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crypto: sparc/des - switch to new verification routines

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Switch to the refactored DES key verification routines. While at it,
rename the DES encrypt/decrypt routines so they will not conflict with
the DES library later on.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ard Biesheuvel 2019-08-15 12:00:45 +03:00 committed by Herbert Xu
parent 4e2c820897
commit 8f467cf29f
1 changed files with 16 additions and 21 deletions
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37
arch/sparc/crypto/des_glue.c
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@ -12,7 +12,7 @@
#include <linux/mm.h>
#include <linux/types.h>
#include <crypto/algapi.h>
#include <crypto/des.h>
#include <crypto/internal/des.h>
#include <asm/fpumacro.h>
#include <asm/pstate.h>
@ -45,19 +45,15 @@ static int des_set_key(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen)
{
struct des_sparc64_ctx *dctx = crypto_tfm_ctx(tfm);
u32 *flags = &tfm->crt_flags;
u32 tmp[DES_EXPKEY_WORDS];
int ret;
int err;
/* Even though we have special instructions for key expansion,
* we call des_ekey() so that we don't have to write our own
* we call des_verify_key() so that we don't have to write our own
* weak key detection code.
*/
ret = des_ekey(tmp, key);
if (unlikely(ret == 0) && (*flags & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) {
*flags |= CRYPTO_TFM_RES_WEAK_KEY;
return -EINVAL;
}
err = crypto_des_verify_key(tfm, key);
if (err)
return err;
des_sparc64_key_expand((const u32 *) key, &dctx->encrypt_expkey[0]);
encrypt_to_decrypt(&dctx->decrypt_expkey[0], &dctx->encrypt_expkey[0]);
@ -68,7 +64,7 @@ static int des_set_key(struct crypto_tfm *tfm, const u8 *key,
extern void des_sparc64_crypt(const u64 *key, const u64 *input,
u64 *output);
static void des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
static void sparc_des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct des_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
const u64 *K = ctx->encrypt_expkey;
@ -76,7 +72,7 @@ static void des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
des_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
}
static void des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
static void sparc_des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct des_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
const u64 *K = ctx->decrypt_expkey;
@ -202,14 +198,13 @@ static int des3_ede_set_key(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen)
{
struct des3_ede_sparc64_ctx *dctx = crypto_tfm_ctx(tfm);
u32 *flags = &tfm->crt_flags;
u64 k1[DES_EXPKEY_WORDS / 2];
u64 k2[DES_EXPKEY_WORDS / 2];
u64 k3[DES_EXPKEY_WORDS / 2];
int err;
err = __des3_verify_key(flags, key);
if (unlikely(err))
err = crypto_des3_ede_verify_key(tfm, key);
if (err)
return err;
des_sparc64_key_expand((const u32 *)key, k1);
@ -235,7 +230,7 @@ static int des3_ede_set_key(struct crypto_tfm *tfm, const u8 *key,
extern void des3_ede_sparc64_crypt(const u64 *key, const u64 *input,
u64 *output);
static void des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
static void sparc_des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct des3_ede_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
const u64 *K = ctx->encrypt_expkey;
@ -243,7 +238,7 @@ static void des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
des3_ede_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
}
static void des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
static void sparc_des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct des3_ede_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
const u64 *K = ctx->decrypt_expkey;
@ -390,8 +385,8 @@ static struct crypto_alg algs[] = { {
.cia_min_keysize = DES_KEY_SIZE,
.cia_max_keysize = DES_KEY_SIZE,
.cia_setkey = des_set_key,
.cia_encrypt = des_encrypt,
.cia_decrypt = des_decrypt
.cia_encrypt = sparc_des_encrypt,
.cia_decrypt = sparc_des_decrypt
}
}
}, {
@ -447,8 +442,8 @@ static struct crypto_alg algs[] = { {
.cia_min_keysize = DES3_EDE_KEY_SIZE,
.cia_max_keysize = DES3_EDE_KEY_SIZE,
.cia_setkey = des3_ede_set_key,
.cia_encrypt = des3_ede_encrypt,
.cia_decrypt = des3_ede_decrypt
.cia_encrypt = sparc_des3_ede_encrypt,
.cia_decrypt = sparc_des3_ede_decrypt
}
}
}, {