arch/x86/crypto/aes_glue.c

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