diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/crypto/Makefile | 2 | ||||
| -rw-r--r-- | arch/s390/crypto/des_s390.c | 47 |
2 files changed, 21 insertions, 28 deletions
diff --git a/arch/s390/crypto/Makefile b/arch/s390/crypto/Makefile index 6a1157fa4f9..1cf81d77c5a 100644 --- a/arch/s390/crypto/Makefile +++ b/arch/s390/crypto/Makefile @@ -5,6 +5,6 @@ obj-$(CONFIG_CRYPTO_SHA1_S390) += sha1_s390.o sha_common.o obj-$(CONFIG_CRYPTO_SHA256_S390) += sha256_s390.o sha_common.o obj-$(CONFIG_CRYPTO_SHA512_S390) += sha512_s390.o sha_common.o -obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o des_check_key.o +obj-$(CONFIG_CRYPTO_DES_S390) += des_s390.o obj-$(CONFIG_CRYPTO_AES_S390) += aes_s390.o obj-$(CONFIG_S390_PRNG) += prng.o diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c index a1a18b30309..cc542011839 100644 --- a/arch/s390/crypto/des_s390.c +++ b/arch/s390/crypto/des_s390.c @@ -14,18 +14,15 @@ * */ -#include <crypto/algapi.h> #include <linux/init.h> #include <linux/module.h> +#include <linux/crypto.h> +#include <crypto/algapi.h> +#include <crypto/des.h> #include "crypt_s390.h" -#include "crypto_des.h" - -#define DES_BLOCK_SIZE 8 -#define DES_KEY_SIZE 8 #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]; @@ -42,13 +39,16 @@ static int des_setkey(struct crypto_tfm *tfm, const u8 *key, { struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm); u32 *flags = &tfm->crt_flags; - int ret; + u32 tmp[DES_EXPKEY_WORDS]; - /* 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; + /* check for weak keys */ + if (!des_ekey(tmp, key) && (*flags & CRYPTO_TFM_REQ_WEAK_KEY)) { + *flags |= CRYPTO_TFM_RES_WEAK_KEY; + return -EINVAL; + } + + memcpy(dctx->key, key, keylen); + return 0; } static void des_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) @@ -238,9 +238,7 @@ static struct crypto_alg cbc_des_alg = { 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) && @@ -250,11 +248,6 @@ static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *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; } @@ -264,7 +257,7 @@ 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); + DES_BLOCK_SIZE); } static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) @@ -272,7 +265,7 @@ 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); + DES_BLOCK_SIZE); } static struct crypto_alg des3_192_alg = { @@ -280,7 +273,7 @@ static struct crypto_alg des3_192_alg = { .cra_driver_name = "des3_ede-s390", .cra_priority = CRYPT_S390_PRIORITY, .cra_flags = CRYPTO_ALG_TYPE_CIPHER, - .cra_blocksize = DES3_192_BLOCK_SIZE, + .cra_blocksize = DES_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), @@ -322,7 +315,7 @@ static struct crypto_alg ecb_des3_192_alg = { .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_blocksize = DES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx), .cra_type = &crypto_blkcipher_type, .cra_module = THIS_MODULE, @@ -366,7 +359,7 @@ static struct crypto_alg cbc_des3_192_alg = { .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_blocksize = DES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct crypt_s390_des3_192_ctx), .cra_type = &crypto_blkcipher_type, .cra_module = THIS_MODULE, @@ -376,7 +369,7 @@ static struct crypto_alg cbc_des3_192_alg = { .blkcipher = { .min_keysize = DES3_192_KEY_SIZE, .max_keysize = DES3_192_KEY_SIZE, - .ivsize = DES3_192_BLOCK_SIZE, + .ivsize = DES_BLOCK_SIZE, .setkey = des3_192_setkey, .encrypt = cbc_des3_192_encrypt, .decrypt = cbc_des3_192_decrypt, @@ -427,7 +420,7 @@ des_err: goto out; } -static void __exit des_s390_fini(void) +static void __exit des_s390_exit(void) { crypto_unregister_alg(&cbc_des3_192_alg); crypto_unregister_alg(&ecb_des3_192_alg); @@ -438,7 +431,7 @@ static void __exit des_s390_fini(void) } module_init(des_s390_init); -module_exit(des_s390_fini); +module_exit(des_s390_exit); MODULE_ALIAS("des"); MODULE_ALIAS("des3_ede"); |