5d26a105b5
This prefixes all crypto module loading with "crypto-" so we never run the risk of exposing module auto-loading to userspace via a crypto API, as demonstrated by Mathias Krause: https://lkml.org/lkml/2013/3/4/70 Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/*
|
|
* Glue Code for the asm optimized version of the AES Cipher Algorithm
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <crypto/aes.h>
|
|
#include <asm/crypto/aes.h>
|
|
|
|
asmlinkage void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
|
|
asmlinkage void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
|
|
|
|
void crypto_aes_encrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
|
|
{
|
|
aes_enc_blk(ctx, dst, src);
|
|
}
|
|
EXPORT_SYMBOL_GPL(crypto_aes_encrypt_x86);
|
|
|
|
void crypto_aes_decrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
|
|
{
|
|
aes_dec_blk(ctx, dst, src);
|
|
}
|
|
EXPORT_SYMBOL_GPL(crypto_aes_decrypt_x86);
|
|
|
|
static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
|
|
{
|
|
aes_enc_blk(crypto_tfm_ctx(tfm), dst, src);
|
|
}
|
|
|
|
static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
|
|
{
|
|
aes_dec_blk(crypto_tfm_ctx(tfm), dst, src);
|
|
}
|
|
|
|
static struct crypto_alg aes_alg = {
|
|
.cra_name = "aes",
|
|
.cra_driver_name = "aes-asm",
|
|
.cra_priority = 200,
|
|
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
|
|
.cra_blocksize = AES_BLOCK_SIZE,
|
|
.cra_ctxsize = sizeof(struct crypto_aes_ctx),
|
|
.cra_module = THIS_MODULE,
|
|
.cra_u = {
|
|
.cipher = {
|
|
.cia_min_keysize = AES_MIN_KEY_SIZE,
|
|
.cia_max_keysize = AES_MAX_KEY_SIZE,
|
|
.cia_setkey = crypto_aes_set_key,
|
|
.cia_encrypt = aes_encrypt,
|
|
.cia_decrypt = aes_decrypt
|
|
}
|
|
}
|
|
};
|
|
|
|
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, asm optimized");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS_CRYPTO("aes");
|
|
MODULE_ALIAS_CRYPTO("aes-asm");
|