[linux.git] / crypto / sha512_generic.c

/* SHA-512 code by Jean-Luc Cooke <[email protected]>
 *
 * Copyright (c) Jean-Luc Cooke <[email protected]>
 * Copyright (c) Andrew McDonald <[email protected]>
 * Copyright (c) 2003 Kyle McMartin <[email protected]>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 */
#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/sha.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;

	/* erase our data */
	a = b = c = d = e = f = g = h = t1 = t2 = 0;
}

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));
}

module_init(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
1da177e4 LT	1	/* SHA-512 code by Jean-Luc Cooke <[email protected]>
	2	*
	3	* Copyright (c) Jean-Luc Cooke <[email protected]>
	4	* Copyright (c) Andrew McDonald <[email protected]>
	5	* Copyright (c) 2003 Kyle McMartin <[email protected]>
	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	*/
bd9d20db	13	#include <crypto/internal/hash.h>
1da177e4 LT	14	#include <linux/kernel.h>
1da177e4 LT	15	#include <linux/module.h>
1da177e4 LT	16	#include <linux/mm.h>
	17	#include <linux/init.h>
	18	#include <linux/crypto.h>
06ace7a9	19	#include <linux/types.h>
5265eeb2	20	#include <crypto/sha.h>
ca142584	21	#include <crypto/sha512_base.h>
f9e2bca6	22	#include <linux/percpu.h>
1da177e4	23	#include <asm/byteorder.h>
be34c4ef	24	#include <asm/unaligned.h>
1da177e4	25
26f7120b AT	26	const u8 sha384_zero_message_hash[SHA384_DIGEST_SIZE] = {
	27	0x38, 0xb0, 0x60, 0xa7, 0x51, 0xac, 0x96, 0x38,
	28	0x4c, 0xd9, 0x32, 0x7e, 0xb1, 0xb1, 0xe3, 0x6a,
	29	0x21, 0xfd, 0xb7, 0x11, 0x14, 0xbe, 0x07, 0x43,
	30	0x4c, 0x0c, 0xc7, 0xbf, 0x63, 0xf6, 0xe1, 0xda,
	31	0x27, 0x4e, 0xde, 0xbf, 0xe7, 0x6f, 0x65, 0xfb,
	32	0xd5, 0x1a, 0xd2, 0xf1, 0x48, 0x98, 0xb9, 0x5b
	33	};
	34	EXPORT_SYMBOL_GPL(sha384_zero_message_hash);
	35
30c217ef AT	36	const u8 sha512_zero_message_hash[SHA512_DIGEST_SIZE] = {
	37	0xcf, 0x83, 0xe1, 0x35, 0x7e, 0xef, 0xb8, 0xbd,
	38	0xf1, 0x54, 0x28, 0x50, 0xd6, 0x6d, 0x80, 0x07,
	39	0xd6, 0x20, 0xe4, 0x05, 0x0b, 0x57, 0x15, 0xdc,
	40	0x83, 0xf4, 0xa9, 0x21, 0xd3, 0x6c, 0xe9, 0xce,
	41	0x47, 0xd0, 0xd1, 0x3c, 0x5d, 0x85, 0xf2, 0xb0,
	42	0xff, 0x83, 0x18, 0xd2, 0x87, 0x7e, 0xec, 0x2f,
	43	0x63, 0xb9, 0x31, 0xbd, 0x47, 0x41, 0x7a, 0x81,
	44	0xa5, 0x38, 0x32, 0x7a, 0xf9, 0x27, 0xda, 0x3e
	45	};
	46	EXPORT_SYMBOL_GPL(sha512_zero_message_hash);
	47
1da177e4 LT	48	static inline u64 Ch(u64 x, u64 y, u64 z)
	49	{
	50	return z ^ (x & (y ^ z));
	51	}
	52
	53	static inline u64 Maj(u64 x, u64 y, u64 z)
	54	{
	55	return (x & y) \| (z & (x \| y));
	56	}
	57
1da177e4 LT	58	static const u64 sha512_K[80] = {
	59	0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL,
	60	0xe9b5dba58189dbbcULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
	61	0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 0xd807aa98a3030242ULL,
	62	0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
	63	0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL,
	64	0xc19bf174cf692694ULL, 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
	65	0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 0x2de92c6f592b0275ULL,
	66	0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
	67	0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL,
	68	0xbf597fc7beef0ee4ULL, 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
	69	0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 0x27b70a8546d22ffcULL,
	70	0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
	71	0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL,
	72	0x92722c851482353bULL, 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
	73	0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 0xd192e819d6ef5218ULL,
	74	0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
	75	0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL,
	76	0x34b0bcb5e19b48a8ULL, 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
	77	0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 0x748f82ee5defb2fcULL,
	78	0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
	79	0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL,
	80	0xc67178f2e372532bULL, 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
	81	0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 0x06f067aa72176fbaULL,
	82	0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
	83	0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL,
	84	0x431d67c49c100d4cULL, 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
	85	0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL,
	86	};
	87
f2ea0f5f AD	88	#define e0(x) (ror64(x,28) ^ ror64(x,34) ^ ror64(x,39))
	89	#define e1(x) (ror64(x,14) ^ ror64(x,18) ^ ror64(x,41))
	90	#define s0(x) (ror64(x, 1) ^ ror64(x, 8) ^ (x >> 7))
	91	#define s1(x) (ror64(x,19) ^ ror64(x,61) ^ (x >> 6))
1da177e4	92
1da177e4 LT	93	static inline void LOAD_OP(int I, u64 W, const u8 input)
1da177e4 LT	94	{
be34c4ef	95	W[I] = get_unaligned_be64((__u64 *)input + I);
1da177e4 LT	96	}
	97
	98	static inline void BLEND_OP(int I, u64 *W)
	99	{
58d7d18b	100	W[I & 15] += s1(W[(I-2) & 15]) + W[(I-7) & 15] + s0(W[(I-15) & 15]);
1da177e4 LT	101	}
	102
	103	static void
f9e2bca6	104	sha512_transform(u64 state, const u8 input)
1da177e4 LT	105	{
	106	u64 a, b, c, d, e, f, g, h, t1, t2;
	107
	108	int i;
51fc6dc8	109	u64 W[16];
1da177e4	110
1da177e4	111	/* load the state into our registers */
78f8b3a2 JG	112	a=state[0]; b=state[1]; c=state[2]; d=state[3];
	113	e=state[4]; f=state[5]; g=state[6]; h=state[7];
	114
3a92d687 HX	115	/* now iterate */
	116	for (i=0; i<80; i+=8) {
	117	if (!(i & 8)) {
	118	int j;
	119
	120	if (i < 16) {
	121	/* load the input */
	122	for (j = 0; j < 16; j++)
	123	LOAD_OP(i + j, W, input);
	124	} else {
	125	for (j = 0; j < 16; j++) {
	126	BLEND_OP(i + j, W);
	127	}
	128	}
	129	}
	130
	131	t1 = h + e1(e) + Ch(e,f,g) + sha512_K[i ] + W[(i & 15)];
	132	t2 = e0(a) + Maj(a,b,c); d+=t1; h=t1+t2;
	133	t1 = g + e1(d) + Ch(d,e,f) + sha512_K[i+1] + W[(i & 15) + 1];
	134	t2 = e0(h) + Maj(h,a,b); c+=t1; g=t1+t2;
	135	t1 = f + e1(c) + Ch(c,d,e) + sha512_K[i+2] + W[(i & 15) + 2];
	136	t2 = e0(g) + Maj(g,h,a); b+=t1; f=t1+t2;
	137	t1 = e + e1(b) + Ch(b,c,d) + sha512_K[i+3] + W[(i & 15) + 3];
	138	t2 = e0(f) + Maj(f,g,h); a+=t1; e=t1+t2;
	139	t1 = d + e1(a) + Ch(a,b,c) + sha512_K[i+4] + W[(i & 15) + 4];
	140	t2 = e0(e) + Maj(e,f,g); h+=t1; d=t1+t2;
	141	t1 = c + e1(h) + Ch(h,a,b) + sha512_K[i+5] + W[(i & 15) + 5];
	142	t2 = e0(d) + Maj(d,e,f); g+=t1; c=t1+t2;
	143	t1 = b + e1(g) + Ch(g,h,a) + sha512_K[i+6] + W[(i & 15) + 6];
	144	t2 = e0(c) + Maj(c,d,e); f+=t1; b=t1+t2;
	145	t1 = a + e1(f) + Ch(f,g,h) + sha512_K[i+7] + W[(i & 15) + 7];
	146	t2 = e0(b) + Maj(b,c,d); e+=t1; a=t1+t2;
1da177e4	147	}
78f8b3a2 JG	148
	149	state[0] += a; state[1] += b; state[2] += c; state[3] += d;
	150	state[4] += e; state[5] += f; state[6] += g; state[7] += h;
1da177e4 LT	151
	152	/* erase our data */
	153	a = b = c = d = e = f = g = h = t1 = t2 = 0;
	154	}
	155
ca142584 AB	156	static void sha512_generic_block_fn(struct sha512_state sst, u8 const src,
ca142584 AB	157	int blocks)
1da177e4	158	{
ca142584 AB	159	while (blocks--) {
	160	sha512_transform(sst->state, src);
	161	src += SHA512_BLOCK_SIZE;
	162	}
1da177e4 LT	163	}
1da177e4 LT	164
bf70fa9d TC	165	int crypto_sha512_update(struct shash_desc desc, const u8 data,
bf70fa9d TC	166	unsigned int len)
1da177e4	167	{
ca142584	168	return sha512_base_do_update(desc, data, len, sha512_generic_block_fn);
1da177e4	169	}
bf70fa9d	170	EXPORT_SYMBOL(crypto_sha512_update);
1da177e4	171
ca142584	172	static int sha512_final(struct shash_desc desc, u8 hash)
1da177e4	173	{
ca142584 AB	174	sha512_base_do_finalize(desc, sha512_generic_block_fn);
ca142584 AB	175	return sha512_base_finish(desc, hash);
1da177e4 LT	176	}
1da177e4 LT	177
ca142584 AB	178	int crypto_sha512_finup(struct shash_desc desc, const u8 data,
ca142584 AB	179	unsigned int len, u8 *hash)
1da177e4	180	{
ca142584 AB	181	sha512_base_do_update(desc, data, len, sha512_generic_block_fn);
ca142584 AB	182	return sha512_final(desc, hash);
1da177e4	183	}
ca142584	184	EXPORT_SYMBOL(crypto_sha512_finup);
1da177e4	185
648b2a10	186	static struct shash_alg sha512_algs[2] = { {
bd9d20db	187	.digestsize = SHA512_DIGEST_SIZE,
ca142584	188	.init = sha512_base_init,
bf70fa9d	189	.update = crypto_sha512_update,
bd9d20db	190	.final = sha512_final,
ca142584	191	.finup = crypto_sha512_finup,
1f38ad83	192	.descsize = sizeof(struct sha512_state),
bd9d20db AKR	193	.base = {
bd9d20db AKR	194	.cra_name = "sha512",
d3295814	195	.cra_driver_name = "sha512-generic",
e4789016	196	.cra_priority = 100,
bd9d20db AKR	197	.cra_blocksize = SHA512_BLOCK_SIZE,
	198	.cra_module = THIS_MODULE,
	199	}
648b2a10	200	}, {
bd9d20db	201	.digestsize = SHA384_DIGEST_SIZE,
ca142584	202	.init = sha384_base_init,
bf70fa9d	203	.update = crypto_sha512_update,
ca142584 AB	204	.final = sha512_final,
ca142584 AB	205	.finup = crypto_sha512_finup,
1f38ad83	206	.descsize = sizeof(struct sha512_state),
bd9d20db AKR	207	.base = {
bd9d20db AKR	208	.cra_name = "sha384",
d3295814	209	.cra_driver_name = "sha384-generic",
e4789016	210	.cra_priority = 100,
bd9d20db AKR	211	.cra_blocksize = SHA384_BLOCK_SIZE,
	212	.cra_module = THIS_MODULE,
	213	}
648b2a10	214	} };
1da177e4	215
3af5b90b	216	static int __init sha512_generic_mod_init(void)
1da177e4	217	{
648b2a10	218	return crypto_register_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
1da177e4 LT	219	}
1da177e4 LT	220
3af5b90b	221	static void __exit sha512_generic_mod_fini(void)
1da177e4	222	{
648b2a10	223	crypto_unregister_shashes(sha512_algs, ARRAY_SIZE(sha512_algs));
1da177e4 LT	224	}
1da177e4 LT	225
3af5b90b KB	226	module_init(sha512_generic_mod_init);
3af5b90b KB	227	module_exit(sha512_generic_mod_fini);
1da177e4 LT	228
	229	MODULE_LICENSE("GPL");
	230	MODULE_DESCRIPTION("SHA-512 and SHA-384 Secure Hash Algorithms");
78f8b3a2	231
5d26a105	232	MODULE_ALIAS_CRYPTO("sha384");
3e14dcf7	233	MODULE_ALIAS_CRYPTO("sha384-generic");
5d26a105	234	MODULE_ALIAS_CRYPTO("sha512");
3e14dcf7	235	MODULE_ALIAS_CRYPTO("sha512-generic");