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1// SPDX-License-Identifier: GPL-2.0-or-later
2/* SHA-512 code by Jean-Luc Cooke <jlcooke@certainkey.com>
3 *
4 * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
5 * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
6 * Copyright (c) 2003 Kyle McMartin <kyle@debian.org>
7 */
8#include <crypto/internal/hash.h>
9#include <linux/kernel.h>
10#include <linux/module.h>
11#include <linux/mm.h>
12#include <linux/init.h>
13#include <linux/crypto.h>
14#include <linux/types.h>
15#include <crypto/sha.h>
16#include <crypto/sha512_base.h>
17#include <linux/percpu.h>
18#include <asm/byteorder.h>
19#include <asm/unaligned.h>
20
21const u8 sha384_zero_message_hash[SHA384_DIGEST_SIZE] = {
22 0x38, 0xb0, 0x60, 0xa7, 0x51, 0xac, 0x96, 0x38,
23 0x4c, 0xd9, 0x32, 0x7e, 0xb1, 0xb1, 0xe3, 0x6a,
24 0x21, 0xfd, 0xb7, 0x11, 0x14, 0xbe, 0x07, 0x43,
25 0x4c, 0x0c, 0xc7, 0xbf, 0x63, 0xf6, 0xe1, 0xda,
26 0x27, 0x4e, 0xde, 0xbf, 0xe7, 0x6f, 0x65, 0xfb,
27 0xd5, 0x1a, 0xd2, 0xf1, 0x48, 0x98, 0xb9, 0x5b
28};
29EXPORT_SYMBOL_GPL(sha384_zero_message_hash);
30
31const u8 sha512_zero_message_hash[SHA512_DIGEST_SIZE] = {
32 0xcf, 0x83, 0xe1, 0x35, 0x7e, 0xef, 0xb8, 0xbd,
33 0xf1, 0x54, 0x28, 0x50, 0xd6, 0x6d, 0x80, 0x07,
34 0xd6, 0x20, 0xe4, 0x05, 0x0b, 0x57, 0x15, 0xdc,
35 0x83, 0xf4, 0xa9, 0x21, 0xd3, 0x6c, 0xe9, 0xce,
36 0x47, 0xd0, 0xd1, 0x3c, 0x5d, 0x85, 0xf2, 0xb0,
37 0xff, 0x83, 0x18, 0xd2, 0x87, 0x7e, 0xec, 0x2f,
38 0x63, 0xb9, 0x31, 0xbd, 0x47, 0x41, 0x7a, 0x81,
39 0xa5, 0x38, 0x32, 0x7a, 0xf9, 0x27, 0xda, 0x3e
40};
41EXPORT_SYMBOL_GPL(sha512_zero_message_hash);
42
43static inline u64 Ch(u64 x, u64 y, u64 z)
44{
45 return z ^ (x & (y ^ z));
46}
47
48static inline u64 Maj(u64 x, u64 y, u64 z)
49{
50 return (x & y) | (z & (x | y));
51}
52
53static const u64 sha512_K[80] = {
54 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL,
55 0xe9b5dba58189dbbcULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
56 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 0xd807aa98a3030242ULL,
57 0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
58 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL,
59 0xc19bf174cf692694ULL, 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
60 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 0x2de92c6f592b0275ULL,
61 0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
62 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL,
63 0xbf597fc7beef0ee4ULL, 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
64 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 0x27b70a8546d22ffcULL,
65 0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
66 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL,
67 0x92722c851482353bULL, 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
68 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 0xd192e819d6ef5218ULL,
69 0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
70 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL,
71 0x34b0bcb5e19b48a8ULL, 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
72 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 0x748f82ee5defb2fcULL,
73 0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
74 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL,
75 0xc67178f2e372532bULL, 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
76 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 0x06f067aa72176fbaULL,
77 0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
78 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL,
79 0x431d67c49c100d4cULL, 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
80 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL,
81};
82
83#define e0(x) (ror64(x,28) ^ ror64(x,34) ^ ror64(x,39))
84#define e1(x) (ror64(x,14) ^ ror64(x,18) ^ ror64(x,41))
85#define s0(x) (ror64(x, 1) ^ ror64(x, 8) ^ (x >> 7))
86#define s1(x) (ror64(x,19) ^ ror64(x,61) ^ (x >> 6))
87
88static inline void LOAD_OP(int I, u64 *W, const u8 *input)
89{
90 W[I] = get_unaligned_be64((__u64 *)input + I);
91}
92
93static inline void BLEND_OP(int I, u64 *W)
94{
95 W[I & 15] += s1(W[(I-2) & 15]) + W[(I-7) & 15] + s0(W[(I-15) & 15]);
96}
97
98static void
99sha512_transform(u64 *state, const u8 *input)
100{
101 u64 a, b, c, d, e, f, g, h, t1, t2;
102
103 int i;
104 u64 W[16];
105
106 /* load the state into our registers */
107 a=state[0]; b=state[1]; c=state[2]; d=state[3];
108 e=state[4]; f=state[5]; g=state[6]; h=state[7];
109
110 /* now iterate */
111 for (i=0; i<80; i+=8) {
112 if (!(i & 8)) {
113 int j;
114
115 if (i < 16) {
116 /* load the input */
117 for (j = 0; j < 16; j++)
118 LOAD_OP(i + j, W, input);
119 } else {
120 for (j = 0; j < 16; j++) {
121 BLEND_OP(i + j, W);
122 }
123 }
124 }
125
126 t1 = h + e1(e) + Ch(e,f,g) + sha512_K[i ] + W[(i & 15)];
127 t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
128 t1 = g + e1(d) + Ch(d,e,f) + sha512_K[i+1] + W[(i & 15) + 1];
129 t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
130 t1 = f + e1(c) + Ch(c,d,e) + sha512_K[i+2] + W[(i & 15) + 2];
131 t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
132 t1 = e + e1(b) + Ch(b,c,d) + sha512_K[i+3] + W[(i & 15) + 3];
133 t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
134 t1 = d + e1(a) + Ch(a,b,c) + sha512_K[i+4] + W[(i & 15) + 4];
135 t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
136 t1 = c + e1(h) + Ch(h,a,b) + sha512_K[i+5] + W[(i & 15) + 5];
137 t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
138 t1 = b + e1(g) + Ch(g,h,a) + sha512_K[i+6] + W[(i & 15) + 6];
139 t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
140 t1 = a + e1(f) + Ch(f,g,h) + sha512_K[i+7] + W[(i & 15) + 7];
141 t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
142 }
143
144 state[0] += a; state[1] += b; state[2] += c; state[3] += d;
145 state[4] += e; state[5] += f; state[6] += g; state[7] += h;
146
147 /* erase our data */
148 a = b = c = d = e = f = g = h = t1 = t2 = 0;
149}
150
151static void sha512_generic_block_fn(struct sha512_state *sst, u8 const *src,
152 int blocks)
153{
154 while (blocks--) {
155 sha512_transform(sst->state, src);
156 src += SHA512_BLOCK_SIZE;
157 }
158}
159
160int crypto_sha512_update(struct shash_desc *desc, const u8 *data,
161 unsigned int len)
162{
163 return sha512_base_do_update(desc, data, len, sha512_generic_block_fn);
164}
165EXPORT_SYMBOL(crypto_sha512_update);
166
167static int sha512_final(struct shash_desc *desc, u8 *hash)
168{
169 sha512_base_do_finalize(desc, sha512_generic_block_fn);
170 return sha512_base_finish(desc, hash);
171}
172
173int crypto_sha512_finup(struct shash_desc *desc, const u8 *data,
174 unsigned int len, u8 *hash)
175{
176 sha512_base_do_update(desc, data, len, sha512_generic_block_fn);
177 return sha512_final(desc, hash);
178}
179EXPORT_SYMBOL(crypto_sha512_finup);
180
181static struct shash_alg sha512_algs[2] = { {
182 .digestsize = SHA512_DIGEST_SIZE,
183 .init = sha512_base_init,
184 .update = crypto_sha512_update,
185 .final = sha512_final,
186 .finup = crypto_sha512_finup,
187 .descsize = sizeof(struct sha512_state),
188 .base = {
189 .cra_name = "sha512",
190 .cra_driver_name = "sha512-generic",
191 .cra_priority = 100,
192 .cra_blocksize = SHA512_BLOCK_SIZE,
193 .cra_module = THIS_MODULE,
194 }
195}, {
196 .digestsize = SHA384_DIGEST_SIZE,
197 .init = sha384_base_init,
198 .update = crypto_sha512_update,
199 .final = sha512_final,
200 .finup = crypto_sha512_finup,
201 .descsize = sizeof(struct sha512_state),
202 .base = {
203 .cra_name = "sha384",
204 .cra_driver_name = "sha384-generic",
205 .cra_priority = 100,
206 .cra_blocksize = SHA384_BLOCK_SIZE,
207 .cra_module = THIS_MODULE,
208 }
209} };
210
211static int __init sha512_generic_mod_init(void)
212{
213 return crypto_register_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
214}
215
216static void __exit sha512_generic_mod_fini(void)
217{
218 crypto_unregister_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
219}
220
221subsys_initcall(sha512_generic_mod_init);
222module_exit(sha512_generic_mod_fini);
223
224MODULE_LICENSE("GPL");
225MODULE_DESCRIPTION("SHA-512 and SHA-384 Secure Hash Algorithms");
226
227MODULE_ALIAS_CRYPTO("sha384");
228MODULE_ALIAS_CRYPTO("sha384-generic");
229MODULE_ALIAS_CRYPTO("sha512");
230MODULE_ALIAS_CRYPTO("sha512-generic");
1/* SHA-512 code by Jean-Luc Cooke <jlcooke@certainkey.com>
2 *
3 * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
4 * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
5 * Copyright (c) 2003 Kyle McMartin <kyle@debian.org>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
10 * later version.
11 *
12 */
13#include <crypto/internal/hash.h>
14#include <linux/kernel.h>
15#include <linux/module.h>
16#include <linux/mm.h>
17#include <linux/init.h>
18#include <linux/crypto.h>
19#include <linux/types.h>
20#include <crypto/sha.h>
21#include <linux/percpu.h>
22#include <asm/byteorder.h>
23
24static inline u64 Ch(u64 x, u64 y, u64 z)
25{
26 return z ^ (x & (y ^ z));
27}
28
29static inline u64 Maj(u64 x, u64 y, u64 z)
30{
31 return (x & y) | (z & (x | y));
32}
33
34static const u64 sha512_K[80] = {
35 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL,
36 0xe9b5dba58189dbbcULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
37 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 0xd807aa98a3030242ULL,
38 0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
39 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL,
40 0xc19bf174cf692694ULL, 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
41 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 0x2de92c6f592b0275ULL,
42 0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
43 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL,
44 0xbf597fc7beef0ee4ULL, 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
45 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 0x27b70a8546d22ffcULL,
46 0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
47 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL,
48 0x92722c851482353bULL, 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
49 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 0xd192e819d6ef5218ULL,
50 0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
51 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL,
52 0x34b0bcb5e19b48a8ULL, 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
53 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 0x748f82ee5defb2fcULL,
54 0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
55 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL,
56 0xc67178f2e372532bULL, 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
57 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 0x06f067aa72176fbaULL,
58 0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
59 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL,
60 0x431d67c49c100d4cULL, 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
61 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL,
62};
63
64#define e0(x) (ror64(x,28) ^ ror64(x,34) ^ ror64(x,39))
65#define e1(x) (ror64(x,14) ^ ror64(x,18) ^ ror64(x,41))
66#define s0(x) (ror64(x, 1) ^ ror64(x, 8) ^ (x >> 7))
67#define s1(x) (ror64(x,19) ^ ror64(x,61) ^ (x >> 6))
68
69static inline void LOAD_OP(int I, u64 *W, const u8 *input)
70{
71 W[I] = __be64_to_cpu( ((__be64*)(input))[I] );
72}
73
74static inline void BLEND_OP(int I, u64 *W)
75{
76 W[I & 15] += s1(W[(I-2) & 15]) + W[(I-7) & 15] + s0(W[(I-15) & 15]);
77}
78
79static void
80sha512_transform(u64 *state, const u8 *input)
81{
82 u64 a, b, c, d, e, f, g, h, t1, t2;
83
84 int i;
85 u64 W[16];
86
87 /* load the state into our registers */
88 a=state[0]; b=state[1]; c=state[2]; d=state[3];
89 e=state[4]; f=state[5]; g=state[6]; h=state[7];
90
91 /* now iterate */
92 for (i=0; i<80; i+=8) {
93 if (!(i & 8)) {
94 int j;
95
96 if (i < 16) {
97 /* load the input */
98 for (j = 0; j < 16; j++)
99 LOAD_OP(i + j, W, input);
100 } else {
101 for (j = 0; j < 16; j++) {
102 BLEND_OP(i + j, W);
103 }
104 }
105 }
106
107 t1 = h + e1(e) + Ch(e,f,g) + sha512_K[i ] + W[(i & 15)];
108 t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
109 t1 = g + e1(d) + Ch(d,e,f) + sha512_K[i+1] + W[(i & 15) + 1];
110 t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
111 t1 = f + e1(c) + Ch(c,d,e) + sha512_K[i+2] + W[(i & 15) + 2];
112 t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
113 t1 = e + e1(b) + Ch(b,c,d) + sha512_K[i+3] + W[(i & 15) + 3];
114 t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
115 t1 = d + e1(a) + Ch(a,b,c) + sha512_K[i+4] + W[(i & 15) + 4];
116 t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
117 t1 = c + e1(h) + Ch(h,a,b) + sha512_K[i+5] + W[(i & 15) + 5];
118 t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
119 t1 = b + e1(g) + Ch(g,h,a) + sha512_K[i+6] + W[(i & 15) + 6];
120 t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
121 t1 = a + e1(f) + Ch(f,g,h) + sha512_K[i+7] + W[(i & 15) + 7];
122 t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
123 }
124
125 state[0] += a; state[1] += b; state[2] += c; state[3] += d;
126 state[4] += e; state[5] += f; state[6] += g; state[7] += h;
127
128 /* erase our data */
129 a = b = c = d = e = f = g = h = t1 = t2 = 0;
130}
131
132static int
133sha512_init(struct shash_desc *desc)
134{
135 struct sha512_state *sctx = shash_desc_ctx(desc);
136 sctx->state[0] = SHA512_H0;
137 sctx->state[1] = SHA512_H1;
138 sctx->state[2] = SHA512_H2;
139 sctx->state[3] = SHA512_H3;
140 sctx->state[4] = SHA512_H4;
141 sctx->state[5] = SHA512_H5;
142 sctx->state[6] = SHA512_H6;
143 sctx->state[7] = SHA512_H7;
144 sctx->count[0] = sctx->count[1] = 0;
145
146 return 0;
147}
148
149static int
150sha384_init(struct shash_desc *desc)
151{
152 struct sha512_state *sctx = shash_desc_ctx(desc);
153 sctx->state[0] = SHA384_H0;
154 sctx->state[1] = SHA384_H1;
155 sctx->state[2] = SHA384_H2;
156 sctx->state[3] = SHA384_H3;
157 sctx->state[4] = SHA384_H4;
158 sctx->state[5] = SHA384_H5;
159 sctx->state[6] = SHA384_H6;
160 sctx->state[7] = SHA384_H7;
161 sctx->count[0] = sctx->count[1] = 0;
162
163 return 0;
164}
165
166int crypto_sha512_update(struct shash_desc *desc, const u8 *data,
167 unsigned int len)
168{
169 struct sha512_state *sctx = shash_desc_ctx(desc);
170
171 unsigned int i, index, part_len;
172
173 /* Compute number of bytes mod 128 */
174 index = sctx->count[0] & 0x7f;
175
176 /* Update number of bytes */
177 if ((sctx->count[0] += len) < len)
178 sctx->count[1]++;
179
180 part_len = 128 - index;
181
182 /* Transform as many times as possible. */
183 if (len >= part_len) {
184 memcpy(&sctx->buf[index], data, part_len);
185 sha512_transform(sctx->state, sctx->buf);
186
187 for (i = part_len; i + 127 < len; i+=128)
188 sha512_transform(sctx->state, &data[i]);
189
190 index = 0;
191 } else {
192 i = 0;
193 }
194
195 /* Buffer remaining input */
196 memcpy(&sctx->buf[index], &data[i], len - i);
197
198 return 0;
199}
200EXPORT_SYMBOL(crypto_sha512_update);
201
202static int
203sha512_final(struct shash_desc *desc, u8 *hash)
204{
205 struct sha512_state *sctx = shash_desc_ctx(desc);
206 static u8 padding[128] = { 0x80, };
207 __be64 *dst = (__be64 *)hash;
208 __be64 bits[2];
209 unsigned int index, pad_len;
210 int i;
211
212 /* Save number of bits */
213 bits[1] = cpu_to_be64(sctx->count[0] << 3);
214 bits[0] = cpu_to_be64(sctx->count[1] << 3 | sctx->count[0] >> 61);
215
216 /* Pad out to 112 mod 128. */
217 index = sctx->count[0] & 0x7f;
218 pad_len = (index < 112) ? (112 - index) : ((128+112) - index);
219 crypto_sha512_update(desc, padding, pad_len);
220
221 /* Append length (before padding) */
222 crypto_sha512_update(desc, (const u8 *)bits, sizeof(bits));
223
224 /* Store state in digest */
225 for (i = 0; i < 8; i++)
226 dst[i] = cpu_to_be64(sctx->state[i]);
227
228 /* Zeroize sensitive information. */
229 memset(sctx, 0, sizeof(struct sha512_state));
230
231 return 0;
232}
233
234static int sha384_final(struct shash_desc *desc, u8 *hash)
235{
236 u8 D[64];
237
238 sha512_final(desc, D);
239
240 memcpy(hash, D, 48);
241 memset(D, 0, 64);
242
243 return 0;
244}
245
246static struct shash_alg sha512_algs[2] = { {
247 .digestsize = SHA512_DIGEST_SIZE,
248 .init = sha512_init,
249 .update = crypto_sha512_update,
250 .final = sha512_final,
251 .descsize = sizeof(struct sha512_state),
252 .base = {
253 .cra_name = "sha512",
254 .cra_driver_name = "sha512-generic",
255 .cra_flags = CRYPTO_ALG_TYPE_SHASH,
256 .cra_blocksize = SHA512_BLOCK_SIZE,
257 .cra_module = THIS_MODULE,
258 }
259}, {
260 .digestsize = SHA384_DIGEST_SIZE,
261 .init = sha384_init,
262 .update = crypto_sha512_update,
263 .final = sha384_final,
264 .descsize = sizeof(struct sha512_state),
265 .base = {
266 .cra_name = "sha384",
267 .cra_driver_name = "sha384-generic",
268 .cra_flags = CRYPTO_ALG_TYPE_SHASH,
269 .cra_blocksize = SHA384_BLOCK_SIZE,
270 .cra_module = THIS_MODULE,
271 }
272} };
273
274static int __init sha512_generic_mod_init(void)
275{
276 return crypto_register_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
277}
278
279static void __exit sha512_generic_mod_fini(void)
280{
281 crypto_unregister_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
282}
283
284module_init(sha512_generic_mod_init);
285module_exit(sha512_generic_mod_fini);
286
287MODULE_LICENSE("GPL");
288MODULE_DESCRIPTION("SHA-512 and SHA-384 Secure Hash Algorithms");
289
290MODULE_ALIAS("sha384");
291MODULE_ALIAS("sha512");