Commit ce1d89ca authored by James Morris's avatar James Morris Committed by Linus Torvalds

[PATCH] Drop asm i586 AES code.

This patch reverts the i586 AES module.  A new one should be ready soon.
Signed-off-by: default avatarJames Morris <jmorris@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 30e74fea
......@@ -215,7 +215,6 @@ AES algorithm contributors:
Herbert Valerio Riedel
Kyle McMartin
Adam J. Richter
Fruhwirth Clemens (i586)
CAST5 algorithm contributors:
Kartikey Mahendra Bhatt (original developers unknown, FSF copyright).
......
......@@ -104,8 +104,7 @@ head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
libs-y += arch/i386/lib/
core-y += arch/i386/kernel/ \
arch/i386/mm/ \
arch/i386/$(mcore-y)/ \
arch/i386/crypto/
arch/i386/$(mcore-y)/
drivers-$(CONFIG_MATH_EMULATION) += arch/i386/math-emu/
drivers-$(CONFIG_PCI) += arch/i386/pci/
# must be linked after kernel/
......
#
# i386/crypto/Makefile
#
# Arch-specific CryptoAPI modules.
#
obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
aes-i586-y := aes-i586-asm.o aes-i586-glue.o
This diff is collapsed.
/*
*
* Glue Code for optimized 586 assembler version of AES
*
* Copyright (c) 2001, Dr Brian Gladman <brg@gladman.uk.net>, Worcester, UK.
* Copyright (c) 2003, Adam J. Richter <adam@yggdrasil.com> (conversion to
* 2.5 API).
* Copyright (c) 2003, 2004 Fruhwirth Clemens <clemens@endorphin.org>
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/linkage.h>
#define AES_MIN_KEY_SIZE 16
#define AES_MAX_KEY_SIZE 32
#define AES_BLOCK_SIZE 16
#define AES_KS_LENGTH 4 * AES_BLOCK_SIZE
#define AES_RC_LENGTH (9 * AES_BLOCK_SIZE) / 8 - 8
typedef struct
{
u_int32_t aes_Nkey; // the number of words in the key input block
u_int32_t aes_Nrnd; // the number of cipher rounds
u_int32_t aes_e_key[AES_KS_LENGTH]; // the encryption key schedule
u_int32_t aes_d_key[AES_KS_LENGTH]; // the decryption key schedule
u_int32_t aes_Ncol; // the number of columns in the cipher state
} aes_context;
/*
* The Cipher Interface
*/
asmlinkage void aes_set_key(void *, const unsigned char [], const int, const int);
/* Actually:
* extern void aes_encrypt(const aes_context *, unsigned char [], const unsigned char []);
* extern void aes_decrypt(const aes_context *, unsigned char [], const unsigned char []);
*/
asmlinkage void aes_encrypt(void*, unsigned char [], const unsigned char []);
asmlinkage void aes_decrypt(void*, unsigned char [], const unsigned char []);
static int aes_set_key_glue(void *cx, const u8 *key,unsigned int key_length, u32 *flags)
{
if(key_length != 16 && key_length != 24 && key_length != 32)
{
*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
return -EINVAL;
}
aes_set_key(cx, key,key_length,0);
return 0;
}
#ifdef CONFIG_REGPARM
static void aes_encrypt_glue(void* a, unsigned char b[], const unsigned char c[]) {
aes_encrypt(a,b,c);
}
static void aes_decrypt_glue(void* a, unsigned char b[], const unsigned char c[]) {
aes_decrypt(a,b,c);
}
#else
#define aes_encrypt_glue aes_encrypt
#define aes_decrypt_glue aes_decrypt
#endif /* CONFIG_REGPARM */
static struct crypto_alg aes_alg = {
.cra_name = "aes",
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(aes_context),
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(aes_alg.cra_list),
.cra_u = {
.cipher = {
.cia_min_keysize = AES_MIN_KEY_SIZE,
.cia_max_keysize = AES_MAX_KEY_SIZE,
.cia_setkey = aes_set_key_glue,
.cia_encrypt = aes_encrypt_glue,
.cia_decrypt = aes_decrypt_glue
}
}
};
static int __init aes_init(void)
{
return crypto_register_alg(&aes_alg);
}
static void __exit aes_fini(void)
{
crypto_unregister_alg(&aes_alg);
}
module_init(aes_init);
module_exit(aes_fini);
MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, i586 asm optimized");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Fruhwirth Clemens");
MODULE_ALIAS("aes");
......@@ -118,9 +118,9 @@ config CRYPTO_SERPENT
See also:
http://www.cl.cam.ac.uk/~rja14/serpent.html
config CRYPTO_AES_GENERIC
config CRYPTO_AES
tristate "AES cipher algorithms"
depends on CRYPTO && !(X86 && !X86_64)
depends on CRYPTO
help
AES cipher algorithms (FIPS-197). AES uses the Rijndael
algorithm.
......@@ -138,26 +138,6 @@ config CRYPTO_AES_GENERIC
See http://csrc.nist.gov/CryptoToolkit/aes/ for more information.
config CRYPTO_AES_586
tristate "AES cipher algorithms (i586)"
depends on CRYPTO && (X86 && !X86_64)
help
AES cipher algorithms (FIPS-197). AES uses the Rijndael
algorithm.
Rijndael appears to be consistently a very good performer in
both hardware and software across a wide range of computing
environments regardless of its use in feedback or non-feedback
modes. Its key setup time is excellent, and its key agility is
good. Rijndael's very low memory requirements make it very well
suited for restricted-space environments, in which it also
demonstrates excellent performance. Rijndael's operations are
among the easiest to defend against power and timing attacks.
The AES specifies three key sizes: 128, 192 and 256 bits
See http://csrc.nist.gov/encryption/aes/ for more information.
config CRYPTO_CAST5
tristate "CAST5 (CAST-128) cipher algorithm"
depends on CRYPTO
......
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