[linux-block.git] / crypto / sha512_generic.c

// SPDX-License-Identifier: GPL-2.0-or-later
/* SHA-512 code by Jean-Luc Cooke <jlcooke@certainkey.com>
 *
 * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
 * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
 * Copyright (c) 2003 Kyle McMartin <kyle@debian.org>
 */
#include <crypto/internal/hash.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/crypto.h>
#include <linux/types.h>
#include <crypto/sha2.h>
#include <crypto/sha512_base.h>
#include <linux/percpu.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>

const u8 sha384_zero_message_hash[SHA384_DIGEST_SIZE] = {
	0x38, 0xb0, 0x60, 0xa7, 0x51, 0xac, 0x96, 0x38,
	0x4c, 0xd9, 0x32, 0x7e, 0xb1, 0xb1, 0xe3, 0x6a,
	0x21, 0xfd, 0xb7, 0x11, 0x14, 0xbe, 0x07, 0x43,
	0x4c, 0x0c, 0xc7, 0xbf, 0x63, 0xf6, 0xe1, 0xda,
	0x27, 0x4e, 0xde, 0xbf, 0xe7, 0x6f, 0x65, 0xfb,
	0xd5, 0x1a, 0xd2, 0xf1, 0x48, 0x98, 0xb9, 0x5b
};
EXPORT_SYMBOL_GPL(sha384_zero_message_hash);

const u8 sha512_zero_message_hash[SHA512_DIGEST_SIZE] = {
	0xcf, 0x83, 0xe1, 0x35, 0x7e, 0xef, 0xb8, 0xbd,
	0xf1, 0x54, 0x28, 0x50, 0xd6, 0x6d, 0x80, 0x07,
	0xd6, 0x20, 0xe4, 0x05, 0x0b, 0x57, 0x15, 0xdc,
	0x83, 0xf4, 0xa9, 0x21, 0xd3, 0x6c, 0xe9, 0xce,
	0x47, 0xd0, 0xd1, 0x3c, 0x5d, 0x85, 0xf2, 0xb0,
	0xff, 0x83, 0x18, 0xd2, 0x87, 0x7e, 0xec, 0x2f,
	0x63, 0xb9, 0x31, 0xbd, 0x47, 0x41, 0x7a, 0x81,
	0xa5, 0x38, 0x32, 0x7a, 0xf9, 0x27, 0xda, 0x3e
};
EXPORT_SYMBOL_GPL(sha512_zero_message_hash);

static inline u64 Ch(u64 x, u64 y, u64 z)
{
        return z ^ (x & (y ^ z));
}

static inline u64 Maj(u64 x, u64 y, u64 z)
{
        return (x & y) | (z & (x | y));
}

static const u64 sha512_K[80] = {
        0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL,
        0xe9b5dba58189dbbcULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
        0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 0xd807aa98a3030242ULL,
        0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
        0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL,
        0xc19bf174cf692694ULL, 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
        0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 0x2de92c6f592b0275ULL,
        0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
        0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL,
        0xbf597fc7beef0ee4ULL, 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
        0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 0x27b70a8546d22ffcULL,
        0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
        0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL,
        0x92722c851482353bULL, 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
        0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 0xd192e819d6ef5218ULL,
        0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
        0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL,
        0x34b0bcb5e19b48a8ULL, 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
        0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 0x748f82ee5defb2fcULL,
        0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
        0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL,
        0xc67178f2e372532bULL, 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
        0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 0x06f067aa72176fbaULL,
        0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
        0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL,
        0x431d67c49c100d4cULL, 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
        0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL,
};

#define e0(x)       (ror64(x,28) ^ ror64(x,34) ^ ror64(x,39))
#define e1(x)       (ror64(x,14) ^ ror64(x,18) ^ ror64(x,41))
#define s0(x)       (ror64(x, 1) ^ ror64(x, 8) ^ (x >> 7))
#define s1(x)       (ror64(x,19) ^ ror64(x,61) ^ (x >> 6))

static inline void LOAD_OP(int I, u64 *W, const u8 *input)
{
	W[I] = get_unaligned_be64((__u64 *)input + I);
}

static inline void BLEND_OP(int I, u64 *W)
{
	W[I & 15] += s1(W[(I-2) & 15]) + W[(I-7) & 15] + s0(W[(I-15) & 15]);
}

static void
sha512_transform(u64 *state, const u8 *input)
{
	u64 a, b, c, d, e, f, g, h, t1, t2;

	int i;
	u64 W[16];

	/* load the state into our registers */
	a=state[0];   b=state[1];   c=state[2];   d=state[3];
	e=state[4];   f=state[5];   g=state[6];   h=state[7];

	/* now iterate */
	for (i=0; i<80; i+=8) {
		if (!(i & 8)) {
			int j;

			if (i < 16) {
				/* load the input */
				for (j = 0; j < 16; j++)
					LOAD_OP(i + j, W, input);
			} else {
				for (j = 0; j < 16; j++) {
					BLEND_OP(i + j, W);
				}
			}
		}

		t1 = h + e1(e) + Ch(e,f,g) + sha512_K[i  ] + W[(i & 15)];
		t2 = e0(a) + Maj(a,b,c);    d+=t1;    h=t1+t2;
		t1 = g + e1(d) + Ch(d,e,f) + sha512_K[i+1] + W[(i & 15) + 1];
		t2 = e0(h) + Maj(h,a,b);    c+=t1;    g=t1+t2;
		t1 = f + e1(c) + Ch(c,d,e) + sha512_K[i+2] + W[(i & 15) + 2];
		t2 = e0(g) + Maj(g,h,a);    b+=t1;    f=t1+t2;
		t1 = e + e1(b) + Ch(b,c,d) + sha512_K[i+3] + W[(i & 15) + 3];
		t2 = e0(f) + Maj(f,g,h);    a+=t1;    e=t1+t2;
		t1 = d + e1(a) + Ch(a,b,c) + sha512_K[i+4] + W[(i & 15) + 4];
		t2 = e0(e) + Maj(e,f,g);    h+=t1;    d=t1+t2;
		t1 = c + e1(h) + Ch(h,a,b) + sha512_K[i+5] + W[(i & 15) + 5];
		t2 = e0(d) + Maj(d,e,f);    g+=t1;    c=t1+t2;
		t1 = b + e1(g) + Ch(g,h,a) + sha512_K[i+6] + W[(i & 15) + 6];
		t2 = e0(c) + Maj(c,d,e);    f+=t1;    b=t1+t2;
		t1 = a + e1(f) + Ch(f,g,h) + sha512_K[i+7] + W[(i & 15) + 7];
		t2 = e0(b) + Maj(b,c,d);    e+=t1;    a=t1+t2;
	}

	state[0] += a; state[1] += b; state[2] += c; state[3] += d;
	state[4] += e; state[5] += f; state[6] += g; state[7] += h;
}

static void sha512_generic_block_fn(struct sha512_state *sst, u8 const *src,
				    int blocks)
{
	while (blocks--) {
		sha512_transform(sst->state, src);
		src += SHA512_BLOCK_SIZE;
	}
}

int crypto_sha512_update(struct shash_desc *desc, const u8 *data,
			unsigned int len)
{
	return sha512_base_do_update(desc, data, len, sha512_generic_block_fn);
}
EXPORT_SYMBOL(crypto_sha512_update);

static int sha512_final(struct shash_desc *desc, u8 *hash)
{
	sha512_base_do_finalize(desc, sha512_generic_block_fn);
	return sha512_base_finish(desc, hash);
}

int crypto_sha512_finup(struct shash_desc *desc, const u8 *data,
			unsigned int len, u8 *hash)
{
	sha512_base_do_update(desc, data, len, sha512_generic_block_fn);
	return sha512_final(desc, hash);
}
EXPORT_SYMBOL(crypto_sha512_finup);

static struct shash_alg sha512_algs[2] = { {
	.digestsize	=	SHA512_DIGEST_SIZE,
	.init		=	sha512_base_init,
	.update		=	crypto_sha512_update,
	.final		=	sha512_final,
	.finup		=	crypto_sha512_finup,
	.descsize	=	sizeof(struct sha512_state),
	.base		=	{
		.cra_name	=	"sha512",
		.cra_driver_name =	"sha512-generic",
		.cra_priority	=	100,
		.cra_blocksize	=	SHA512_BLOCK_SIZE,
		.cra_module	=	THIS_MODULE,
	}
}, {
	.digestsize	=	SHA384_DIGEST_SIZE,
	.init		=	sha384_base_init,
	.update		=	crypto_sha512_update,
	.final		=	sha512_final,
	.finup		=	crypto_sha512_finup,
	.descsize	=	sizeof(struct sha512_state),
	.base		=	{
		.cra_name	=	"sha384",
		.cra_driver_name =	"sha384-generic",
		.cra_priority	=	100,
		.cra_blocksize	=	SHA384_BLOCK_SIZE,
		.cra_module	=	THIS_MODULE,
	}
} };

static int __init sha512_generic_mod_init(void)
{
	return crypto_register_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
}

static void __exit sha512_generic_mod_fini(void)
{
	crypto_unregister_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
}

subsys_initcall(sha512_generic_mod_init);
module_exit(sha512_generic_mod_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA-512 and SHA-384 Secure Hash Algorithms");

MODULE_ALIAS_CRYPTO("sha384");
MODULE_ALIAS_CRYPTO("sha384-generic");
MODULE_ALIAS_CRYPTO("sha512");
MODULE_ALIAS_CRYPTO("sha512-generic");
Commit	Line	Data
8d7c56d0	1	// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4 LT	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>
1da177e4	7	*/
bd9d20db	8	#include <crypto/internal/hash.h>
1da177e4 LT	9	#include <linux/kernel.h>
1da177e4 LT	10	#include <linux/module.h>
1da177e4 LT	11	#include <linux/mm.h>
	12	#include <linux/init.h>
	13	#include <linux/crypto.h>
06ace7a9	14	#include <linux/types.h>
a24d22b2	15	#include <crypto/sha2.h>
ca142584	16	#include <crypto/sha512_base.h>
f9e2bca6	17	#include <linux/percpu.h>
1da177e4	18	#include <asm/byteorder.h>
be34c4ef	19	#include <asm/unaligned.h>
1da177e4	20
26f7120b AT	21	const 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	};
	29	EXPORT_SYMBOL_GPL(sha384_zero_message_hash);
	30
30c217ef AT	31	const 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	};
	41	EXPORT_SYMBOL_GPL(sha512_zero_message_hash);
	42
1da177e4 LT	43	static inline u64 Ch(u64 x, u64 y, u64 z)
	44	{
	45	return z ^ (x & (y ^ z));
	46	}
	47
	48	static inline u64 Maj(u64 x, u64 y, u64 z)
	49	{
	50	return (x & y) \| (z & (x \| y));
	51	}
	52
1da177e4 LT	53	static 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
f2ea0f5f AD	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))
1da177e4	87
1da177e4 LT	88	static inline void LOAD_OP(int I, u64 W, const u8 input)
1da177e4 LT	89	{
be34c4ef	90	W[I] = get_unaligned_be64((__u64 *)input + I);
1da177e4 LT	91	}
	92
	93	static inline void BLEND_OP(int I, u64 *W)
	94	{
58d7d18b	95	W[I & 15] += s1(W[(I-2) & 15]) + W[(I-7) & 15] + s0(W[(I-15) & 15]);
1da177e4 LT	96	}
	97
	98	static void
f9e2bca6	99	sha512_transform(u64 state, const u8 input)
1da177e4 LT	100	{
	101	u64 a, b, c, d, e, f, g, h, t1, t2;
	102
	103	int i;
51fc6dc8	104	u64 W[16];
1da177e4	105
1da177e4	106	/* load the state into our registers */
78f8b3a2 JG	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
3a92d687 HX	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;
1da177e4	142	}
78f8b3a2 JG	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;
1da177e4 LT	146	}
1da177e4 LT	147
ca142584 AB	148	static void sha512_generic_block_fn(struct sha512_state sst, u8 const src,
ca142584 AB	149	int blocks)
1da177e4	150	{
ca142584 AB	151	while (blocks--) {
	152	sha512_transform(sst->state, src);
	153	src += SHA512_BLOCK_SIZE;
	154	}
1da177e4 LT	155	}
1da177e4 LT	156
bf70fa9d TC	157	int crypto_sha512_update(struct shash_desc desc, const u8 data,
bf70fa9d TC	158	unsigned int len)
1da177e4	159	{
ca142584	160	return sha512_base_do_update(desc, data, len, sha512_generic_block_fn);
1da177e4	161	}
bf70fa9d	162	EXPORT_SYMBOL(crypto_sha512_update);
1da177e4	163
ca142584	164	static int sha512_final(struct shash_desc desc, u8 hash)
1da177e4	165	{
ca142584 AB	166	sha512_base_do_finalize(desc, sha512_generic_block_fn);
ca142584 AB	167	return sha512_base_finish(desc, hash);
1da177e4 LT	168	}
1da177e4 LT	169
ca142584 AB	170	int crypto_sha512_finup(struct shash_desc desc, const u8 data,
ca142584 AB	171	unsigned int len, u8 *hash)
1da177e4	172	{
ca142584 AB	173	sha512_base_do_update(desc, data, len, sha512_generic_block_fn);
ca142584 AB	174	return sha512_final(desc, hash);
1da177e4	175	}
ca142584	176	EXPORT_SYMBOL(crypto_sha512_finup);
1da177e4	177
648b2a10	178	static struct shash_alg sha512_algs[2] = { {
bd9d20db	179	.digestsize = SHA512_DIGEST_SIZE,
ca142584	180	.init = sha512_base_init,
bf70fa9d	181	.update = crypto_sha512_update,
bd9d20db	182	.final = sha512_final,
ca142584	183	.finup = crypto_sha512_finup,
1f38ad83	184	.descsize = sizeof(struct sha512_state),
bd9d20db AKR	185	.base = {
bd9d20db AKR	186	.cra_name = "sha512",
d3295814	187	.cra_driver_name = "sha512-generic",
e4789016	188	.cra_priority = 100,
bd9d20db AKR	189	.cra_blocksize = SHA512_BLOCK_SIZE,
	190	.cra_module = THIS_MODULE,
	191	}
648b2a10	192	}, {
bd9d20db	193	.digestsize = SHA384_DIGEST_SIZE,
ca142584	194	.init = sha384_base_init,
bf70fa9d	195	.update = crypto_sha512_update,
ca142584 AB	196	.final = sha512_final,
ca142584 AB	197	.finup = crypto_sha512_finup,
1f38ad83	198	.descsize = sizeof(struct sha512_state),
bd9d20db AKR	199	.base = {
bd9d20db AKR	200	.cra_name = "sha384",
d3295814	201	.cra_driver_name = "sha384-generic",
e4789016	202	.cra_priority = 100,
bd9d20db AKR	203	.cra_blocksize = SHA384_BLOCK_SIZE,
	204	.cra_module = THIS_MODULE,
	205	}
648b2a10	206	} };
1da177e4	207
3af5b90b	208	static int __init sha512_generic_mod_init(void)
1da177e4	209	{
648b2a10	210	return crypto_register_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
1da177e4 LT	211	}
1da177e4 LT	212
3af5b90b	213	static void __exit sha512_generic_mod_fini(void)
1da177e4	214	{
648b2a10	215	crypto_unregister_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
1da177e4 LT	216	}
1da177e4 LT	217
c4741b23	218	subsys_initcall(sha512_generic_mod_init);
3af5b90b	219	module_exit(sha512_generic_mod_fini);
1da177e4 LT	220
	221	MODULE_LICENSE("GPL");
	222	MODULE_DESCRIPTION("SHA-512 and SHA-384 Secure Hash Algorithms");
78f8b3a2	223
5d26a105	224	MODULE_ALIAS_CRYPTO("sha384");
3e14dcf7	225	MODULE_ALIAS_CRYPTO("sha384-generic");
5d26a105	226	MODULE_ALIAS_CRYPTO("sha512");
3e14dcf7	227	MODULE_ALIAS_CRYPTO("sha512-generic");