arch/x86/crypto/aes_32.c

   1 /*
   2  * Glue Code for optimized 586 assembler version of AES
   3  */
   4
   5 #include <crypto/aes.h>
   6 #include <linux/module.h>
   7 #include <linux/crypto.h>
   8
   9 asmlinkage void aes_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
  10 asmlinkage void aes_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
  11
  12 static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
  13 {
  14         aes_enc_blk(tfm, dst, src);
  15 }
  16
  17 static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
  18 {
  19         aes_dec_blk(tfm, dst, src);
  20 }
  21
  22 static struct crypto_alg aes_alg = {
  23         .cra_name               =       "aes",
  24         .cra_driver_name        =       "aes-i586",
  25         .cra_priority           =       200,
  26         .cra_flags              =       CRYPTO_ALG_TYPE_CIPHER,
  27         .cra_blocksize          =       AES_BLOCK_SIZE,
  28         .cra_ctxsize            =       sizeof(struct crypto_aes_ctx),
  29         .cra_module             =       THIS_MODULE,
  30         .cra_list               =       LIST_HEAD_INIT(aes_alg.cra_list),
  31         .cra_u                  =       {
  32                 .cipher = {
  33                         .cia_min_keysize        =       AES_MIN_KEY_SIZE,
  34                         .cia_max_keysize        =       AES_MAX_KEY_SIZE,
  35                         .cia_setkey             =       crypto_aes_set_key,
  36                         .cia_encrypt            =       aes_encrypt,
  37                         .cia_decrypt            =       aes_decrypt
  38                 }
  39         }
  40 };
  41
  42 static int __init aes_init(void)
  43 {
  44         return crypto_register_alg(&aes_alg);
  45 }
  46
  47 static void __exit aes_fini(void)
  48 {
  49         crypto_unregister_alg(&aes_alg);
  50 }
  51
  52 module_init(aes_init);
  53 module_exit(aes_fini);
  54
  55 MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, i586 asm optimized");
  56 MODULE_LICENSE("Dual BSD/GPL");
  57 MODULE_AUTHOR("Fruhwirth Clemens, James Morris, Brian Gladman, Adam Richter");
  58 MODULE_ALIAS("aes");