637 lines
18 KiB
C
637 lines
18 KiB
C
|
/*
|
||
|
|
* Cryptographic API.
|
||
|
|
*
|
||
|
|
* s390 implementation of the DES Cipher Algorithm.
|
||
|
|
*
|
||
|
|
* Copyright IBM Corp. 2003,2007
|
||
|
|
* Author(s): Thomas Spatzier
|
||
|
|
* Jan Glauber (jan.glauber@de.ibm.com)
|
||
|
|
*
|
||
|
|
* 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/algapi.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
|
||
|
|
#include "crypt_s390.h"
|
||
|
|
#include "crypto_des.h"
|
||
|
|
|
||
|
|
#define DES_BLOCK_SIZE 8
|
||
|
|
#define DES_KEY_SIZE 8
|
||
|
|
|
||
|
|
#define DES3_128_KEY_SIZE (2 * DES_KEY_SIZE)
|
||
|
|
#define DES3_128_BLOCK_SIZE DES_BLOCK_SIZE
|
||
|
|
|
||
|
|
#define DES3_192_KEY_SIZE (3 * DES_KEY_SIZE)
|
||
|
|
#define DES3_192_BLOCK_SIZE DES_BLOCK_SIZE
|
||
|
|
|
||
|
|
struct crypt_s390_des_ctx {
|
||
|
|
u8 iv[DES_BLOCK_SIZE];
|
||
|
|
u8 key[DES_KEY_SIZE];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct crypt_s390_des3_128_ctx {
|
||
|
|
u8 iv[DES_BLOCK_SIZE];
|
||
|
|
u8 key[DES3_128_KEY_SIZE];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct crypt_s390_des3_192_ctx {
|
||
|
|
u8 iv[DES_BLOCK_SIZE];
|
||
|
|
u8 key[DES3_192_KEY_SIZE];
|
||
|
|
};
|
||
|
|
|
||
|
|
static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
|
||
|
|
unsigned int keylen)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
|
||
|
|
u32 *flags = &tfm->crt_flags;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
/* test if key is valid (not a weak key) */
|
||
|
|
ret = crypto_des_check_key(key, keylen, flags);
|
||
|
|
if (ret == 0)
|
||
|
|
memcpy(dctx->key, key, keylen);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
|
||
|
|
|
||
|
|
crypt_s390_km(KM_DEA_ENCRYPT, dctx->key, out, in, DES_BLOCK_SIZE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm);
|
||
|
|
|
||
|
|
crypt_s390_km(KM_DEA_DECRYPT, dctx->key, out, in, DES_BLOCK_SIZE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct crypto_alg des_alg = {
|
||
|
|
.cra_name = "des",
|
||
|
|
.cra_driver_name = "des-s390",
|
||
|
|
.cra_priority = CRYPT_S390_PRIORITY,
|
||
|
|
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
|
||
|
|
.cra_blocksize = DES_BLOCK_SIZE,
|
||
|
|
.cra_ctxsize = sizeof(struct crypt_s390_des_ctx),
|
||
|
|
.cra_module = THIS_MODULE,
|
||
|
|
.cra_list = LIST_HEAD_INIT(des_alg.cra_list),
|
||
|
|
.cra_u = {
|
||
|
|
.cipher = {
|
||
|
|
.cia_min_keysize = DES_KEY_SIZE,
|
||
|
|
.cia_max_keysize = DES_KEY_SIZE,
|
||
|
|
.cia_setkey = des_setkey,
|
||
|
|
.cia_encrypt = des_encrypt,
|
||
|
|
.cia_decrypt = des_decrypt,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
static int ecb_desall_crypt(struct blkcipher_desc *desc, long func,
|
||
|
|
void *param, struct blkcipher_walk *walk)
|
||
|
|
{
|
||
|
|
int ret = blkcipher_walk_virt(desc, walk);
|
||
|
|
unsigned int nbytes;
|
||
|
|
|
||
|
|
while ((nbytes = walk->nbytes)) {
|
||
|
|
/* only use complete blocks */
|
||
|
|
unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
|
||
|
|
u8 *out = walk->dst.virt.addr;
|
||
|
|
u8 *in = walk->src.virt.addr;
|
||
|
|
|
||
|
|
ret = crypt_s390_km(func, param, out, in, n);
|
||
|
|
BUG_ON((ret < 0) || (ret != n));
|
||
|
|
|
||
|
|
nbytes &= DES_BLOCK_SIZE - 1;
|
||
|
|
ret = blkcipher_walk_done(desc, walk, nbytes);
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cbc_desall_crypt(struct blkcipher_desc *desc, long func,
|
||
|
|
void *param, struct blkcipher_walk *walk)
|
||
|
|
{
|
||
|
|
int ret = blkcipher_walk_virt(desc, walk);
|
||
|
|
unsigned int nbytes = walk->nbytes;
|
||
|
|
|
||
|
|
if (!nbytes)
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
memcpy(param, walk->iv, DES_BLOCK_SIZE);
|
||
|
|
do {
|
||
|
|
/* only use complete blocks */
|
||
|
|
unsigned int n = nbytes & ~(DES_BLOCK_SIZE - 1);
|
||
|
|
u8 *out = walk->dst.virt.addr;
|
||
|
|
u8 *in = walk->src.virt.addr;
|
||
|
|
|
||
|
|
ret = crypt_s390_kmc(func, param, out, in, n);
|
||
|
|
BUG_ON((ret < 0) || (ret != n));
|
||
|
|
|
||
|
|
nbytes &= DES_BLOCK_SIZE - 1;
|
||
|
|
ret = blkcipher_walk_done(desc, walk, nbytes);
|
||
|
|
} while ((nbytes = walk->nbytes));
|
||
|
|
memcpy(walk->iv, param, DES_BLOCK_SIZE);
|
||
|
|
|
||
|
|
out:
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ecb_des_encrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst, struct scatterlist *src,
|
||
|
|
unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return ecb_desall_crypt(desc, KM_DEA_ENCRYPT, sctx->key, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ecb_des_decrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst, struct scatterlist *src,
|
||
|
|
unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return ecb_desall_crypt(desc, KM_DEA_DECRYPT, sctx->key, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct crypto_alg ecb_des_alg = {
|
||
|
|
.cra_name = "ecb(des)",
|
||
|
|
.cra_driver_name = "ecb-des-s390",
|
||
|
|
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
|
||
|
|
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
|
||
|
|
.cra_blocksize = DES_BLOCK_SIZE,
|
||
|
|
.cra_ctxsize = sizeof(struct crypt_s390_des_ctx),
|
||
|
|
.cra_type = &crypto_blkcipher_type,
|
||
|
|
.cra_module = THIS_MODULE,
|
||
|
|
.cra_list = LIST_HEAD_INIT(ecb_des_alg.cra_list),
|
||
|
|
.cra_u = {
|
||
|
|
.blkcipher = {
|
||
|
|
.min_keysize = DES_KEY_SIZE,
|
||
|
|
.max_keysize = DES_KEY_SIZE,
|
||
|
|
.setkey = des_setkey,
|
||
|
|
.encrypt = ecb_des_encrypt,
|
||
|
|
.decrypt = ecb_des_decrypt,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
static int cbc_des_encrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst, struct scatterlist *src,
|
||
|
|
unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return cbc_desall_crypt(desc, KMC_DEA_ENCRYPT, sctx->iv, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cbc_des_decrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst, struct scatterlist *src,
|
||
|
|
unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return cbc_desall_crypt(desc, KMC_DEA_DECRYPT, sctx->iv, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct crypto_alg cbc_des_alg = {
|
||
|
|
.cra_name = "cbc(des)",
|
||
|
|
.cra_driver_name = "cbc-des-s390",
|
||
|
|
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
|
||
|
|
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
|
||
|
|
.cra_blocksize = DES_BLOCK_SIZE,
|
||
|
|
.cra_ctxsize = sizeof(struct crypt_s390_des_ctx),
|
||
|
|
.cra_type = &crypto_blkcipher_type,
|
||
|
|
.cra_module = THIS_MODULE,
|
||
|
|
.cra_list = LIST_HEAD_INIT(cbc_des_alg.cra_list),
|
||
|
|
.cra_u = {
|
||
|
|
.blkcipher = {
|
||
|
|
.min_keysize = DES_KEY_SIZE,
|
||
|
|
.max_keysize = DES_KEY_SIZE,
|
||
|
|
.ivsize = DES_BLOCK_SIZE,
|
||
|
|
.setkey = des_setkey,
|
||
|
|
.encrypt = cbc_des_encrypt,
|
||
|
|
.decrypt = cbc_des_decrypt,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* RFC2451:
|
||
|
|
*
|
||
|
|
* For DES-EDE3, there is no known need to reject weak or
|
||
|
|
* complementation keys. Any weakness is obviated by the use of
|
||
|
|
* multiple keys.
|
||
|
|
*
|
||
|
|
* However, if the two independent 64-bit keys are equal,
|
||
|
|
* then the DES3 operation is simply the same as DES.
|
||
|
|
* Implementers MUST reject keys that exhibit this property.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
static int des3_128_setkey(struct crypto_tfm *tfm, const u8 *key,
|
||
|
|
unsigned int keylen)
|
||
|
|
{
|
||
|
|
int i, ret;
|
||
|
|
struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
|
||
|
|
const u8 *temp_key = key;
|
||
|
|
u32 *flags = &tfm->crt_flags;
|
||
|
|
|
||
|
|
if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE)) &&
|
||
|
|
(*flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
|
||
|
|
*flags |= CRYPTO_TFM_RES_WEAK_KEY;
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
for (i = 0; i < 2; i++, temp_key += DES_KEY_SIZE) {
|
||
|
|
ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
|
||
|
|
if (ret < 0)
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
memcpy(dctx->key, key, keylen);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void des3_128_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
|
||
|
|
|
||
|
|
crypt_s390_km(KM_TDEA_128_ENCRYPT, dctx->key, dst, (void*)src,
|
||
|
|
DES3_128_BLOCK_SIZE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void des3_128_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm);
|
||
|
|
|
||
|
|
crypt_s390_km(KM_TDEA_128_DECRYPT, dctx->key, dst, (void*)src,
|
||
|
|
DES3_128_BLOCK_SIZE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct crypto_alg des3_128_alg = {
|
||
|
|
.cra_name = "des3_ede128",
|
||
|
|
.cra_driver_name = "des3_ede128-s390",
|
||
|
|
.cra_priority = CRYPT_S390_PRIORITY,
|
||
|
|
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
|
||
|
|
.cra_blocksize = DES3_128_BLOCK_SIZE,
|
||
|
|
.cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx),
|
||
|
|
.cra_module = THIS_MODULE,
|
||
|
|
.cra_list = LIST_HEAD_INIT(des3_128_alg.cra_list),
|
||
|
|
.cra_u = {
|
||
|
|
.cipher = {
|
||
|
|
.cia_min_keysize = DES3_128_KEY_SIZE,
|
||
|
|
.cia_max_keysize = DES3_128_KEY_SIZE,
|
||
|
|
.cia_setkey = des3_128_setkey,
|
||
|
|
.cia_encrypt = des3_128_encrypt,
|
||
|
|
.cia_decrypt = des3_128_decrypt,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
static int ecb_des3_128_encrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst,
|
||
|
|
struct scatterlist *src, unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return ecb_desall_crypt(desc, KM_TDEA_128_ENCRYPT, sctx->key, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ecb_des3_128_decrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst,
|
||
|
|
struct scatterlist *src, unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return ecb_desall_crypt(desc, KM_TDEA_128_DECRYPT, sctx->key, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct crypto_alg ecb_des3_128_alg = {
|
||
|
|
.cra_name = "ecb(des3_ede128)",
|
||
|
|
.cra_driver_name = "ecb-des3_ede128-s390",
|
||
|
|
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
|
||
|
|
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
|
||
|
|
.cra_blocksize = DES3_128_BLOCK_SIZE,
|
||
|
|
.cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx),
|
||
|
|
.cra_type = &crypto_blkcipher_type,
|
||
|
|
.cra_module = THIS_MODULE,
|
||
|
|
.cra_list = LIST_HEAD_INIT(
|
||
|
|
ecb_des3_128_alg.cra_list),
|
||
|
|
.cra_u = {
|
||
|
|
.blkcipher = {
|
||
|
|
.min_keysize = DES3_128_KEY_SIZE,
|
||
|
|
.max_keysize = DES3_128_KEY_SIZE,
|
||
|
|
.setkey = des3_128_setkey,
|
||
|
|
.encrypt = ecb_des3_128_encrypt,
|
||
|
|
.decrypt = ecb_des3_128_decrypt,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
static int cbc_des3_128_encrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst,
|
||
|
|
struct scatterlist *src, unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return cbc_desall_crypt(desc, KMC_TDEA_128_ENCRYPT, sctx->iv, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cbc_des3_128_decrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst,
|
||
|
|
struct scatterlist *src, unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_128_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return cbc_desall_crypt(desc, KMC_TDEA_128_DECRYPT, sctx->iv, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct crypto_alg cbc_des3_128_alg = {
|
||
|
|
.cra_name = "cbc(des3_ede128)",
|
||
|
|
.cra_driver_name = "cbc-des3_ede128-s390",
|
||
|
|
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
|
||
|
|
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
|
||
|
|
.cra_blocksize = DES3_128_BLOCK_SIZE,
|
||
|
|
.cra_ctxsize = sizeof(struct crypt_s390_des3_128_ctx),
|
||
|
|
.cra_type = &crypto_blkcipher_type,
|
||
|
|
.cra_module = THIS_MODULE,
|
||
|
|
.cra_list = LIST_HEAD_INIT(
|
||
|
|
cbc_des3_128_alg.cra_list),
|
||
|
|
.cra_u = {
|
||
|
|
.blkcipher = {
|
||
|
|
.min_keysize = DES3_128_KEY_SIZE,
|
||
|
|
.max_keysize = DES3_128_KEY_SIZE,
|
||
|
|
.ivsize = DES3_128_BLOCK_SIZE,
|
||
|
|
.setkey = des3_128_setkey,
|
||
|
|
.encrypt = cbc_des3_128_encrypt,
|
||
|
|
.decrypt = cbc_des3_128_decrypt,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* RFC2451:
|
||
|
|
*
|
||
|
|
* For DES-EDE3, there is no known need to reject weak or
|
||
|
|
* complementation keys. Any weakness is obviated by the use of
|
||
|
|
* multiple keys.
|
||
|
|
*
|
||
|
|
* However, if the first two or last two independent 64-bit keys are
|
||
|
|
* equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
|
||
|
|
* same as DES. Implementers MUST reject keys that exhibit this
|
||
|
|
* property.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key,
|
||
|
|
unsigned int keylen)
|
||
|
|
{
|
||
|
|
int i, ret;
|
||
|
|
struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
|
||
|
|
const u8 *temp_key = key;
|
||
|
|
u32 *flags = &tfm->crt_flags;
|
||
|
|
|
||
|
|
if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) &&
|
||
|
|
memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2],
|
||
|
|
DES_KEY_SIZE)) &&
|
||
|
|
(*flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
|
||
|
|
*flags |= CRYPTO_TFM_RES_WEAK_KEY;
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
for (i = 0; i < 3; i++, temp_key += DES_KEY_SIZE) {
|
||
|
|
ret = crypto_des_check_key(temp_key, DES_KEY_SIZE, flags);
|
||
|
|
if (ret < 0)
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
memcpy(dctx->key, key, keylen);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void des3_192_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
|
||
|
|
|
||
|
|
crypt_s390_km(KM_TDEA_192_ENCRYPT, dctx->key, dst, (void*)src,
|
||
|
|
DES3_192_BLOCK_SIZE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm);
|
||
|
|
|
||
|
|
crypt_s390_km(KM_TDEA_192_DECRYPT, dctx->key, dst, (void*)src,
|
||
|
|
DES3_192_BLOCK_SIZE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct crypto_alg des3_192_alg = {
|
||
|
|
.cra_name = "des3_ede",
|
||
|
|
.cra_driver_name = "des3_ede-s390",
|
||
|
|
.cra_priority = CRYPT_S390_PRIORITY,
|
||
|
|
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
|
||
|
|
.cra_blocksize = DES3_192_BLOCK_SIZE,
|
||
|
|
.cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx),
|
||
|
|
.cra_module = THIS_MODULE,
|
||
|
|
.cra_list = LIST_HEAD_INIT(des3_192_alg.cra_list),
|
||
|
|
.cra_u = {
|
||
|
|
.cipher = {
|
||
|
|
.cia_min_keysize = DES3_192_KEY_SIZE,
|
||
|
|
.cia_max_keysize = DES3_192_KEY_SIZE,
|
||
|
|
.cia_setkey = des3_192_setkey,
|
||
|
|
.cia_encrypt = des3_192_encrypt,
|
||
|
|
.cia_decrypt = des3_192_decrypt,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
static int ecb_des3_192_encrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst,
|
||
|
|
struct scatterlist *src, unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return ecb_desall_crypt(desc, KM_TDEA_192_ENCRYPT, sctx->key, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ecb_des3_192_decrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst,
|
||
|
|
struct scatterlist *src, unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return ecb_desall_crypt(desc, KM_TDEA_192_DECRYPT, sctx->key, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct crypto_alg ecb_des3_192_alg = {
|
||
|
|
.cra_name = "ecb(des3_ede)",
|
||
|
|
.cra_driver_name = "ecb-des3_ede-s390",
|
||
|
|
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
|
||
|
|
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
|
||
|
|
.cra_blocksize = DES3_192_BLOCK_SIZE,
|
||
|
|
.cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx),
|
||
|
|
.cra_type = &crypto_blkcipher_type,
|
||
|
|
.cra_module = THIS_MODULE,
|
||
|
|
.cra_list = LIST_HEAD_INIT(
|
||
|
|
ecb_des3_192_alg.cra_list),
|
||
|
|
.cra_u = {
|
||
|
|
.blkcipher = {
|
||
|
|
.min_keysize = DES3_192_KEY_SIZE,
|
||
|
|
.max_keysize = DES3_192_KEY_SIZE,
|
||
|
|
.setkey = des3_192_setkey,
|
||
|
|
.encrypt = ecb_des3_192_encrypt,
|
||
|
|
.decrypt = ecb_des3_192_decrypt,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
static int cbc_des3_192_encrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst,
|
||
|
|
struct scatterlist *src, unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return cbc_desall_crypt(desc, KMC_TDEA_192_ENCRYPT, sctx->iv, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int cbc_des3_192_decrypt(struct blkcipher_desc *desc,
|
||
|
|
struct scatterlist *dst,
|
||
|
|
struct scatterlist *src, unsigned int nbytes)
|
||
|
|
{
|
||
|
|
struct crypt_s390_des3_192_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
|
||
|
|
struct blkcipher_walk walk;
|
||
|
|
|
||
|
|
blkcipher_walk_init(&walk, dst, src, nbytes);
|
||
|
|
return cbc_desall_crypt(desc, KMC_TDEA_192_DECRYPT, sctx->iv, &walk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct crypto_alg cbc_des3_192_alg = {
|
||
|
|
.cra_name = "cbc(des3_ede)",
|
||
|
|
.cra_driver_name = "cbc-des3_ede-s390",
|
||
|
|
.cra_priority = CRYPT_S390_COMPOSITE_PRIORITY,
|
||
|
|
.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
|
||
|
|
.cra_blocksize = DES3_192_BLOCK_SIZE,
|
||
|
|
.cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx),
|
||
|
|
.cra_type = &crypto_blkcipher_type,
|
||
|
|
.cra_module = THIS_MODULE,
|
||
|
|
.cra_list = LIST_HEAD_INIT(
|
||
|
|
cbc_des3_192_alg.cra_list),
|
||
|
|
.cra_u = {
|
||
|
|
.blkcipher = {
|
||
|
|
.min_keysize = DES3_192_KEY_SIZE,
|
||
|
|
.max_keysize = DES3_192_KEY_SIZE,
|
||
|
|
.ivsize = DES3_192_BLOCK_SIZE,
|
||
|
|
.setkey = des3_192_setkey,
|
||
|
|
.encrypt = cbc_des3_192_encrypt,
|
||
|
|
.decrypt = cbc_des3_192_decrypt,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
static int des_s390_init(void)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
|
||
|
|
if (!crypt_s390_func_available(KM_DEA_ENCRYPT) ||
|
||
|
|
!crypt_s390_func_available(KM_TDEA_128_ENCRYPT) ||
|
||
|
|
!crypt_s390_func_available(KM_TDEA_192_ENCRYPT))
|
||
|
|
return -EOPNOTSUPP;
|
||
|
|
|
||
|
|
ret = crypto_register_alg(&des_alg);
|
||
|
|
if (ret)
|
||
|
|
goto des_err;
|
||
|
|
ret = crypto_register_alg(&ecb_des_alg);
|
||
|
|
if (ret)
|
||
|
|
goto ecb_des_err;
|
||
|
|
ret = crypto_register_alg(&cbc_des_alg);
|
||
|
|
if (ret)
|
||
|
|
goto cbc_des_err;
|
||
|
|
|
||
|
|
ret = crypto_register_alg(&des3_128_alg);
|
||
|
|
if (ret)
|
||
|
|
goto des3_128_err;
|
||
|
|
ret = crypto_register_alg(&ecb_des3_128_alg);
|
||
|
|
if (ret)
|
||
|
|
goto ecb_des3_128_err;
|
||
|
|
ret = crypto_register_alg(&cbc_des3_128_alg);
|
||
|
|
if (ret)
|
||
|
|
goto cbc_des3_128_err;
|
||
|
|
|
||
|
|
ret = crypto_register_alg(&des3_192_alg);
|
||
|
|
if (ret)
|
||
|
|
goto des3_192_err;
|
||
|
|
ret = crypto_register_alg(&ecb_des3_192_alg);
|
||
|
|
if (ret)
|
||
|
|
goto ecb_des3_192_err;
|
||
|
|
ret = crypto_register_alg(&cbc_des3_192_alg);
|
||
|
|
if (ret)
|
||
|
|
goto cbc_des3_192_err;
|
||
|
|
|
||
|
|
out:
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
cbc_des3_192_err:
|
||
|
|
crypto_unregister_alg(&ecb_des3_192_alg);
|
||
|
|
ecb_des3_192_err:
|
||
|
|
crypto_unregister_alg(&des3_192_alg);
|
||
|
|
des3_192_err:
|
||
|
|
crypto_unregister_alg(&cbc_des3_128_alg);
|
||
|
|
cbc_des3_128_err:
|
||
|
|
crypto_unregister_alg(&ecb_des3_128_alg);
|
||
|
|
ecb_des3_128_err:
|
||
|
|
crypto_unregister_alg(&des3_128_alg);
|
||
|
|
des3_128_err:
|
||
|
|
crypto_unregister_alg(&cbc_des_alg);
|
||
|
|
cbc_des_err:
|
||
|
|
crypto_unregister_alg(&ecb_des_alg);
|
||
|
|
ecb_des_err:
|
||
|
|
crypto_unregister_alg(&des_alg);
|
||
|
|
des_err:
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit des_s390_fini(void)
|
||
|
|
{
|
||
|
|
crypto_unregister_alg(&cbc_des3_192_alg);
|
||
|
|
crypto_unregister_alg(&ecb_des3_192_alg);
|
||
|
|
crypto_unregister_alg(&des3_192_alg);
|
||
|
|
crypto_unregister_alg(&cbc_des3_128_alg);
|
||
|
|
crypto_unregister_alg(&ecb_des3_128_alg);
|
||
|
|
crypto_unregister_alg(&des3_128_alg);
|
||
|
|
crypto_unregister_alg(&cbc_des_alg);
|
||
|
|
crypto_unregister_alg(&ecb_des_alg);
|
||
|
|
crypto_unregister_alg(&des_alg);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(des_s390_init);
|
||
|
|
module_exit(des_s390_fini);
|
||
|
|
|
||
|
|
MODULE_ALIAS("des");
|
||
|
|
MODULE_ALIAS("des3_ede");
|
||
|
|
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms");
|