[mirror_ubuntu-bionic-kernel.git] / drivers / crypto / padlock-sha.c

/*
 * Cryptographic API.
 *
 * Support for VIA PadLock hardware crypto engine.
 *
 * Copyright (c) 2006  Michal Ludvig <michal@logix.cz>
 *
 * 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 of the License, or
 * (at your option) any later version.
 *
 */

#include <crypto/internal/hash.h>
#include <crypto/sha.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/scatterlist.h>
#include <asm/i387.h>
#include "padlock.h"

struct padlock_sha_desc {
	struct shash_desc fallback;
};

struct padlock_sha_ctx {
	struct crypto_shash *fallback;
};

static int padlock_sha_init(struct shash_desc *desc)
{
	struct padlock_sha_desc *dctx = shash_desc_ctx(desc);
	struct padlock_sha_ctx *ctx = crypto_shash_ctx(desc->tfm);

	dctx->fallback.tfm = ctx->fallback;
	dctx->fallback.flags = desc->flags & CRYPTO_TFM_REQ_MAY_SLEEP;
	return crypto_shash_init(&dctx->fallback);
}

static int padlock_sha_update(struct shash_desc *desc,
			      const u8 *data, unsigned int length)
{
	struct padlock_sha_desc *dctx = shash_desc_ctx(desc);

	dctx->fallback.flags = desc->flags & CRYPTO_TFM_REQ_MAY_SLEEP;
	return crypto_shash_update(&dctx->fallback, data, length);
}

static inline void padlock_output_block(uint32_t *src,
		 	uint32_t *dst, size_t count)
{
	while (count--)
		*dst++ = swab32(*src++);
}

static int padlock_sha1_finup(struct shash_desc *desc, const u8 *in,
			      unsigned int count, u8 *out)
{
	/* We can't store directly to *out as it may be unaligned. */
	/* BTW Don't reduce the buffer size below 128 Bytes!
	 *     PadLock microcode needs it that big. */
	char result[128] __attribute__ ((aligned(PADLOCK_ALIGNMENT)));
	struct padlock_sha_desc *dctx = shash_desc_ctx(desc);
	struct sha1_state state;
	unsigned int space;
	unsigned int leftover;
	int ts_state;
	int err;

	dctx->fallback.flags = desc->flags & CRYPTO_TFM_REQ_MAY_SLEEP;
	err = crypto_shash_export(&dctx->fallback, &state);
	if (err)
		goto out;

	if (state.count + count > ULONG_MAX)
		return crypto_shash_finup(&dctx->fallback, in, count, out);

	leftover = ((state.count - 1) & (SHA1_BLOCK_SIZE - 1)) + 1;
	space =  SHA1_BLOCK_SIZE - leftover;
	if (space) {
		if (count > space) {
			err = crypto_shash_update(&dctx->fallback, in, space) ?:
			      crypto_shash_export(&dctx->fallback, &state);
			if (err)
				goto out;
			count -= space;
			in += space;
		} else {
			memcpy(state.buffer + leftover, in, count);
			in = state.buffer;
			count += leftover;
			state.count &= ~(SHA1_BLOCK_SIZE - 1);
		}
	}

	memcpy(result, &state.state, SHA1_DIGEST_SIZE);

	/* prevent taking the spurious DNA fault with padlock. */
	ts_state = irq_ts_save();
	asm volatile (".byte 0xf3,0x0f,0xa6,0xc8" /* rep xsha1 */
		      : \
		      : "c"((unsigned long)state.count + count), \
			"a"((unsigned long)state.count), \
			"S"(in), "D"(result));
	irq_ts_restore(ts_state);

	padlock_output_block((uint32_t *)result, (uint32_t *)out, 5);

out:
	return err;
}

static int padlock_sha1_final(struct shash_desc *desc, u8 *out)
{
	u8 buf[4];

	return padlock_sha1_finup(desc, buf, 0, out);
}

static int padlock_sha256_finup(struct shash_desc *desc, const u8 *in,
				unsigned int count, u8 *out)
{
	/* We can't store directly to *out as it may be unaligned. */
	/* BTW Don't reduce the buffer size below 128 Bytes!
	 *     PadLock microcode needs it that big. */
	char result[128] __attribute__ ((aligned(PADLOCK_ALIGNMENT)));
	struct padlock_sha_desc *dctx = shash_desc_ctx(desc);
	struct sha256_state state;
	unsigned int space;
	unsigned int leftover;
	int ts_state;
	int err;

	dctx->fallback.flags = desc->flags & CRYPTO_TFM_REQ_MAY_SLEEP;
	err = crypto_shash_export(&dctx->fallback, &state);
	if (err)
		goto out;

	if (state.count + count > ULONG_MAX)
		return crypto_shash_finup(&dctx->fallback, in, count, out);

	leftover = ((state.count - 1) & (SHA256_BLOCK_SIZE - 1)) + 1;
	space =  SHA256_BLOCK_SIZE - leftover;
	if (space) {
		if (count > space) {
			err = crypto_shash_update(&dctx->fallback, in, space) ?:
			      crypto_shash_export(&dctx->fallback, &state);
			if (err)
				goto out;
			count -= space;
			in += space;
		} else {
			memcpy(state.buf + leftover, in, count);
			in = state.buf;
			count += leftover;
			state.count &= ~(SHA1_BLOCK_SIZE - 1);
		}
	}

	memcpy(result, &state.state, SHA256_DIGEST_SIZE);

	/* prevent taking the spurious DNA fault with padlock. */
	ts_state = irq_ts_save();
	asm volatile (".byte 0xf3,0x0f,0xa6,0xd0" /* rep xsha256 */
		      : \
		      : "c"((unsigned long)state.count + count), \
			"a"((unsigned long)state.count), \
			"S"(in), "D"(result));
	irq_ts_restore(ts_state);

	padlock_output_block((uint32_t *)result, (uint32_t *)out, 8);

out:
	return err;
}

static int padlock_sha256_final(struct shash_desc *desc, u8 *out)
{
	u8 buf[4];

	return padlock_sha256_finup(desc, buf, 0, out);
}

static int padlock_cra_init(struct crypto_tfm *tfm)
{
	struct crypto_shash *hash = __crypto_shash_cast(tfm);
	const char *fallback_driver_name = tfm->__crt_alg->cra_name;
	struct padlock_sha_ctx *ctx = crypto_tfm_ctx(tfm);
	struct crypto_shash *fallback_tfm;
	int err = -ENOMEM;

	/* Allocate a fallback and abort if it failed. */
	fallback_tfm = crypto_alloc_shash(fallback_driver_name, 0,
					  CRYPTO_ALG_NEED_FALLBACK);
	if (IS_ERR(fallback_tfm)) {
		printk(KERN_WARNING PFX "Fallback driver '%s' could not be loaded!\n",
		       fallback_driver_name);
		err = PTR_ERR(fallback_tfm);
		goto out;
	}

	ctx->fallback = fallback_tfm;
	hash->descsize += crypto_shash_descsize(fallback_tfm);
	return 0;

out:
	return err;
}

static void padlock_cra_exit(struct crypto_tfm *tfm)
{
	struct padlock_sha_ctx *ctx = crypto_tfm_ctx(tfm);

	crypto_free_shash(ctx->fallback);
}

static struct shash_alg sha1_alg = {
	.digestsize	=	SHA1_DIGEST_SIZE,
	.init   	= 	padlock_sha_init,
	.update 	=	padlock_sha_update,
	.finup  	=	padlock_sha1_finup,
	.final  	=	padlock_sha1_final,
	.descsize	=	sizeof(struct padlock_sha_desc),
	.base		=	{
		.cra_name		=	"sha1",
		.cra_driver_name	=	"sha1-padlock",
		.cra_priority		=	PADLOCK_CRA_PRIORITY,
		.cra_flags		=	CRYPTO_ALG_TYPE_SHASH |
						CRYPTO_ALG_NEED_FALLBACK,
		.cra_blocksize		=	SHA1_BLOCK_SIZE,
		.cra_ctxsize		=	sizeof(struct padlock_sha_ctx),
		.cra_module		=	THIS_MODULE,
		.cra_init		=	padlock_cra_init,
		.cra_exit		=	padlock_cra_exit,
	}
};

static struct shash_alg sha256_alg = {
	.digestsize	=	SHA256_DIGEST_SIZE,
	.init   	= 	padlock_sha_init,
	.update 	=	padlock_sha_update,
	.finup  	=	padlock_sha256_finup,
	.final  	=	padlock_sha256_final,
	.descsize	=	sizeof(struct padlock_sha_desc),
	.base		=	{
		.cra_name		=	"sha256",
		.cra_driver_name	=	"sha256-padlock",
		.cra_priority		=	PADLOCK_CRA_PRIORITY,
		.cra_flags		=	CRYPTO_ALG_TYPE_SHASH |
						CRYPTO_ALG_NEED_FALLBACK,
		.cra_blocksize		=	SHA256_BLOCK_SIZE,
		.cra_ctxsize		=	sizeof(struct padlock_sha_ctx),
		.cra_module		=	THIS_MODULE,
		.cra_init		=	padlock_cra_init,
		.cra_exit		=	padlock_cra_exit,
	}
};

static int __init padlock_init(void)
{
	int rc = -ENODEV;

	if (!cpu_has_phe) {
		printk(KERN_NOTICE PFX "VIA PadLock Hash Engine not detected.\n");
		return -ENODEV;
	}

	if (!cpu_has_phe_enabled) {
		printk(KERN_NOTICE PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
		return -ENODEV;
	}

	rc = crypto_register_shash(&sha1_alg);
	if (rc)
		goto out;

	rc = crypto_register_shash(&sha256_alg);
	if (rc)
		goto out_unreg1;

	printk(KERN_NOTICE PFX "Using VIA PadLock ACE for SHA1/SHA256 algorithms.\n");

	return 0;

out_unreg1:
	crypto_unregister_shash(&sha1_alg);
out:
	printk(KERN_ERR PFX "VIA PadLock SHA1/SHA256 initialization failed.\n");
	return rc;
}

static void __exit padlock_fini(void)
{
	crypto_unregister_shash(&sha1_alg);
	crypto_unregister_shash(&sha256_alg);
}

module_init(padlock_init);
module_exit(padlock_fini);

MODULE_DESCRIPTION("VIA PadLock SHA1/SHA256 algorithms support.");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michal Ludvig");

MODULE_ALIAS("sha1-all");
MODULE_ALIAS("sha256-all");
MODULE_ALIAS("sha1-padlock");
MODULE_ALIAS("sha256-padlock");
Commit	Line	Data
6c833275 ML	1	/*
	2	* Cryptographic API.
	3	*
	4	* Support for VIA PadLock hardware crypto engine.
	5	*
	6	* Copyright (c) 2006 Michal Ludvig <michal@logix.cz>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	*/
	14
7d024608	15	#include <crypto/internal/hash.h>
5265eeb2	16	#include <crypto/sha.h>
6010439f	17	#include <linux/err.h>
6c833275 ML	18	#include <linux/module.h>
	19	#include <linux/init.h>
	20	#include <linux/errno.h>
6c833275 ML	21	#include <linux/interrupt.h>
	22	#include <linux/kernel.h>
	23	#include <linux/scatterlist.h>
e4914012	24	#include <asm/i387.h>
6c833275 ML	25	#include "padlock.h"
6c833275 ML	26
bbbee467 HX	27	struct padlock_sha_desc {
bbbee467 HX	28	struct shash_desc fallback;
6c833275 ML	29	};
6c833275 ML	30
bbbee467 HX	31	struct padlock_sha_ctx {
	32	struct crypto_shash *fallback;
	33	};
6c833275	34
bbbee467	35	static int padlock_sha_init(struct shash_desc *desc)
6c833275	36	{
bbbee467 HX	37	struct padlock_sha_desc *dctx = shash_desc_ctx(desc);
bbbee467 HX	38	struct padlock_sha_ctx *ctx = crypto_shash_ctx(desc->tfm);
6c833275	39
bbbee467 HX	40	dctx->fallback.tfm = ctx->fallback;
	41	dctx->fallback.flags = desc->flags & CRYPTO_TFM_REQ_MAY_SLEEP;
	42	return crypto_shash_init(&dctx->fallback);
6c833275 ML	43	}
6c833275 ML	44
bbbee467 HX	45	static int padlock_sha_update(struct shash_desc *desc,
bbbee467 HX	46	const u8 *data, unsigned int length)
6c833275	47	{
bbbee467	48	struct padlock_sha_desc *dctx = shash_desc_ctx(desc);
6c833275	49
bbbee467 HX	50	dctx->fallback.flags = desc->flags & CRYPTO_TFM_REQ_MAY_SLEEP;
bbbee467 HX	51	return crypto_shash_update(&dctx->fallback, data, length);
6c833275 ML	52	}
	53
	54	static inline void padlock_output_block(uint32_t *src,
	55	uint32_t *dst, size_t count)
	56	{
	57	while (count--)
	58	dst++ = swab32(src++);
	59	}
	60
bbbee467 HX	61	static int padlock_sha1_finup(struct shash_desc desc, const u8 in,
bbbee467 HX	62	unsigned int count, u8 *out)
6c833275 ML	63	{
	64	/* We can't store directly to out as it may be unaligned. /
	65	/* BTW Don't reduce the buffer size below 128 Bytes!
	66	* PadLock microcode needs it that big. */
bbbee467 HX	67	char result[128] __attribute__ ((aligned(PADLOCK_ALIGNMENT)));
	68	struct padlock_sha_desc *dctx = shash_desc_ctx(desc);
	69	struct sha1_state state;
	70	unsigned int space;
	71	unsigned int leftover;
e4914012	72	int ts_state;
bbbee467 HX	73	int err;
	74
	75	dctx->fallback.flags = desc->flags & CRYPTO_TFM_REQ_MAY_SLEEP;
	76	err = crypto_shash_export(&dctx->fallback, &state);
	77	if (err)
	78	goto out;
	79
	80	if (state.count + count > ULONG_MAX)
	81	return crypto_shash_finup(&dctx->fallback, in, count, out);
	82
	83	leftover = ((state.count - 1) & (SHA1_BLOCK_SIZE - 1)) + 1;
	84	space = SHA1_BLOCK_SIZE - leftover;
	85	if (space) {
	86	if (count > space) {
	87	err = crypto_shash_update(&dctx->fallback, in, space) ?:
	88	crypto_shash_export(&dctx->fallback, &state);
	89	if (err)
	90	goto out;
	91	count -= space;
	92	in += space;
	93	} else {
	94	memcpy(state.buffer + leftover, in, count);
	95	in = state.buffer;
	96	count += leftover;
e9b25f16	97	state.count &= ~(SHA1_BLOCK_SIZE - 1);
bbbee467 HX	98	}
	99	}
	100
	101	memcpy(result, &state.state, SHA1_DIGEST_SIZE);
6c833275	102
e4914012 SS	103	/* prevent taking the spurious DNA fault with padlock. */
e4914012 SS	104	ts_state = irq_ts_save();
6c833275	105	asm volatile (".byte 0xf3,0x0f,0xa6,0xc8" /* rep xsha1 */
bbbee467	106	: \
faae8908 HX	107	: "c"((unsigned long)state.count + count), \
faae8908 HX	108	"a"((unsigned long)state.count), \
bbbee467	109	"S"(in), "D"(result));
e4914012	110	irq_ts_restore(ts_state);
6c833275 ML	111
6c833275 ML	112	padlock_output_block((uint32_t )result, (uint32_t )out, 5);
bbbee467 HX	113
	114	out:
	115	return err;
6c833275 ML	116	}
6c833275 ML	117
bbbee467 HX	118	static int padlock_sha1_final(struct shash_desc desc, u8 out)
	119	{
	120	u8 buf[4];
	121
	122	return padlock_sha1_finup(desc, buf, 0, out);
	123	}
	124
	125	static int padlock_sha256_finup(struct shash_desc desc, const u8 in,
	126	unsigned int count, u8 *out)
6c833275 ML	127	{
	128	/* We can't store directly to out as it may be unaligned. /
	129	/* BTW Don't reduce the buffer size below 128 Bytes!
	130	* PadLock microcode needs it that big. */
bbbee467 HX	131	char result[128] __attribute__ ((aligned(PADLOCK_ALIGNMENT)));
	132	struct padlock_sha_desc *dctx = shash_desc_ctx(desc);
	133	struct sha256_state state;
	134	unsigned int space;
	135	unsigned int leftover;
e4914012	136	int ts_state;
bbbee467	137	int err;
6c833275	138
bbbee467 HX	139	dctx->fallback.flags = desc->flags & CRYPTO_TFM_REQ_MAY_SLEEP;
	140	err = crypto_shash_export(&dctx->fallback, &state);
	141	if (err)
	142	goto out;
	143
	144	if (state.count + count > ULONG_MAX)
	145	return crypto_shash_finup(&dctx->fallback, in, count, out);
	146
	147	leftover = ((state.count - 1) & (SHA256_BLOCK_SIZE - 1)) + 1;
	148	space = SHA256_BLOCK_SIZE - leftover;
	149	if (space) {
	150	if (count > space) {
	151	err = crypto_shash_update(&dctx->fallback, in, space) ?:
	152	crypto_shash_export(&dctx->fallback, &state);
	153	if (err)
	154	goto out;
	155	count -= space;
	156	in += space;
	157	} else {
	158	memcpy(state.buf + leftover, in, count);
	159	in = state.buf;
	160	count += leftover;
e9b25f16	161	state.count &= ~(SHA1_BLOCK_SIZE - 1);
bbbee467 HX	162	}
	163	}
	164
	165	memcpy(result, &state.state, SHA256_DIGEST_SIZE);
6c833275	166
e4914012 SS	167	/* prevent taking the spurious DNA fault with padlock. */
e4914012 SS	168	ts_state = irq_ts_save();
6c833275	169	asm volatile (".byte 0xf3,0x0f,0xa6,0xd0" /* rep xsha256 */
bbbee467	170	: \
faae8908 HX	171	: "c"((unsigned long)state.count + count), \
faae8908 HX	172	"a"((unsigned long)state.count), \
bbbee467	173	"S"(in), "D"(result));
e4914012	174	irq_ts_restore(ts_state);
6c833275 ML	175
6c833275 ML	176	padlock_output_block((uint32_t )result, (uint32_t )out, 8);
bbbee467 HX	177
	178	out:
	179	return err;
6c833275 ML	180	}
6c833275 ML	181
bbbee467	182	static int padlock_sha256_final(struct shash_desc desc, u8 out)
6c833275	183	{
bbbee467	184	u8 buf[4];
6c833275	185
bbbee467	186	return padlock_sha256_finup(desc, buf, 0, out);
6c833275 ML	187	}
6c833275 ML	188
6010439f	189	static int padlock_cra_init(struct crypto_tfm *tfm)
6c833275	190	{
bbbee467	191	struct crypto_shash *hash = __crypto_shash_cast(tfm);
6010439f	192	const char *fallback_driver_name = tfm->__crt_alg->cra_name;
bbbee467	193	struct padlock_sha_ctx *ctx = crypto_tfm_ctx(tfm);
7d024608 HX	194	struct crypto_shash *fallback_tfm;
7d024608 HX	195	int err = -ENOMEM;
6010439f	196
6c833275	197	/* Allocate a fallback and abort if it failed. */
7d024608 HX	198	fallback_tfm = crypto_alloc_shash(fallback_driver_name, 0,
7d024608 HX	199	CRYPTO_ALG_NEED_FALLBACK);
6010439f	200	if (IS_ERR(fallback_tfm)) {
6c833275 ML	201	printk(KERN_WARNING PFX "Fallback driver '%s' could not be loaded!\n",
6c833275 ML	202	fallback_driver_name);
7d024608	203	err = PTR_ERR(fallback_tfm);
bbbee467	204	goto out;
6c833275 ML	205	}
6c833275 ML	206
bbbee467 HX	207	ctx->fallback = fallback_tfm;
bbbee467 HX	208	hash->descsize += crypto_shash_descsize(fallback_tfm);
6c833275	209	return 0;
7d024608	210
7d024608 HX	211	out:
7d024608 HX	212	return err;
6c833275 ML	213	}
6c833275 ML	214
6c833275 ML	215	static void padlock_cra_exit(struct crypto_tfm *tfm)
6c833275 ML	216	{
bbbee467	217	struct padlock_sha_ctx *ctx = crypto_tfm_ctx(tfm);
7d024608	218
bbbee467	219	crypto_free_shash(ctx->fallback);
6c833275 ML	220	}
6c833275 ML	221
bbbee467 HX	222	static struct shash_alg sha1_alg = {
	223	.digestsize = SHA1_DIGEST_SIZE,
	224	.init = padlock_sha_init,
	225	.update = padlock_sha_update,
	226	.finup = padlock_sha1_finup,
	227	.final = padlock_sha1_final,
	228	.descsize = sizeof(struct padlock_sha_desc),
	229	.base = {
	230	.cra_name = "sha1",
	231	.cra_driver_name = "sha1-padlock",
	232	.cra_priority = PADLOCK_CRA_PRIORITY,
	233	.cra_flags = CRYPTO_ALG_TYPE_SHASH \|
	234	CRYPTO_ALG_NEED_FALLBACK,
	235	.cra_blocksize = SHA1_BLOCK_SIZE,
	236	.cra_ctxsize = sizeof(struct padlock_sha_ctx),
	237	.cra_module = THIS_MODULE,
	238	.cra_init = padlock_cra_init,
	239	.cra_exit = padlock_cra_exit,
6c833275 ML	240	}
	241	};
	242
bbbee467 HX	243	static struct shash_alg sha256_alg = {
	244	.digestsize = SHA256_DIGEST_SIZE,
	245	.init = padlock_sha_init,
	246	.update = padlock_sha_update,
	247	.finup = padlock_sha256_finup,
	248	.final = padlock_sha256_final,
	249	.descsize = sizeof(struct padlock_sha_desc),
	250	.base = {
	251	.cra_name = "sha256",
	252	.cra_driver_name = "sha256-padlock",
	253	.cra_priority = PADLOCK_CRA_PRIORITY,
	254	.cra_flags = CRYPTO_ALG_TYPE_SHASH \|
	255	CRYPTO_ALG_NEED_FALLBACK,
	256	.cra_blocksize = SHA256_BLOCK_SIZE,
	257	.cra_ctxsize = sizeof(struct padlock_sha_ctx),
	258	.cra_module = THIS_MODULE,
	259	.cra_init = padlock_cra_init,
	260	.cra_exit = padlock_cra_exit,
6c833275 ML	261	}
	262	};
	263
6c833275 ML	264	static int __init padlock_init(void)
	265	{
	266	int rc = -ENODEV;
	267
	268	if (!cpu_has_phe) {
b43e726b	269	printk(KERN_NOTICE PFX "VIA PadLock Hash Engine not detected.\n");
6c833275 ML	270	return -ENODEV;
	271	}
	272
	273	if (!cpu_has_phe_enabled) {
b43e726b	274	printk(KERN_NOTICE PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
6c833275 ML	275	return -ENODEV;
	276	}
	277
bbbee467	278	rc = crypto_register_shash(&sha1_alg);
6c833275 ML	279	if (rc)
	280	goto out;
	281
bbbee467	282	rc = crypto_register_shash(&sha256_alg);
6c833275 ML	283	if (rc)
	284	goto out_unreg1;
	285
	286	printk(KERN_NOTICE PFX "Using VIA PadLock ACE for SHA1/SHA256 algorithms.\n");
	287
	288	return 0;
	289
	290	out_unreg1:
bbbee467	291	crypto_unregister_shash(&sha1_alg);
6c833275 ML	292	out:
	293	printk(KERN_ERR PFX "VIA PadLock SHA1/SHA256 initialization failed.\n");
	294	return rc;
	295	}
	296
	297	static void __exit padlock_fini(void)
	298	{
bbbee467 HX	299	crypto_unregister_shash(&sha1_alg);
bbbee467 HX	300	crypto_unregister_shash(&sha256_alg);
6c833275 ML	301	}
	302
	303	module_init(padlock_init);
	304	module_exit(padlock_fini);
	305
	306	MODULE_DESCRIPTION("VIA PadLock SHA1/SHA256 algorithms support.");
	307	MODULE_LICENSE("GPL");
	308	MODULE_AUTHOR("Michal Ludvig");
	309
a760a665 HX	310	MODULE_ALIAS("sha1-all");
a760a665 HX	311	MODULE_ALIAS("sha256-all");
6c833275 ML	312	MODULE_ALIAS("sha1-padlock");
6c833275 ML	313	MODULE_ALIAS("sha256-padlock");