8f8f8fU, 0x2d2d2d2dU,
382 	0xbcbcbcbcU, 0x9c9c9c9cU, 0x6a6a6a6aU, 0x40404040U,
383 	0xcfcfcfcfU, 0xa2a2a2a2U, 0x80808080U, 0x4f4f4f4fU,
384 	0x1f1f1f1fU, 0xcacacacaU, 0xaaaaaaaaU, 0x42424242U,
385 };
386 
387 static const u32 T5[256] = {
388 	0x00000000U, 0x01020608U, 0x02040c10U, 0x03060a18U,
389 	0x04081820U, 0x050a1e28U, 0x060c1430U, 0x070e1238U,
390 	0x08103040U, 0x09123648U, 0x0a143c50U, 0x0b163a58U,
391 	0x0c182860U, 0x0d1a2e68U, 0x0e1c2470U, 0x0f1e2278U,
392 	0x10206080U, 0x11226688U, 0x12246c90U, 0x13266a98U,
393 	0x142878a0U, 0x152a7ea8U, 0x162c74b0U, 0x172e72b8U,
394 	0x183050c0U, 0x193256c8U, 0x1a345cd0U, 0x1b365ad8U,
395 	0x1c3848e0U, 0x1d3a4ee8U, 0x1e3c44f0U, 0x1f3e42f8U,
396 	0x2040c01dU, 0x2142c615U, 0x2244cc0dU, 0x2346ca05U,
397 	0x2448d83dU, 0x254ade35U, 0x264cd42dU, 0x274ed225U,
398 	0x2850f05dU, 0x2952f655U, 0x2a54fc4dU, 0x2b56fa45U,
399 	0x2c58e87dU, 0x2d5aee75U, 0x2e5ce46dU, 0x2f5ee265U,
400 	0x3060a09dU, 0x3162a695U, 0x3264ac8dU, 0x3366aa85U,
401 	0x3468b8bdU, 0x356abeb5U, 0x366cb4adU, 0x376eb2a5U,
402 	0x387090ddU, 0x397296d5U, 0x3a749ccdU, 0x3b769ac5U,
403 	0x3c7888fdU, 0x3d7a8ef5U, 0x3e7c84edU, 0x3f7e82e5U,
404 	0x40809d3aU, 0x41829b32U, 0x4284912aU, 0x43869722U,
405 	0x4488851aU, 0x458a8312U, 0x468c890aU, 0x478e8f02U,
406 	0x4890ad7aU, 0x4992ab72U, 0x4a94a16aU, 0x4b96a762U,
407 	0x4c98b55aU, 0x4d9ab352U, 0x4e9cb94aU, 0x4f9ebf42U,
408 	0x50a0fdbaU, 0x51a2fbb2U, 0x52a4f1aaU, 0x53a6f7a2U,
409 	0x54a8e59aU, 0x55aae392U, 0x56ace98aU, 0x57aeef82U,
410 	0x58b0cdfaU, 0x59b2cbf2U, 0x5ab4c1eaU, 0x5bb6c7e2U,
411 	0x5cb8d5daU, 0x5dbad3d2U, 0x5ebcd9caU, 0x5fbedfc2U,
412 	0x60c05d27U, 0x61c25b2fU, 0x62c45137U, 0x63c6573fU,
413 	0x64c84507U, 0x65ca430fU, 0x66cc4917U, 0x67ce4f1fU,
414 	0x68d06d67U, 0x69d26b6fU, 0x6ad46177U, 0x6bd6677fU,
415 	0x6cd87547U, 0x6dda734fU, 0x6edc7957U, 0x6fde7f5fU,
416 	0x70e03da7U, 0x71e23bafU, 0x72e431b7U, 0x73e637bfU,
417 	0x74e82587U, 0x75ea238fU, 0x76ec2997U, 0x77ee2f9fU,
418 	0x78f00de7U, 0x79f20befU, 0x7af401f7U, 0x7bf607ffU,
419 	0x7cf815c7U, 0x7dfa13cfU, 0x7efc19d7U, 0x7ffe1fdfU,
420 	0x801d2774U, 0x811f217cU, 0x82192b64U, 0x831b2d6cU,
421 	0x84153f54U, 0x8517395cU, 0x86113344U, 0x8713354cU,
422 	0x880d1734U, 0x890f113cU, 0x8a091b24U, 0x8b0b1d2cU,
423 	0x8c050f14U, 0x8d07091cU, 0x8e010304U, 0x8f03050cU,
424 	0x903d47f4U, 0x913f41fcU, 0x92394be4U, 0x933b4decU,
425 	0x94355fd4U, 0x953759dcU, 0x963153c4U, 0x973355ccU,
426 	0x982d77b4U, 0x992f71bcU, 0x9a297ba4U, 0x9b2b7dacU,
427 	0x9c256f94U, 0x9d27699cU, 0x9e216384U, 0x9f23658cU,
428 	0xa05de769U, 0xa15fe161U, 0xa259eb79U, 0xa35bed71U,
429 	0xa455ff49U, 0xa557f941U, 0xa651f359U, 0xa753f551U,
430 	0xa84dd729U, 0xa94fd121U, 0xaa49db39U, 0xab4bdd31U,
431 	0xac45cf09U, 0xad47c901U, 0xae41c319U, 0xaf43c511U,
432 	0xb07d87e9U, 0xb17f81e1U, 0xb2798bf9U, 0xb37b8df1U,
433 	0xb4759fc9U, 0xb57799c1U, 0xb67193d9U, 0xb77395d1U,
434 	0xb86db7a9U, 0xb96fb1a1U, 0xba69bbb9U, 0xbb6bbdb1U,
435 	0xbc65af89U, 0xbd67a981U, 0xbe61a399U, 0xbf63a591U,
436 	0xc09dba4eU, 0xc19fbc46U, 0xc299b65eU, 0xc39bb056U,
437 	0xc495a26eU, 0xc597a466U, 0xc691ae7eU, 0xc793a876U,
438 	0xc88d8a0eU, 0xc98f8c06U, 0xca89861eU, 0xcb8b8016U,
439 	0xcc85922eU, 0xcd879426U, 0xce819e3eU, 0xcf839836U,
440 	0xd0bddaceU, 0xd1bfdcc6U, 0xd2b9d6deU, 0xd3bbd0d6U,
441 	0xd4b5c2eeU, 0xd5b7c4e6U, 0xd6b1cefeU, 0xd7b3c8f6U,
442 	0xd8adea8eU, 0xd9afec86U, 0xdaa9e69eU, 0xdbabe096U,
443 	0xdca5f2aeU, 0xdda7f4a6U, 0xdea1febeU, 0xdfa3f8b6U,
444 	0xe0dd7a53U, 0xe1df7c5bU, 0xe2d97643U, 0xe3db704bU,
445 	0xe4d56273U, 0xe5d7647bU, 0xe6d16e63U, 0xe7d3686bU,
446 	0xe8cd4a13U, 0xe9cf4c1bU, 0xeac94603U, 0xebcb400bU,
447 	0xecc55233U, 0xedc7543bU, 0xeec15e23U, 0xefc3582bU,
448 	0xf0fd1ad3U, 0xf1ff1cdbU, 0xf2f916c3U, 0xf3fb10cbU,
449 	0xf4f502f3U, 0xf5f704fbU, 0xf6f10ee3U, 0xf7f308ebU,
450 	0xf8ed2a93U, 0xf9ef2c9bU, 0xfae92683U, 0xfbeb208bU,
451 	0xfce532b3U, 0xfde734bbU, 0xfee13ea3U, 0xffe338abU,
452 };
453 
454 static const u32 rc[] = {
455 	0xba542f74U, 0x53d3d24dU, 0x50ac8dbfU, 0x70529a4cU,
456 	0xead597d1U, 0x33515ba6U, 0xde48a899U, 0xdb32b7fcU,
457 	0xe39e919bU, 0xe2bb416eU, 0xa5cb6b95U, 0xa1f3b102U,
458 	0xccc41d14U, 0xc363da5dU, 0x5fdc7dcdU, 0x7f5a6c5cU,
459 	0xf726ffedU, 0xe89d6f8eU, 0x19a0f089U,
460 };
461 
462 static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key,
463 			 unsigned int key_len)
464 {
465 	struct anubis_ctx *ctx = crypto_tfm_ctx(tfm);
466 	const __be32 *key = (const __be32 *)in_key;
467 	u32 *flags = &tfm->crt_flags;
468 	int N, R, i, r;
469 	u32 kappa[ANUBIS_MAX_N];
470 	u32 inter[ANUBIS_MAX_N];
471 
472 	switch (key_len) {
473 		case 16: case 20: case 24: case 28:
474 		case 32: case 36: case 40:
475 			break;
476 		default:
477 			*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
478 			return -EINVAL;
479 	}
480 
481 	ctx->key_len = key_len * 8;
482 	N = ctx->key_len >> 5;
483 	ctx->R = R = 8 + N;
484 
485 	/* * map cipher key to initial key state (mu): */
486 	for (i = 0; i < N; i++)
487 		kappa[i] = be32_to_cpu(key[i]);
488 
489 	/*
490 	 * generate R + 1 round keys:
491 	 */
492 	for (r = 0; r <= R; r++) {
493 		u32 K0, K1, K2, K3;
494 		/*
495 		 * generate r-th round key K^r:
496 		 */
497 		K0 = T4[(kappa[N - 1] >> 24)       ];
498 		K1 = T4[(kappa[N - 1] >> 16) & 0xff];
499 		K2 = T4[(kappa[N - 1] >>  8) & 0xff];
500 		K3 = T4[(kappa[N - 1]      ) & 0xff];
501 		for (i = N - 2; i >= 0; i--) {
502 			K0 = T4[(kappa[i] >> 24)       ] ^
503 				(T5[(K0 >> 24)       ] & 0xff000000U) ^
504 				(T5[(K0 >> 16) & 0xff] & 0x00ff0000U) ^
505 				(T5[(K0 >>  8) & 0xff] & 0x0000ff00U) ^
506 				(T5[(K0      ) & 0xff] & 0x000000ffU);
507 			K1 = T4[(kappa[i] >> 16) & 0xff] ^
508 				(T5[(K1 >> 24)       ] & 0xff000000U) ^
509 				(T5[(K1 >> 16) & 0xff] & 0x00ff0000U) ^
510 				(T5[(K1 >>  8) & 0xff] & 0x0000ff00U) ^
511 				(T5[(K1      ) & 0xff] & 0x000000ffU);
512 			K2 = T4[(kappa[i] >>  8) & 0xff] ^
513 				(T5[(K2 >> 24)       ] & 0xff000000U) ^
514 				(T5[(K2 >> 16) & 0xff] & 0x00ff0000U) ^
515 				(T5[(K2 >>  8) & 0xff] & 0x0000ff00U) ^
516 				(T5[(K2      ) & 0xff] & 0x000000ffU);
517 			K3 = T4[(kappa[i]      ) & 0xff] ^
518 				(T5[(K3 >> 24)       ] & 0xff000000U) ^
519 				(T5[(K3 >> 16) & 0xff] & 0x00ff0000U) ^
520 				(T5[(K3 >>  8) & 0xff] & 0x0000ff00U) ^
521 				(T5[(K3      ) & 0xff] & 0x000000ffU);
522 		}
523 
524 		ctx->E[r][0] = K0;
525 		ctx->E[r][1] = K1;
526 		ctx->E[r][2] = K2;
527 		ctx->E[r][3] = K3;
528 
529 		/*
530 		 * compute kappa^{r+1} from kappa^r:
531 		 */
532 		if (r == R)
533 			break;
534 		for (i = 0; i < N; i++) {
535 			int j = i;
536 			inter[i]  = T0[(kappa[j--] >> 24)       ];
537 			if (j < 0)
538 				j = N - 1;
539 			inter[i] ^= T1[(kappa[j--] >> 16) & 0xff];
540 			if (j < 0)
541 				j = N - 1;
542 			inter[i] ^= T2[(kappa[j--] >>  8) & 0xff];
543 			if (j < 0)
544 				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 	 * generate inverse key schedule: K'^0 = K^R, K'^R =
554 	 * 				  K^0, K'^r = theta(K^{R-r}):
555 	 */
556 	for (i = 0; i < 4; i++) {
557 		ctx->D[0][i] = ctx->E[R][i];
558 		ctx->D[R][i] = ctx->E[0][i];
559 	}
560 	for (r = 1; r < R; r++) {
561 		for (i = 0; i < 4; i++) {
562 			u32 v = ctx->E[R - r][i];
563 			ctx->D[r][i] =
564 				T0[T4[(v >> 24)       ] & 0xff] ^
565 				T1[T4[(v >> 16) & 0xff] & 0xff] ^
566 				T2[T4[(v >>  8) & 0xff] & 0xff] ^
567 				T3[T4[(v      ) & 0xff] & 0xff];
568 		}
569 	}
570 
571 	return 0;
572 }
573 
574 static void anubis_crypt(u32 roundKey[ANUBIS_MAX_ROUNDS + 1][4],
575 		u8 *ciphertext, const u8 *plaintext, const int R)
576 {
577 	const __be32 *src = (const __be32 *)plaintext;
578 	__be32 *dst = (__be32 *)ciphertext;
579 	int i, r;
580 	u32 state[4];
581 	u32 inter[4];
582 
583 	/*
584 	 * map plaintext block to cipher state (mu)
585 	 * and add initial round key (sigma[K^0]):
586 	 */
587 	for (i = 0; i < 4; i++)
588 		state[i] = be32_to_cpu(src[i]) ^ roundKey[0][i];
589 
590 	/*
591 	 * R - 1 full rounds:
592 	 */
593 
594 	for (r = 1; r < R; r++) {
595 		inter[0] =
596 			T0[(state[0] >> 24)       ] ^
597 			T1[(state[1] >> 24)       ] ^
598 			T2[(state[2] >> 24)       ] ^
599 			T3[(state[3] >> 24)       ] ^
600 			roundKey[r][0];
601 		inter[1] =
602 			T0[(state[0] >> 16) & 0xff] ^
603 			T1[(state[1] >> 16) & 0xff] ^
604 			T2[(state[2] >> 16) & 0xff] ^
605 			T3[(state[3] >> 16) & 0xff] ^
606 			roundKey[r][1];
607 		inter[2] =
608 			T0[(state[0] >>  8) & 0xff] ^
609 			T1[(state[1] >>  8) & 0xff] ^
610 			T2[(state[2] >>  8) & 0xff] ^
611 			T3[(state[3] >>  8) & 0xff] ^
612 			roundKey[r][2];
613 		inter[3] =
614 			T0[(state[0]      ) & 0xff] ^
615 			T1[(state[1]      ) & 0xff] ^
616 			T2[(state[2]      ) & 0xff] ^
617 			T3[(state[3]      ) & 0xff] ^
618 			roundKey[r][3];
619 		state[0] = inter[0];
620 		state[1] = inter[1];
621 		state[2] = inter[2];
622 		state[3] = inter[3];
623 	}
624 
625 	/*
626 	 * last round:
627 	 */
628 
629 	inter[0] =
630 		(T0[(state[0] >> 24)       ] & 0xff000000U) ^
631 		(T1[(state[1] >> 24)       ] & 0x00ff0000U) ^
632 		(T2[(state[2] >> 24)       ] & 0x0000ff00U) ^
633 		(T3[(state[3] >> 24)       ] & 0x000000ffU) ^
634 		roundKey[R][0];
635 	inter[1] =
636 		(T0[(state[0] >> 16) & 0xff] & 0xff000000U) ^
637 		(T1[(state[1] >> 16) & 0xff] & 0x00ff0000U) ^
638 		(T2[(state[2] >> 16) & 0xff] & 0x0000ff00U) ^
639 		(T3[(state[3] >> 16) & 0xff] & 0x000000ffU) ^
640 		roundKey[R][1];
641 	inter[2] =
642 		(T0[(state[0] >>  8) & 0xff] & 0xff000000U) ^
643 		(T1[(state[1] >>  8) & 0xff] & 0x00ff0000U) ^
644 		(T2[(state[2] >>  8) & 0xff] & 0x0000ff00U) ^
645 		(T3[(state[3] >>  8) & 0xff] & 0x000000ffU) ^
646 		roundKey[R][2];
647 	inter[3] =
648 		(T0[(state[0]      ) & 0xff] & 0xff000000U) ^
649 		(T1[(state[1]      ) & 0xff] & 0x00ff0000U) ^
650 		(T2[(state[2]      ) & 0xff] & 0x0000ff00U) ^
651 		(T3[(state[3]      ) & 0xff] & 0x000000ffU) ^
652 		roundKey[R][3];
653 
654 	/*
655 	 * map cipher state to ciphertext block (mu^{-1}):
656 	 */
657 
658 	for (i = 0; i < 4; i++)
659 		dst[i] = cpu_to_be32(inter[i]);
660 }
661 
662 static void anubis_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
663 {
664 	struct anubis_ctx *ctx = crypto_tfm_ctx(tfm);
665 	anubis_crypt(ctx->E, dst, src, ctx->R);
666 }
667 
668 static void anubis_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
669 {
670 	struct anubis_ctx *ctx = crypto_tfm_ctx(tfm);
671 	anubis_crypt(ctx->D, dst, src, ctx->R);
672 }
673 
674 static struct crypto_alg anubis_alg = {
675 	.cra_name		=	"anubis",
676 	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
677 	.cra_blocksize		=	ANUBIS_BLOCK_SIZE,
678 	.cra_ctxsize		=	sizeof (struct anubis_ctx),
679 	.cra_alignmask		=	3,
680 	.cra_module		=	THIS_MODULE,
681 	.cra_u			=	{ .cipher = {
682 	.cia_min_keysize	=	ANUBIS_MIN_KEY_SIZE,
683 	.cia_max_keysize	=	ANUBIS_MAX_KEY_SIZE,
684 	.cia_setkey		= 	anubis_setkey,
685 	.cia_encrypt		=	anubis_encrypt,
686 	.cia_decrypt		=	anubis_decrypt } }
687 };
688 
689 static int __init anubis_mod_init(void)
690 {
691 	int ret = 0;
692 
693 	ret = crypto_register_alg(&anubis_alg);
694 	return ret;
695 }
696 
697 static void __exit anubis_mod_fini(void)
698 {
699 	crypto_unregister_alg(&anubis_alg);
700 }
701 
702 subsys_initcall(anubis_mod_init);
703 module_exit(anubis_mod_fini);
704 
705 MODULE_LICENSE("GPL");
706 MODULE_DESCRIPTION("Anubis Cryptographic Algorithm");
707 MODULE_ALIAS_CRYPTO("anubis");
708